FCC ID: O5VRB717A Marine Radar RA53

 

Safety Symbols To prevent the risk of personal injury or damage to the equipment, the following safety symbols are used to indicate safety-related information. Insure that you clearly understand the meanings of the symbols BEFORE using the equipment. Symbols Used in Manual

DANGER WARNING CAUTION This indicates a very dangerous procedure that could result in serious injury or death if not performed properly. This indicates a hazardous procedure that could result in serious injury or death if not performed properly. This indicates a hazardous procedure or danger that could result in light-to-severe injury, or that might damage the equipment, if proper precautions are not taken. Safety Symbols Used on Equipment The following safety symbols are used inside or on the equipment near operation locations to provide information about safety items and operation precautions. Insure that you clearly under-

stand the meanings of the symbols and take the necessary precautions BEFORE using the equipment. This indicates high voltages with a risk of serious electric shock if the part is touched. NEVER touch the part with bare hands, etc. The symbol prohibits the operation shown inside the symbol. (The example in the left prohibits disassembly.) The symbol indicates that the operation inside the symbol is potentially hazardous. (The example on the left indicates that the plug should be held when disconnecting it from the AC outlet.) This indicates the ground (earth) terminal. If the equipment cannot be grounded via the power cord, connect this terminal to ground. There is a risk of serious electric shock if the equipment is not grounded. RA53/RA54 Marine Radar Instruction Manual 1st Jun. 2001 (1st Edition) Document:

E-A53/54-1 1 For Safety WARNING and CAUTION for Scanner Unit and Antenna ;

1. Do not approach the antenna while it is transmitting. In addition, at inspection never look into the wave guide during transmission. Distance at which RF power density level to become 100 W/m2: 2 m 6 m Distance at which RF power density level to become 10 W/m2:

2. There is a risk of receiving electric shock if these parts are touched by accident. Only qualified personnel should remove covers on these parts. 1. 2. WARNING for Display Unit ;

There is a risk of receiving electric shock if these parts are touched by accident. Only qualified personnel should remove covers on these parts. 2 Installation To Customers Only qualified personnel should install the radar system in order to make sure proper radar performance and operation.

* To always use this equipment at its best condition, we recommend observing the operation and main-

tenance procedures in this manual from time to time. Further, try to operate the radar in good visibility condition to make comparison between visual impression and the radar picture presentation of the situation you are in. By doing this, you will be able to gain practical knowledge in interpreting the radar picture as well as the false echoes and blind sectors caused by the masts or funnel of the ship. Note that this equipment should only be used as a navigational aid and ships crew must make final decision on ships maneuvering.

* In case of functional failure, immediately turn off the radar and switch off the ships main power supply at the distribution switchboard. Inform your local service agent of the faulty situation to detail, where pos-

sible.

* This instrument uses crystal oscillators and a LCD backlight lamp, which are vulnerable to mechanical shock. Take utmost care when handling these items

* The mercury (Hg) is used in the LCD backlight lamp. When you attempt to discard your radar, observe the local code of practice for deposit. 3 Contents 1.1 Introduction............................................................................................................8 1.2 Organization of This Manual ................................................................................8 2.1 What is a radar ?....................................................................................................9 2.2 Characteristics of Radar Wave .............................................................................10 2.3 Terms Specific to Radars.......................................................................................13 For safety CHAPTER 1 OVERVIEW......................................................................... 8 CHAPTER 2 USING RADAR FOR THE FIRST TIME .......................... 9 CHAPTER 3 INSTALLATION................................................................. 16 3.1 Checking Contents of Your Package.....................................................................16 3.2 Checking Power Supply Voltage...........................................................................17 3.2.1 Power Supply Requirement .............................................................................17 3.2.2 Fuse Replacement.............................................................................................17 3.3 Determining Place of Installation.........................................................................18 3.3.1 Scanner unit......................................................................................................18 3.3.2 Display unit.......................................................................................................18 3.3.3 Shifting away from obstacles ...........................................................................19 3.4 Installing Scanner Unit.........................................................................................20 3.5 Installing Antenna Unit ........................................................................................21 3.6 Installing Display Unit..........................................................................................22 3.7 Connecting Cables .................................................................................................22 3.7.1 Interconnecting cable........................................................................................22 3.7.2 Grounding wire .................................................................................................24 3.7.3 Power supply cable ...........................................................................................25 3.8 Adjustment.............................................................................................................25 3.9 Connecting External Equipment to Display Unit ...............................................26 3.10 Countermeasure for Electromagnetic Interference...........................................26 3.11 When Discarding Your Radar .............................................................................27 CHAPTER 4 FUNCTIONS AND NAMES............................................... 28 CHAPTER 5 OPERATION....................................................................... 32 Basic operation of Radar .............................................................................................32 5.1 Turning ON and OFF the radar ...........................................................................32 5.2 Adjusting brilliance of screen and key-backlight.................................................32 5.3 Basic Operations....................................................................................................33 5.3.1 Powering On and Off ........................................................................................33 5.3.2 Transmitting .....................................................................................................33 5.3.3 Adjusting the brilliance of the screen and key-backlight...............................34 5.3.4 Changing the range scale (RANGE UP, RANGE DOWN).............................34 5.3.5 Automatic adjustment (AUTO)........................................................................34 5.3.6 Sensitivity adjustment (GAIN) ........................................................................ 35 5.3.7 Removing the sea clutter (STC) ....................................................................... 35 5.3.8 Removing the rain and snow clutter (FTC)..................................................... 36 5.3.9 Man Over Board (MOB).................................................................................... 36 5.3.10 Acquisition of a target (ACQ)............................................................................... 36 5.3.11 Select target number (TGT NUM)...................................................................... 36 4.1 Key layout ..............................................................................................................28 4.2 Rear panel ..............................................................................................................29 4.3 Radar screen (Single screen).................................................................................29 4.4 Radar screen (Dual screen) ...................................................................................30 4.5 Radar screen (All PPI screen) ...............................................................................30 4.6 Radar screen (All PPI/PPI screen)........................................................................31 4.7 Navigation screen ..................................................................................................31 4 5.4 Functions of Soft Keys........................................................................................... 37 5.4.1 Bearing measurement (EBL1) ......................................................................... 37 5.4.2 Bearing measurement (EBL2) ......................................................................... 37 5.4.3 Distance measurement (VRM1)....................................................................... 37 5.4.4 Distance measurement (VRM2)....................................................................... 38 5.4.5 Measuring the angle between two points (FL EBL2)..................................... 38 5.4.6 Measuring the distance between two points (FL VRM2) ............................... 38 5.4.7 Changing the group of Soft Keys(NEXT) ........................................................ 38 5.4.8 Erasing the heading marker temporarily (HDG OFF)................................... 39 5.4.9 Using the parallel cursor (///CSR).................................................................... 39 5.4.10 Establishment of the indication of the RANGE RINGS (RINGS) ............... 39 5.4.11 ON/OFF of variable range function (VAR RNG) .......................................... 39 5.4.12 Changing the display modes (MODE) ........................................................... 39 5.4.13 Guard Zone (GZ) ............................................................................................. 40 5.4.14 Off Center (OFF-C)......................................................................................... 40 5.4.15 Setting up the SLEEP function(SLEEP)....................................................... 41 5.4.16 Tuning adjustment (TUNE) ........................................................................... 41 5.4.17 Echo expansion (ST) ....................................................................................... 41 5.4.18 Displaying the target track (TRACK)............................................................ 41 5.4.19 Enlarging the selected areas (ZOOM) ........................................................... 42 5.4.20 Increasing the sensitivity (S/L)...................................................................... 42 5.4.21 Switching the screen (SEL WIN)................................................................... 42 5.4.22 Changing the screen color (PICTURE).......................................................... 43 5.4.23 Change to PPI screen (PPI)............................................................................ 43 5.4.24 Change to SEMI3D/PPI screen (SEMI3D).................................................... 43 5.4.25 Change to PPI/PPI screen (PPI/PPI) ............................................................. 43 5.4.26 Change to PPI/NAV screen (PPI/NAV) ......................................................... 44 5.4.27 Change to ALL PPI screen (ALL PPI) ........................................................... 44 5.4.28 Change to ALL PPI/PPI screen (ALL PPI2).................................................. 44 5.4.29 Canceling target tracking (DEL)................................................................... 44 5.4.30 Canceling all target tracking (ALL DEL) ..................................................... 44 5.4.31 Data display (DATA)...................................................................................... 44 5.5 MENU Operation .................................................................................................. 46

- List of MENU ......................................................................................................... 46 5.5.1 Mark Menu........................................................................................................ 47 5.5.1.1 Bearing measurement (EBL1)..................................................................... 47 5.5.1.2 Determining the distance (VRM1)............................................................... 48 5.5.1.3 Bearing measurement (EBL2)..................................................................... 48 5.5.1.4 Determining the distance (VRM2)............................................................... 48 5.5.1.5 Measuring the distance or angle between two points ( FL EBL2, FL VRM2 )

...................................... 48 5.5.1.6 Measuring the angle between two points (FL EBL2)................................. 49 5.5.1.7 Erasing the heading marker temporarily (HDG OFF) .............................. 50 5.5.1.8 Using the parallel cursors (///CSR).............................................................. 50 5.5.1.9 Displaying the RANGE RINGS (RINGS) ................................................... 51 5.5.1.10 Variable range function ( VAR RNG )....................................................... 51 5.5.1.11 To output the Cursor (TARGET) position data to external equipment .. 52 5.5.1.12 Setting the Distance and Bearing marker to follow the cross cursor

(+MK LINE) ........................................ 52 5.5.2 Nav (Navigation) Menu..................................................................................... 52 5.5.2.1 Changing the display mode (MODE) ......................................................... 53 5.5.2.2 Setting the Guard Zone (GZ) ....................................................................... 53 5.5.2.3 Shifting the display to a specific direction (OFF-C) ................................... 54 5.5.2.4 Setting up the SLEEP function(SLEEP)..................................................... 55 5.5.3 Echo Menu .......................................................................................................... 56 5.5.3.1 Sensitivity adjustment (GAIN).................................................................... 56 5.5.3.2 Removing the sea clutter (STC)................................................................... 57 5.5.3.3 Removing the rain and snow clutter (FTC) ................................................ 57 5.5.3.4 Adjusting the receiver tuning (TUNE)........................................................ 57 5.5.3.5 Echo expansion (ST) ..................................................................................... 58 5 5.5.3.6 Displaying the target track (TRACK)..........................................................58 5.5.3.7 Enlarging the selected areas (ZOOM) .........................................................59 5.5.3.8 Increasing the sensitivity (S/L)....................................................................59 5.5.4 SETUP Menu ....................................................................................................60 5.5.4.1 Selecting and setting up the screen mode (WINDOW) ..............................60

- Available funtions on each screen mode ...............................................................61

- Screen modes and Operations................................................................................62

(a) PPI Screen..................................................................................................62

(b) PPI/SEMI3D Screen ..................................................................................62

(c) PPI/PPI Screen ...........................................................................................62

- Operation.......................................................................................................63

(d) PPI/NAV Screen.........................................................................................64

(e) ALL PPI Screen..........................................................................................64

(f) ALL PPI/PPI Screen ...................................................................................64

(g) MOB Screen ...............................................................................................64 5.5.4.2 Switching screens on PPI/PPI screen (SEL WIN) ......................................65 5.5.4.3 Changing the screen color (PICTURE)........................................................65 5.5.4.4 Fault Diagnosis by Self Check (SYSTEM CHECK)....................................66 5.5.4.5 Changing the content of the setting (CUSTOM) ........................................68 5.5.4.5.1 Changing the settings of the soft keys (KEY ASSIGN)..........................69 5.5.4.5.2 Changing the content of settings 1(PRESET1).......................................71 5.5.4.5.3 Changing the content of settings 2 (PRESET2)......................................73 5.5.4.5.4 Changing the content of priority for NMEA input(NMEA PRESET) ...75 5.5.4.5.5 Changing the content of settings (ADJUSTMENT) ............................... 75

(1) Adjusting the distance (TIMING ADJ).................................................. 75

(2) Adjusting the angle (HEAD ADJ) .......................................................... 76

(3) Adjusting the receiver tuning (TUNING CAL) ..................................... 76

(4) Adjusting the antenna height (ANTENNA) .......................................... 77

(5) Setting the receiver GAIN (GAIN)......................................................... 77

(6) Setting the STC level (STC) ................................................................... 78 5.5.4.5.6 ATA preset (ATA PRESET)...................................................................... 78 5.6 ATA Operation ....................................................................................................... 79 5.6.1 ATA Board Specifications.................................................................................. 79 5.6.2 Operating Instructions ...................................................................................... 79 5.6.2.1 Outline........................................................................................................ 79 5.6.2.2 Setting ........................................................................................................ 79 5.6.2.3 Operation.................................................................................................... 80

(1) Acquisition of a target..................................................................................... 80

(2) Tracking the target ......................................................................................... 80

(3) Canceling target tracking............................................................................... 80

(4) Data display .................................................................................................... 80

(5) ATA indications..................................................................................................... 81 5.6.2.4 Interface ..................................................................................................... 81

(1) Data output ..................................................................................................... 81

(2) Log signal input .............................................................................................. 81 CHAPTER 6 MAINTENANCE AND INSPECTION .............................. 82 CHAPTER 7 TROUBLESHOOTING....................................................... 84 CHAPTER 8 PRODUCT SPECIFICATIONS.......................................... 86 7.1 Fault Diagnosis by Self-check ...............................................................................84 7.2 Inspecting Each Part .............................................................................................85 8.1 General ................................................................................................................... 86 8.2 Scanner Unit .......................................................................................................... 87 8.3 Display Unit ........................................................................................................... 87 8.4 ATA Unit ................................................................................................................ 88 8.5 External Interface.................................................................................................. 89 8.6 Standard set ........................................................................................................... 89 8.7 Options.................................................................................................................... 89 6 8.8 External dimensions and weight ...........................................................................89 8.9 External connection and function..........................................................................90 INTERCONNECTION DIAGRAM 1. RA53 GENERAL SYSTEM DIAGRAM 2. RA54 GENERAL SYSTEM DIAGRAM 3. 4. OUTLINE DRAWING DISPLAY UNIT 5. RA53/54 OUTLINE DRAWING SCANNER UNIT 6. FLUSH MOUNT PROCEDURE 7. INDEX 24W159631 E43BG11000 E38BG62000 E43BG11020 APPENDIX 7 1.1 Introduction CHAPTER 1 OVERVIEW The RA53/54 represents a compact, high-performance color marine radar that delivers a peak power output of 6 kW(RA53) or 12 kW(RA54) from the antenna and uses a 15-inch color liquid crystal display. In addition to a microcomputer, it incorporates a video signal processing LSI and a newly developed LSI chip exclusively designed for radars, thus providing versatile functionality and high performance. Features 1. A thin display unit incorporating a liquid crystal display. 2. Easy operation using only a few keys and menu screens. 3. A position of key and its function can be set in position ( Selectable soft function key). 4. Easy operation by the rotary knob. Gain, STC, FTC, EBLs, VRMs etc. can be controlled by the rotary knob. 5. A short and a long range echo can be seen at the same time ( Dual range radar). 6. Semi-3D screen display for easy identification of targets in noise. 7. Capable of continuous distance range changes (Continual variable range). 8. Waterproof construction of display allows installation at any desired location. 1.2 Organization of This Manual This manual provides a wide range of information necessary to operate the RA53/54 radar ranging from the basic knowledge on radars to the methods of operating, installing, and maintaining the radar. The manual also provides rather detailed technical information on how to adjust video display to obtain clear images. You are requested to read this manual thoroughly from beginning to end in order to un-

derstand the various functions of the radar so you can take full advantage of its advanced functions. If you are using a radar for the first time, refer to the basic data on radars in CHAPTER 2. This manual consists of the following chapters:

USING RADAR FOR THE FIRST TIME INSTALLATION FUNCTIONS AND NAMES OPERATION INSPECTION AND MAINTENANCE TROUBLESHOOTING PRODUCT SPECIFICATIONS

...................... CHAPTER 2

...................... CHAPTER 3

...................... CHAPTER 4

...................... CHAPTER 5

...................... CHAPTER 6

...................... CHAPTER 7

...................... CHAPTER 8 If you are an experienced user of radars, skip CHAPTER 2 and begin from CHAPTER 3. 8 CHAPTER 2. USING RADAR FOR THE FIRST TIME This chapter describes basic information on radars and explains technical terms used in radar op-

eration for those who are using a radar for the first time. 2.1 What is a radar ?

A marine radar is one of the navigation equipment installed on a ship. It emits a radio wave in very high frequency called a microwave from its antenna and receives the reflected radio wave from objects on the sea (e.g., other ships, buoys, and lands). The received radio wave is converted into an electric signal which is displayed on a display screen to indicate the presence of such objects. Although it is very dif-

ficult to find other ships or the destination coast with human eyes at night or in thick fog, a radar can detect objects on the sea helping you avoid danger when sailing. The antenna turns 360 degrees as it radiates waves, allowing you to grasp ambient conditions around your ship at a glance. Buoy Other ship Radar wave The radio wave radiated from the antenna is called a pulse wave and the radar performs transmis-

sion and reception alternately. Several hundred to several thousand pulse waves generally are tran s-

mitted while the antenna rotates one turn. Antenna (Rotating) Radar display Your ship Fig.2-1 What is a radar?

Antenna There are many types of antennas generally used for a radar. For example, these include a parabolic antenna and a slotted-array antenna. The performance of the antenna determines that of the radar. The dominant factors are the antenna's beam width and side lobe level. The narrower the beam width, the higher the resolution of the angle direction. The lower the side lobe level, the fewer the effect of a false echo. Side lobe A beam in one direction in which the strongest radio wave is radiated from the antenna is called the main lobe and beams in other directions are called "side lobes". The side lobe level refers to the difference in level between the largest side lobe and the main lobe. Beam width A beam width is def ined as the width of the main lobe at an angle where the radiated power is halved as measured from the position from which the strongest radio wave is radiated. Side lobe level Beam width Main beam Side lobe Antenna Fig.2-2 Antenna pattern 9 2.2 Characteristics of Radar Wave Radio waves from the radar propagate while bending slightly along the terrestrial surface. This D (NM) = 2.22 ( h1 + h2 ) characteristic varies dependent on the density of the atmospheric air. The sight distance D of a radar generally is said to be approximately 6% longer than the optical sight distance and is calculated using the equation below :

h1= antenna height in meters h2= target height in meters Radar Radio Wave where, Line of sight Earth h1 h2 Fig.2-3 Radar wave Targets difficult to display on screen The intensity of the reflected wave from a target depends on the distance, height, and size of the target, as well as its m aterial and shape. Targets constructed with FRP, wood, or other low-reflectance materials or those that have a small incident angle are difficult to display on a screen. Therefore, FRP and wooden ships, sandy beaches, and sandy or muddy shallows all are difficult to catch and require attention when monitoring on the screen. Especially, coast lines on the radar image appear to be present further from the ship than they are actually located. There-

fore, it is important not to misinterpret the available data. Invisible Visible Apparent coastline Actual(invisible) coastline 3 1 HU Shadow zones of radar Fig.2-4 Targets difficult to display on screen Radar waves are characteristic in that they propagate straight ahead. Therefore, if the ship's smokestack or mast is located near the antenna or there is a tall ship or mountain at the side of the ship, such an object generates a shadow behind it. In this case, some objects produce a complete shadow and some produce a partial shadow. In an extreme case, the shadow of an object may ex-

tend to a position far away and cannot be displayed on the screen at all. Since these shadows can be discovered when installing an antenna, the problem can be avoided by changing the place of an-

tenna installation to minimize the shadow. Targets in shadow zones are difficult to display on the screen. A false echo of an actually nonexistent object may sometimes app ear on the screen when sailing. The following explains the cause of each such phenomena. 10 False echoes A. Ghost echoes It sometimes happens that one large object near the ship appears at two different bearings. One is the actual echo and other is a ghost echo generat ed as the wave is re-reflected from the ship's own smokestack or mast. The former appears at the correct distance and bearing on the screen and the latter appears behind the smokestack or mast. This type of false echo is also gen-

erated by re-reflection of waves from bridges and quay walls other than the ship itself. Target 3 1 HU Direct reflection path Secondary reflection path Mast etc. Direction of ghost echo Real echo Ghost echo Fig.2-5 False echoes of radar (Ghost echoes) B. Multiple echoes If there is a large vertical reflecting plane near the ship as in the case when your ship passes alongside a large ship, the wave is repeatedly reflected back and forth between your ship and the other object. For this reason, two to four images appear on the screen at equal intervals in the same bearing. A false echo that is generated by such multiple reflections is called multiple echoes. In this case, an image appearing at the nearest position is the real echo. Multiple echoes disappear as the ship moves away from the reflecting object or its bearing changes. Therefore, it is not difficult to determine the correct image. 3 1 HU Real echo Multiple echoes Fig.2-6 False echoes of radar (Multiple echoes) C. False echoes caused by side lobe The radiant beam emitted from an antenna contains side lobes in directions other than that of the main beam. Since the side lobe level is low, it in no way affect s distant targets. However, if there is a strong reflecting target near the ship, it sometimes appears as a circular-arc false echo on the screen.

CAUTION When located near large targets such as land, the ship's mast, etc. sometimes appears as a false echo of circular-arc shape. 11 Main beam Side lobes 3 1 HU False sidelobe echoes Real echo Antenna D. Distant false echoes caused by duct phenomenon Fig.2-7 False echoes of radar (Caused by side lobe) Depending on meteorological conditions, duct phenomenon sometimes occurs in temperature g a location su r-

inverting layers of air. In such a case, the wave propagates erratically reachin prisingly far away from the ship. In this case, a target present at a distant location more than the radar's maximum distance range appears on the screen presenting a false echo that can be mis-

understood to be present nearer than the actual position. This phenomenon is attributed to the fact that since echo from the distant target arrives late, it gets out of the pulse repetition frequency and is displayed on the screen as an echo in the next frequency. If the target distance changes as you switch over the distance range, you can determine that it is a false echo. Radar interference If a radar operating in the same frequency exists near your ship, interference noise may appear on the screen that is caused by transmitted waves from that radar. This interference appears in various ways. In most cases, however, it appears as spiral or ra dial patterns. The RA53/54 radar has a function to eliminate interference. Use Radar inrterference 3 1 HU Fig.2-8 Radar interference of this function helps you minimize interference. 12 2.3 Terms Specific to Radar HM (Heading Marker) the advancing direction of your ship. North Mark This is a line -shaped marker used to indicate This marker indicates the north direction. It is a short line approximately 1/6 of the screen size. Display modes HM(Heading Marker) 0.75 0.25 HU North Mark Fig.2-9 Heading Marker and North Mark This refers to a radar's display modes. There are four display modes depending on the direction in which the top of the screen faces with respect to the ship. Ship's Heading Scheduled course North Ship's locus

(not displayed on screen) North Scheduled course 0.75 0.25 NU 0.75 0.25 CU 0.75 0.25 TM 0.75 0.25 HU HM North mark North EBL HU NU CU TM Fig.2-10 Display modes Head Up (HU) In this mode, the ship's heading always indicates the upward direction of the screen. This mode lets you know the relative positions of your ship and other ships or land. North Up (NU) In this mode, the north direction always indicates the upward direction of the screen, allowing you to compare your ships position with a marine chart as you navigate. Course Up (CU) The ship's heading in a course-up mode always indicates the upward direction of the screen as the bearing toward the destination. In this mode, the ship can be maneuvered to sail the shortest distance to the destination by steering it in such a way that its heading marker always directs to the upward direction of the screen. If the ship drifts due to tidal current, care must be taken be-

cause the fixed targets move to other positions. True Motion (TM) In this mode, the ship is displayed as if it is moving on a marine chart while the fixed targets such as islands and seashores are fixed in position. When the ship reaches a certain position on the screen (approx. 2/3 of screen size), the ship is placed back to the opposite side on the screen. (The top of the screen faces north.) 13 Note: Navigation equipment such as a gyrocompass or magnet compass must be connected to your radar system before it can be operated in NU, CU, and TM modes. (Refer to Section 3.9 for details on how to connect your radar to navigation equipment.) This is a circular-shaped marker whose size can be changed as desired. You can use this marker when you want to examine the distance of an echo from your ship. When measuring the distance of an echo from your ship, be sure to measure at a point close to the VRM (Variable Range Marker) 0.75 0.25 HU center of the echo image on the screen. EBL (Electronic Bearing Line) Echo VRM EBL VRM Fig.2-11 VRM This is a marker shaped like a straight line segment that can be changed to any direction centering 0.75 0.25 HU around the ship s position. Use this marker to examine the advancing direction of your ship and its relative angle with an echo. When measuring the angle of an echo, position the marker at the center of the echo. EBL VRM Echo EBL Fig.2-12 EBL 14 STC (Sensitivity Time Control) Since echo signals received by the radar are strong when they are coming from a short distance, it is difficult to compare signal strength between each reflected signal. To overcome this difficulty, signal strength is adjusted in such a way that the received signal levels coming from a short distance are low-

ered and those from a long distance are raised. This function should prove useful when there are large reflected waves from sea surfaces during rough weather. STC OFF STC ON 0.75 0.25 HU 0.75 0.25 HU Echo is suppressed around center Fig.2-13 STC FTC (Fast Time Constant) When it rains or snows, fine noise may appear over the entire screen, making it difficult to identify echoes. In such a case, echo images on the screen can be made easily distinguishable by adjusting FTC. FTC OFF FTC ON 0.75 0.25 HU 0.75 0.25 HU Small noises are reduced. Fig.2-14 FTC 15 CHAPTER 3. INSTALLATION This chapter describes procedures for installing the RA53/54 radar in your ship and precautions to Installing scanner unit Checking power supply voltage Determining place of installation Checking contents of your package be observed during installation. Follow the procedure below to install the radar. 3.1 Checking Contents of Your Package Connecting external equipment When discarding Your radar Installing display unit Connecting cables Adjustment First, unpack your package and see if all of the following items are included. Item Display unit Scanner unit Display cover Fuse Interconnecting cable Power supply cable M12 hexagonal bolt Carbon brush RA53 Q'TY 1 (RF720A) 1 (RB717A) 1 2 1 (10 m) 1 (2 m) 4 sets 2 RA54 Q'TY 1 (RF720A) 1 (RB718A) 1 2 1 (10 m) 1 (2 m) 4 sets 2 16 The package contains a 10m interconnecting cable as an accessory. Longer cable is also available as an option as listed in Tab.3-1. Tab.3-1 Optional Interconnecting Cable Cable length 15m 20m 30m RA53/RA54 Product No. 242J159098B 242J159098C 242J159098D In addition to the above components included with your package, the following items are also r e-

Item Tapping screw or M5 bolt and nut Grounding wire Grounding wire and crimp terminal quired. Please prepare them separately. 3.2 Checking Power Supply Voltage QTY 6 sets 1 1 set Remarks To install display unit Earth line for display unit Earth line for scanner unit 3.2.1 Power Supply Requirements For the RA53/54 radar to be operated normally, the power supply (battery) detailed in Tab.3-2 is required. Note also that if the battery is discharged, its voltage may fluctuate greatly, causing the radar to malfunction. When to starting up the radar system or starting transmitting, an additional rush cur-

rent is required on the power supply line. Carefully check the power supply system including wiring by using a circuit tester. Tab.3-2 Power Supply Requirements Supply voltage used Maximum current Allowable range of voltage DC12V DC24V 14A 6A 3.2.2 Fuse Replacement 10.2-41.6V 10.2-41.6V

*A.C. power cannot be used For the RA53/54 radar to be operated safely, proper rated fuses must always be used. Tab.3.3 is fuse rating table. All these fuses are provided as spares. Tab.3-3 Supply Voltage vs Fuse Ratings Main Fuse 15A/250V or 125V *

(6.3 dia. x 32mm) Motor Fuse T3.15A/250V or 125V

(5 dia. x 20mm) 17 3.3 Determining Place of Installation 3.3.1 Scanner unit A radar's target detection capacity varies greatly depending on the position of the scanner. An ideal position is a location high above the ship's keel line where there is no obstacle all around the scanner. In an actual ship, such an ideal location is limited by various factors. To comply with FCC RF exposure requirements, the radar antenna for this scanner must be installed to provide a separation distance of 80 cm or more from all persons. Therefore, consider the following suggestions when you determine the place to install the scanner:

(a) Install scanner at a position as high as possible. The higher the installation position, the longer the radio ranging distance. Install the scanner at a position as high as possible after considering the ship's hull structure and radar maintainability.

(b) Install scanner away from smoke-stack and mast If the scanner is installed at the same height as the smoke-stack or mast, radar waves may be blocked, creating shadow zones or generating false echoes. Therefore, do not install the scanner at such a position.

(c) Install scanner forward away from obstacle. To avoid creating shadow zones or generating false echoes, install the scanner at a position nearer to the ship's bow away from obstacles. When installing the scanner on a mast, posi-

tion it in front of the mast. (If obstacles cannot be avoided for the ship's structural reasons, refer to "Shifting away from obstacles" described Page 13.)

(d) Do not install the scanner near hot or heat-generating items. Do not install the scanner at a position where it may be subjected to smoke or hot air from smokestacks or heat from lamps.

(e) Install the scanner away from antennas of other equipment. Install the scanner as much away from the antennas of a direction finder, radio transceiver, etc. as possible. To eliminate the interference, install the scanner away from the antenna of radio transceivers.

! CAUTION

(f) Make the cable length as short as possible. Keep the distance from the scanner to the display unit within the standard cable length of 10 m. If you use longer cable for unavoidable reasons, limit the cable length to a maximum of 100 m for RA53/54. 3.3.2 Display unit The display unit can be installed on desktop, wall surface, or ceiling. Determine the place to install the display unit that is convenient for navigation and radar operation after considering the following suggestions:

(a) A place where you can see the ship's bow when you raise your face from the radar screen.

(b) A place where there is no direct sun-light to avoid display temperature up.

(c) A place where there is good ventilation and minimum vibration.

(d) A place where the display unit is further away than the minimum safe distance from a magnet compass as listed in Tab.3-4 below. Tab.3-4 Minimum Safe Distance from Magnetic Compass Master compass Steering compass Scanner unit Display unit 2.0m 2.0m 18 1.4m 1.4m 3.3.3 Shifting away from obstacles 1. Shifting from keel line By shifting the scanner position from the keel line to the starboard side of the ship, it is possible to move shadow zones to the port side which makes it possible to keep vision clear in the bow direction. The distance to be shifted can be obtained by calculation depending on the distance from the scanner to obstacles using the following equation:

Ls=0.4R+D/2 [m]

Ls=0.025R+D/2 [m]

(when R<15m)

(when R>=15m) where Ls = distance to be shifted from keel line D = diameter of obstacle on keel line R = distance from scanner to obstacle Scanner Unit Obstacle Ls D Keel line R Fig.3-1 Shifting from keel line 2. Obtaining sufficient dip angle Raise the scanner position so that there is a sufficient dip angle q available between the line of sight from the scanner to the obstacle and the horizontal line. By raising the dip angle above 5 , it is possible to prevent mid- and long-distance shadow zones. The radar cannot detect objects below the line of sight. q Horizontal line Line of sight Fig.3-2 Obtaining sufficient dip angle 19 3.4 Installing Scanner Unit When you have decided the place of installation, install the scanner unit. If a mount base like the one shown below is available, it may be easier to install the scanner. If such a mount base is not available in your ship, you may install the scanner directly to the roof, etc. In such a case, pay attention to the water drain tube located at the bottom of the scanner unit during installation. Do not use an edge that might trap water. Note : When the radar mast or mounting bracket has a curvature of more than 2mm, repair it or use spacers. Fig.3-3 Mount base Referring to Fig.3-4, open holes in diameter of 12 mm (0.47 in.) at five locations in the mount base and use these holes to fix the scanner unit to the mount base with hexagonal bolts. (Use the template included with this manual.) The bolts included with your radar equipment will suffice for mount base thickness of 9 to 14 mm (0.35 to 0.55 in.). If the mount base is thicker or thinner than this, prepare bolts listed in Tab.3-6. Forward 199

(7.83 in.) 185

(7.28 in.) Cable inlet 100 dia.(3.97 in.) Rotation Radius R550 (3 ft antenna) R700 (4 ft antenna) R1000 (6 ft antenna) 14 dia. 4

(0.55 in.) RA53/54 Scanner Unit:mm Fig.3-4 Hole positions for mounting scanner 20 Double nuts Spring washer Washer Scanner base Mount base M12 Hexagonal bolt Fix four screws Fig.3-5 Fixing Scanner Unit Tab.3-5 Bolts for Mounting Scanner Unit Thickness of mount base 1-4mm(0.04-0.16 in.) 4-9mm(0.16-0.35 in.) 9-14mm(0.35-0.55 in.) 14-19mm(0.55-0.75 in.) 3.5 Installing Antenna Unit Bolts necessary to fix scanner M12 x 45 (1.5mm pitch) M12 x 50 (1.5mm pitch) M12 x 55 (1.5mm pitch) M12 x 60 (1.5mm pitch) Material Remarks Stainless Stainless Stainless Stainless Included with radar Arrow Antenna radiation surface Remove the protective cap covering the rotary coupler on the top of the scanner. Match the antenna radiation direction to direction of the arrow markings on the rotation base and fix the antenna in position using the four M8 accessory bolts. 21 3.6 Installing Display Unit After you have finished installing the scanner unit, install the display unit in the same way. Choose 360

(14.17 in.) Fitting hole the proper bolt length according to the thickness of the surface on which you are going to install the display unit. Hole diameter is different using bolts from using tapping screw. When using tapping screw, open holes in adequate holes. When using bolts and nuts, open holes in diameter of 6 mm (0.24 in.). When you have opened holes, install the pedestal part first and then the display unit. Hole diameter 6mm Adequate Recommended screw M5 or equivalent 47 (1.85 in.) 37 (1.46 in.)

: Bolts and Nuts

: Tapping screws 240

(9.45 in.) Unit : mm Forward

(2.36 in.)

(3.31 in.)

(2.36 in.) 60 84 60 Fig.3-6 Hole positions for display unit Note : When you install the display by flush mount, refer to appendix "OUTLINE DRAWING". Slide off four triangle corner covers, and fix the display unit to the panel with screws. After fix ing the display unit, put on corner covers to the corner of the display unit. See APPENDIX.

! WARNING Avoid operating display in direct sunlight. The temperature inside becomes high and display may be broken. 3.7 Connecting Cables Lay cables firmly in place by following the instructions below. Note1: Do not bind the cable for the radar collectively with cables of other equipment (espe-

cially power supply cable). Note2: Leave clearance near the inlet of the display so you can remove the display unit eas-

ily. This facilitates installation and maintenance of the display unit. (Refer to A p-

pendix.) Note3: Because the cable has a connector fitted on the display and scanner side, if it is nec-

essary to pass cable through a narrow path, fix the scanner-side connector vertically using vinyl tape before passing cable through the path. Note4: Lay cable along the ship's hull or wall surface and attach it in place at intervals of about 40 cm. 3.7.1 Interconnecting cable (See Fig.3-9)

Ensure that the radar is off. Connect the cable to the socket labeled "SCANNER" on the rear panel of the display unit.

Use a T-wrench to remove the back covers of scanner unit. 22

Remove the two bolts securing the transceiver; pull out the transceiver after removing two co n-

nectors.(to Motor(J5), to Heading switch (J3) )

Remove the four bolts securing the fixing plate at the cable entrance.

Remove the metal fixing plate, rubber seal and washer that secure the cable. Pass the cable through as shown in the diagram below; replace the above items and tighten the bolts.

Return the transceiver to its original position and secure it with the removed bolts.

Connect 7-pin connector to J2 and 9-pin connector to J1 of PCB. And connect two connectors that were removed at .

Refit the scanner covers. Take care not to pinch the cable when refitting the cover. Fig.3-9 Interconnecting cable 23 3.7.2 Grounding wire Connect grounding wire before connecting power supply cable. Leakage current is too high.

! WARNING Connect grounding wire from the grounding terminal on the rear panel of the display unit to the ship's hull as shown below. Fig.3-10 Grounding display unit to earth Connect grounding wire from one of the bolts you have attached when installing the scanner unit to the ship's hull as shown in Fig.3-11. (The crimp terminal and grounding wire are not included with the radar equipment.) Scanner cover Grounding wire To ships hull Fig.3-11 Grounding scanner unit to earth 24 3.7.3 Power supply cable Power is fed through a knife switch ( or circuit breaker) and protective fuses, as shown in below. WARNING: Do not apply over 41.6V to Radar or Radar may be broken. Main switch panel

(Knife Switch with Fuses) Generator Switchboard Charger Storage Battery 12/24V Radar Display Unit DC voltage reference points Fit the power supply cable (included with your radar) to the receptacle labeled "POWER" on the rear panel of the display unit. And connect to power supply as follows. (When you do not connect external equipment, put tape on red and green wire.) Place the Fuse and connection part where there is no water splashes and the area is dry. If you extend the power supply cable, use a suitable cable as below. Ship's Power Voltage 12Vdc 24Vdc Cable conductor cross section 3.5 mm2 6.0 mm2 2.0 mm2 3.5 mm2 Cable max. length 3 m 5 m 6 m 10 m Power supply cable To display unit Red Green Gray Black White NMEA+

NMEA-

To external equipment Ground DC-

DC+

To power supply 3.8 Adjustment Fig.3-12 Power supply cable

! CAUTION Be sure to operate the following adjustment. If this is not adjusted properly, the radar picture does not display true image. When you have finished installing the scanner and display units and connecting cables, turn on the power to the display and scanner units and check to see if they operate normally without problem. Then make adjustments as detailed below and check to see if the units operate normally again. 1. TUNING 2. HEADING DIRECTION 3. DISTANCE Refer to Adjusting tuning circuit in 5.5.4.5.5 Refer to Adjusting angle in 5.5.4.5.5 Refer to Adjusting distance in 5.5.4.5.5 25 3.9 Connecting External Equipment to Display Unit The display unit has two channels of NMEA input. One is standard in power cable. The other is necessary to connect optional parts (Junction box with OPTION cable). OPTION connector is located at displays rear panel for connecting external equipment such as a GPS, LORAN, or gyro compass. You must have a Junction box with OPTION cable. (Refer to CHAPTER 8 (4) External interface.) Note: SIN/COS and MOB signals cannot be used on Junction Box. Other radar, slave monitor, External buzzer, Gyro I/F, SIN/COS. MOB(NMEA out) Other radar, slave monitor, External buzzer, Gyro I/F External NMEA equipment

(GPS,LORAN,etc.) External NMEA equipment

(GPS,LORAN,etc.) Junction box*note

(RZ704A)

:NMEA-

:NMEA+

To power supply POWER cable OPTION cable Green Red

* Junction box with OPTION cable (Order No. RZ704A) Fig.3-13 Connecting external equipment to display unit 3.10 Countermeasure for Electromagnetic Interference RA53/54 radar provides shields in the units and the inter-unit connection cable. When the radar, however, is closely installed to radio equipment such as VHF transceiver, UHF transceiver, etc., or the radar and/or radio equipment are not sufficiently grounded to the hull or ship's earth, the radar may happen to cause EMI trouble. Followings are general procedures for reducing EMI due to radars. When installing radars, refer to them, and also check the radio equipment EMI trouble with operating the radar and radio equipment. 26

(1) Installation Place of Radar The display unit, scanner unit and inter-unit connection cable should be located apart from the main unit, feeder, antenna coupler and antenna of radio equipment as far as possible. Especially, proper installation of the feeder, antenna coupler and antenna of radio equipment is very important to improve EMI trouble.

(2) Laying Power Supply Cables dar. Connection C should not be used. Following connections A and B are recommended to reduce conduction noise generated from ra-

Connection A

(Very Good) Connection B

(Good) Connection C

(Bad) RADAR RADIO EQUIPMENT SHIP'S SUPPLY SHIP'S SUPPLY RADAR SHIP'S SUPPLY RADIO EQUIPMENT RADAR SHIP'S SUPPLY RADIO EQUIPMENT All equipment should be firmly grounded at the earth nearest hull with copper plates or braided

(3) Grounding wires. Improvement Procedure for EMI

(1) Confirm grounding on the radar and radio equipment. However, some equipment, on which grounding is not always necessar y, have a possibility of EMI improving when taking off their grounding. Try to take off grounding.

(2) Confirm power supply cable connections and modify to the connection A or B above.

(3) Try to shift the display unit and inter

-unit connection cable of ra dar to be apart from radio equipment. tion cable of radar.

(4) Try to shift the feeder of radio equipment to be apart from each units and the inter-unit connec-

(5) Try to shift the antenna coupler and antenna of radio equipment to be apart from the scanner unit and inter-unit connection cable of radar. 3.11 When Discarding Your Radar When discarding your RA53/54 radar, consult the distributor to get information on precautions to be followed. Tab.3-6 below lists the primary component materials of the RA53/54 radar for your reference. Tab.3-6 Component Materials Display unit Material Front panel Rear panel Pedestal ADC12 ABS+PC ABS Scanner unit Material Radome Chassis Base Antenna AES A5052P ADC12 A5052P 27

 

 

5.5 MENU Operation List of MENU List of Main Menu NAV

(MAIN-MENU) ECHO

(MAIN-MENU) SETUP

(MAIN-MENU) MODE HU/HS/NU/CU/TM

(MANU/NMEA) ON/OFF GZ GAIN STC FTC AUTO/MAN AUTO/MAN/HARBOR AUTO/MAN WINDOW SEL WIN PICTURE SYSTEM CHECK CUSTOM PPI / SEMI3D+PPI /

PPI+PPI / PPI+NAV /

ALL PPI /

ALL PPI+PPI / MOB DAY/NIGHT KEY ASSIGNMENT PRESET1 (SUB-MENU) PRESET2 (SUB-MENU) NMEA PRESET ADJUST (SUB-MENU) OFF-C ON/OFF SLEEP OFF/5min/10min/

15min TUNE ST TRACK OFF/15SEC/30SEC/

AUTO/MAN OFF/ST1/ST2 1MIN/3MIN/6MIN/

CONT ZOOM ON/OFF SL SHORT/LONG PRESET2 (SUB-MENU) MARK

(MAIN-MENU) EBL1 VRM1 EBL2 ON/OFF ON/OFF ON/OFF OFF VRM2 ON/OFF FL EBL2 ON/OFF FL VRM2 ON/OFF HDG OFF

///CSR RINGS VAR RNG TARGET

+MK LINE List of Custom Menu ON/OFF ON/OFF ON/OFF ON/OFF PRESET1 (SUB-MENU) HM FLSH STERN M NORTH M STBY BUZ VOL RM UNIT DEPTH TEMP EBL BRG WP BRG HEAD INPUT HEAD

+MK MODE P TABLE ON/OFF ON/OFF ON/OFF NAVI/NOR OFF/LOW/HIGH NM / KM / SM M / FT / FM

C / F REL / TRUE / MAG TRUE / MAG NMEA / SIN, COS /12BIT / 10BIT TRUE / MAG DIST/BRG / LAT/LON 0 - 2 1-7 GZ LEVEL IN/OUT GZ MODE ON/OFF HOLD RDR/MONI/NAV DISPLAY OFF / CONT / INT EXT BUZ 1080/1024/2048/4096/360 IN P/R 1080/1024/2048/4096/360 OUT P/R ON / OFF DEMO OFF / IR1 / IR2 IR NMEA / MANU 0.0 KT / LOG 200P SPD SET LANGUAGE 15 countries SCAN SPEED STD / HIGH ADJUST (SUB-MENU) TIMING ADJ HEAD ADJ TUNING CAL. ANTENNA GAIN STC 1-9 1-30 1-16 CPA SET TCPA SET VECT SET. VECT MODE ATA ATA PRESET 0.0 NM 0 MIN 6 MIN REL/TRUE ON/OFF MAIN-MENU

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. 25 HU ECHO MARK NAV ECHO SETUP GAIN > MANU AUTO

STC FTC STBY TUNE ST

TRACK ZOOM S/L SUB-MENU 46 5.5.1 Mark Menu Setting for markers and cursors

<Common operations for the MARK menu>

xxx = keys to press

(Up to the point when "MARK" menu is selected from the main menu) Press the "MENU" key and select "MARK" from the displayed 4 main menus using the left-right cursor.

(The contents of the selected MENU will appear on a pull-down display in accordance with the movement of the left-right cursor.) Further explanations on the MARK menu are made assuming that "common operation for the MARK

(1) Select EBL1 from the pull-down display items using the up-down cursor key, and press the "ENT" key.

(2) When the ON/OFF sign is displayed beside the letters EBL1, select ON with the up-down cursor keys and MENU Left/Right

(Select MARK) menu" has already been completed. 5.5.1.1 Bearing measurement (EBL1)

.75

.25 HU press the "ENT" key.

0.23NM MARK MARK EBL1 >

VRM1 >

EBL2 >

ECHO SETUP AT NAV ON OFF

(3) When you press the "ENT" key, an electric bearing line (EBL1) appears and the angle from the direc-

tion of the ships head which is set at 0 degree will appear in a reverse display in the lower left corner of the screen.

(4) Place the EBL on the center of the target with the rotary control and read out the bearing. You can use the EBL functions in the following modes. 75

.25 HU 1 0.0

(a) Press the "ENT" key to show the EBL1 display still on the screen.

(b) Press the "MENU" key without the EBL1 display.

(c) Pressing another function key will lead to the function of that key with the EBL1 display still on the screen. Note: 1 xxx.x indicates the relative bearing measured by BL1. ENT Up/Down

(Select EBL1) Other function key Up/Down

(Select ON) ENT

(c) Control knob

(EBL1 operation) ENT MENU

(a)

(b) Note: The displayed EBL angle is the relative bearing to ships heading or true bearing against true north, depending on the setting of "EBL BRG" in the "SETUP" menu. 47 Other function key

(a)

(b)

(c) 5.5.1.2 Determining the distance (VRM1)

(1) Select VRM1 from the pull-down display items using the up-down cursor key, and press the "ENT" key.

(2) When the ON/OFF sign is displayed beside the letters VRM1, select ON with the up-down cursor keys and press the "ENT"

key.

(3) If you press the "ENT" key, the variable range marker1 (VRM1)

.75

.25 HU and its distance in a reverse display appear in the lower left corner of the screen (See Note). 1 0.00NM

(4) To measure the distance to a target, place the VRM1 on the front edge of the target with the rotary control and read the distance.

(5) You can use the VRM1 functions in the following modes.

(a) Press the "ENT" key to show the VRM1 display still on the screen

(b) Press the "MENU" key without the VRM1 display.

(c) Pressing another function key will lead to the function of that key with the VRM1 display still on the screen. Up/Down

(Select VRM1) (Select ON) (VRM1 operation) ENT Control knob ENT Up/Down ENT MENU Note: 1 xx.xx NM indicates VRM1. 5.5.1.3 Bearing measurement (EBL2) Refer to the section Bearing measurement (EBL1). The "EBL2" will appear in a reverse display in the lower right corner of the screen. Note: 2 xxx.x indicates the bearing measured by EBL2. 5.5.1.4 Determining the distance (VRM2) Refer to the section Determining the distance (VRM1). The "VRM2" will appear in a reverse display at the lower right corner of the screen. Note: 2 xx.xx NM indicates the distance measured by VRM2. 5.5.1.5 Measuring the distance or angle between two points ( FL EBL2, FL VRM2 ) Determining the distance (VRM2)

(a) Preparation for the measurement

"ENT" key.

(1) Use the up-down cursor keys to select FL VRM2 from the pull-down display items, and press the

(2) Use the up-down cursor keys to select ON from the ON/OFF display beside the FL VRM2 items, and press the "ENT" key. The SET START POINT item will be shown and a small cross mark appears. (Once this is set, the "ON" state continues unless any other change is made.) Up/Down ENT Up/Down ENT ----------------------- FL VRM2 is turned

(Select FL VRM2)

(Select ON)

(b) Setting a reference point for the distance measurement ON and the small cross mark appears. Use the left-right and up-down cursor keys to place the small cross mark on one of the two echoes whose distance is to be measured, and press the "ENT" key. Up/Down & Left/Right

(Place the cross cursor on an echo)

----------------------- ENT Criterion of the reference point is set. 48

(c) Measuring To measure the distance between two targets Perform the operations in the above mentioned "Common operation for the MARK menu" and

"measuring the distance(VRM2)", and place the VRM2 on other target. VRM2 will be shown on the screen around the fixed cross cursor. The distance display " 2 xx. NM" will be shown in the lower right corner of the screen, showing the distance between the two targets. Note: EBL2 and VRM2 does not follow to "ZOOM" and "OFF-C" function. FL VRM2 Indication of VRM2 Small cross mark SET START POINT Center of VRM2

.75

.25 HU

.75

.25 HU 2 0.72NM Place the VRM2 on other target 5.5.1.6 Measuring the angle between two points (FL EBL2)

(a) Preparation for the measurement

(1) Use the up-down cursor keys to select FL EBL2 from the pull-down display items, and press the

(2) Use the up-down cursor keys to select ON from the ON/OFF display beside the FL EBL2 items, and press the "ENT" key. SET START POINT is displayed and a small cross mark appears. (Once this is set, the "ON" state continues unless changes are made.)

"ENT" key. Up/Down ENT Up/Down ENT ---------------------- FL EBL2 is turned

(Select FL EBL2)

(Select ON)

(b) Setting a reference point for measurement of the angle. ON and the small cross mark appears. Use the left-right and up-down cursor keys to place the small cross mark on one of the two echoes whose angle will be measured, and press the "ENT" key.

-------- ENT Criterion of the reference point is set. Up/Down & Left/Right

(Place the cross cursor on an echo)

(c) Measuring Perform the operations in the above mentioned "Common operation for the MARK menu" and

"measuring the distance(EBL2)", and place the EBL2 on other echo. EBL2 is displayed on the screen based on the placed fixed cross cursor.

" 2 xx. xx" which is displayed at the lower right will be the angle between the two points. Note: The displayed EBL angle is relative to heading or true to north, depends on the setting of "EBL BRG" in the "SETUP" menu. 49 To measure the angle between two points Origin of EBL2 FL EBL2

.75

.25 HU small cross mark cross mark SET START POINT 5.5.1.7 Erasing heading marker temporarily (HDG OFF)

(1) Use the up-down cursor key to select HDG OFF from the pulled down menu.

(2) Press the ENT key to turn off the heading marker, it stays off as long as you press and hold the key. 75

.25 HU

.75

.25 HU 2 20.3 indication of EBL2 Not displayed while the ENT key is held down. Up/Down ENT The heading marker is off as long as you press and hold the ENT key down.

(Select HDG OFF) 5.5.1.8 Using parallel cursor (///CSR) Using the parallel cursor, you can monitor the behavior of other targets whether they are navigating along with the course or, changing their course to someway.

(1) Use the up-down cursor key to select ///CSR from the pull-down menu, and press the ENT key (ON/OFF display beside the ///CSR item).

(2) Use the up-down cursor key to select ON.

(3) Press the ENT key. Parallel cursor will appear on the screen. As you move EBL, the parallel cursor also moves. To cancel the ///CSR function, select OFF in (2). EBL1

.75

.25 HU Parallel cursor ENT Up/Down (Select ON) Up/Down (Select OFF) ENT ---------------- Parallel cursor appears. ENT ------------ Parallel cursor disappears. Up/Down

(Select ///CSR) Note: Interval of ///CSR same as fixed range marker.

///CSR moves with EBL1. 50 5.5.1.9 Establishment of the indication of the RANGE RINGS (RINGS)

(1) Press the up-down cursor key to select RINGS from the pull-down menu, and then press the ENT key.

(The ON/OFF sign will appear beside the letters RINGS)

(2) Use the up-down key to select ON or OFF and press the ENT key Select ON Select OFF Range Rings ON Range rings OFF ENT Up/Down

(Select RINGS) Up/Down (Select ON) Up/Down (Select OFF) ENT -------------Range rings appear. ENT --------- Range rings disappear.

<Number of range rings and range interval>

RA53 Range Number of Rings 0.125 2 0.25 2 Interval 0.0625 0.125 RA54 Range Number of Rings 0.125 2 0.25 2 Interval 0.0625 0.125 0.5 2 0.25 0.5 2 0.25 0.75 3 0.25 0.75 3 0.25 3 6 0.5 3 6 0.5 6 6 1 6 6 1 12 6 2 12 6 2 24 6 4 24 6 4 48 6 8 48 6 8 64 4 16 72 6 12 1.5 6 0.25 1.5 6 0.25

.75

.25 HU

.75

.25 HU Range rings ON Range rings OFF 5.5.1.10 Variable range function ( VAR RNG ) The range scales are allocated as 0.5--0.75--1.5--3.0--.....as standard. However, using this function, a consecutive range scaling is also available such as 0.5--0.6--0.7--0.8--.....

(1) Use the up-down cursor keys to select VAR RNG from the pull down menu and press the "ENT" key.

(2) When you select ON with the up-down cursor key from the ON/OFF display beside the VAR RNG item, and then you press the "ENT" key, the VAR RNG function becomes valid and VAR will be displayed in the upper left corner of the screen (beside MODE). Setting procedure Up/Down ENT Up/Down (Select ON) ENT VAR RNG function is

(Select VAR RNG)

(3) The range changes continuously by pressing the up or down cursor key while the VAR RNG function is ENT VAR RNG function is turned OFF. on, and it changes in step with the "RANGE UP" or "RANGE DOWN" key. Up/Down (Select OFF) turned ON. Method of use Up/Down -------------------------------------Range changes continuously RANGE UP & RANGE DOWN ---------Range changes in step

(4) To cancel the vari-range function, press any key except the "RANGE UP" and "RANGE DOWN" keys. 51 output. 5.5.1.11 To output the Cursor ( TARGET ) position data to external equipment Move the cross cursor with the up-down and left-right keys to the position which position data to be Use the up-down cursor keys to select TARGET from the pull-down menu, and press the "ENT" key. The latitude and longitude data of that position will be output to NMEA port with TLL format. Up/Down ENT output the L/L position of the cursor

(Select TARGET) Note: When you activate this function, nothing happens on the screen. 5.5.1.12 Having the Distance and Bearing markers follow the cross cursor (+MK LINE)

(1) Use the up-down cursor keys to select +MK LINE from pull down menu and press the "ENT" key.

(2) Select ON with the up-down cursor key from the ON/OFF display beside the +MK LINE item.

(3) Press the "ENT" key to make the +MK LINE function valid, and the distance/bearing marker will be placed on the cross cursor. Setting procedure Up/Down ENT

(Select +MK LINE)

(4) The distance/bearing markers will follow the cross cursor until +MK LINE function is turned OFF. ENT +MK LINE function is turned OFF. Up/Down (Select ON) Up/Down (Select OFF) ENT +MK LINE function is turned ON. 75

.25 HU

+MK POS 230.0 0.47 5.5.2 Nav (Navigation) Menu

+MK LINE OFF Radar functions for navigation aid are in this menu. 75

.25 HU

+MK POS 230.0 0.47

+MK LINE ON The distance/bearing marker follows to cross cursor. EBLs and VRMs can be used separately. xxx = keys to press

< Common operations for the NAV menu >

(Up to the point when "NAV" menu is selected from the main menu) Press the "MENU" key and select "NAV" from the displayed 4 main menus using the left-right cursor. (The contents of the selected MENU will appear on a pull-down display in accordance with the movement of the left-right cursor.) MENU Left/Right

(Select NAV) Further explanation about the NAV menu will be conducted on the assumption that this "common operation for the NAV menu" has already been completed. 5.5.2.1 Changing display mode (MODE)

(1) Select MODE from the pull-down display items using the up-down cursor key, and press either the

"ENT" key. 52

0.23 NM

.75

.25 HU L UP/DOWN

(Select MODE)

(2) When the MODE sign is displayed beside the MODE item, select a mode with the up-down cursor keys and press the "ENT" key.

(3) The display mode indicates upper-left on the screen. NAVIGATION AT MARK NAV ECHO SETUP MODE

GZ OFF-C SLEEP

HU HS NU CU TM UP/DOWN ENT

(Select HU)

(Select HS)

(Select NU)

(Select CU)

(Select TM) ENT ENT ENT ENT ENT HU(Head up) HS(Head set) NU(North up) CU(Course up) TM(True motion) Note1: Navigation equipment (gyrocompass, magnet compass, or GPS) must be connected to your radar in NU, CU and TM modes. Note2: In TM modes it is necessary to set as follow (1) or (2).

(1) Input of speed information from NMEA. (2) Set your ships speed manually. Note3: TM mode is only available on single PPI screens (PPI and All PPI modes). If the screen type in TM mode switches to dual PPI modes, such as PPI/PPI and Semi 3D/PPI, the TM screen mode will be automatically changed to NU mode. 5.5.2.2 Setting the Guard Zone (GZ) The following procedure sets up the distance, depth and the width of the guard zone. Once set, the guard zone detects the existence of echoes exceeding a prefixed level and then generates an audio alarm (IN MODE) or, it detects non-existence of echoes that has left the guard zone (OUT MODE).

(1) Select GZ from the pull-down menu using the up-down cursor keys, and press the ENT key. The ON/OFF sign is displayed beside the letters GZ. Up/Down ENT ON/OFF sign is displayed.

(2) Select ON by common operation for the GZ menu, and press the ENT key. 53 GZ IN SET CENTER POINT

(3) The GZ IN sign appears in the left side of the screen, showing the present mode setting. A small cross cursor appears on the screen center for setting up the guard zone. A prompt "SET CENTER POINT appears at the bottom, requesting to define the center of the guard zone.

(4) Move the cross cursor to the center of the warning zone to be set, using the up-down and left-right cursor keys, and then press the "ENT" key. The guard zone appears now.

(5) From the cross cursor position as set in step (4), expand the guard zone as follows. GZ IN ENT Use the right cursor key to enlarge the guard zone width and left cursor key to contract the width using the left cursor. The guard zone expands and contracts with respect to the cross cursor position. The mode (IN or OUT) is displayed when the state is ON. Nothing is displayed when it is OFF.

(6) After setting the guard zone, fix it by pressing the "ENT" key. To cancel the guard zone function, select OFF by common operation for the GZ menu, and press the ENT key. Up/Down & Left/Right ENT Up/Down & Left/Right ENT -------------------------------- Setting completed

(Setting the center of GZ)

(Setting the scope of GZ) Stop the alarm tone To momentarily silence the audio alarm, press any key on the control panel. In this state, the guard zone function is still operative. To permanently turn off the guard zone function, select "OFF" from the GZ menu. Note1: To switch the IN or OUT mode, refer to Guard Zone Mode in section 5.5.4.5.3 Changing the Note2: To set the guard zone level, refer to Guard Zone LeveL in section 5.5.4.5.3 Changing the content content of settings 2 (PRESET2) of settings 2 (PRESET2) 5.5.2.3 Shifting display in specific direction (OFF-C) Displaying the location specified by the cross cursor as the vessel's location.

(1) Select OFF-C from the pull-down display items using up-down cursor key, and press the "ENT" key.

(2) When the ON/OFF sign is displayed beside the OFF-C item, select ON with the up-down cursor keys and press the "ENT" key.

(3) OFF-C is displayed in the upper right corner of the screen and "SET OFF CENTER POINT" at the bottom of the screen, and setting is ready to be entered. Move the cross cursor with the cursor keys to move own ships position to an intended location, and press the "ENT" key. Own ships position will be moved to cursor's location. The reversed OFF-C sign will be put back to normal display, indicating the off-centered screen is now set up.

(4) To cancel OFF-C function, either select OFF in (2) 54 Up/Down

(Select OFF-C) ENT Up/Down

(Select ON) ENT Left/Right & Up/Down ENT ------- Set OFF-C

(Select OFF) Note: The VRM2 and EBL2 do not follow the OFF-C function while they are floated. The function operates only on PPI screen. ENT Move the cross cursor indicates "OFF-C" state is entered

------------------------------------- Cancel OFF-C

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.25 HU OFF-C SET OFF-C POINT 5.5.2.4 Setting of the SLEEP function(SLEEP) This function allows a 30-second-transmission during pre-fixed times. Following the transmission cy-

cle, a power-saving mode will be activated with the screen display put into ST'BY state (the scanner-OFF state) and the LCD backlighting turns off, accordingly. This action is repeatedly executed. For practicing purpose, set a guard zone and have the warning signal automatically activated every prefixed period.

(1) Use the up-down cursor keys to select SLEEP from the pull-down menu, and press the "ENT" key.

(2) When the OFF/5min/10min/15min display appears beside the SLEEP item, select a time to be set with the up-down cursor keys.

(3) Press the "ENT" key to complete the setting. To cancel the SLEEP function, select OFF in step (2). After setting a SLEEP mode, a transmission takes place and 30 seconds later the ST'BY state is estab-

lished, turning the backlight off. (Power-saving mode). Two minutes before the prefixed time the backlight turns on again and the 2-minute timer starts. Then, at the fixed time another 30-second-transmission starts. This series of actions are repeated. If you press any key during the course of this action, the SLEEP function will be canceled.

(a) Setting procedure

(Select SLEEP)

(b) Action after setting SLEEP setting ( 5min. )

^ (Under Tx) ^

Up/Down ENT Up/Down

(Select OFF) ENT

------------------------------ SLEEP function is turned OFF

(Select 5min.)

(Select 10min.)

(Select 15min.) ENT ENT ENT POWER ------- 30-second-transmission every 5 min. POWER ------30-second-transmission every 10 min. POWER ----- 30-second-transmission every 15 min. Transmission Setting completed

(Under power-saving mode) ^

(2min. timer in use)

^ (Under Tx) ^ (Under power-saving mode)

(Operation) 0 sec. TX Start 30 sec. TX OFF 3 min. Backlight ON Countdown start 5min. Tx Start 5and a half min. TxOFF

(Time used)

(Action) 55

-- What happens if a key is pressed after a SLEEP mode setting?

If a transmission has started and you press a key after setting a SLEEP mode, power-saving mode will be activated 30 seconds after a key is pressed.

-- What happens if a key is pressed during the SLEEP mode?

a) If you press a key during the power-saving mode, the SLEEP function will be canceled and b) If you press a key while the 2-minute timer is in active, or during transmission, the SLEEP the 2-minute timer starts. function will be canceled. 5.5.3 Echo Menu xxx = Keys to press This pull-down menu provides various pre-settings for the radar PPI video shown on the screen.

<Common operations for the ECHO menu >

Press the "MENU" key and select "ECHO" from the displayed 4 main menus using the left-right cursor. All items of the ECHO menu will be shown in a pull-down form as shown below. MENU Left/Right

(Select ECHO) ECHO MARK NAV

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.2 5 HU L

0.23 NM AT SETUP AUTO MANU ECHO

GAIN STC FTC TUNE ST

(1) Use the up-down cursor keys to select GAIN from the pull-down display items, and press either the 5.5.3.1 Sensibility adjustment (GAIN)

"ENT" key or the right cursor key.

(2) Select MENU from the MANU/AUTO display beside the GAIN item using the up-down cursor keys, and press the "ENT" key.

(3) The present state of GAIN is displayed in reverse form on the left side of the screen as G 35 , showing the gain setting is ready for entry.

(4) Turn the rotary control, observing the screen. The figure shown on the screen changes within a range of 0 and 99.

(5) The GAIN adjustment completes by pressing the "ENT" key after the setting. When you wish to enter the AUTO function, select AUTO in step (2) and press the "ENT. G 35 56 The setting value is displayed during MANUAL op-

eration. AT is displayed during AUTO operation.

(The same applies to STC, FTC and TUNE.) Up/Down ENT Up/Down

(Select GAIN)

(Select MANU) Control knob ENT ------------Set to MANU mode

(Select AUTO) ENT ----------------------------------- Set to AUTO mode

(GAIN adjustment) 56 5.5.3.2 Removing sea clutter (STC) Refer to the section, Sensibility adjustment (GAIN). Up/Down ENT Up/Down too.

(Select STC) Note: When you select the MANU mode, the GAIN and FTC functions will be switched to MANU mode,

|->(Select MANU)

|->(Select AUTO)

(STC adjustment) Control knob

------------------------------------Set to AUTO mode ENT - Set to MANU mode ENT ENT Note: When you select the HARBOR mode, FTC will be switched to MANU mode. 5.5.3.3 Removing rain and snow clutter (FTC) Refer to the section, Sensibility adjustment (GAIN). Up/Down ENT Up/Down

(Select FTC)

|->(Select MANU)

|->(Select AUTO) ENT Control knob ENT -- Set to MANU mode

(FTC adjustment) ENT

------------------------------------Set to AUTO mode 5.5.3.4 Adjusting the receiver tuning (TUNE) Refer to the section, Sensibility adjustment (GAIN). Use the following key operations to set up the tuning. Up/Down ENT Up/Down

(Select TUNE)

|->(Select MANU)

|->(Select AUTO) ENT Control knob ENT ---- Set to MANU mode

(TUNE adjustment) ENT

------------------------------------Set to AUTO mode 35 Indicated setting value on manual mode, AT on auto mode 5.5.3.5 Echo expansion (ST) This function stretches the echo towards range, for easy recognition of the target on the screen. Two types of the echo expansion is available. Select ST1 or ST2 from the menu.

(1) Use the up-down cursor keys to select ST from the pull-down display items, and press the "ENT" key.

(2) Select ST1 or ST2 from the display beside the ST item using the up-down cursor keys, and press the

"ENT" key. Up/Down ENT Up/Down

(select ST1) ENT set ST1

(select ST2) ENT set ST2

(select OFF) ENT ST OFF 57

( expansion rate ST1<ST2 )

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5.5.3.6 Displaying the target track (TRACK) ST function is OFF ST1, or ST2 display, no display on OFF state The picture to display echoes expanded in the direction of the distance key.

(1) Use the up-down cursor keys to select TRACK from the pull-down display items, and press the "ENT"

(2) Select 15SEC, 30SEC, 1MIN, 3MIN, 6MIN, or CONT from the display beside the TRACK item using the up-down cursor keys, and press the "ENT" key.

(3) If you select 15SEC, the sign "TRK 15S" appears on the left side of the screen, entering the assigned track interval. The TRK 15S indicates the length of the track, displaying a 15-second-long sailing track at maximum. Note: When PPI+PPI or ALL PPI+PPI screen mode is used, TRACK function can be used only on CONT mode. Tracks of target

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.25 HU Present echo moving direction TK 15SEC

disappears after selected time the length of the track The key sequence for setting up the ships track up/down ENT up/down

(select OFF) ENT TRACK OFF

(select 15SEC) ENT set 15sec. track

(select 30SEC) ENT set 30sec. track

(select 1MIN) ENT set 1 min. track

(select 3MIN) ENT set 3 min. track

(select 6MIN) ENT set 6 min. track

(select CONT) ENT set continue track 5.5.3.7 Enlarging the selected areas (ZOOM) Using this function, you can enlarge the selected zone around the cross cursor twice as large as the one displayed on the screen.

(1) Use the up-down cursor keys to select ZOOM from among the pull-down display items, and press the

(2) Select the ON using up-down cursor keys from the ON/OFF display beside the ZOOM item, and press

"ENT" key. the "ENT" key. 58

(3) A small cross cursor and the prompt "SET ZOOM POINT" will be displayed on the screen center and at the bottom respectively.

(4) Use the cursor keys to move the cross cursor to the point to be magnified, and press the "ENT" key to complete the setting. The area around the cross cursor is displayed in 2x magnification, with blinking

"ZOOM" displayed in the upper right corner of the screen, indicating that a ZOOM display is shown.

(5) To cancel the ZOOM function, select OFF in step (1) or begin operation of range. Up/Down ENT Up/Down (Select ON) ENT Up/Down & Left/Right ENT ZOOM Setting

(Select OFF) ENT ---------------------------------------ZOOM canceled

(Move cross cursor)

(Select ZOOM)

Note 1) VRM2 and EBL2 do not follow the ZOOM function during they are floated. Note 2) Normal screen returns when you change the range scale. Note 3) ZOOM function is usable only in PPI screen mode. Note 4) ZOOM function is unusable in OFF-C. Note 5) The ZOOM center can be set any desired position within the set range. blinking "ZOOM"

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.25 HU ZOOM

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.25 HU SET ZOOM POINT 5.5.3.8 Increasing the sensitivity (S/L) The pulse length is automatically changed as you change the range scale. However, if you wish to in-

crease the sensitivity or to improve the picture definition, change the pulse length according to your need. If you select the short pulse (SHORT), the picture will become more definite, giving higher range discrimina-

tion. If you select the long pulse (LONG), the picture will be stretched towards range, providing better rec-

ognition of the targets shown, in contrast, the range discrimination will be sacrificed.

(1) Use the up-down cursor keys to select S/L from among the pull-down display items, and press the "ENT"

(2) Select Pulse length (SHORT or LONG) using the up-down cursor keys from the SHORT/LONG display beside the S/L item.

(3) The setting will be completed when the ENT key is pressed after the selection. S or L display

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key. Up/Down ENT

(Select SHORT)

(Select LONG) 59 ENT ------------------------- Set to short pulse ENT -------------------------- Set to long pulse 5.5.4 SETUP Menu Using this menu, you can select and set up the following picture presentation modes:

(1) PPI:

(2) SEMI3D/PPI:

(3) PPI/PPI:

(4) PPI/NAV:

(5) ALL PPI:

(6) ALL PPI/PPI:

(7) MOB:

A basic presentation mode composed of a complete PPI screen, with status displays on the left side, and an array of the soft keys on the right side of the screen. A small complete PPI on the left side and a semi-3D screen on the right side. Two small complete PPI screens on both sides, with the status display and the soft keys at the bottom and in the right side, respectively. A small PPI screen on the left side and the NAV information on the right side. The status display and an array of the soft keys are positioned at the bottom and in the right side of the screen, respectively. A single, largest PPI screen is shown. The top and the bottom parts of the PPI screen are truncated, while the right and left sides of PPI are fully displayed. Two larger PPI screens with truncated bottom. A Nav display, showing the position of MOB (Man Over Board) and present ships position in latitude and longitude coordinate.

<Common operations for the SETUP menu>

(Up to the point when "SETUP" menu is selected from the main menu) Press the "MENU" key and select "SETUP" from the displayed 4 main menus using the left-right cursor. (The contents of the selected MENU will appear on a pull-down display in accordance with the movement of the left-right cursor.) MENU Left/Right

(Select SETUP) Further explanation about the SETUP menu will be conducted on the assumption that this "common operation for the SETUP menu" has already been completed. 5.5.4.1 Selecting and setting up the screen mode (WINDOW)

(1) Use the up-down cursor keys to select WINDOW from among the pull-down display items, and press the

(2) Select a screen to be displayed with the up-down cursor keys from among the above 7 items shown beside

"ENT" key. the WINDOW item.

(3) The setting will be completed when you press the "ENT" key after the selection. SETUP AT MARK NAV ECHO SETUP WINDOW >

SEL WIN

PICTURE >

SYSTEM CHECK CUSTOM >

PPI SEMI3D / PPI PPI / PPI PPI / NAV ALL PPI ALL PPI/PPI MOB

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0.23NM 60 Up/Down

(select WINDOW) ENT Up/Down

(Select PPI)

(Select PPI+SEMI3D)

(Select PPI+PPI)

(Select PPI+NAV)

(Select ALL PPI)

(Select ALL PPI+PPI)

(Select MOB) ENT (a) ENT (b) ENT (c) ENT (d) ENT (e) ENT (f) ENT (g)

-Available functions on each screen mode SCREEN PPI PPI/SEMI3D PPI+PPI ALL PPI ALL PPI PPI MOB ITEM RANGE VRM1, EBL1 VRM2, EBL2 FL VRM2/EBL2 RINGS ON/OFF ZOOM, OFF CENT

///CSR HDG OFF STERN M NORTH M GAIN, STC, FTC TUNE ST GZ SEL WIN TXON/OFF X PPI/NAV X X X o o X X o X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X

o :

X :

The control available on active screen only. To use the function on another screen, switch the active screen using the SEL WIN function. Simultaneous control is possible for dual screen. The function is available only on PPI screen. The function not available.

- Screen modes and Operations

(a) PPI Screen All functions can be used on this screen. 75

.25 HU

(b) PPI/SEMI3D Screen 61

PPI Screen All controls, such as EBLs, VRMs are active on both screen. The functions such as ZOOM, OFF-C, FL EBL2, and FL VRM2 are not availabel in this mode. In the "SEMI3D" screen, ship's heading direction always stays on the center vertical line denoted 000. 75 .25 HU

(c) PPI/PPI Screen 280 320 000 040 080 PPI/SEMI3D Screen Each radar screen is updated one then the another on every two antenna scans, as shown in the following illustration. The unupdated picture remains frozen while another screen is in process. 75 . 25 HU S 24 6

.75 . 25 HU S 24 6

G 55/35 S 35/AT F 35/AT G 55/35 S 35/AT F 35/AT LEFT screen selected LEFT GAIN is active Left GAIN in reverse Note: When your ship navigates at high speed, use a single PPI screen mode to obtain faster picture update. Note: Functions including ZOOM, OFF-C, FL-EBL2, and FL-VRM2 are not available in this screen mode. Note: The functions including RANGE, GAIN, STC, FTC, and GZ can be used independently for each screen. The screen with reversed range display, as selected in "SEL WIN", is an active display, in which you can operate available functions. picture drawing(refreshed) Note: The cross cursor will be displayed only on a selected screen.

-Operation LEFT screen

RIGHT screen *******/--------/******/--------/******/--------/

displayed previous picture ( held) t a) Changing the RANGE scale in LEFT screen 1) When the RIGHT range scale indicator is reversed, use the "SEL WIN" function to make the LEFT screen to be active. 2) Press the RANGE UP or RANGE DOWN key to change the RANGE scale. 62 b) Adjusting GAIN of LEFT screen. 1) When the RIGHT range indicator is displayed reverse, use the "SEL WIN" function to make the LEFT screen to be active. 2) Press the "GAIN" key and the letters "G50" will be displayed in reverse, indicating the GAIN adjustment is available. 3) Adjust GAIN with the rotary control. Adjust STC and FTC in the same manner as GAIN. Note: While the adjustment of GAIN, STC, or FTC is in process, the radar picture update will be frozen. In approximately 5 seconds after the adjustment, the radar picture update will be resumed. c) Using VRM1 on LEFT screen. 1) When the RIGHT range indicator is displayed in reverse, change the active screen to LEFT screen with "SEL WIN" function. 2) Press the "VRM1" key and " " will be displayed in 1 0.00NM reverse, indicating the VRM1 is available. 3) Rotate the rotary control to measure the distance. 4) The same procedure applies to VRM2, EBL1, or EBL2. NOTE: To use the VRM1 on the RIGHT side screen, first switch the active display to RIGHT side, then press the VRM1 key.

(d) PPI/NAV Screen Note: The ZOOM, OFF-C, FL EBL2, and FL VRM2 are not available in this screen mode.

(e) ALL PPI Screen Note1: The status display such as RANGE, RINGS interval, and Display mode are displayed in the upper-left corner of the screen. Note2: When you press any key except "MENU", "RANGE UP/DOWN", "BRILL", and "POWER", the screen will return to the PPI mode. 75

. 25 HU S 63

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1 0.00NM G 55/35 S 35/AT F 35/AT Determining the distance with VRM1 on LEFT screen

.75 .25 HU S

NAV DISPLAY WAY P 123.4 6.8NM COURSE 2.38NM

XTE 267.3 T HDG 12.8KT SPD 20.8 C TEMP DEPTH 58.3M LAT/LON 34 08. 22N 138 02. 53E PPI/NAV screen

ALL PPI screen

(f) ALL PPI/PPI Screen Note1: The RANGE, RINGS interval, and Display mode are shown on top of the screen. Note2: When you press any key except "MENU", "RANGE UP/DOWN", "BRILL", and "POWER", the screen will return to PPI/PPI mode. Note3: Each radar picture is updated every two antenna scans. The right screen picture is frozen while the left screen is updated, and vice versa. When your ship navigates at high speed, use a single PPI screen to obtain faster picture update. 75 .25 HU S 6 1

ALL PPI PPI screen

(g) MOB Screen The MOB key has been pressed, the MOB position and ship's position are displayed. If not, MOB position will be displayed with bars( --.- ) Press MOB key to clear the MOB position and return to previous screen. Press ENT key to return previous screen with keeping the MOB position data. MAN OVERBOARD MOB POS 37 08. 42N 142 03. 33E SHIPS POS 37 12. 42N 142 04. 33E PRESS MOB KEY TO DATA CLEAR PRESS ENTER KEY TO RETURN 5.5.4.2 Switching screens on PPI/PPI screen ( SEL WIN ) Switching to the desired screen for activation on a PPI/PPI screen display. The "SEL WIN" function switches the activated screen to effect the operation such as, RANGE, GAIN, STC, FTC, VRM1/2, EBL1/2, and guard zone. The range indicator of activated screen is displayed in reverse. When "SEL WIN" is selected with the up-down cursor keys from among the pull- down display items and the "ENT" key is pressed, activated screen will be changed to the opposite screen. Up/Down

(select SEL WIN) ENT the opposite screen activated Range display on the active screen become a reverse display S

.5 .25

.75 .25 HU S

.5 .25 . 75 .25 64 effective for easy viewing . 5.5.4.3 Changing the color of screen (PICTURE) Changing the color of screen depending on weather and day / night environment conditions will be When "PICTURE" is selected with the up-down cursor keys from among the pull- down display items, select "DAY" and press "ENT" key to set to day display. Night display appears if "NIGHT"

is selected Up/Down

(select PICTURE) ENT Up/Down

(select DAY)

(select NIGHT) ENT ENT day display night display

. 75

. 25 HU 75

. 25 HU DAY display NIGHT display Blue Yellow White Black Green Red 5.5.4.4 Fault Diagnosis by Self Check (SYSTEM CHECK) Verifying the problem point by SYSTEM CHECK when, for example, some abnormality has occurred.

(1) Select SYSTEM CHECK from the pull-down display items using up-down cursor key, and press the ENT key. SYSTEM CHECK MEMORY CHECK

(2) The system check screen will appear. a) ROM --------------------------------------- > ROM b) RAM---------------------------------------- > RAM c) Backup memory----------------------- > BACKUP SIGNAL CHECK d) Transmit trigger ----------------------- > (1) TRIGGER e) Bearing pulse -------------------------- > (2) AZIMUTH f) Heading pulse -------------------------- > (3) HM g) +5Vvoltage(at video circuit) ----- > (4) +5V h) High voltage(at scanner) ---------- > (5) H.T. AT SU i) High voltage(at display) ------------- > (6) H.T. AT DU j) Magnetron current--------------------- > (7) MAG. CUR. k) Tuning voltage ------------------------- > (8) TUNE l) Motor power (6 kW/12 kW only)----- > (9) MOTOR m) Cumulative usage time --------> HOURMETER Operation time --------------------- > OPERATE Transmit time ---------------------- > TRANSMIT n) ROM version ------------------------> ROM VERSION o) Scanner type ------------------------> 4 KW OPEN OK OK OK OK OK OK OK OK OK OK OK OK 12.0H 10.3H V1.00 5.2V 253.2V 253.2V 2.1 40.0 V PRESS POWER KEY TO RETURN SYSTEM CHECK screen MENU ENT TGT N ACQ Indicates the cursor status. 1 2 3 4 5 6 7 RNG U RNG D BRILL AUTO GAIN STC FTC CONTROL KNOB POWER MOB p) Indicates the operation status of front-panel keys. Indicates the control knob status. 65 While watching the screen , check the following:

i) Whether all items are marked OK. (If any item is marked NG, the indicated location may be faulty.) ii) Press a front-panel key and see if the corresponding display on the screen is highlighted. iii) Turn the control knob and see if the lower-right indicator move to right or left.

(3) Press the POWER key to return to the previous screen a) ROM b) RAM c) Backup memory d) Transmit trigger e) Bearing pulse f) Heading pulse g) +5V voltage

(at video circuit) h) High voltage(at SU) i) High voltage(at DU) j) Magnetron current k) Tuning voltage l) Motor m) Cumulative usage time n) ROM version o) Scanner type p) Front-panel keys OPERATE TRANSMIT Indicates the ROM status. Indicates the RAM status. Indicates the backup memory status. Indicates the signal line status for the trigger signal sent from the scanner unit. Indicates the signal line status for the bearing signal sent fron the scanner unit. Indicates the signal line status for the bow signal sent from the scanner unit. Indicates the reference voltage status of the video circuit and its voltage value.

(normally about 5 V) Indicates the status of the high voltage supplied from the display unit to the scanner unit and its voltage value (normally about 250 V) at scanner unit. Indicates the status of the high voltage supplied from the display unit to the scanner unit and its voltag value (normally about 250 V) at display unit. Indicates the status of the anode current flowing in the magnetron and its current value. Indicates the status of the voltage used for tunning and its voltage value. Indicates the status of the scanner motor power (normally about 40 V) Indicates the cumulative time your radar is used.

: Duration of time during which the power supply is turned on.

: Duration of time transmitting. Indicates the ROM software version. Indicates the Scanner type As you press any front-panel key when the SYSTEM CHECK screen is on, the corresponding key is highlighted on the screen by displaying it in reverse video. ex. 4 KW OPEN 66 5.5.4.5 Changing the content of the setting (CUSTOM) Note) The items included in the CUSTOM menu are the settings and adjustments to be carried out during installation. These items are not required during normal operations.

-Common operations for CUSTOM Use the up-down cursor keys to select CUSTOM after the common operations for the SETUP menu, and press the "ENT" key. MENU Left/Right

(Select SETUP) Common operation for SETUP Up/Down

(Select CUSTOM) ENT When the above operations are completed, the following 4 items will be displayed beside the CUSTOM item, namely "KEY ASSIGN", "PRESET1", "PRESET2" and "ADJUST". Further explanation concerning the CUSTOM menu items will be made assuming that the above "common operations for CUSTOM" have already been conducted. 75

.25 HU S SETUP MARK

0.23NM NAV ECHO SETUP AT

WINDOW

SEL WIN PICTURE

SYSTEM CHECK CUSTOM

CUSTOM KEY ASSIGN PRESET1 PRESET2 NMEA PRESET ADJUST >

ADJUST >

ATA PRESET 67 5.5.4.5.1 Changing the settings of the soft keys (KEY ASSIGN) To change the function settings that have been assigned to soft keys, numbered 1 to 7, use the fol-

lowing procedures.

(1) Screen display for the setting PPI DEL EBL2 EBL1 DATA o ST VRM2 VRM1 o PPI PPI/3D TRACK TRACK PPI/PPI o S / L FL EBL2 o EBL2 ALL DEL FL VRM2 o VRM2 o VRM1 o ///CSR o ZOOM VAR RNG o RINGS o PPI/3D o TRACK o FL EBL2 o FL VRM2 o PICTURE o HDG OFF o VAR RNG ECHO o TUNE SETUP o SEL WIN KEY ASSIGNMENT MARK o EBL1 NAV Select KEY ASSIGN from the CUSTOM items and press the "ENT" key. The following screen will be shown. (See chart below) Mark is displayed when the function is set to a key. Operation panel Keys 1 - 7 Move with up-down cursor Key Groups Move with right-left cursor Soft Key Setting Screen o OFF-C o SLEEP o +MK LINE o ALL PPI2 o ALL DEL o TARGET o PPI/NAV o ALL PPI o PPI/PPI o MODE PICTURE ALL PPI2 SEL WIN o NEXT o DATA TARGET PPI/NAV ALL PPI o DEL OFF-C ZOOM o GZ NEXT NEXT NEXT NEXT SET1 SET2 SET3 SET4 ATA GZ 1 2 3 4 5 6 7

(2) Selecting functions

(3) Key settings Reverse the items to be set using the up-down cursor keys. (The items become reverse in accordance with the moving cursor.)

(3)-1 Allocating a new function to a soft key (Example 1) Upon reversing the item with up or down key, press the key to be allocated. The selected item will be displayed beside the key, which indicates that the setting has been completed.

(3)-2 Changing the function of a key with an preset function (Example 2) When the allocated key is pressed, its function will be altered to the one selected in (1) above and the previous function will be canceled. The current setting item numbers as SET1-4 are always displayed below the letters NEXT. In order to switch the settings SET1-4, use the right-left cursor keys. NOTE: Double settings, setting 1 item for more than 1 key, are possible. When you wish to assign the functions for more than 1 key, repeat the operations (3)-1 to (3)-2.

(Example 3) 68

(4) To complete the settings Example of an operation After you have finished the settings, press the ENT key to exit from KEY ASSIGNMENT.

(The process up to the selection of KEY ASSIGNMENT from the SETUP menu is omitted. Only the process after the above chart will be described.) Example 1) Changing the OFF-C function, allocated to key 6 in setting 2, to the HDG OFF function. Up/Down Select HDG OFF 6 ENT ---------------Key 6 altered from The display beside key 6 changes to HDG OFF Exit from KEY ASSIGNMENT OFF-C to HDG OFF Example 2) Re-allocate SEL WIN to key 1 in setting 2. Left/Right From SET1 to SET2 Up/Down Select SEL WIN 1 SEL WIN is displayed beside key 1. ENT Key 1 in setting 2 is altered to SEL WIN. Exit from KEY ASSIGNMENT Example 3) Changing the ST function, allocated to key 1 in setting 1, to HDG OFF and then reset the key 1 in setting 2 as SEL WIN. 6 Up/Down Select HDG OFF The display beside key 6 changes to HDG OFF Key 6 altered from ST to HDG OFF Left/Right From SET1 to SET2 Up/Down Select SEL WIN ENT 1 SEL WIN is displayed Exit fromis altered to SEL WIN beside key 1. KEY ASSIGNMENT Key 69 5.5.4.5.2 Changing the content of settings 1(PRESET1)

(1) Select PRESET1 from CUSTOM items and then press the "ENT" key to show the PRESET1 screen

(See chart below).

(2) Select the item with up or down key and then contents with left or right key. The selected item will be enclosed by a rectangular and the contents will appear in reversed display.

(a) Repeat the above procedures for the rest of settings. PRESET1 a) Heading Flash b) Stern Mark c) North Mark d) ST'BY screen e) Buzzer Volume f) VRM Unit g) Water temperature h) Depth Unit i) EBL Mode j) WayPoint Mode k) Heading Input l) Heading Type m) Cursor position n) TX Pulse

(b) ON _OFF_ ON _OFF_ ON _OFF_ _NAVI_ NOR OFF LOW _HIGH_ _NM_ KM SM

C_ F _M_ FM _REL_ TRUE MAG _TRUE_ MAG _NMEA_ SIN/COS 12BIT 10BIT TRUE _MAG_ _DIST / BRG_ LAT / LON PRESS ENTER KEY TO RETURN

(3) After the setting is completed, exit from the PRESET1 screen with the "ENT" key. HM FLASH STERN M NORTH M STBY BUZ VOL RM UNIT TEMP DEPTH EBL BRG WP BRG HEAD INPUT HEAD

+MK MODE P TABLE P TABLE _1_ SHORT LONG

.75 0 1 1.5 0 1 0 _1_ 2

.5 0 0 FT Note) The contents will be displayed in (b) together with the numbers selected in P TABLE.

(a) 3 1 2 6 1 2 a) HM Flash ON/OFF b) Stern Mark ON/OFF c) North Mark ON/OFF Mark. d) ST'BY screen e) Buzzer Volume f) VRM Unit To Set up HM presentation mode, either FLASH or CONTINUOS. ON: Heading Mark flashes every time the antenna is directed to ships bow. OFF: Heading Marker is continuously shown. To turn ON or OFF the Stern Mark. To turn ON or OFF the North Heading Marker

.75

.25 HU To set up the stand-by screen mode as follows:

NAVI: Navigation Data screen NOR: Normal screen To set up audio sound level of electronic buzzer To select VRM distance unit NM: Nautical mile Stern Marker 70 g) Water temperature h) Depth Unit i) EBL Mode j) WayPoint Mode k) Heading Source l) Heading Type F: Fahrenheit KM: Kilometer SM: Statute mile To select water temperature unit C: Celsius To select Depth unit M: Meter FT: Feet FM: Fathom To select Mode of EBL REL: Relative bearing from HM TRUE: True bearing MAG: Magnetic bearing To select WayPoint bearing mode TRUE: True bearing MAG: Magnetic bearing To select the source of bearing information. NMEA Heading Information Type setting MAG: Magnetic bearing TRUE: True bearing SIN/COS: Compass Data with SIN/COS signal 12BIT: Compass Data with 12bits serial signal 10BIT: Compass Data with 10bits serial signal m) Cross cursor position display Mode n) Transmitting pulse width Note: P TABLE DIST/BRG: Range and Bearing indication LAT/LON: Latitude and Longitude indication Pulse length setting for Range Scale (Note: ) PULSE TYPE <=0.25 NM SHORT LONG 0 0 0.5 NM 0.75 NM 1.5NM 0 0 0 0 0 1 PULSE TYPE <=0.25 NM 0.5 NM 0.75 NM 1.5NM SHORT LONG 0 0 0 0 0 1 0 1 3 NM 0 1 3 NM 1 2 P TABLE 0 P TABLE 1 PULSE TYPE <=0.25 NM 0.5 NM SHORT LONG 0 0 0 1 0.75 NM 1.5NM 0 1 1 2 3 NM 1 2 0 : 0.08 uS, 1 : 0.3 uS, 2 : 0.6 uS, 3 : 1.0 uS P TABLE 2 Note: Pulse width 6 NM 1 2 6 NM 1 2 6 NM 2 3

>=12 NM 3 3

>=12 NM 3 3

>=12 NM 3 3 71 5.5.4.5.3 Changing the content of settings 2 (PRESET2) Refer to the section, Changing the content of setting 1(PRESET1). a) Guard Zone Level b) Guard Zone Mode c) Hold d) Display Unit Mode e) External Buzzer f) Bearing pulse/rot(IN) g) Bearing pulse/rot(OUT) h) Built-in Simulator i) Interference Rejection j) Ship's Speed k) Indication Language l) Scan speed m) Color a) Guard Zone Level b) Guard Zone Mode c) Hold d) Display Unit Mode e) External Buzzer f) Bearing pulse/rot.(IN) g) Bearing pulse/rot.(OUT) h) Built-in simulator i) Interference Rejection PRESET2 1 2 3 4 5 6 7 I N OUT ON OFF RDR MONI OFF 1080 1080 ON OFF OFF IR2 NMEA MANU 0.0KT CONT 1024 1024 NAVI INT 2048 2048 IR1 CHI GRE POR DAN ITA RUS ENG JPN SPA STD HIGH MONO MULTI 4096 4096 360 360 LOG FRE KOR SWE 200P GER NOR TUR GZ LVL GZ MODE HOLD DISPLAY EXT BUZ IN P /R OUT P/R DEMO IR SPD SET LANGUAGE SCAN SPEED COLOR PRESS ENTER KEY TO RETURN 1: High Sensitivity, .. 7: Large Target Only RDR: Radar mode (normal) MONI: Monitor mode (for slave display use) NAV: Navigation mode (for DATA indicator use) Guard Zone Detection Level setting Guard Zone Detection Mode setting IN: To detect entry of a target OUT: To detect leaving of a target To hold the radar picture presentation for 30 seconds after switching to ST'BY The EBL and VRM can be used in HOLD state.(Note1: ) Display Unit Operation Mode setting External Buzzer control setting Change the setting when connected to the other type of radar Change the setting when connected to the other type of radar To display stored radar picture for presentaion purposes. Reject the interference from other radar transmissions OFF: Buzzer off CONT: Continuous tone INT: Intermittent tone OFF: IR OFF IR1: ON level 1 IR2: ON level 2 72 j) Ship's Speed Own ship's speed setting NMEA: The speed data fed from an external speed sencor in NMEA sentence form. MANU: MANUAL speed input set by an operator using LOG:

the rotary control. The speed is calculated by log pulse. Set the pulse rate with the rotary control. k) On-screen Language l) Scan Speed m) Color Note 1: HOLD function Standard STD:

HIGH: High speed To select the language used for MENU and SOFT KEY ( Note2: ) Scanning speed setting

( The setting can be changed in stand-by mode only. ) Video presentation switch MONO: Yellow or Green monochrome MULTI: Red to Green multi-color POWER = POWER key to press The HOLD function is only available in standby mode that momentarily freezes the radar picture. In this mode, you can use VRMs and EBLs and, as far as the operation continues the picture stays frozen. If you leave these controls, the timer starts to count and after 30 seconds the screen will be put back automatically to normal transmitting mode. Setting HOLD POWER

(Operation)

(Under Tx)^<-------Under HOLD mode--->^<-----------STBY DISPLAY--------------------------------

EBL,VRM operation:X seconds NOTE) EBL and VRM function is usable in HOLD state. Turn to transmission off X + 30seconds HOLD is displayed and blinks.

(Time used)

Setting HOLD Note 2: 15 languages CHI

: Chinese DAN : Danish ENG : English

: French FRE

: German GER GRE

: Greek

: Italian ITA JPN

: Japanese Tx OFF X + 30sec. STBY HOLD EBLs and VRMs can be used to locate a target. KOR : Korean NOR : Norwegian POR

: Portuguese

: Russian RUS SPA

: Spanish SWE : Swedish TUR

: Turkish 73 5.5.4.5.4 Changing the content of priority for NMEA input(NMEA PRESET)

(1) (1) When NMEA PRESET is selected from CUSTOM items and the "ENT" key is pressed, the NMEA PRESET screen (See chart below) appears.

(2) (2) Select items with up-down cursor keys and contents of NMEA formatter with left-right cursor keys.

(3) (3) Change the priority of NMEA formatter with encoder knob.

(4) (4) The formatter in the left position has a higher priority than that of the right position. Repeat this operation when multiple settings are necessary. a)Lat/Lon b) Heading c) Ship's speed d) Way point e)Depth of water f) Cross track error L/L HEAD SPEED WAY POINT DEPTH XTE NMEA PRESET GGA>GLL>RMA>RMC HDT>HDG>HDM>HSC>VHW>VTG VHW>VTG>RMA>RMC BEC>BWC>BWR>BER>BPI>RMB DBT>DPT RMB>XTE SET WITH CONTROL KNOB PRESS ENTER KEY TO RETURN

(5) After the setting is completed, exit from the NMEA PRESET screen with the "ENT" key. To suspend the changes press the ENT key. All newly set items will be cancelled. 5.5.4.5.5 Changing the content of settings (ADJUST) The items in the ADJUST menu are used for setting up the equipment at installation, retrofitting, etc. where various functional parameters need to be set up or reset. Once set up, resetting may be not necessary.

(1) Adjusting distance (TX TIME DELAY ADJ) This adjustment is necessary to set up the distance to targets to within the specified accuracy. Before proceeding to adjustment, set respective controls as follows:

(5) First, set the range scale to 0.25 NM, FTC to minimum, and GAIN to optimum level. Then adjust STC to minimize the center spot ( a split of transmission energy shown like a sun) to a single dot.

(2) Adjusting the distance.

(2)-1 Select ADJUST by "common operations for CUSTOM". Use the up or down cursor key to select TIMING ADJ from the pull-down menu and press the "ENT" key.

(2)-2 Find a straight linear target such as a jetty, bridge, etc.

(2)-3 Turn the rotary control either CW or CCW to obtain a linear echo shown like the one in Figure b).

(2)-4 Press the "ENT" key to exit from this menu. ENT Up/Down To select TIMIG ADJ Delay Control knob Do Timing adjustment ENT Fix TX Timing a) Pushing echo

(TX delay too much) b) Properly set c) Pulling echo

(TX delay too short) 74 direction.

(2) Adjusting angle (HEAD ADJ) The purpose of this adjustment is to exactly orient the Heading Mark on the screen with the ships bow Note: Heading offset value for open antenna is different from that of a radome antenna.

(1) In preparation for adjusting the angle, the following adjustments are to be conducted.

(1)-1 Find one small target within a 0.5 to 1.5 NM range which, lying in the bow direction, can be visually observed and is clearly recognized on the radar screen.

(1)-2 Measure the bearing of this target from the bow direction using a compass. Let it be q c.

(1)-3 Measure the bearing of the above target in head up (HU) mode using EBL. Let it be q r.

(1)-4 Calculate the following:

q c - q r 360 - ( q r - q c ) The obtained value is the azimuth error of your radar at installation. If q c and q r are equal, the ad-

justment described below is unnecessary.

: if q c is greater than q r

: if q r is greater than q c

(2) Adjustment procedure

(2)-1 Select ADJUST by "common operations for CUSTOM" and select HEAD ADJ from among the pull-down menu using the up or down cursor key. Press the "ENT" key to fix the HEAD ADJ item.

(2)-2 Rotate the rotary control to set the value calculated.

(2)-3 When the adjustment is finished, press the "ENT" key to exit from this menu. Up/Down Select HEAD ADJ. ENT Control knob Set a value to . ENT 3 1 HU HEAD DIRECTION ADJUSTMENT ADJUST WITH CONTROL KNOB PRESS ENTER KEY TO RETURN _358.8_ HEADING Adjustment

(3) Adjusting receiver tuning (TUNING CAL) Adjust with Control knob Normally you do not need to make this adjustment. This adjustment may be necessary to ensure normal automatic tuning operation. However, if the echo sensitivity is poor or there is any symptom suggesting improper tuning, you may need to re-adjust the tuning by the following procedures.

(1) Choose several stable video images in the 3 NM range or more.

(2) Select ADJUST by "common operations for CUSTOM", and select TUNING CAL using the up or down cursor key from the pull-down menu. Press the "ENT" key to fix the selection.

(3) The tuning adjustment screen (TUNING CALIBRATION) will appear, and then select AUTO with up-down cursor key. 75

(4) Rotate the rotary control either CW or CCW to obtain the largest echo presentation on the screen.

(5) Select MANUAL with the down cursor key.

(6) Rotate the rotary control again to obtain the largest echo presentation.

(7) When the adjustment is finished, press the "ENT" key to exit from the TUNING CALIBRATION screen. Operate of (3) to (7) Up/Down Select AUTO Control knob Adjust tuning Up/Down Control knob ENT Select MANU Adjust tuning Echo remain. 3 1 HU Adjust with control knob Select with up-down cursor key

(4) Adjusting the antenna height (ANTENNA) TUNING CALIBRATION READ OPERATION MANUAL SELECT ITEM WITH KEY TUNE WITH CONTROL KNOB PRESS ENTER KEY TO MEMORY AUTO MANUAL 31 36 Depending on the position at which the antenna is installed, the STC level may need to changed. Use the following procedures to set up. To obtain the best result, we suggest consulting your local SIMRAD dealer for proper setting.

(1) Select ADJUST by "common operations for CUSTOM", and then select ANTENNA from the pull-down menu using up or down cursor key. Press the "ENT" key to fix the selection.

(2) The adjustment screen will be shown. Set an appropriate value using the rotary control to choose the value from 1 to 9.

(3) Press the "ENT" key to exit from this menu. Up/Down Select ANTENNA ENT Control knob Choose value ENT Complete 3 1 HU Adjust with Control knob STC CURVE ADJUSTMENT ADJUST WITH CONTROL KNOB PRESS ENTER KEY TO MEMORY STC CURVE _5_ ANTENNA Adjustment 76

(5) Setting the receiver GAIN (GAIN) Using this function, you can set up the automatic and manual gain level. As widely accepted conven-

tion, the receiver gain should be set to the level that the noise speckles is slightly shown on the screen. There are two modes of setting for AUTO and MANUAL, to each mode you can independently set the GAIN level. Use the following procedure to set up. In MANUAL mode, you can preset the MANUAL GAIN to current MANUAL gain level as standard. When you enter "G60" as gain level, for instance, "G60" will be preset as standard MANUAL level.

(1) Select ADJUST by "common operations for CUSTOM" and select GAIN from the pull-down menu items. Press the "ENT" key to fix the selection.

(6) Turn the rotary control to set the desired level from 1 to 30.

(7) Press the "ENT" key to fix the setting. Up/Down Select GAIN ENT

(6) Setting the STC level (STC) Control knob Choose value ENT Complete Using this function, you can set up the STC level to your needs. Proper STC setting should be such that small targets such as buoy and small craft are clearly shown while slight sea clutter appears on the screen. In AUTO mode, you can preset the AUTO STC level and AUTO FTC level as well. When entered at HARBOR

(HBR) mode, you can preset the HARBOR STC level. In MANUAL mode, you can preset the best suited STC level as standard MANUAL STC level.

(1) Select ADJUST by "common operations for CUSTOM", and select STC from the pull-down menu. Press the "ENT" key to fix the selection.

(2) The set up screen will be displayed. Rotate the rotary control to obtain an appropriate STC level on the screen. The STC digital value will change from 1 to 16.

(3) Press the "ENT" key to exit from the adjustment screen. Up/Down Select STC ENT Control knob Choose value ENT Complete 5.5.4.5.6 ATA preset (ATA PRESET) Before using the ATA function, the settings described below are necessary. Note: Use the ATA function in either the PPI or ALL PPI mode. Even if other modes are used, the ATA still continues tracking though the symbols and data are not displayed on the radar. Select the ATA PRESET items from the SET UP/CUSTOM menu. The menu contents are as follows.

(1) When ATA PRESET is selected from CUSTOM items and the "ENT" key is pressed, the ATA PRESET screen (See chart below) appears.

(2) Select items with up-down cursor keys and change the value of each item with encoder knob.

(3) Change the item of VECT(vector) MODE with right-left cursor keys.

(4) Change the item of ATA with right-left cursor keys. Check that ON in the ATA items is highlighted. If OFF is highlighted (selected), the ATA does not function.

* Unless the ATA board is installed properly, the ATA PRESET items are not displayed on the above SET UP/CUSTOM menu.

CPA SET TCPA SET VECT SET VECT MODE REL ATA ON

0 MIN 6 MIN TRUE OFF 0.0 NM 77 5.6.2 Operating Instructions 0.5 to 40 NM 2,000 Hz maximum 1,080 or 2,048 pulses / rev (Switched automatically) See Note. Manual A target is acquired manually by a cross cursor driven by the Pointing Device. Automatic 10 targets maximum Target Number, distance, bearing, speed, course, CPA and TCPA Collision alarm, activated when a target enters the preset CPA and TCPA ranges. Lost alarm, activated when a target can no longer be tracked. Predicted point and target number Predicted motion of a target as a result of own ship's direction and speed input. 5.6.1 ATA Board Specifications Acquisition Tracking Number of tracked targets ATA data output Alarm Symbols:

Display Vector :

Display modes: Relative (REL)/True (TRUE) Tracking range PRF Bearing signal 5.6 ATA Operation

(1)

(2)

(3)

(4)

(5)

(6)

(7)

(8)

(9) Note: The ATA board does not accept bearing signals other than specified above. In case the ATA board is used in the monitor mode display, make sure an incoming bearing pulse rate agrees with that specified in this specification. The ATA detects a target from radar image signals and measures the distance from the target and its bearing automatically. By calculating changes in the measurement results to predict the target movement, the ATA tracks the target automatically. The ATA calculates the CPA (closest point of approach) and the TCPA (time required for the ship to reach the CPA) from the movement of the target toward the ship. Then comparing them to those preset, it generates a collision alarm if both values are smaller than the preset ones. The target bearings are calculated by (1) bearing of the target toward the ship and (2) bearing of the ship's heading marker. Therefore, the accuracy of the data on the heading marker's bearing affects tracking per-

formance. Tracking may become impossible if the compass is inaccurate and especially when the ship is yawing or changing the course. These cases, however, are not caused by a malfunction of ATA. Before using the ATA function, the settings described below are necessary. Note: Use the ATA function in either the PPI or ALL PPI mode. Even if other modes are used, the ATA still continues tracking though the symbols and data are not displayed on the radar.

(1) Switching the ATA function ON/OFF The menu contents are as follows.

CPA SET TCPA SET VECT SET VECT MODE REL ATA ON

Check that ON in the ATA items is highlighted. If OFF is highlighted (selected), the ATA does not function.

* Unless the ATA board is installed properly, the ATA PRESET items are not displayed on the above SET UP/CUSTOM menu. Select the ATA PRESET items from the SET UP/CUSTOM menu. 0.0 NM 0 MIN 6 MIN 5.6.2.1 Outline 5.6.2.2 Setting TRUE OFF 78 Tracking the target Canceling target tracking 5.6.2.3 Operation Acquisition of a target

(1) Firstly, select the target to track. Place the cursor on the target image and acquire it by using the ACQ (ac-

quisition) function. Press the ACQ key. When operating from the MENU, place the cursor on NAVI/ACQ and press the ENT key. Select the target when it is displayed clearly and no other targets are displayed around it. If other targets are displayed around it, the ATA may track a different one. All targets acquired by ATA are identified by the numbers, from 0 to 9. These figures will be shown in the upper right window on the screen. A vacant column shown like "-" indicates no target being acquired. Before starting selection, use the TGT NUM (target number) function so that "-" is highlighted. The TGT NUM function is used to change the target numbers. The target number will not change auto-

matically unless this function is used. Press the TGT NUM key. When operating from the MENU, place the cursor on NAV/TGT NUM and press the ENT key. When ATA starts acquisition, a symbol appears at the cursor position on the screen, and the target number is shown on the lower right side of the symbol.

(2) When the operator acquired the target by the procedure (1), ATA automatically detects the target to start automatic tracking. As soon as stable tracking is established, a vector will be developed on the screen. The target tracking is not relevant to the range scale in use, i.e. the tracking continues even if the range scale is changed beyond the viewable ranges for the target. Note: A tracked small target may be lost when the range scale is changed to shorter pulse ranges, causing the target signal level to be decreased. This may lead to a tracking failure on the target that will become a lost target.

(3) To cancel tracking, use the DEL (delete) function. The number highlighted on the upper right of the screen will disappear. If ALL DEL (delete all) is selected, the ATA will cancel tracking of all targets. Press the soft key if the DEL function has been set. When operating from the MENU, place the cursor on NAVI/DEL or NAVI/ALL DEL and press the ENT key. When the radar is set to the SY'BY mode, the ATA will cancel tracking of all targets.

(4) When necessary, numerical data of the current tracking target can be displayed in the data display window. Use the DATA function to display the numerical data of the number highlighted on the upper right corner of the screen. Press the soft key if the DATA function has been set. When operating from the MENU, place the cursor on NAVI/DATA and press the ENT key. Items to be displayed are as follows. Target number: TGT NO.x Vector time:

Vector mode:

Target data:

State:

Example:

TIME xx MIN. Setting time to display vector length. (Speed x Time=vector length) TRUE or REL Display mode of vector and data. TRUE and REL represent true and relative speeds, respectively. BRG (bearing), DIST (distance), CRS (course), SPD (speed), CPA (closest point of approach) and TCPA (time required for the ship to reach the CPA) A collision or lost alarm will appear according to the state of the target. The number of the target currently displayed. CPA 12.3NM TCPA 12.3MIN ALM LOST TIME xxMIN 123.4DEG 12.3NM 234.5DEG 10.0KT Data display BRG DIST TGT No.x CRS SPD TRUE

79 ATA indications

(5) In the PPI and ALL PPI modes, symbols and data are displayed. In other modes, target tracking is still continued though the ATA display and operation are disabled. The symbols are as follows:

Acquired target Tracked target Target with data display Lost target Dangerous target under automatic tracking Ship's speed setting 5.6.2.4 Interface Data output NMEA MANU 0.0 KT LOG 200P

$RATTM,01,0.42,292.1,T,4.99,0.0,T,0.4,0.0,N,,T,,,M*2A

(6) The ship's speed can be set in the SPD SET item in the SET UP/CUSTOM/PRESET2 menu. Other than the standard NMEA interface, manual setting and log pulse input can also be selected. In the case of manual setting, input the ship's actual speed. Menu indication is as follows:

SPD SET

(1) The ATA data output is ready at the optional connector terminal on the rear of the display unit. Pin No.32 is the NMEA_OUT signal terminal which outputs signals conforming to the NMEA0183. This output terminal is used for the TARGET function (to output L/L of the cursor position), the MOB function (to output L/L of the ship's position) and the ATA data output function. The data format is as follows:

Description

$RA TTM 01 0.42 292.1 Bearing of the target ( ) T 4.99 0.0 T 0.4 0.0 N T M

*2A

(2) The log signal can be used for ship speed input by inputting it to the optional connector terminal on the rear of the display unit. Pin No.32 is the log signal terminal and it is driven between itself and pin No.14 (GND) using contact signals such as a relay. 400, 200, 150 or 100 pulses/NM signal can be selected. Indicates the true bearing. Speed (knots) Course ( ) Indicates the true speed and course, while R indicates relative movement. Indicates the CPA (closest point of approach) Time required for the ship to reach the CPA (min.) Indicates the unit of distance used: NM Indicates tracking condition: Q: unstable, T: tracking, L: lost Indicates that acquisition is carried out manually. Sum checking Unit identification code (radar) Formatter Target number Distance to the target Log signal input 80

 

 

CHAPTER 6. MAINTENANCE AND INSPECTION A qualified engineer should carry out most of maintenance work on this radar. If your radar set has any problem, contact your local dealer for repair.

! WARNING Very High Voltage is present inside the radar set. Do not attempt to open the display rear cover or dis-

assemble internal module. When you open the ra-

dome, make sure to turn off the main power supply at switch board. Even if the radar is switched OFF, the radar set is still powered with very small amount of current. The following table shows the maintenance by user. Please check each item periodically. Tab. 6-1 Maintenance Inspection Interval 3-6 months 6-12 months Inspection Item Rust and looseness in scanner unit Display screen of LCD display Grease application to antenna drive gear Check for contact of connectors Method of Inspection and Maintenance Check if the scanners fitting bolts are corroded. Clean the filter plate and LCD screen surfaces with a soft and wet cloth. Avoid organic solvent. Apply an even coating of grease* to the entire surface of the antenna drive gear with a spatula or brush. Check whether connectors are properly connected. If not, redo connection or make good contact by using a contact restoring chemical agent or by polishing or replace with a new one if necessary. Check the length of brushes. If the length is less than 6mm, replace both brushes with new one. Antenna motor brush(RA52/53/54) The radar uses the life-limited parts as listed below that require periodic replacement. Articles of consumption

(1) Magnetron This part is used in the scanner unit. If distant echo images have become weak, the magnetron probably may have degraded. In such a case, you need to replace this item. Consult your local service agent for replacement. Practical life to replacement: 3000hour(typ.) (500hour guaranteed by the magnetron manufacturer)

(2) LCD back-light This part used in the display unit. If the display screen is extremely dark and its illumi-

nation cannot be corrected by adjusting the screen brightness, the LCD backlighting lamp may be faulty or may have burnt out. In such a case, you need to replace it. Consult your local agent for replacement. Period of the replacement: 15000 hours (typ.) (1000 hours at 0 C) 81 The fuse is in-line type, built in to the power supply cable. If the fuse appears to be blown, check the fuse. If blown, the procedure shown in Fig.6-2. following replace it Power supply cable To display unit Push Wire(White) Turn counterclockwise and pull Spring Fuse Replace new fuse Push and turn clockwise

(3) Fuse Note: Before maintenance of scanner, you can hang a radome (upper) using cord through hole as fol-

Fig. 6-2 Method for replacing fuse lows. A Cord A: Top view Hole Fixing screw Radome(bottom) Radome(Upper) Cord Fig. 6-3 Method for replacing fuse 82 CHAPTER 7. TROUBLESHOOTING This chapter explains how to identify trouble locations when the radar is found faulty and how to request repair. If there is any trouble, press and hold the POWER key for 3 seconds to power off. Then turn on the equipment again and wait 10 sec at least. If you find the radar is faulty, check it by the following procedure described below. If you find as a result of inspection that the fault cannot be repaired on board, contact your distributor for repair. For faster service, please let us know about followings when you request repair:

(1) Ships name, place of anchorage, allowable repair period or time

(2) Radar type (This radar is RA53 or RA54.)

(3) Manufacturing number (indicated on the back of the display unit)

(4) Fault symptoms and inspection results

! WARNING There are high voltage circuits inside of this radar. Do not attempt to open the rear cover of display unit or disassemble internal parts. When you open the radome for installation, power must be off. Even if power switch is OFF, this radar is still sup-

plied with power inside. This chapter explains how to identify trouble locations when the radar is found faulty and how to request repair. 7.1 Fault Diagnosis by Self-check The radar incorporates a failure diagnostic function (called "self-check") to diagnose faults by the Refer to "5.5.4.4 Fault Diagnosis by Self Check (SYSTEM CHECK)" and check whether there is equipment itself. any fault in your radar. 83 7.2 Inspecting Each Part When you have finished self-check, inspect each part of the radar according to Tab.7-1. Tab. 7-1 Troubleshooting Symptom Cause Corrective action

(1) Radar cannot be powered on. Power cable is disconnected.

(2) Nothing is displayed al-

though radar is powered on.

(3) Screen is dark.

(4) Video does not appear al-

though characters are displayed.

(5) Echo image on screen differs from actual image.

(6) Echo images are blurred.

(7) Too much noise. Power supply voltage is outside of specified value Fuse in power cable is blown. Brightness is improperly ad-

justed. LCD is faulty. Brightness is improperly ad-

justed. Backlight is faulty. Interconnecting cable is out of place. Ships heading is incorrectly set. Set ships heading correctly. Connect power cable correctly. Use Specified power supply.

(See Section 3.2) Replace fuse. (See Chapter 6) Use BRIL key to adjust. (See Section 5.3.) Contact your dealer. Use BRIL key to adjust. (See Section 5.3. Contact your dealer. Connect interconnecting cable correctly. Timing adjustment is incorrectly set. GAIN, STC, or FTC is improp-

erly set. Magnetron has degraded. Radar is not tuned correctly Radar set is not grounded to earth.

(See Section 5.5.4.5.4) Set timing adjustment correctly.

(See Section 5.5.4.5.4) Adjust. (See Section 5.3.6 to 5.3.8.) Contact your dealer. Adjust TUNE. (See Section 5.5.3.4) Connect grounding wire. (See Section 3.4 to 3.6.) Contact your dealer. Contact your dealer.

(8) No response to key pressing. Panel keys are not in contact. Power supply circuit is faulty. 84 CHAPTER 8. PRODUCT SPECIFICATIONS Power supply voltage:

Power consumption:

8.1 General Type:

Power supply voltage and power consumption Distance range:

Distance resolution: Within 25 m Distance accuracy:

Minimum detecting distance:

Bearing resolution:

Bearing accuracy:

Warm-up time:

Environment conditions Humidity:

Vibration:

Wind resistance:

Waterproof standard:

Interconnecting cable:

Noise:

Ambient temperature range 85 RA53 and RA54 24Vdc (nominal)

(10.2 to 41.6 Vdc) 100 W or less (RA53) 110 W or less (RA54)

(RA53) 0.125 to 64 NM, 11 ranges 0.125 to 72 NM, 11 ranges

(Continual variable range also possible)

(RA54) Better than 0.9% of maximum range of the scale in use, or 8m, whichever is the greater Within 25 m Within 2.5 (w/4 ft) Within 1.8 (w/6 ft) 1 or less 2 minutes

(S/U):

(D/U):

-25 to 55 C 0 to 55 C 93% RH at +40 C 3 mm( 300 to 500 rpm) 1.2 mm(500 to 1500 rpm) 0.3 mm(1500 to 3000 rpm) 14.7m/s2(1.5G) Resonance test 3 mm(300 to 500 rpm)

(S/U):

(D/U):

(D/U):

(S/U):

(D/U):

(S/U):

100 knots (max.) IPX-5 IPX-6 100 m in max. 65 dB or less 70 dB or less 0.75 mm(500 to 1500 rpm) 0.2 mm(1500 to 3000 rpm) 8.2 Scanner Unit Type:

Antenna type:

Antenna characteristics Beam width (horizontal):

Beam width (vertical):

Pulse width and peak power output:

RB717A (RA53) RB718A (RA54) Slotted-array 1.8 1.2 0.2 (with 4ft antenna) 0.2 (with 6ft antenna) 22 (typ.) RA54 RA53 Pulse width (sec) Peak Power (kW) Pulse width (sec) Peak Power (kW) 12 (-50% to +20%) 0.08 12 (-50% to +20%) 0.3 12 (-50% to +20%) 0.6 1.0 12 (-50% to +20%) 6 (-50% to +20%) 0.08 6 (-50% to +20%) 0.3 6 (-50% to +20%) 0.6 6 (-50% to +20%) 1.0 Radio wave type and frequency:

Antenna revolution: 24 rpm or 48rpm Transmit/receive switching:

Intermediate frequency:

Noise figure:

8.3 Display Unit Type:

Indication system:

Indicator:

Cursor Control:

VRM:

EBL:

Display modes:

86 P0N, 9410 30 MHz Circulator and limiter type 60 MHz

(logarithmic amplifier) 6.5 dB or less RF720A PPI, PPI+semi-3D, Split radar range 15-inch color LCD(TFT) 640 x 480 dots Four(4 ) levels Analog cursor key and rotary encoder 2 lines (One line can be offset.) Unit of distance can be selected from NM, KM, and SM. 2 lines (One line can be offset.) HU, HS, NU, CU, and TM 4 levels 2 modes 15, 30 sec, 1, 3, 6 min. and continuous. Can be 100% off-centered over the full range. Can be set at any desired distance and angle in any desired width. IN and OUT modes are available. Interference rejection, Zoom, Sleep mode, Hold mode, Course error display, Parallel cursors, Stern marker, and Navigation data display mode Off-center:

Guard zone:

Stretch:

Echo track:

Other functions:

Panel brightness:

Language support:

8.4 ATA Unit The ATA Board Specifications

(1)

(2)

(3)

(4)

(5)

(6)

(7)

(8)

(9) Note. Note: The ATA board does not accept bearing signals other than specified above. In case the ATA board is used in the monitor mode display, make sure an incoming bearing pulse rate agrees with that specified in this specification. Acquisition Tracking Number of tracked targets ATA data output Alarm Display Tracking range PRF Bearing signal Symbols: Predicted point and target number Vector : Predicted motion of a target as a result of own ship's direction and speed input. Display modes: Relative (REL)/True (TRUE) Chinese, Danish, English, French, German, Greek, Italian, Japanese, Korean, Norwegian, Portuguese, Russian, Spanish, Swedish, and Turkish Collision alarm, activated when a target enters the preset CPA and TCPA ranges. Lost alarm, activated when a target can no longer be tracked. 0.5 to 40 NM 2,000 Hz maximum 1,080 or 2,048 pulses / rev

(Switched automatically) See

(A target is acquired manually by a cross cursor driven by the Pointing Device.)

(Target Number, distance, bearing, speed, course, CPA and TCPA) Automatic 10 targets maximum Manual 87 External buzzer control output, Auxiliary indicator connecting signal output and input, Bow direction signal input(SIN/COS signals), and compass interface (10/12 bits serial) 8.5 External Interface NMEA0183:

L / L Heading Speed Way point Depth Course error Seawater temperature Others (using optional cable):

8.6 Standard set 8.7 Options 8.8 External dimensions and weight Display unit Scanner unit Display cover Fuse Interconnecting cable Power supply cable M12 hexagonal bolt See APPENDIX 2 channels

(One standard channel;

Optional cable is required for 2nd-channel connections) GGA, GLL, RMA, RMC HDT, HDG, HDM, HSC, VHW, VTG VHW, VTG, RMA, RMC RMB, BEC, BWC, BWR, BER, BPI DBT, DPT RMB, XTE MTW 1 1 1 1 set 1 (10m) 1 (2m) 4 sets Interconnecting cable (15, 20, and 30 m) Junction box for external connection (with cable 1.5m) Option connector kit 249J153058 88 8.9 External Connection and function X1 Connector for Option function pin No. Name 1 19 2 20 3 21 4 22 5 23 6 24 7 25 8 26 9 27 10 28 11 29 12 30 13 31 14 32 0 to -1V negative video, Zo = 50ohm NMEA ch2 data input(A) NMEA ch2 data input(B) Trigger signal input for Monitor operation 0 to 5V positive pulse, rising edge Trigger output for External Monitor 0 to 5V positive pulse, rising edge Heading signal input for Monitor operation 0 to 5V negative pulse, falling edge Heading signal output for External Monitor 0 to 5V negative pulse, falling edge Bearing Pulse input for Monitor operation 0 to 5V positive pulse, rising edge Bearing Pulse output for External Monitor 0 to 5V positive pulse, rising edge NMEA2-A NMEA2-B GND Output for External Buzzer EXBUZ+

Output for External Buzzer EXBUZ-

controlled ship's power output Video input for Monitor operation VIDEO_IN 0 to -1V negative video, Zi = 50ohm VIDEO_OUT Video output for External Monitor GND TRIG_IN TRIG_OUT SHF_IN SHF_OUT AZI_IN AZI_OUT GND GYRCK+

GYRCK-

GYRDT+

GYRDT-

GND MARK_I

+12V SIN COS REF

GND NMEA_OUT NMEA data output, ex) MOB data, TARGET data External Marker signal input, ex) Radar Buoy negative video, 0 to -1V Zi = 50ohm External interface power, 100mA max. Compass Interface for SIN/COS type Compass Interface for SIN/COS type Compass Interface for SIN/COS type SIN/COS signal: SIN = REF+/-1V, COS = REF+/-1V not used Gyro Interface clock(+) input Gyro Interface clock(-) input apply 5V pulse between (+) and (-), isolated Gyro Interface data(+) input Gyro Interface data(-) input apply 5V pulse between (+) and (-), isolated 89 1. RA53 General System Diagram Appendix 2. RA54 General System Diagram 90 3. Interconnection Diagram SCANNER UNIT E41-100 PCB (J2): RA53 E41-101 PCB (J2): RA54 No. Color Function 1 17 VIOLET

+250 V 2 3 17 YELLOW 4 34 RED 5 34 YELLOW 6 34 GREEN NC GND SHIPS+

SHIPS+

SHIPS-

7 34 BLUE E41-100 PCB (J1): RA53 E41-101 PCB (J1): RA54 No. Color SHIPS-

Function 1 17 BLUE 2 3 34 ORANGE

+24V NC

+12V 4 Braid of RED DAT-R 5 RED DAT 6 Braid of BROWN BP/SHF-R 7 BROWN BP/HG 8 Braid of GRAY V/TRG-R 9 GRAY V/TRG POWER PCB (J1) No. Color 1 17 VIOLET 2 17 BLUE 3 34 ORANGE 4 17 YELLOW Function

+250 V

+24V

+12V GND 5 Braid of RED DAT-R DISPLAY 6 RED UNIT 7 DAT NC 8 BROWN BP/SHF 9 Braid of BROWN BP/SHF-R 10 GRAY 11 12 34 RED 13 34 YELLOW V/TRG NC SHIPS+

SHIPS+

14 Braid of GRAY V/TRG-R 15 34 GREEN 16 34 BLUE SHIPS-

SHIPS-

91 A Adjustment Distance.......................................75 Angle ...........................................76 Tuning .........................................77 Antenna height ...........................78 Automatic gain............................78 Automatic STC............................79 ALL PPI Screen .....................................65 ALL PPI/PPI Screen..............................65 ATA Acquisition ..................................81 All cancel .....................................82 ATA..............................................80 ATA alarm...................................80 ATA Data display .......................82 ATA Data output ........................83 ATA setting .................................81 ATA symbol.................................83 Cancel tracking...........................82 CPA..............................................80 Log signal ....................................84 Ships speed.................................83 TCPA ...........................................80 Tracking ......................................81 B Bearing ..................................................26 Brilliance................................................28 Buzzer volume .......................................71 C Changing the setting (CUSTOM) .........68 Course error (XTE) ................................27 Cross cursor (+)......................................26 D Display modes (MODE).........................37,52 E EBL

.....................................................34,46 Echo expansion (ST) .............................40,57 Echo Menu .............................................56 F False echoes ...........................................4 FL VRM2, FL EBL2 ..............................35,47 FTC

.....................................................32,57 G Gain

.....................................................31,56 Guard zone (GZ) ....................................38,53 Guard zone mode (GZ MODE) ...73 Guard zone level (GZ LVL).........73 92 H Heading marker.....................................6 Heading Off (HDG OFF).............37,49 Heading flash (HM FLSH) .........71 Heading angle (HDG) .................25 Hold (HOLD)..........................................73 L Language ...............................................73 M

+MK LINE .............................................51 Menu .....................................................45 Man Over Board (MOB) ........................33 MOB Screen...........................................65 Monitor mode (MONI)...........................73 N Nav (Navigation) Menu.........................52 Navigation screen..................................27 North mark (NORTH M).......................6,71 O Off-center (OFF-C) ................................38,54 Option ....................................................93 P Parallel cursor (///CSR) .........................37,49 PPI Screen .............................................63 PPI/NAV Screen ....................................65 PPI/PPI Screen ......................................63 PPI/SEMI3D Screen..............................63 P TABLE (Pulse table) ..........................72 R Radar interference.................................6 Radar screen ..........................................25, 26,27 Range .....................................................30 Range rings (RINGS).............................37,50 Range ring interval.....................50 Reverse display......................................66 S Semi-3D .................................................42,63 Sleep (SLEEP) .......................................54 Speed (SPD SET)...................................74 ST'BY .....................................................29 ST'BY screen..........................................71 STC Stern mark (STERN M) ........................71 Switching the screen (SEL WIN)..........41,64 Self check (SYSTEM CHECK) ..............67

.....................................................32,57 T Target (TARGET) ................................. 51 Track (TRACK) ..................................... 40,58 Tune

.................................................... 40,57 Tune meter ........................................... 26 V VAR RNG .............................................. 37,50 VRM1..................................................... 34,47 VRM unit (VRM UNIT) ........................ 71 W Way point (WP)..................................... 27 WP BRG (Bearing of Way point).......... 71 X XTE (Course error) ............................... 25,27 Z ZOOM .................................................... 40,59 93

 

 

CHAPTER 4. FUNCTIONS AND NAMES Function and name of each part The RA53/54 radar consists of a display unit to display video images on a screen and a scanner unit configured with an antenna to radiate radio waves and other components. The display unit has on its front panel eighteen(18) push-switch keys and one cursor key that lets you move a cursor in any desired direction. A combination of these keys allows you to utilize all functions of your radar, providing a comfortable, easy way to operate. 4.1 Key layout Key No. SET1 SET2 1 2 3 4 5 6 7 EBL1 VRM1 VAR RNG TRACK TARGET SEL WIN NEXT EBL2 VRM2 FL EBL2 FL VRM2 GZ OFF-C NEXT SET3 DATA DEL ALL DEL TRACK ZOOM PICTURE NEXT SET4 PPI PPI/3D PPI/PPI PPI/NAV ALL PPI ALL PPI2 NEXT Tab. 5 Function of soft key (Factory setting)

*Every time Next key is pressed, soft key group switches as follows. SET1 SET2 SET3 SET4 28 4.2 Rear panel 1. Power supply connector Use this connector to plug in the power supply cable. Standard NMEA interface terminal is included in this connector. Refer to Section 3.7 Connecting Cables and Section 3.9 Connecting External Equipment to Display Unit . 2. Grounding terminal 3. Option connector Use this terminal to connect grounding wire. Refer to Section 3.7 (3) Grounding wire. Use this connector to connect NMEA, an external monitor, external buzzer and GYRO I/F. A dedicated cable or dedicated module box is required to connect these pieces of equipment. Refer to Section 3.9 Connecting Ex-

ternal Equipment to Display Unit. 4. Scanner connector Use this connector to plug in the inter-connecting cable to connect the scanner unit. Refer to 3.7 Connecting cable . 4.3 Radar screen( Single screen ) Range Range ring interval Display mode Heading angle Cruising speed Enlarging echo Guard zone Track Way point EBL1 VRM1 3 1 HU L 59 AT AT 0.23NM HDG 129.0 T SPD 12.0 KT G S F ST1 GZ TK 15 S WP 134.4 12.5NM

+LAT/LON 35 08.42N 139 02.53E 1 129. 8 1 12. 3NM IN 1:58 RADAR OFF

Pulse width Course error Gain STC FTC Cross cursor Cross cursor position

(LAT/LON or Distance/Bearing) 29 Tune meter Picture hold Zoom Off-center Indicate soft key Ships position EBL2 VRM2 A HOLD ZOOM OFF-C EBL1 VRM1 EBL2 VRM2 FL EBL2 FL VRM2 NEXT LAT/LON 35 08. 42N 139 02. 53E 2 129. 8 2 12. 34NM Tune meter Picture hold Indicate soft key AUTO (Left/Right) Gain (Left/Right) STC (Left/Right) FTC (Left/Right) EBL2 A HOLD EBL1 VRM1 EBL2 VRM2 FL EBL2 FL VRM2 NEXT AT1 G 59 / AT S AT / AT F AT / AT 2 129.8 2 3.62NM OFF-C HOLD ZOOM Off-center Picture hold Zoom Range ring interval

(Left screen) Range(Right screen) Range ring interval

(Right screen)

.75

.25 Cruising speed Guard zone(Right screen) Heading angle Guard zone(Left screen) Way point SPD 12.8KT HDG 129.2

+MK 38.4 5.28 GZ R IN GZ L IN ST1 TK 15S WAY P 134.4 12.5NM 35 08.42N LAT LON 139 02.53E Ships position VRM2 Cross coursor position Enlarging echo

(LAT/LON or Distance/Bearing) Track

L 6 1.0_ HU Display mode Range(Left screen) Pulse width Cross cursor 4.4 Radar screen (Dual screen) ex) PPI/PPI screen 4.5 Radar screen (All PPI screen) Range Range ring interval Display mode Guard Zone Course error EBL1 VRM1 0.23 XTE >>>

1 129.8 1 12.34NM 3 1 HU GZ IN L Pulse width 1:58 RADAR OFF

Cross cursor 30 Display mode Pulse width Cross cursor 6 1.0_ HU L GZ IN Range ring interval

(Left screen) Range(Left screen) 4.6 Radar screen (All PPI /PPI screen) 4.7 Navigation screen

Way point Heading angle Cruising speed Current position Sea water temperature Depth of water N A V D I S P L A Y W P 1 3 4 . 4 1 2 . 5 N M 1 2 9 . 0 1 2 . 8 K T 3 5 0 8 . 4 2 N 1 3 9 0 2 . 5 3 E H D G S P D L A T L O N 2 0 . 5 C T E M P D E P T H 9 3 . 2 M Range(Right screen) Range ring interval

(Right screen)

.75

.25 GZ IN HOLD Picture hold Guard zone(Right screen) Guard zone(Left screen) C O U R S E

0 . 2 3 N M Course error

(XTE) S T B Y To show the NAV display, you need to connect a GPS receiver to your radar. The NAV display shows the position and cruising speed of your ship, seawater temperature, and other navigation information. Note: Heading angle will be displayed "COG" when Course Over Ground data is used. Note: Cruising speed will be displayed "SOG" when Speed Over Ground data is used. Deviation from Indication mark 0.00 --

0.02 --

0.04 --

0.08 --

0.16 --

> or <

>> or <<

>>> or <<<

>>>> or <<<<

Tab.6 Indication of deviation from course

> Indicates starboarding the helm

< Indicates porting the helm (left) 31 CHAPTER 5. OPERATION Basic operation of radar The RA53/54 radar has several fixed-function keys on the front panel. Press the relevant key to control these func-

tions. Also, you can customize particular functions to the soft-keys. The following paragraphs explain the operation of each key. 5.1 Turning On and Off the radar

(1) Turning On Press the "POWER" key. Buzzer sounds a short beep and then the radar system will be powered. Screen brilliance will be set to the level at which the radar system was turned off.

(2) Turning off Keep pressing the "POWER" key more than 3 seconds, and then the radar system will be turned off. 5.2 Adjusting brilliance of screen and key-backlight

(1) Press the "BRILL" key. A bar graph and figures appear in the lower left corner of the screen, indicating the screen brilliance. Under the screen brilliance figure, a figure indicating key-backlight brilliance will appear.

(2) Adjust each item with the control knob. Items can be selected by the UP/DOWN cursor.

(3) When the adjustment is finished, press either the "BRILL" key or the "ENT" key to exit from the adjustment screen. (Pressing some other key after adjustment will lead to the function of the pressed key.) Control knob (Adjustment of brilliance) Up/Down (Selection of brilliance, key-backlight) BRILL or ENT Other function key Move to other functions BRILL

.75

.25 HU STBY

BRILLIANCE 50 KEY BACKLIGHT 4 32 5.3 Basic Operations xxx = Keys to press 5.3.1 Turning On and Off POWER BRILL Press POWER key to turn the radar on. The 2 minute countdown timer starts and the RADAR OFF sign will be displayed. Press the "BRIL" key. Control bar is indicated on the screen. Select brilliance. Up/Down Control knob Adjust brilliance with knob. Up/Down Control knob Adjust key backlight with Select key backlight. knob. ENT Press "ENT" key to return. 75

.25 HU 1:58 RADAR OFF

BRILLIANCE KEY BACK LIGHT 4 50 Radar turns into ST'BY mode after 2 minutes and the ST'BY sign will be displayed. Press the POWER key to transmit, and the radar picture appears on the screen. Further press of the POWER key brings the radar to STANDBY mode. To turn off the radar, press and hold the POWER key more than 3 seconds. 75

.25 HU AT

POWER ON SCREEN Brilliance Key backlight 5.3.2 Transmitting START POWER CHANGE RANGE RANGE UP or Pressing the RANGE UP key increases the range scale. RANGE DOWN Pressing the RANGE DOWN key decreases the range scale 33 5.3.3 Adjusting the brilliance of screen and key-backlight xxx = Keys to press

(1) Press the "BRILL" key. (Bar and figure indicating brightness, and figure indicating backlight appears on the screen.)

(2) Select brilliance or key-backlight with the up-down cursor.

(3) Adjust each item with the control knob.

(4) When the adjustment is finished, press either the "BRILL" key or the "ENT" key to exit from the adjustment screen.

(Pressing some other key after adjustment will lead to the function of the pressed key.) BRIL Control knob (Adjustment of brilliance) Up/Down (Adjustment of brightness, panel) Other function key Shift to other functions BRIL or ENT

. 75

. 25 HU STBY

BRILLIAMCE 50 KEY BACKLIGNT 4 5.3.4 Changing the range scale (RANGE UP, RANGE DOWN) Pressing the RANGE UP key increases the range scale and the RANGE DOWN key decreases the scale. RA53 RANGE Number of rings 0.125 2 0.25 2 0.5 2 Range ring interval 0.0625 RA54 0.125 0.25 RANGE Number of rings 0.125 2 0.25 2 0.5 2 Range ring interval 0.0625 0.125 0.25 0.75 3 0.25 0.75 3 0.25 1.5 6 0.25 1.5 6 0.25 3 6 0.5 3 6 0.5 6 6 1 6 6 1 12 6 2 12 6 2 24 6 4 24 6 4 48 6 8 48 6 8 64 4 16 72 6 12 Pressing the AUTO key sets the up GAIN, STC and FTC to optimized level automatically. 5.3.5 Automatic adjustment (AUTO) If you press the AUTO key while GAIN, STC, or FTC are set in manual mode, they will all be switched to AUTO or HBR (Harbor) mode. Continual pressing of the AUTO key brings in the AT1, AT2 and HBR signs in circulating sequence. These signs mean the degree of automatic processing, selected according to the navigational situation. To cancel the AUTO mode, press the STC key. The GAIN, STC and FTC controls will be brought to manual mode. Note that pressing either the GAIN or FTC key sets only the pressed function to the manual mode. AT1: Used in navigating congested waters such as harbors, narrow channels, etc. The controlled condition is that the weather and sea clutter components are expertly suppressed, while the receiver gain is slightly reduced. AT2: Used in the open sea navigation. The controlled condition is similar to that of AT1 while the receiver gain is increased adequately. HBR: Used in bay areas, inlets, or harbors. In this mode the STC will be set to semi-manual mode and FTC in manual mode. To set up the degree of STC, enter the HARBOR of ADJUST menu. Note) Refer to "Setting STC circuit (STC)" in section 5.5.4.5.4(6). 34 REMINDER:

* What happens if GAIN, STC, and FTC keys are pressed during AUTO operation?

Only GAIN enters a manual state. Only FTC enters manual state. STC, GAIN, and FTC enter manual state. 1) If GAIN key is pressed, 2) If FTC key is pressed, 3) If STC key is pressed, 5.3.6 Sensitivity adjustment (GAIN)

(1) When you press the "GAIN" key, the GAIN display on the left side of the screen will be reversed as G 35 , allowing the manual gain adjustment to be effective.

(2) When you turn the control knob either CW or CCW, the figure will change within a range of 0 through to 99, causing the sen-

sitivity to be manually adjusted. When you press the AUTO key, GAIN, STC and FTC will be automatically set up to opti-

mized level.

(3) After the adjustment is finished, press the "GAIN" key to exit from the adjustment mode. If some other function key is pressed, that function will become effective. 75

.25 HU G 50 STBY

(a) To make adjustments by MANUAL (When the GAIN key is pressed under AUTO operation, shifting to a manual GAIN --------------------- The adjustment state is ended. Other function key --- Shift to other functions AUTO -------------------- GAIN, STC, and FTC are set at AUTO and the adjustment state is ended. AUTO ----------------------------------------------------------------

Set GAIN, STC and FTC at AUTO operation will take place.) GAIN Control knob AUTO

(b) To switch from the MANUAL state 5.3.7 Reducing the sea clutter (STC) STC manual control to be effective.

(1) When you press the "STC" key, the STC display on the left side of the screen will be reversed as S 35 , allowing the

(2) When you turn the control knob, the figure will change within a range of 0 through to 99, allowing the manual control STC to be effective. When you press the "AUTO" key, GAIN, STC and FTC will be set to AUTO mode.

(3) After the adjustment is finished, press the "STC" key to exit from the adjustment state. If some other function key is pressed, that function will become effective.

(a) To make adjustments by MANUAL (When the STC key is pressed under AUTO operation, shift to a manual operation will take place.) STC Control knob AUTO STC ----------------------- The adjustment state is ended. Other function key ----- Shift to other functions AUTO ---------------------- STC, GAIN, and FTC are set at AUTO and the NOTE) When you select MANU (Manual) mode, GAIN and FTC will be switched to MANU (Manual) mode, too. adjustment state is ended. AUTO ----------------------------------------------------------------

Set STC, GAIN and FTC at AUTO

(b) To switch from the MANUAL state 35 5.3.8 Removing rain and snow clutter (FTC)

(1) When you press the FTC key, the FTC display on the left side of the screen will be reversed as F 50 , allowing the manual control of FTC to be effective.

(2) When you turn the control knob either CW or CCW, the figure will change within a range of 0 through to 99, changing the receiver gain. When you press the AUTO key, GAIN, STC and FTC will be set to AUTO mode.

(3) After the adjustment is finished, press the "FTC" key to exit from the adjustment mode. If you press some other function key, shifting to that function will take place. 75

.25 HU F 50 STBY

(a) To make adjustments by MANUAL control (When the FTC key is pressed under AUTO operation, shifting to a manual operation will take place.) FTC Control knob AUTO FTC ---------------------- The adjustment becomes ineffective. Other function key --- Shift to other functions AUTO -------------------- GAIN, STC, and FTC are set at AUTO and these functions will become ineffective.

(b) To switch from the MANUAL mode to the AUTO mode AUTO ----------------------------------------------------------------

Set GAIN, STC and FTC at AUTO 5.3.9 Man Over Board (MOB) Pressing the MOB key will send the ship's own position data (WPL field in NMEA sentence) to external equipment through the NMEA port. There is no change on the screen. To check the MOB position data, select "MOB" from the "WINDOW" menu in the "SETUP". The position of MOB and current position will be displayed on the screen. If you press the MOB key while watching the MOB screen, the MOB data will be cleared and the display returns to previous screen. If you press other key, MOB data will remain and the display returns to previous screen. 5.3.10 Acquisition of a target (ACQ) Firstly, select the target to track. Place the cursor on the target image and acquire it by pressing the ACQ (acquisi-

tion) key. Select the target when it is displayed clearly and no other targets are displayed around it. If other targets are displayed around it, the ATA may track a different one. All targets acquired by ATA are identified by the numbers, from 0 to 9. These figures will be shown in the upper right window on the screen. A vacant column shown like "-" indicates no target being acquired. Before starting selection, use the TGT NUM (target number) key so that "-" is highlighted. 5.3.11 Select target number (TGT NUM) The TGT NUM key is used to change the target numbers. The target number will not change automatically unless this function is used. When ATA starts acquisition, a symbol appears at the cursor position on the screen, and the target number is shown on the lower right side of the symbol. 36 5.4 Functions of Soft Keys xxx = keys to press

< Outline of soft keys >

Any function can be optionally allocated to the key upon which numbers 1-7 are indicated. A maximum of 4 groups of functions can be allocated to each soft key, and switching between those functions is conducted by the "NEXT" key. 5.4.1 Bearing measurement (EBL1)

(a) Bearing measurement by EBL1

(1) When you press the EBL1 key, the electric bearing line (EBL1) appears and the angle from the direction of the ships head, which is set at 0 o , will appear in a reverse display at the lower left side of the screen (See Note).

(2) Use the control knob to place the direction cursor on the target, and read the angle.

(3) After the setting i) If you press the EBL1 key, the setting will be completed. ii) If you press other function key, the function will be shifted to that of the pressed key with the setting condition still in effect. Control knob EBL1 EBL1 is displayed and the process is finished. EBL1 Other function key EBL1 is displayed and the function is shifted. EBL1 is turned off.(b) note: 1 xxx.x o indicates EBL1. EBL1

(b) To turn off the EBL1 When you press the EBL1 key, EBL1 will disappear. (EBL1 OFF) Note: Refer to "5.5.1.1 Bearing measurement (EBL1)". 5.4.2 Bearing measurement (EBL2) The operation is the same as EBL1. Refer to the EBL1 operation. The EBL2 will appear in a reverse display at the lower right side of the screen. 5.4.3 Distance measurement (VRM1)

(a) Distance measurement by VRM1

(1) If you press the VRM1 key, a Variable Range Marker 1 (VRM1) will appear and the distance of VRM1 will appear in a reverse display at the lower left side of the screen.

(2) Place the marker on the front edge of the target with the control knob and read the distance.

(3) After the setting i) If you press the VRM1 key, the setting will be completed. ii) If you press other function key, the function will be shifted to that of the pressed key with the setting condition still kept in effect. VRM1 Control knob Other function key VRM1 note: 1 xxx.x NM indicates VRM1. VRM1 The VRM1 distance is displayed and the VRM operation is ineffective. VRM1 is displayed and the effective function shifts to other function. VRM1 is turned off.(b)

(b) To turn off the VRM1 If you press the VRM1 key, VRM1 disappears. (VRM1 OFF) Note: Refer to "5.5.1.2 Determining the distance (VRM1)". 37 5.4.4 Distance measurement (VRM2) The operation is the same as VRM1, refer to VRM1 operation. The "VRM2" will appear in a reverse display at the lower right side of the screen. 5.4.5 Measuring the angle between two points (FL EBL2) Note: VRM2 and EBL2 do not follow the OFF-C function while floating. Note: Refer to "5.5.1.5 Measuring the distance or angle between two points ( FL EBL2, FL VRM2 )".

(a) Setting a reference point for measurement of the angle.

(1) Press "FL EBL2" key. SET START POINT is displayed and a small cross mark appears. FL EBL2

(Select FL EBL2) the small cross mark appears. FL EBL2 is turned ON and

(2) Use the left-right and up-down cursor keys to place the small cross mark on one of the two echoes whose angle will be measured, and press the "ENT" key.

--------- ENT Criterion of the reference point is set. Up/Down & Left/Right

(Place the cross cursor on an echo)

(b). Measuring Perform the operations in the above mentioned and "measuring the angle (EBL2)", and place the EBL2 on other echo. EBL2 is displayed on the screen referenced by the fixed cross cursor, which is positioned. The " 2 xxx.x " will be displayed at the lower right side that shows the angle between the two points. 5.4.6 Measuring the distance between two points (FL VRM2) Note: Refer to "5.5.1.5 Measuring the distance or angle between two points ( FL EBL2, FL VRM2 )".

(a) Setting a reference point for measurement of the angle.

(1) Press the FL VRM2 key. The SET START POINT sign will be displayed and a small cross mark appears. FL VRM2

(Select FL VRM2) FL VRM2 is turned ON and the small cross mark appears.

(2) Use the left-right and up-down cursor keys to place the small cross mark on one of the two echoes whose angle will be measured, and press the "ENT" key. Up/Down & Left/Right

--------- ENT Criterion of the reference point is set.

(Place the cross cursor on an echo)

(b) Measuring Perform the operations mentioned above and "measuring the distance(VRM2)", and put the VRM2 on other echo. VRM2 is displayed on the screen referenced by the fixed cross cursor, which is positioned. The distance between two points will be shown like "

x. xNM", which is displayed at the lower right side 2 of the screen. 5.4.7 Changing the group of Soft Keys (NEXT) Any function can be optionally allocated to the key upon which numbers 1-7 are indicated. You can allocate 4 groups of functions at maximum to each soft key, and switch between those functions by the "NEXT" key. The "NEXT" key switches between allocated function groups on the soft key with numbers 1-7 indicated. Every time you press the "NEXT" key, function group changes one another. You can also change the function group using the left-right cursor key, at the "KEY ASSIGNMENT" function in the "CUSTOM" menu of the "SETUP". 38 Operation_ 7 NEXT SET1 1 _Soft Key Setting Example_ EBL1 VRM1 VAR RNG SEL WIN TARGET TRACK 3 4 5 2 6 EBL2 VRM2 FL EBL2 FL VRM2 GZ OFF-C NEXT 7 NEXT NEXT 7 NEXT 7 NEXT 7 SET2 1 2 3 4 5 6 7 DATA DEL ALL-DEL TRACK ZOOM PICTURE NEXT SET3 1 2 3 4 5 6 7 PPI PPI/3D PPI/PPI PPI/NAV ALL PPI ALL PPI2 NEXT SET4 1 2 3 4 5 6 7 The function can be changed at the "KEY ASSIGNMENT" function in the "CUSTOM" menu of the "SETUP". 5.4.8 Erasing the Heading Marker temporarily (HDG OFF) Press the HDG OFF key. The heading marker is turned off as long as you press and hold the key. 5.4.9 Using parallel cursors (///CSR) Press the ///CSR key. Parallel cursors will appear on the screen. As you rotate EBL, the parallel cursors also rotates in synchronism with EBL. To cancel the "///CSR" function, press "///CSR" key once more. Note: Refer to "5.5.1.8 Using parallel cursors (///CSR)". 5.4.10 Establishment of the indication of the RANGE RINGS (RINGS) Press the RINGS key. Range Rings will appear on the screen. To cancel the "RINGS" function, press "RINGS"

key once more. Note: Refer to "5.5.1.9 Establishment of the indication of the RANGE RINGS (RINGS)". 5.4.11 ON/OFF of variable range function (VAR RNG) The range scales are allocated as standard in steps of 0.5--0.75--1.5--3.0--.....(STEP mode), but using this function you can set up the scaling to be more closely separated, such as 0.5--0.6--0.7--0.8--..... (CONTINUOUS mode). Press the VAR RNG key. The VAR RNG function becomes valid and the sign VAR appears at the upper left side of the screen (beside MODE). To cancel the "VAR RNG" function, press the VAR RNG key again. To change the range scale in the CONTINUOUS mode, use the up-down cursor while the VAR RNG function is on. To change the range scale in the STEP mode, press the "RANGE UP" or "RANGE DOWN" key. If you press other keys, the relevant key function becomes effective with current VAR RNG function being acti-

vated. 5.4.12 Changing display modes (MODE)

(1) Select MODE from the pull-down display items using the up-down cursor keys, and press the "ENT" key.

(2) When the HU/HS/NU/CU/TM sign is displayed beside the MODE item, select display mode with the up-down cursor keys and press the "ENT" key.

(3) The setting completes when you press the ENT key after the selection. (NOTE1,2) Press the "MODE" key, the display mode will change on every press of the key to HU (Head Up), HS , NU, CU, TM in order. The words MODE SELECT appear at the upper part of the screen. However, a setting will be needed for the ships speed if TM is selected. Also, a heading or a course information is necessary for NU, CU and TM. 39 note: TM is valid on PPI screen only. The mode will change to NU on the other screen automatically. Note: Refer to "5.5.2.1 Changing display mode (MODE)". 5.4.13 Guard Zone (GZ) A function that sets a guard zone of any distance and any angle range, creating an alarm tone when either echoes above a certain level exist (IN MODE) or no echoes exist(OUT MODE). When you activate the GZ function with soft keys, the guard zone and ON/OFF settings can be made, however, the guard zone mode (IN or OUT) must be set in the menu. Note: Refer to "5.5.2.2 Guard Zone (GZ)".

(1) When you press the "GZ" key, the present mode setting will be displayed on the left side of the screen shown as GZ IN. A small cross cursor for setting the guard zone will be displayed on the screen center while "SET CENTER POINT" is displayed at the bottom, activating a guard zone setting state.

(2) Use the up-down/left-right cursor keys to move the cross cursor to the center of the warning zone to be set, and press the "ENT" key.

(3) From the cross cursor position set in (2) above as the center, expand the guard zone towards further out of the range with the up cursor key, and towards azimuth, use the right cursor key, thus forming a fan-shaped guard zone. To make the warning zone smaller, press the down cursor key to reduce the range and press the left cursor key to reduce the azimuth angle.

(4) Press the "ENT" key to fix the settings. Press the GZ key twice to cancel the guard zone function. GZ Up/Down & Left/Right

(Setting the center of GZ) ENT Up/Down & Left/Right

(Setting the scope of GZ) ENT Setting completed GZ

-------------------------------------------------------------------------------------------Canceling GZ

<Silencing the audio alarm>

Press the "MENU" key or "ENT" key to silence the beep. NOTE: Set the mode (IN or OUT) at the "GZ MODE" of the "PRESET2" function in the "CUSTOM" menu of the

"SETUP"

Set the alarm level (IN or OUT) at the "GZ LVL" of the "PRESET2" function in the "CUSTOM" menu of the

"SETUP"

5.4.14 Off Center (OFF-C) Own ship position can be offset to any desired point designated by the cross cursor within the screen. Note: Refer to "5.5.2.3 Shifting display in specific direction (OFF-C)".

(1) When you press the "OFF-C" key, the sign OFF-C will be displayed in the upper right corner of the screen and "SET OFF CENTER POINT" at the bottom of the screen, and setting is ready to be entered.

(2) Move the cross cursor with the cursor keys to move own ships position to an intended location, and press the "ENT"

key. Own ships position will be offset to the point as designated by the cursor. OFF-C is displayed in the upper right corner of the screen, indicating the "OFF-C" state is entered.

(3) To cancel "OFF-C" function, press the "OFF-C" key.

(a) To set off-centering point, press relevant keys as follows:

OFF-C screen only. Up/Down & Left/Right ENT --------------- Fixes the off-centering point and exit the off-centering state. Note: VRM2 and EBL2 do not follow the off-centered picture while they are floated. The function operates on PPI

(b) To cancel the OFF-C function, press the OFF-C key again. OFF-C The "OFF-C" display at the upper right disappears and function returns to the ordinary state from the Off Center state. 40 5.4.15 Setting of the SLEEP function (SLEEP) This function allows the transmitter to transmit 30-seconds during pre-fixed hours. After a transmission, a power-saving mode is entered with the screen put into the ST'BY mode (the scanner is kept OFF state) and the LCD backlight lamp is turned off. This action is repeatedly executed. For example, set a guard zone and set the warning signal automatically confirmed every prefixed period. Press the "SLEEP" key to set up the sleep period. Every press of the key sets up the "SLEEP" time every 5 minutes like, 5-minutes, 10-minutes, 15-minutes, and off. When a transmission takes place after setting a SLEEP mode, a ST'BY state is entered and the backlight turns off after a 30-second-transmission. (Power-saving mode). Two minutes before the fixed time the backlight turns on and the 2-minute timer starts. Then, at the fixed time another 30-second-transmission begins. This series of actions repeats. If any one key is pressed during the course of this action, the SLEEP function will be canceled. Note: Refer to "5.5.2.4 Setting of the SLEEP function(SLEEP)".

(1) Setting procedure SLEEP SLEEP SLEEP

(Select 5min.)

(Select 10min.)

(Select 15min.) ENT ENT ENT POWER -------------------

POWER ------------------

POWER ------------------

transmission ON transmission ON transmission ON SLEEP

(Select OFF) ---------------------------- SLEEP function is turned OFF Setting completed 30-second-transmission every 5 min. 30-second-transmission every 10 min. 30-second-transmission every 15 min. 5.4.16 Tuning adjustment (TUNE) 35 and the adjustable state will be entered. ceiver tuning be manually adjusted.

(1) When you press the "TUNE" key, the TUNE display on the upper-right side of the screen will be reversed as

(2) When you rotate the rotary control, the figure changes within a range of 0 through to 99, allowing the re-

(3) After the adjustment is finished, press the "ENT" key to exit from the adjustment state. If some other function key is pressed, shift to that function will take place. TUNE Control knob

--------------------- TUNE or ENT The adjustment state is ended.

(tuning adjustment) Other function key --- Shift to other functions Expanding the echo to the direction of the distance. When you press the "ST" key, the sign "ST1" will be displayed on the left side of the screen, causing the echoes to be Note: Use the "MENU" to return auto-tuning state. Note: Refer to "5.5.3.4 Adjusting receiver tuning (TUNE)". 5.4.17 Echo expansion (ST) stretched towards range. Two types of echo expansion are available, Note: Refer to "5.5.3.5 Echo expansion (ST)". ST1 ST2

(Expansion rate ST1 < ST2 ) OFF Note: The "OFF" state is not displayed on the screen and the "ST2" display disappears. 5.4.18 Displaying ships track (TRACK) When you press the "TRACK" key, "TK 15SEC" will be shown on the left side of the screen, causing the track mode to be available. The sign 15S indicates the length of the track, and displays a maximum of 15-second-long sailing track. Note: Refer to "5.5.3.6 Displaying track of target (TRACK)". Every press of the TRACK key changes the plotting time of ships track as follows. 41 15 sec 30 sec 1 min 3 min 6 min CONT OFF Note: The "OFF" state will not be displayed on the screen and the "TK xx " display will disappear. 5.4.19 Enlarging selected areas (ZOOM) The video image shown around the cross cursor can be zoomed twice as large as normal one on the screen. Press the "ZOOM" key to "ZOOM" ON. A small cross cursor and the sign "SET ZOOM POINT" will be displayed on the screen center and at the bottom respectively, and the magnification point is to be set. Use cursor keys to move the cross cursor to the point to be magnified and press the "ENT" key to complete the settings. The area around the cross cursor is displayed in 2x magnification, with blinking "ZOOM" displayed at the screen upper right, indicating that a ZOOM dis-

play is being conducted. To cancel the ZOOM function, press the "ZOOM" key again or change the range scale. Note: Refer to "5.5.3.7 Enlarging selected areas (ZOOM)". ZOOM Up/Down & Left/Right ENT

--------------- ZOOM setting

(Move cross cursor)

(Select OFF) ZOOM ZOOM canceled Note1: VRM2 and EBL2 do not follow the ZOOM function during a floating state. Note2: Normal screen returns when you change the range scale. Note3: ZOOM function is unusable in 3D/PPI screen. Note4: ZOOM function is unusable in OFF-C. Note5: Center of ZOOM can be set to any desired position within the set range. 5.4.20 Increasing sensitivity (S/L) The transmitting pulse length is automatically set as you change the range scale. However, on certain range scales, you have an option to select the pulse length to shorter or longer pulse length. Select the pulse length according to the navi-

gational situation you are facing, shorter pulse lengths for better picture definition and longer pulse lengths for better range performance. As an adverse effect, the shorter pulse lengths may sacrifice the range performance and in turn, the longer pulse lengths lose the picture clarity compared with those selected as standard. Press the "S/L" key to select the Pulse length (LONG or SHORT). The pulse length changes L (Long) and S (Short) alternately. S/L Note: Refer to "5.5.3.8 Increasing the sensitivity (S/L)".

(Select SHORT) or (Select LONG) Set to short pulse Set to long pulse 5.4.21 Switching the screen (SEL WIN) On the PPI+PPI mode display, you need to select an activated screen first for subsequent key operations like range scale, GAIN, STC, FTC, VRM and EBL. For example, you want to change the range scale on the PPI+PPI screen. Press the SEL WIN key to select an active screen. The range scale display will be reversed as a result, showing the screen is active. Press the UP or DOWN key to change the range. Note: Refer to "5.5.4.2 Switching screens on PPI/PPI screen ( SEL WIN )". SEL WIN

(Select right screen) or (Select left screen) Right screen activated Left screen activated 42 5.4.22 Changing the color of screen (PICTURE) The display color can be changed according to daytime or nighttime operations. Press the "PICTURE " key to change the color. Note: Refer to "5.5.4.3 Changing the color of screen (PICTURE)". 5.4.23 Change to PPI screen ( PPI ) Press the "PPI" key to change the screen to the standard single PPI screen. 5.4.24 Change to SEMI3D/PPI screen ( SEMI3D ) Press the "SEMI3D" key to change the screen from other modes to the SEMI3D/PPI screen. Note: All controls, such as EBLs, VRMs are operative on both screens. The ZOOM, OFF-C, FL EBL2, and FL VRM2 could not be used on this mode. On the "SEMI3D" screen, the vertical center index line marked 000 indicates ship's heading direction. 5.4.25 Change to PPI/PPI screen ( PPI/PPI ) Press the "PPI/PPI" key to change the current screen to the PPI/PPI screen. Note:

(1) Each radar picture is refreshed alternately. Right screen picture is held frozen while the left screen is updated, left screen held during the right screen refreshing. Therefore, each screen is updated every 2 antenna revolutions. refreshing radar picture

. 75

.25 HU

PPI screen

.75 .25 HU S

280 320 000 040 080 SEMI3D/PPI screen

.75 .25 HU S 24 6

G 55/35 S 35/AT F 35/AT PPI/PPI screen LEFT screen RIGHT screen ********/---------/********/---------/********/---------/

/---------/********/---------/********/---------/******** time holding previous picture

(2) The ZOOM, OFF-C, FL EBL2, and FL VRM2 are inoperative in this mode.

(3) The range, GAIN, STC, FTC, GZ can be used independently in active display as selected by the "SEL WIN" key.

(4) The cross cursor can be controlled in an active display. 43 5.4.26 Change to PPI/NAV screen ( PPI/NAV ) Press the "PPI/NAV" key to change current screen mode to PPI/NAV

.75 .25 HU s screen mode. Note: The ZOOM, OFF-C, FL EBL2, and FL VRM2 can not be used in this mode. 5.4.27 Change to ALL PPI screen ( ALL PPI ) Press the "ALL PPI" key to change the current screen mode to ALL PPI screen mode. Note:

(1) The range scale, rings interval and the display mode are shown in the upper left corner of the screen.

(2) Return to PPI screen mode pressing a key except MENU, range UP or DOWN, or POWER key. 5.4.28 Change to ALL PPI/PPI screen ( ALL PPI2 ) Press the "ALL PPI2" key, the screen will change to ALL PPI/PPI screen. Use to change the screen from other modes to ALL PPI/PPI. Note:

(1) The range, rings interval, display mode are displayed on the upper left of each screen.

(2) Return to PPI/PPI screen mode pressing a key except MENU, range UP or DOWN, or POWER key.

.75

.25 HU NAV DISPLAY WAY P 123.4 6.8NM COURSE 2.38NM XTE <<<<

267.3 T HDG 12.8KT SPD 20.8 C TEMP DEPTH 58.3M LAT/LON 34 08. 22N 138 02 .53E PPI/NAV screen

ALL PPI screen

.75 .25 HU S

.25 .125

(3) Each radar picture is refreshed alternately. Right screen picture is held frozen while the left screen is updated, and vice versa. The picture update is therefore taking place every 2 antenna revolutions. When your ship navigates at high speed, use the PPI screen mode to allow fast refreshing pictures. ALL PPI/PPI screen 5.4.29 Canceling target tracking (DEL) To cancel tracking, use the DEL (delete) function. The number highlighted on the upper right of the screen will disappear. If ALL DEL (delete all) is selected, the ATA will cancel tracking of all targets. Press the soft key if the DEL function has been set. When operating from the MENU, place the cursor on NAVI/DEL and press the ENT key. When the radar is set to the SY'BY mode, the ATA will cancel tracking of all targets. 5.4.30 Canceling all target tracking (ALL DEL) To cancel tracking all target, use the ALL DEL (All delete) function. The number highlighted on the upper right of the screen will disappear. Press the soft key if the ALL DEL function has been set. When operating from the MENU, place the cursor on NAVI/ALL DEL and press the ENT key. When the radar is set to the SY'BY mode, the ATA will cancel tracking of all targets. 5.4.31 Data display (DATA) When necessary, numerical data of the current tracking target can be displayed in the data display window. Use the DATA function to display the numerical data of the number highlighted on the upper right corner of the screen. Press the soft key if the DATA function has been set. 44 The number of the target currently displayed. Setting time to display vector length. (Speed x Time=vector length) Display mode of vector and data. TRUE and REL represent true and relative speeds, When operating from the MENU, place the cursor on NAVI/DATA and press the ENT key. Items to be displayed are as follows. Target number: TGT NO.x Vector time: TIME xx MIN. Vector mode: TRUE or REL respectively. Target data:

BRG (bearing), DIST (distance), CRS (course), SPD (speed), CPA (closest point of approach) and TCPA (time required for the ship to reach the CPA) State: A collision or lost alarm will appear according to the state of the target. Example:

CPA 12.3NM TCPA 12.3MIN ALM LOST TIME xxMIN 123.4DEG 12.3NM 234.5DEG 10.0KT TGT No.x BRG DIST CRS SPD TRUE

45