FCC ID: K6630053X30 VHF/FM MARINE TRANSCEIVER

 

QUEST+ GX1256S 25 Watt VHF/FM Marine Transceiver Owner's Manual

 Compact and Simple Operation

 Capable of connecting an optional enhanced RAM+ second sta-

tion remote microphone

 RTCM SC-101 DSC Distress call with your exact position

 DSC position request/send function and NMEA data input/out-

put to connect to GPS Plotter

 DSC Group call feature included

 Backlit Keypad and LCD

 Channel Name, GPS Time or GPS Position Repeating shown on the display

 One-button access to Channel 16 and 9

 NOAA Weather Alert

 Versatile User-programmable Scan, Priority Scan and Dual Watch

 Microphone with Channel Selection

 Access to all US, Canadian and International Channels

 3 year waterproof warranty

 with GPS connected GX1256S Page 1 TABLE OF CONTENTS SAFETY/WARNING INFORMATION .......................................................... 4 FCC RADIO LICENSE INFORMATION ...................................................... 5 STATION LICENSE ............................................................................................................................ 5 RADIO CALL SIGN ............................................................................................................................ 5 CANADIAN SHIP STATION LICENSING ......................................................................................... 5 FCC / INDUSTRY CANADA INFORMATION .................................................................................. 5 FCC NOTICE ................................................................................................ 6 GETTING STARTED .................................................................................... 7 ABOUT VHF RADIO .......................................................................................................................... 7 SELECTING ANTENNA ..................................................................................................................... 7 COAXIAL CABLE ............................................................................................................................... 8 1 GENERAL INFORMATION .................................................................... 9 2 PACKING LIST .................................................................................... 10 3 OPTIONS ............................................................................................. 10 4 INSTALLATION .................................................................................... 11 4.1 LOCATION .................................................................................................................................. 11 4.2 ELECTRICAL CONNECTIONS ................................................................................................. 11 4.3 ACCESSORY CABLE ............................................................................................................... 12 4.4 CONNECTION OF GPS WITH NMEA OUTPUT ................................................................. 13 4.5 CHECKING GPS CONNECTION ............................................................................................ 13 4.6 OPTIONAL MMB-84 FLUSH MOUNT INSTALLATION .......................................................... 14 4.7 OPTIONAL CMP25 RAM+ MIC INSTALLATION ................................................................... 15 5 CONTROLS AND INDICATORS ........................................................ 16 5.1 CONTROLS AND CONNECTIONS ......................................................................................... 16 6 BASIC OPERATION ........................................................................... 21 6.1 RECEPTION .............................................................................................................................. 21 6.2 TRANSMISSION ....................................................................................................................... 21 6.3 TRANSMIT TIME-OUT TIMER (TOT) ..................................................................................... 21 6.4 SIMPLEX/DUPLEX CHANNEL USE ....................................................................................... 22 6.5 USA, CANADA, AND INTERNATIONAL MODE ..................................................................... 22 6.6 NOAA WEATHER CHANNELS ............................................................................................... 21 6.7 NOAA WEATHER ALERT ........................................................................................................ 23 6.8 NOAA WEATHER ALERT TESTING ..................................................................................... 23 6.9 EMERGENCY (CHANNEL 16 USE) ...................................................................................... 24 6.10 CALLING ANOTHER VESSEL (CHANNEL 16 OR 9) ....................................................... 24 6.11 MAKING TELEPHONE CALLS ............................................................................................. 25 6.12 OPERATING ON CHANNELS 13 AND 67 ......................................................................... 25 6.13 PROHIBITED COMMUNICATIONS ....................................................................................... 26 6.14 DUAL WATCH (TO CH16) .................................................................................................... 26 6.15 MEMORY SCANNING (M-SCAN) .......................................................................................... 26 6.16 PRIORITY SCANNING (P-SCAN) .......................................................................................... 27 6.17 POSITION INDICATION ......................................................................................................... 27 6.18 TIME INDICATION ................................................................................................................. 28 6.19 RESETTING THE TRANSCEIVERS MICROPROCESSOR ............................................... 28 Page 2 GX1256S TABLE OF CONTENTS 7 DIGITAL SELECTIVE CALLING ........................................................ 29 7.1 GENERAL .................................................................................................................................. 29 7.2 DSC SCAN ............................................................................................................................... 30 7.3 USCG DSC WATCH ................................................................................................................ 31 7.3.1 Maritime Mobile Service Identity (MMSI) ............................................................................ 31 7.3.2 Progamming the MMSI ......................................................................................................... 31 7.4 ADDITIONAL DIGITAL SELECTIVE CALLING INFORMATION ........................................... 32 7.5 DSC DISTRESS CALL ............................................................................................................. 32 7.5.1 Transmitting A DSC Distress Call ........................................................................................ 32 7.5.2 Receiving a distress Call ..................................................................................................... 33 7.5.3 Receiving a distress relay Call ........................................................................................... 34 7.6 ALL SHIP CALL ....................................................................................................................... 34 7.6.1 Transmitting an All Ships Call ............................................................................................. 34 7.6.2 Receiving an All Ships Call ................................................................................................. 35 7.7 INDIVIDUAL CALL .................................................................................................................... 35 7.7.1 Setting up the Individual / Position Call Directory .............................................................. 35 7.7.2 Setting up Individual Reply ................................................................................................... 36 7.7.3 Setting up Individual Call Ringer ........................................................................................ 37 7.7.4 Transmitting an Individual Call ............................................................................................ 37 7.7.5 Receiving an Individual Call ................................................................................................ 38 7.7.6 Setting up the Call Waiting Function .................................................................................. 39 7.8 ADVANCED DSC CALL .......................................................................................................... 40 7.8.1 Group Call ............................................................................................................................. 40 7.8.2 Position Request ................................................................................................................... 42 7.8.3 Position Send ........................................................................................................................ 45 7.8.4 Receiving a geographical area call .................................................................................... 46 8 RADIO SETUP MODE ........................................................................ 47 8.1 LAMP ADJUSTING ................................................................................................................... 47 8.2 LCD CONTRAST ADJUSTING ............................................................................................... 47 8.3 KEY BEEP (ON OR OFF) ........................................................................................................ 48 8.4 WEATHER ALERT (ON OR OFF) ............................................................................................ 48 8.5 CHANNEL NAME CHANGE .................................................................................................... 49 8.6 TIME OFFSET .......................................................................................................................... 50 9 RAM+ MIC OPERATION ..................................................................... 51 9.1 RAM+ MIC CONTROLS .......................................................................................................... 51 9.2 INTERCOM OPERATION ........................................................................................................ 54 9.3 DSC / RADIO SETUP MODE .................................................................................................. 55 10 MAINTENANCE .................................................................................. 56 10.1 REPLACEMENT PARTS ........................................................................................................ 56 10.2 FACTORY SERVICE .............................................................................................................. 57 10.3 TROUBLESHOOTING CHART .............................................................................................. 58 11 CHANNEL ASSIGNMENTS ................................................................ 59 12 WARRANTY ........................................................................................ 65 13 SPECIFICATIONS ............................................................................... 69 GX1256S Page 3 SAFETY / WARNING INFORMATION This radio is restricted to occupational use, work related operations only where the radio operator must have the knowledge to control the exposure conditions of its passengers and bystanders by maintaining the minimum separation distance. The safety distance is determined by the antenna gain. With a 0dBi gain whip antenna the safety distance 0.6 meters (2 feet); with a 3 foot 3dBi gain whip the safety distance is 1.0 meter (3.25 feet) and with an 8 foot 6dBi fiberglass whip the safety distance is 1.2 meters (4 feet). When passengers or bystanders are closer to the antenna than the limits stated the operator must either cease transmitting or restrict operation to low power. Failure to observe these restrictions will result in exceeding the FCC RF exposure limits. Antenna Installation:

The antenna must be located at least 0.6 m (2 feet) away from passengers in order to comply with the FCC RF exposure requirements. The distance given is for a zero gain whip antenna. Use of higher gain antennas will in-

crease this safety distance as discussed above. For roof top installation, the antenna must be placed in the center of the roof. ON-LINE WARRANTY REGISTRATION Please visit www.standardhorizon.com to register the QUEST+ Marine VHF. It should be noted that visiting the Web site from time to time may be beneficial to you, as new products are released they will appear on the STANDARD HORIZON Web site. PRODUCT SUPPORT INQUIRIES If you have any questions or comments regarding the use of the QUEST+, you can visit the STANDARD HORIZON Web site to send an E-Mail or contact the Product Support team at 800-767-2450 M-F 7:00-5:00PST. Page 4 GX1256S FCC RADIO LICENSE INFORMATION Standard Horizon radios comply with the Federal Communication Commis-

sion (FCC) requirements that regulate the Maritime Radio Service. STATION LICENSE An FCC ship station license is no longer required for any vessel traveling in U.S. waters which is under 20 meters in length. However, any vessel re-

quired to carry a marine radio on an international voyage, carrying a HF single side band radiotelephone or marine satellite terminal is required to have a ship station license. FCC license forms, including applications for ship (506) and land station licenses can be downloaded via the Internet at www.fcc.gov/forms. To obtain a form from the FCC, call (888) 225-5322. RADIO CALL SIGN Currently the FCC does not require recreational boaters to have a Ship Radio Station License. The USCG recommends the boats registration number and the state to be used. CANADIAN SHIP STATION LICENSING You may need a license when traveling in Canada. If you do need a license contact their nearest field office or regional office or write:

Industry Canada Radio Regulatory Branch Attn: DOSP 300 Slater Street Ottawa, Ontario Canada, KIA 0C8 FCC/ INDUSTRY CANADA INFORMATION The following data pertaining to the transceiver is necessary to fill out the license application. Type Acceptance ....................................................................... FCC Part 80 Output Power ............................................. 1 Watt (low) and 25 Watts (high) Emission ....................................................................... 16K0G3E, 16K0G2B Frequency Range .................................................. 156.025 to 163.275 MHz FCC Type Number ................................................................. K6630053X30 Industry Canada Type Approval .......................................... 511B-30053X30 GX1256S Page 5 FCC NOTICE NOTICE Unauthorized changes or modifications to this equipment may void com-

pliance with FCC Rules. Any change or modification must be approved in writing by STANDARD HORIZON. NOTICE This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be de-

termined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

- Reorient or relocate the receiving antenna.

- Increase the separation between the equipment and receiver.

- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

- Consult the dealer or an experienced radio/TV technician for help. Page 6 GX1256S GETTING STARTED ABOUT VHF RADIO The radio frequencies used in the VHF marine band lie between 156 and 158 MHz with some shore stations available between 161 and 163 MHz. The marine VHF band provides communications over distances that are essentially line of sight (VHF signals do not travel well through objects such as buildings, hills or trees). Actual transmission range depends much more on antenna type, gain and height than on the power output of the transmitter. On a fixed mount 25W radio transmission expected distances can be greater than 15 miles, for a portable 5W radio transmission the ex-

pected distance can be greater than 5 miles in line of sight. SELECTING AN ANTENNA Marine antennas are made to radiate signals equally in all horizontal direc-

tions, but not straight up. The objective of a marine antenna is to enhance the signal toward the horizon. The degree to which this is accomplished is called the antenna's gain. It is measured in decibels (dBi) and is one of the major factors in choosing an antenna. In terms of effective radiated power

(ERP), antennas are rated on the basis of how much gain they have over a theoretical antenna with zero gain. A 3 foot, 3dBi gain antenna represents twice as much gain over the imaginary antenna. The length of the antenna you choose, however, must also be related to the size of your boat as FCC RF exposure distances are increased with higher gain. Typically a 3 foot 3dBi stainless steel whip is used on a sailboat mast. The longer 8 foot 6dBi fiberglass whip primarily used on larger power boats, that require the additional gain. GX1256S Page 7 COAXIAL CABLE VHF antennas are connected to the transceiver by means of a coaxial cable a shielded transmission line. Coaxial cable is specified by its diameter and construction. For runs less than 20 feet, RG-58/U, about 1/4 inch in diameter is a good choice. For runs over 20 feet but less than 50 feet, the larger RG-8X or RG-

213/U should be used for cable runs over 50 feet RG-8U should be used. For installation of the connector onto the coaxial cable refer to the figure below. 1/16''

3/4''

1 1/8''

Adapter 3/4''

1/8''

3/8''

5/8''

To get your coax cable through a fitting and into your boats interior, you may have to cut off the end plug and reattach it later. You can do this if you follow the directions that come with the connector. Be sure to make good soldered connections. Page 8 GX1256S 1 GENERAL INFORMATION The STANDARD HORIZON QUEST+ is a VHF/FM transceiver designed for use in the frequency range of 156.025 to 163.275 MHz. The GX1256S re-

quires 13.8V for operation and has a switchable RF output power of 1 watt or 25 watts. The transceiver is capable of RTCM SC101 DSC (Digital Selective Calling) operation. The transceiver operates on all currently-allocated marine channels which are switchable for use with either USA, International, or Canadian regula-

tions. It has an emergency channel 16 which can be immediately selected from any channel by pressing the red [16/9] key. NOAA Weather channels can also be accessed immediately by pressing the [WX] key. Other features of the transceiver include: scanning, priority scanning, sub-

mersible mic, high and low voltage warning, and GPS repeatability. GX1256S Page 9 2 PACKING LIST When the package containing the transceiver is first opened, please check it for the following contents:

GX1256S QUEST+ Transceiver (with White/Black Microphone) Mounting Bracket (with attaching hardware and hanger kit) Owners Manual Quick-Reference Card Power Cord Dust Cover 3 OPTIONS MMB-84 ........................................................................ Flush-Mount Bracket CMP25B/W ............ Remote-Access Microphone (RAM+ Mic, Black/White) CT-100 ............................................. 10-foot Extension Cable for RAM+ Mic 101W .................................................................... White Extension Speaker 201SW .................................................................. White Extension Speaker 201SWZ ........................................... White Flush Mount Extension Speaker 201SB .................................................................... Black Extension Speaker 201SBK ............................................ Black Flush Mount Extension Speaker Page 10 GX1256S 4 INSTALLATION 4.1 LOCATION The radio can be mounted at any angle. Choose a mounting location that:

is far enough from any compass to avoid any deviation in compass reading due to the speaker magnet provides accessibility to the front panel controls allows connection to a power source and an antenna has nearby space for installation of a microphone hanger the antenna must be mounted at least 3 feet from radio The FCC RF exposure label should be visible to the operator in the installed position. If not then a self adhesive panel label can be obtained from your Standard Horizon Dealer, by calling (800) 767-2450, or by e-mailing marinetech@vxstdusa.com 4.2 ELECTRICAL CONNECTIONS CAUTION Reverse polarity connections will damage the radio!

Connect the power cord and antenna to the radio. Antenna and Power Sup-

ply connections are as follows (see Figure 1):

Antenna Optional Speaker Water proof Deck Outlet Fuse Accessory Cable Red Black Power Source GPS Navigation Receiver Figure 1. General Installation 1. Mount the antenna at least 3 feet away from the radio. At the rear of the radio, connect the antenna cable. It must have a PL259 connector. RG-

8/U coaxial cable must be used if the antenna is 25 feet or more from the radio. RG58 cable can be used for distances less than 25 feet. 2. Connect the red power wire to a 13.8 VDC 20% power source. Connect 3. 4. the black power wire to a negative ground. If an optional remote extension speaker is to be used, refer to section 4.3 for connections. It is advisable to have a Certified Marine Technician check the power output and the standing wave ratio of the antenna after installation. GX1256S Page 11 4.3 ACCESSORY CABLE White: External speaker (+) Shield: External speaker () Blue: NMEA IN (+) from GPS navigation receiver Green: NMEA common Gray: NMEA OUT (+) to GPS navigation receiver Brown: Test port (for the Service Technican) When connecting the external speaker or GPS navigation receiver, strip off about 1 inch (2.5 cm) of the specified wires insulation, then splice the ends together. Blue Green Brown Gray Green Blue Shield White External Speaker Wire Color/Description WHITE - External Speaker (+) SHIELD - External Speaker () GREEN - NMEA Ground BLUE- NMEA Input (+) GRAY- NMEA Output (+) Connection Examples Connect to external 4 Ohm audio speaker Connect to external 4 Ohm audio speaker Connect to NMEA () connection of GPS Connect to NMEA (+) output of GPS Connect to NMEA (+) input of GPS Page 12 GX1256S 4.4 CONNECTION OF GPS WITH NMEA OUTPUT QUEST+

Manufacturer/Model Green Lowrance Portable Wires Orange Black (GND) Manufacturer/Model STANDARD HORIZON Furuno GP30, 36 Furuno GP1650, 1850 Garmin Fixed Mounts Wires Green Blue Brown White Blue White Black Blue Black (GND) Garmin Portables Brown Black (GND) JRC GPS500 JRC 100 SERIES JRC 200 SERIES Lowrance Fixed Mount Yellow Green Green Black White Black White Gray Blue Blue Green Blue Green Blue Green Blue Green Blue Green Blue Green Blue Green Blue Magellan Fixed Mount Gray Magellan Portable Orange Black (GND) Northstar Raytheon 420 Raytheon 520 / 620 Raytheon RL SERIES Simrad Sitex Neptune, Nautilus Black (GND) Yellow Black (GND) Yellow Brown Blue Brown White Brown White Brown Gray Brown QUEST+

Blue Green Blue Green Blue Green Blue Green Blue Green Blue Green Blue Green Blue Green Blue Green Black (GND) Green Additional Information:

The GPS must have the NMEA Output turned on and set to 4800 Baud in the setup menu. If there is a selection for parity select none. For further information on interfacing /setting up your GPS. Please con-

tact the manufacturer of the GPS receiver. QUEST+ is corresponded with following NMEA sentence:

NMEA-0183 version 2.0 or higher GLL, GGA, RMC and GNS (RMC sentence is recommended) If you have further inquires, please feel free to contact us at:

Phone: (800) 767-2450 Web site: standardhorizon.com Email: marinetech@vxstdusa.com 4.5 CHECKING GPS CONNECTION After connections have been made between the QUEST+ and the GPS, a small satellite icon will appear on the top right corner of the LCD display. To see additional GPS information press and hold the [H/L(POS)] key until the QUEST+ shows the Latitude and Longitude. The QUEST+ may be setup to show Lat/Lon or time received from a connected GPS. To setup and show time refer to Section 6.18. NOTE GX1256S Page 13 4.6 OPTIONAL MMB-84 FLUSH MOUNT INSTALLATION 1. Make a rectangular template for the flush mount measuring 2 H x 5-5/16 W. 2. Use the template to mark the location where the rectangular hole is to be cut. Confirm the space behind the dash or panel is deep enough to ac-

commodate the transceiver (at least 6 inches deep). There should be at least 1/2 inch between the transceivers heatsink and any wiring, cables or structures. 3. Cut out the rectangular hole and insert the transceiver. 4. Fasten the brackets to the sides of the transceiver with the lock washer nut combination, so that the mounting screw base faces the mounting surface (see Figure 2). 5. Turn the adjusting screw to adjust the tension so that the transceiver is tight against the mounting surface. 6. Fix self-adhesive FCC Exposure Label supplied with MMB-84 kit on the panel next to the transceiver where it can clearly seen by the operator. Bracket Adjusting Screw Lock-washer nut combination Figure 2. MMB-84 Flush Mount Instllation Page 14 GX1256S 4.7 OPTIONAL CMP25 RAM+ MIC INSTALLATION 1. Connect the RAM+ MIC Cable to the RAM MIC CONNECTOR on the rear panel, then tighten the Cable Nut (See Figure 3). 2. Referring to Figure 3, make a 1.2 (30 mm) hole in the wall, then insert the RAM+ MIC Cable into this hole. Connect the Gasket and Mount Base to the RAM+ MIC Cable Connector using the Nut. 3. Drill the four Screw holes (approx. 2 mm) on the wall, then install the Mounting Base to the wall using four screws. 4. Put the Rubber Cap on to the Nut. The installation is now completed. Wall Gasket Cap RAM MIC Cable Nut Figure 3. RAM+ MIC Installation GX1256S Page 15 5 CONTROLS AND INDICATORS NOTE This section defines each control of the transceiver. See Figure 4 for location of controls. For detailed operating instructions refer to chapter 6 of this manual. 5.1 CONTROLS AND CONNECTIONS POWER SWITCH/VOLUME CONTROL Turns the transceiver on and off as well as adjusts the audio volume. To turn the transceiver on press and hold this knob until the LCD turns on. To turn it off, press and hold this knob until the LCD turns off. When the power is turned on, the transceiver is set to the last selected channel. Secondary Use When the transceiver is turned on while the [SCAN(MEM)] and [WX]

keys are held down, the internal microprocessor is reset. This clears the memory and all user-programmed settings, such as scan memory. This condition is known as the default condition, the same as when shipped from the factory. For a list of these defaults, see the section on Resetting the Transceivers Microprocessor. NOTE Resetting the microprocessor will not erase DSC MMSI and Direc-

tory Call information. SQUELCH CONTROL (SQL) Sets the point at which random noise on the channel does not activate the audio circuits but a received signal does. This point is called the squelch threshold. Further adjustment of the squelch control will degrade reception of wanted transmissions. KEYPAD

[16/9] Key Immediately recalls channel 16 from any channel location. Holding down this key recalls channel 9. Pressing the [16/9] key again reverts to the previous selected working channel. Secondary use Please see secondary use for the [WX] key. Page 16 GX1256S Figure 4. Controls and Connectors GX1256S Page 17

[WX] Key Immediately recalls the previously selected NOAA weather channel from any channel location. Secondary use 1. Holding down the [16/9] key while pressing the [WX] key changes the mode from USA to International or Canadian. 2. Holding down the [WX] and [SCAN(MEM)] key while turning the power on resets the microprocessor and erases scan channels from memory. This clears the memory and establishes the factory-set defaults. For a list of these defaults, see the section on Resetting the Transceivers Microprocessor.

[DW(IC)] Key Watches for a transmission on CH16 and another selected channel until either signal is received. (Dual watch) NOTE: When the DSC SCANNING feature is enabled(see section 7.10 DSC SCANNING), the radio watches for a transmission on CH16, an-

other selected channel, and CH70 until either signal is received (Triple watch). Secondary use Press and hold [DW(IC)] key, when the optional RAM+ Mic is connected, intercom operation will operate between radio and RAM+ Mic.

[H/L(POS)] Key Toggles between high and low power. When the [H/L(POS)] key is pressed while the transceiver is on channel 13 or 67, the power will temporarily switch from LO to HI power until the PTT is released. The [H/L(POS)]

key does not function on transmit inhibited and low power only channels. Secondary use Press and hold the [H/L(POS)] key to display the Position Data on the LCD, when connected to the GPS receiver.

[SCAN(MEM)] Key 1. Starts and stops scanning of programmed channels. 2. If held while the [UP] or [DOWN] key on the microphone are pressed or [UP] or [DOWN] key on radio are pressed, the radio will show the channels programmed in scan memory. This function will not work if the unit is scanning. NOTE: The priority channel is channel 16 only. Page 18 GX1256S

[CALL/SET(MENU)] Key The [CALL/SET(MENU)] key functions as the enter key. Secondary use Press the [CALL/SET(MENU)] key to access the DSC OPERATION menu. The INDIVIDUAL and ALL SHIPS CALLS functions can be ac-

cessed from the DSC OPERATION menu. Press and hold the [CALL/SET(MENU)] key to access the RADIO or DSC setup menu. The following functions can be accessed in the menu. RADIO SETUP MENU DSC SETUP MENU

[DISTRESS] Key Used to send a DSC Distress Call. To send the distress call see section 6.2 (Sending a Distress Call).

[UP] and [DOWN] Keys The [UP] and [DOWN] keys are used to select a desired channel and to select items in the DSC OPERATION and SETUP menus. The [UP] or

[DOWN] key on the microphone can also be used to select channels. GX1256S Page 19 RAM MIC CONNECTOR Connects the QUEST+ to the enhanced RAM+ MIC (Remote Access Microphone). Refer to section 9 RAM+ MIC OPERATION. ACCESSORY CONNECTION CABLE Connects the radio to a GPS, and an external speaker. DC INPUT CABLE Connects the radio to a DC power supply of 13.8V ANTENNA JACK Connects an antenna to the transceiver. Use a marine VHF antenna with an impedance of 50 ohms. PTT (Push-To-Talk) SWITCH Keys the transmitter. MICROPHONE Transmits the voice message with reduction of background noise.

[UP()] and [DOWN()] KEYS The [UP()] and [DOWN()] on the microphone function the same as the [UP] and [DOWN] key on the front panel of the transceiver.

[16/9] Key Pressing the [16/9] key Immediately recalls channel 16 from any loca-

tion. Press and hold the [16/9] key to recall channel 9. Pressing the

[16/9] key again will revert the radio to the last channel selected. Page 20 GX1256S 6 BASIC OPERATION 6.1 RECEPTION 1. After the transceiver has been installed, ensure that the power supply and antenna are properly connected. 2. Press and hold the VOL/PWR knob until the radio turns on. 3. Turn the SQL knob fully counterclockwise. This state is known as squelch off. 4. Turn up the VOL/PWR knob until noise or audio from the speaker is at a comfortable level. 5. Turn the SQL knob clockwise until the random noise disappears. This state is known as the squelch threshold. 6. Press the [UP] or [DOWN] key to select the desired channel. Refer to the channel chart on page 60 for available channels. 7. When a message is received, adjust the volume to the desired listening level. The BUSY indicator in the LCD is displayed indicating that the channel is being used. 6.2 TRANSMISSION 1. Perform steps 1 through 6 of RECEPTION. 2. Before transmitting, monitor the channel to ensure it is clear. THIS IS AN FCC REQUIREMENT!

3. Press the PTT (push-to-talk) switch. The TX indicator on the LCD is dis-

played. 4. Speak slowly and clearly into the microphone. 5. When the transmission is finished, release the PTT switch. NOTE This is a noise-canceling microphone. The oval slot on the bottom of microphone should be positioned within 1 inch (2.5 cm) from the mouth for optimum performance. 6.3 TRANSMIT TIME - OUT TIMER (TOT) When the PTT switch on the microphone is held down, transmit time is limited to 5 minutes. This limits unintentional transmissions due to a stuck micro-

phone. About 10 seconds before automatic transmitter shutdown, a warning beep will be heard from the speaker(s). The transceiver will automatically go to receive mode, even if the PTT switch is continually held down. Before trans-

mitting again, the PTT switch must first be released and then pressed again. GX1256S Page 21 6.4 SIMPLEX/DUPLEX CHANNEL USE Refer to the VHF MARINE CHANNEL CHART (page 60) for instructions on use of simplex and duplex channels. NOTE All channels are factory-programmed in accordance with FCC (USA), Industry Canada (Canada), and International regulations. Mode of op-

eration cannot be altered from simplex to duplex or vice-versa. 6.5 USA, CANADA, AND INTERNATIONAL MODE 1. To change the modes, hold the [16/9] key and press the [WX] key. The mode changes from USA to International to Canadian with each press of the [WX] key. U will be displayed on the LCD for USA mode, I will be displayed for International mode, and C will be displayed for Canadian mode. 2. 3. Refer to the VHF MARINE CHANNEL CHART (page 60) for allocated channels in each mode. 6.6 NOAA WEATHER CHANNELS 1. To receive a NOAA weather channel, press the [WX] key from any chan-

nel. The transceiver will go to the last selected weather channel. 2. Press the [UP] or [DOWN] key on the microphone or on front panel to select a different NOAA weather channel. 3. To exit from the NOAA weather channels, press the [WX] key. The trans-

ceiver returns to the channel it was on prior to a weather channel. Page 22 GX1256S 6.7 NOAA WEATHER ALERT In the event of extreme weather disturbances, such as storms and hurri-

canes, the NOAA (National Oceanic and Atmospheric Administration) sends a weather alert accompanied by a 1050 Hz tone and subsequent weather report on one of the NOAA weather channels. When the Weather Aleart feature is enabled (see section 8.4 WEATER ALERT), the transceiver is capable of receiving this alert if the following is performed:

1. Program NOAA weather channels into the transceivers memory for scan-

ning. Follow the same procedure as for regular channels under Section 6.15. 2. Press the [SCAN(MEM)] key once to start memory scanning or hold down the [SCAN(MEM)] key during memory scanning to start priority scanning. 3. The programmed NOAA weather channels will be scanned along with the regular-programmed channels. However, scanning will not stop on a normal weather broadcast unless a NOAA alert is received. 4. When an alert is received on a NOAA weather channel, scanning will stop and the transceiver will emit a loud beep to alert the user of a NOAA broadcast. 5. Press the [WX] key to stop the alert tone and receive the weather report. If the [WX] key is not pressed the alert tone will be emitted for 5 minutes and then the weather report will be received. NOTE The Weather Aleart feature is also engaged while the transceiver is received on the one of the NOAA weather channel. NOTE 6.8 NOAA WEATHER ALERT TESTING In the event of a major storm or other appreciable weather condition requir-

ing vessels at sea or other bodies of water to be notified, the NOAA (Na-

tional Oceanographic and Atmospheric Administration) broadcasts a 1050 Hz tone that some marine VHF radios can detect. (Refer to above section NOAA WEATER ALERT on how to use this feature.) This tone, when de-

tected, will produce a loud beep from the radio speaker to signal that a weather alert is being broadcast. In order to test this system, the NOAA broadcasts the 1050 Hz tone every Wednesday, sometime between 11 AM and 1 PM. GX1256S Page 23 6.9 EMERGENCY (CHANNEL 16 USE) Channel 16 is known as the Hail and Distress Channel. An emergency may be defined as a threat to life or property. In such instances, be sure the transceiver is on and set to CHANNEL 16. Then use the following procedure:

1. Press the microphone push-to-talk switch and say Mayday, Mayday, Mayday. This is , , (your vessels name). 2. Then repeat once: Mayday, (your vessels name). 3. Now report your position in latitude/longitude, or by giving a true or mag-

netic bearing (state which) to a well-known landmark such as a naviga-

tion aid or geographic feature such as an island or harbor entry. 4. Explain the nature of your distress (sinking, collision, aground, fire, heart attack, life-threatening injury, etc.). 5. State the kind of assistance your desire (pumps, medical aid, etc.). 6. Report the number of persons aboard and condition of any injured. 7. Estimate the present seaworthiness and condition of your vessel. 8. Give your vessels description: length, design (power or sail), color and other distinguishing marks. The total transmission should not exceed 1 minute. 9. End the message by saying OVER. Release the microphone button and listen. 10. If there is no answer, repeat the above procedure. If there is still no response, try another channel. 6.10 CALLING ANOTHER VESSEL (CHANNEL 16 OR 9) Channel 16 may be used for initial contact (hailing) with another vessel. However, its most important use is for emergency messages. This channel must be monitored at all times except when actually using another channel. It is monitored by the U.S. and Canadian Coast Guards and by other ves-

sels. Use of channel 16 for hailing must be limited to initial contact only. Calling should not exceed 30 seconds, but may be repeated 3 times at 2-minute intervals. In areas of heavy radio traffic, congestion on channel 16 resulting from its use as a hailing channel can be reduced significantly in U.S. waters by using channel 9 as the initial contact (hailing) channel for non-emergency communications. Here, also, calling time should not exceed 30 seconds but may be repeated 3 times at 2-minute intervals. Prior to making contact with another vessel, refer to the channel charts in this manual, and select an appropriate channel for communications after initial contact. For example, Channels 68 and 69 of the U.S. VHF Charts are Page 24 GX1256S some of the channels available to non-commercial (recreational) boaters. Monitor your desired channel in advance to make sure you will not be inter-

rupting other traffic, and then go back to either channel 16 or 9 for your initial contact. When the hailing channel (16 or 9) is clear, state the name of the other vessel you wish to call and then this is followed by the name of your vessel and your Station License (Call Sign). When the other vessel returns your call, immediately request another channel by saying go to, the num-

ber of the other channel, and over. Then switch to the new channel. When the new channel is not busy, call the other vessel. After a transmission, say over, and release the microphones push-to-talk

(PTT) switch. When all communication with the other vessel is completed, end the last transmission by stating your Call Sign and the word out. Note that it is not necessary to state your Call Sign with each transmission, only at the beginning and end of the contact. Remember to return to Channel 16 when not using another channel. 6.11 MAKING TELEPHONE CALLS To make a radiotelephone call, use a channel designated for this purpose, The fastest way to learn which channels are used for radiotelephone traffic is to ask at a local marina. Channels available for such traffic are designated Public Correspondence channels on the channel charts in this manual. Some examples for USA use are Channels 24, 25, 26, 27, 28, 84, 85, 86, and 87. Call the marine operator and identify yourself by your vessels name, The marine operator will then ask you how you will pay for the call (tele-

phone credit card, collect, etc.) and then link your radio transmission to the telephone lines. The marine telephone company managing the VHF channel you are using may charge a link-up fee in addition to the cost of the call. 6.12 OPERATING ON CHANNELS 13 AND 67 Channel 13 is used at docks and bridges and by vessels maneuvering in port. Messages on this channel must concern navigation only, such as meet-

ing and passing in restricted waters. Channel 67 is used for navigational traffic between vessels. By regulation, power is normally limited to 1 Watt on these channels. Your GX1256S Page 25 radio is programmed to automatically reduce power to this limit on these channels. However, in certain situations it may be necessary to temporarily use a higher power. See page 18 ([H/L(POS)] key) for means to temporarily override the low-power limit on these two channels. 6.13 PROHIBITED COMMUNICATIONS The FCC prohibits the following communications:

False distress or emergency messages:

Messages to any boat except in emergencies and radio tests;

Messages to or from a vessel on land;

Transmission while on land;

Obscene, indecent, or profane language (potential fine of $10,000). 6.14 DUAL WATCH (TO CH16) 1. Adjust the SQL knob until the background noise disappears. 2. Select the channel you wish to dual watch to Ch16. 3. Press the [DW(IC)] key. The display will scan between CH16 and the channel that was selected in step 2. If a transmission is received on the channel selected in step 2, the QUEST+ will dual watch to Ch16. 4. To stop Dual Watch press the [DW(IC)] key again. 6.15 MEMORY SCANNING (M-SCAN) NOTE During scanning, the dot matrix area of the LCD will show M-SCAN or P-SCAN depending on the scan mode selected. If GPS position is displayed this icon will be hidden. 1. Adjust the SQL knob until background noise disappears. 2. Select a desired channel to be scanned using the [UP] or [DOWN] key. Press and hold the [SCAN(MEM)] key, MEM will ap-

pear on the LCD which indicates the channel has been programmed into the transceivers memory. 3. Repeat step 2 for all the desired channels to be scanned. 4. To DELETE a channel from the transceivers memory, press and hold the [SCAN(MEM)] key, MEM will disappear in the LCD. 5. To start scanning, press the [SCAN(MEM)] key. Scan-

ning will proceed from the lowest to the highest pro-

grammed channel number and will stop on a channel when a transmission is received. Page 26 GX1256S 6. The channel number will blink during reception. 7. To stop scanning, press the [SCAN(MEM)], [16/9], [WX], or PTT key. 6.16 PRIORITY SCANNING (P-SCAN) 1. The priority channel is set to channel 16. 2. For priority scanning during M-SCAN, press and hold the [SCAN(MEM)] key, until P-SCAN appears in the LCD. Scanning will proceed between the memorized chan-

nels and the priority channel. The priority channel will be scanned after each programmed channel. MEM CH. CH. 16

CH. 70 MEM CH. CH. 16

CH. 70

: When DSC Scanning method is enabled. Default is DSC scan is ON. 3. The scanning will be performed while receiving the MEM CH (memorized channel). 4. To stop scanning, press the [SCAN(MEM)], [16/9], [WX], or PTT key. NOTE Triple watch (T/W) means the radio is watching CH70 for DSC Calls. Dual watch (D/W) means the radio is not watching CH70 for DSC Calls. 6.17 POSITION INDICATION The transceiver has the ability to display the vessels position (LAT/LON) for Confirmation of the data, if connected to a GPS receiver. 1. Press and hold the [H/L(POS)] key, dis-

plays LAT and LON information al-

ternately every two seconds. If the GPS receiver receives no signal, the display will be as shown in the illus-

tration.

(Longitude)

(Latitude) 2. To hide the position information, press and hold the

[H/L(POS)] key again.

(No GPS Signal) GX1256S Page 27 6.18 TIME INDICATION Press and hold the [16/9] and [H/L(POS)] keys while turn-

ing the transceiver on, the transceiver will display the TIME on the upper side, if connected to a GPS receiver. NOTE The TIME OFFSET should be set to local time in the DSC/RADIO setup mode when the radio is connected the GPS navigation receiver. To ad-

just TIME OFFSET to your local time, refer to section 7.6 TIME OFF-

SET. 6.19 RESETTING THE TRANSCEIVERS MICROPROCESSOR Resetting the microprocessor restores the initial, factory supplied conditions in the transceiver. These are called the default conditions. To reset the microprocessor, first turn the transceiver off. Then while press-

ing the [WX] and [SCAN(MEM)] keys, turn the transceiver on. The default conditions are:

No channels in SCAN memory. Channel 16 will be selected when the transceiver is turned on. WX channel 01 will be recalled when the [WX] key is pressed. Key beep will be on. Resetting the microprocessor will not erase DSC MMSI and Directory information. NOTE Page 28 GX1256S 7 DIGITAL SELECTIVE CALLING 7.1 GENERAL WARNING This radio is designed to generate a digital maritime distress and safety call to facilitate search and rescue. To be effective as a safety device, this equipment must be used only within communication range of a shore-

based VHF marine channel 70 distress and safety watch system. The range of signal may vary but under normal conditions should be ap-

proximately 20 nautical miles. Digital Selective Calling is a semi-automated method of establishing a radio call, it has been designated by the International Maritime Organization (IMO) as an international standard for establishing VHF, MF and HF radio calls. It had also been designated as part of the Global Maritime Distress and Safety System (GMDSS). It is planned that DSC will eventually replace aural watches on distress frequencies and will be used to announce routine and urgent maritime safety information broadcasts. This new system will allow mariners to instantly send a distress call with GPS position (when connected to the transceiver) to the US Coast Guard and other vessels within range of the transmission. DSC will also allow mari-

ners to initiate or receive distress, urgency, safety routine, POS Request, POS Send and Group calls to or from another vessel equipped with a DSC transceiver. WARNING STICKER A DSC Warning sticker is in-

cluded with the QUEST+. To comply with FCC regula-

tions this sticker must be mounted in a location that can be easily viewed from the location of the QUEST+. Make sure the chosen loca-

tion is clean and dry before applying the sticker. WARNING STICKER W X DW CAL L S E T SCAN H/ L GX1256S Page 29 7.2 DSC SCAN When the radio is shipped from the factory it is programmed so CH70 (the DSC channel) is scanned at all times. There is a selection in the SETUP MENU to disable the DSC SCAN. However, turning off DSC SCAN will dis-

able the radio from receiving DSC calls i.e.: Individual Call, All Ships Call, Distress Call and Position Requests. If you want to use any of the functions the selection must be left ON. To Change DSC SCAN Method:

1. Press and hold down the [CALL/SET(MENU)] key until RADIO SETUP appears. 2. Press the [DOWN] key to select DSC SETUP. 3. Press the [CALL/SET(MENU)] key, then press the [UP]

or [DOWN] key to select DSC SCAN. 4. Press the [CALL/SET(MENU)] key to enable setting this item (The number in the display will flash). 5. Press the [UP] or [DOWN] key to select on or oF (off). 6. Press the [CALL/SET(MENU)] key to store the selected setting. 7. Press the [UP] or [DOWN] key to select EXIT, then press the [CALL/SET(MENU)] key. 8. Press the [UP] or [DOWN] key to select EXIT, then press the [CALL/SET(MENU)] key to return to the nor-

mal operation. Page 30 GX1256S 7.3 USCG DSC WATCH The USCG has plans to upgrade its VHF National Distress System (expected by 2005), so at the time of printing only larger vessels that are required to carry VHF DSC radios will be able to hear your distress transmission. 7.3.1 Maritime Mobile Service Identity (MMSI) What is an MMSI?

An MMSI is a nine digit number used on Marine Transceivers capable of using Digital Selective Calling (DSC). This number is used like a telephone number to selectively call other vessels. NOTE THIS NUMBER MUST BE PROGRAMMED INTO THE RADIO TO OP-

ERATE THE QUEST+ DSC FUCTIONS. How can I obtain an MMSI assignment?

Boat US offers free MMSI numbers. Visit the following to register:

http://www.boatus.com/mmsi/. 7.3.2 Programming the MMSI NOTE User MMSI can be input only twice. If the user tries to input MMSI more than twice, the radio will show the display on the right. If the user needs to change the MMSI more than twice, the transceiver will have to be sent to Factory Service. Refer to the section 10.2 FACTORY SERVICE. 1. Press and hold down the [CALL/SET(MENU)] key until RADIO SETUP appears. 2. Press the [DOWN] key to select DSC SET. 3. Press the [CALL/SET(MENU)] key, then press the

[DOWN] key to select USER MMSI. 4. Press the [CALL/SET(MENU)] key to enable setting this item (The number in the display will flash). 5. Press the [UP] or [DOWN] key to select first number of your MMSI, then press the [CALL/SET(MENU)] key to define the setting. 6. Repeat above step to set your MMSI (up to 9 digits). When the last number of your MMSI is in place, press and hold the [CALL/SET(MENU)] key to store your MMSI. GX1256S Page 31 7. Press the [DOWN] key to select EXIT, then press the

[CALL/SET(MENU)] key. 8. Press the [UP] or [DOWN] key to select EXIT, then press the [CALL/SET(MENU)] key to return to the nor-

mal operation. 7.4 ADDITIONAL DIGITAL SELECTIVE CALLING INFORMATION For additional information the USCG has an excellent site that should be visited at www.navcen.uscg.mil/marcoms/gmdss/dsc.html. 7.5 DSC DISTRESS CALL The QUEST+ is capable of transmitting and receiving DSC Distress mes-

sages to all DSC radios. The QUEST+ may be connected to a GPS to also transmit the Latitude, Longitude of the vessel. 7.5.1 Transmitting A DSC Distress Call NOTE To be able to transmit a DSC distress call a MMSI number must be programmed, refer to section 7.3.2 Programming the MMSI In order for your ships location to be transmitted a GPS must be connected to the QUEST+, refer to section 4.4 CONNECTION OF GPS WITH NMEA OUTPUT. 1. Lift the red spring loaded DISTRESS cover and press the [DISTRESS] key. The DISTRESS will appear on the LCD. 2. Press and hold the [DISTRESS] key. The LCD will count down (3, 2, 1) following this the QUEST+ will transmit the Distress Call. 3. When the distress signal is sent, the TX icon will ap-

pear on the LCD. After the message has been sent, the Distress Alarm will sound. 4. The transceiver shadow-watches for a transmission between CH16 and CH70 until an acknowledgment sig-

nal is received. RECEIVED ACK will scroll on the LCD. Page 32 GX1256S 5. If no acknowledgment is received, the distress call is repeated in 3.5 to 4.5 minute intervals until an acknowledgment is received. 6. To cancel a Distress Call 1) Press the [16/9] key 2) Press the [WX] key 3) Turn off the radio 4) Press the [DISTRESS] key, then press the [UP] or [DOWN] key until CANCEL is shown on the LCD. Press the [CALL/SET(MENU)] key. 7. When a distress acknowledgment is received, a distress alarm sounds and channel 16 is automatically selected. 8. To cancel the alarm, press any key. NOTE If the radio is receiving on a working channel or transmitting on a work-

ing channel, DSC calls will not be received. 7.5.2 Receiving a distress call 1. A distress call is received. RECEIVED DISTRESS will appear on the LCD, and an emergency alarm will be heard. Channel 16 is automatically selected. 2. Press any key to stop the alarm. 3. Press the [UP] or [DOWN] key to select the receiving distress data:

MMSI or Station Name Latitude TIME (UTC) Longitude NOTE If the received distress data does not include the position data, NO POSITION DATA will scroll on the LCD. You must continue monitoring channel 16 as a coast station may re-

quire assistance in any rescue attempt. GX1256S Page 33 7.5.3 Receiving a distress relay call 1. A distress relay call is received. RECEIVED RLY will appear on the LCD, and an emergency alarm will be heard. Channel 16 is automatically selected. 2. Press any key to stop the alarm. 3. Press the [DOWN] key to appear the receiving distress data (MMSI or Station Name). You must continue monitoring channel 16 as a coast station may re-

quire assistance in any rescue attempt. NOTE 7.6 ALL SHIPS CALL The All Ships Call function allows contact to be established with other vessel stations without having their ID in the individual calling directory. Also, priority for the call can be designated as Urgency, Safety or Routine. URGENCY Call: This type of call is used when a vessel may not truly be in distress, but have a potential problem that may lead to a distress situation (PAN, PAN,Call Type). SAFETY Call: Used to transmit boating safety information to other ves-

sels (Security Call Type). This message usually contains information about an overdue boat, debris in the water. Loss of a navigation aid or an important meteorological message. 7.6.1 Transmitting An All Ships Call 1. Select the traffic channel (for voice communication). 2. Press the [CALL/SET(MENU)] key. 3. Press the [DOWN] key to select ALL SHIPS. 4. Press the [CALL/SET(MENU)] key again. 5. Press the [DOWN] key to select the nature of call (UR-

GENCY, or SAFETY). 6. Press the [CALL/SET(MENU)] key to transmit the se-

lected type of ALL SHIPS DSC call. 7. After the ALL SHIPS CALL is transmitted, the transceiver will wait on CH16. Call has been transmited. Page 34 GX1256S 7.6.2 Receiving An All Ships Call 1. An all ships call is received. RECEIVED ALL SHIPS will appear on the LCD, and an emergency alarm will be heard. Channel 16 is automatically selected. 2. Press any key to stop the alarm. 3. Press the [UP] or [DOWN] key to select the receiving distress data:

MMSI or Station Name 4. Monitor channel 16 or traffic channel until the communi-

cation is completed. 7.7 INDIVIDUAL CALL This feature allows the user to contact another user vessel with a DSC radio and automatically switch the receiving DSC radio to a desired working chan-

nel. This feature is similar to calling a vessel on CH16 and requesting to go to a another channel. 7.7.1 Setting up the Individual / Position Call Directory The QUEST+ has a DSC directory that allows you to store a vessel or per-

son names and the MMSI number associated with vessels you wish to trans-

mit Individual calls, Position Requests and Position Send transmissions. To transmit an Individual call you must program this directory with informa-

tion of the persons you wish to call, similar to a cellular phones telephone directory. 1. Press and hold down the [CALL/

SET(MENU)] key until RADIO SETUP appears. 2. Press the [DOWN] key to select DSC SETUP. 3. Press the [CALL/SET(MENU)] key to select INDIVIDUAL DIRECTORY. 4. Press the [CALL/SET(MENU)] key to select ADD. 5. Press the [CALL/SET(MENU)] key to enable setting this item. 6. Press the [UP] or [DOWN] key to select a first character of the Station Name, then press the [CALL/SET(MENU)]

GX1256S Page 35 key to move to next character. 7. Repeat step 6 as many times as necessary to complete the Station Name (up to 12 characters). 8. Press and hold the [CALL/SET(MENU)] key to store the Station Name and enable setting the MMSI ID code. 9. Press the [UP] or [DOWN] key to select the first digit of the MMSI ID code, the press the [CALL/SET(MENU)]

key to move to next character. 10. Repeat step 9 as many times as necessary to complete the MMSI ID code (9 digits). 11. Press and hold the [CALL/SET(MENU)] key to store the MMSI ID code. 12. Press the [DOWN] key to select EXIT, then press the

[CALL/SET(MENU)] key. 13. Press the UP or [DOWN] key to select EXIT, then press the [CALL/SET(MENU)] key to return to the normal op-

eration. 7.7.2 Setting up Individual Reply Allows setting up the radio to automatically (default setting) or manually respond to a DSC Individual call requesting you to switch to a working chan-

nel for voice communications. When Manual is selected the MMSI of the calling vessel is shown allowing you to see who is calling. This function is similar to caller id on a cellular phone. 1. Press and hold down the [CALL/SET(MENU)] key until RADIO SETUP appears. 2. Press the[DOWN] key to select DSC SETUP. 3. Press the [CALL/SET(MENU)] key, then press the [UP] or [DOWN] key to select INDIVIDUAL REPLY. 4. Press the [CALL/SET(MENU)] key to enable setting this item. 5. Press the [UP] or [DOWN] key to select AU (Automatic) or oF (off). 6. Press the [CALL/SET(MENU)] key to store the selected setting. 7. Press the [UP] or [DOWN] key to select EXIT, then Page 36 GX1256S press the [CALL/SET(MENU)] key. 8. Press the [UP] or [DOWN] key to select EXIT, then press the [CALL/SET(MENU)] key to return to the nor-

mal operation. 7.7.3 Setting up Individual Call Ringer When a Individual call is received the radio will produce a ringing tone for 3 minutes. This selection allows the Individual Call ringer time to be changed. 1. Press and hold down the [CALL/SET(MENU)] key until RADIO SETUP appears. 2. Press the [DOWN] key to select DSC SETUP. 3. Press the [CALL/SET(MENU)] key, then press the [UP]

or [DOWN] key to select INDIVIDUAL RINGER. 4. Press the [CALL/SET(MENU)] key to enable setting this item. 5. Press the [UP] or [DOWN] key to select ringing time of a INDIVIDUAL CALL. 4: 3 minutes continuously 3: 15 times 2: 10 times 1: 5 times 6. Press the [CALL/SET(MENU)] key to store the selected ringing time. 7. Press the [UP] or [DOWN] key to select EXIT, then press the [CALL/SET(MENU)] key. 8. Press the [UP] or [DOWN] key to select EXIT, then press the [CALL/SET(MENU)] key to return to the nor-

mal operation. 7.7.4 Transmitting an Individual Call This feature allows the user to contact another vessel with a DSC radio. This feature is similar to calling a vessel on CH16 and requesting to go to an-

other channel. Select the traffic channel for voice communication. 1. Select the traffic channel for voice communication. 2. Press the [CALL/SET(MENU)] key. 3. Press the [CALL/SET(MENU)] key again. The individual address will appear. 4. Press the [UP] or [DOWN] key to select the individual you want to con-

GX1256S Page 37 tact. 5. To cancel, if needed, press the [UP] or [DOWN] key un-

til the EXIT icon appear. Then press the [CALL/

SET(MENU)] key. This procedure can be also canceled by pressing the WX or 16/9 key. 6. Press the [CALL/SET(MENU)] key to transmit the individual DSC signal. 7. After an INDIVIDUAL CALL is transmitted, the transceiver will wait 8 sec-

onds for the acknowledgment. If the reply signal is not received, the transceiver will transmit again. 8. After the second INDIVIDUAL CALL is transmitted, if the reply signal is not received, NO REPLY icon will ap-

pear on the LCD to prompt the user to send the call again or exit the mode. 9. When an individual call acknowledgment able to com-

ply is received, the established channel is automatically selected and an alarm sounds. 10. When an individual call acknowledgment with unable to comply is re-

ceived, the established channel is automatically selected. 7.7.5 Receiving an Individual Call When receiving an individual call, an acknowledgment must be sent back to the calling station. Please refer to a selection in the 7.2.2 Setting up Indi-

vidual Reply that allows the acknowledgment to be transmitted manually or automatically. Automatic Reply:

1. An individual call is received. RECEIVED INDIVIDUAL will appear on the LCD, and an individual call alarm sounds. Then the radio automatically switches to the requested channel. 2. Press any key to stop the alarm, then acknowledgment is transmitted automatically. 3. Press the PTT on the microphone and talk to the calling ship. Manual Reply:

1. An individual call is received. RECEIVED INDIVIDUAL will appear on the LCD, and an individual call alarm sounds. Then the radio automatically switches to the requested channel. 2. Press any key to stop the alarm. Page 38 GX1256S 3. Select type of reply function ABLE or UNABLE by using the [UP] or [DOWN] key. In the Automatic mode, the acknowledgment is transmitted automatically. 4. Press the PTT on the microphone and talk to the calling ship. 7.7.6 Setting Up the Call Waiting Function Allows the QUEST+ to be setup to reply (ABLE) or set the radio so it trans-

mits a call that advises to the vessel the person is UNABLE to reply to the call at this time. This function is similar to a answering machine. When set up in UNABLE and a individual call is received the Individual call from the other vessel is logged in the CALL WAITING directory for you to review and call back at a later time. 1. Press and hold down the [CALL/SET(MENU)] key until RADIO SETUP appears. 2. Press the [DOWN] key to select DSC SETUP. 3. Press the [CALL/SET(MENU)] key, then press the [UP]

or [DOWN] key to select INDIVIDUAL ACK. 4. Press the [CALL/SET(MENU)] key to enable setting this item. 5. Press the [UP] or [DOWN] key to select Ab (Able) or Un (Unable). 6. Press the [CALL/SET(MENU)] key to store the selected setting. 7. Press the [UP] or [DOWN] key to select EXIT, then press the [CALL/SET(MENU)] key. 8. Press the [UP] or [DOWN] key to select EXIT, then press the [CALL/SET(MENU)] key to return to the nor-

mal operation. GX1256S Page 39 7.8 ADVANCED DSC CALLS 7.8.1 Group Call This feature allows the user to contact a group of specific vessels (example members of a yacht club) using DSC radios with Group call function to auto-

matically switch to a desired channel for voice communications. 7.8.1.1 Setup a Group Call For this function to operate the same Group MMSI must be programmed into all the DSC VHF radios within the group of vessels that will be using this feature. The group MMSI is a 9 digit (first digit permanently set to 0) that will allow other radios to call your vessel along with others to automatically switch to a working channel for voice communications. This function is very useful for yacht clubs and vessels traveling together that want to collectively make announcements on a predetermined channel. 1. Press and hold down the [CALL/SET(MENU)] key until RADIO SETUP appears. 2. Press the [DOWN] key to select DSC SETUP. 3. Press the [CALL/SET(MENU)] key, then press the

[DOWN] key to select GROUP DIR. 4. Press the [CALL/SET(MENU)] key to enable setting this item. 5. Press the [UP] or [DOWN] key to select ADD, then press the [CALL/SET(MENU)] key. 6. Press the [UP] or [DOWN] key to select the first letter of the name of the group you want to reference in the di-

rectory. 7. Press the [CALL/SET(MENU)] key to store the first let-

ter in the name. Press the [CALL/SET(MENU)] key to move the cursor one space to the right. 8. Repeat step 6 and 7 until the name is complete. The name can consist of up to eleven characters, if you do not use all eleven characters press the [CALL/

SET(MENU)] key to move to the next space. This method can also be used to enter a blank space in the name. To clear the previous letter, press the [H/L(POS)] key. 9. After the eleventh letter or space has been entered, press and hold the [CALL/SET(MENU)] key to advance to the GROUP MMSI (Maritime Mobile Service Identity Num-

Page 40 GX1256S ber) number entry. 10. Press the [UP] or [DOWN] key to scroll through num-

bers, 0-9. 11. To enter the desired number and move one space to the right press the [CALL/SET(MENU)] key. Repeat pro-

cedure until all nine spaces of MMSI number are en-

tered. 12. If a mistake was made entering in the name or the MMSI number repeat pressing the [CALL/SET(MENU)] key until the wrong character is selected, then press the [UP]

or [DOWN] key to correct the entry. 13. To store the data entered, press and hold the [CALL/

SET(MENU)] key. 14. To enter another individual address, repeat steps 4 through 13. 15. To exit this menu and return to radio operation mode press the [16/9]

key. 7.8.1.2 Transmitting a Group Call 1. Select the desired channel to use Group Call for voice communications. 2. Press the [CALL/SET(MENU)] key. 3. Press the [DOWN] key to select GROUP. (To cancel, select EXIT with the [UP] or [DOWN] key or press [16/

9] key.) 4. Press the [CALL/SET(MENU)] key to enable setting this item. 5. Press the [UP] or [DOWN] key to select the Group you want to contact. 6. Press the [CALL/SET(MENU)] key to transmit the Group Call signal. 7. When the Group Call signal is sent, the LCD will be as shown in the illustration at the right. 8. After the GROUP CALL is transmitted, all the radios in the group will switch to the designated channel. 9. Listen to the channel to make sure it is not busy, then key the microphone and call the other vessels you de-

sire to communicate with. GX1256S Page 41 7.8.1.3 Receiving a Group Call 1. When a group call is received, the QUEST+ will produce a ringing alarm sound. 2. The radio automatically switches to the requested channel. 3. Press any key to stop the alarm. 4. Monitor the channel for the person calling the Group for a message. 5. If you want to respond, monitor the channel to make sure it is clear, then press the PTT on the mic and talk to the calling ship(s). After a Group call is received, the time the call was made and the ships MMSI or vessels name will appear on the LCD. NOTE 7.8.2 Position Request Advancements in DSC have made it possible to poll the location of another vessel and show the position of that vessel on the display of the QUEST+. Standard Horizon has taken this feature one step further, if any Standard Horizon GPS is connected to the QUEST+, the polled position of the vessel is shown on the display of the GPS chart plotter making it easy to navigate to the location of the polled vessel. This is a great feature for anyone want-

ing to know the position of another vessel. For example you buddy that is catching fish, or finding the location of a person you are cruising with. NOTE The other vessel must have an operating GPS receiver connected to its DSC transceiver and must not have its transceiver set to deny position requests. (Refer the section 7.7.1 to enter information into the indi-

vidual directory). Page 42 GX1256S 7.8.2.1 Setting up Position Reply The QUEST+ can be set up to automatically or manually send your position to another vessel. This selection is important if you are concerned about someone polling the position of your vessel that you may not want to. In the manual mode you will see the MMSI or persons name shown on the display allowing you to choose to send your position to the requesting vessel. 1. Press and hold down the [CALL/SET(MENU)] key until RADIO SETUP appears. 2. Press the [DOWN] key to select DSC SETUP. 3. Press the [CALL/SET(MENU)] key, then press the [UP]

or [DOWN] key to select POS REPLY. 4. Press the [CALL/SET(MENU)] key to enable setting this item. 5. Press the [UP] or [DOWN] key to select AU (Automatic) or oF (off). In AU mode, after a DSC POS Request is received, the radio will automatically transmit your ves-

sels position. In oF mode, the display of the QUEST+

will show who is requesting the position. 6. Press the [CALL/SET(MENU)] key to store the selected setting. 7. To exit this menu and return to radio operation mode press the [16/9] key. 7.8.2.2 Transmitting a Position Request to Another Vessel NOTE To transmit a Position Request, you must setup the QUEST+ DSC Indi-

vidual / Position Call Directory with the name of the vessel(s) or person and the MMSI of the DSC radio you wish to poll. To setup this directory refer to section 7.7.1 Setting up the Individual / Position Call Directory 1. Press the [CALL/SET(MENU)] key. 2. Press the [DOWN] key to select POS REQUEST. 3. Press the [CALL/SET(MENU)] key to show the Individual Directory. 4. Press the [UP] or [DOWN] to select a name. 5. Press the [CALL/SET(MENU)] key to transmit the posi-

tion request DSC call. 6. After a DSC position request is transmitted, the trans-

GX1256S Page 43 ceiver remains on channel 70 until position data is re-

ceived from the polled vessel. 7. When the QUEST+ receives the position from the polled vessel it is shown on the radio display and also trans-

ferred to the GPS Chart plotter. If the QUEST+ does not receive a reply, the LCD will display NO REPLY. Press the [DOWN] key and select SEND to transmit the call again or EXIT to exit the Position Request mode. 8. If the QUEST+ does not receive position data from the polled vessel, the LCD will show NO POSITION DATA. NOTE 7.8.2.3 Receiving a Position Request When a position request call is received from another vessel, a ringing alarm will sound and POS REQUEST will be show in the LCD. Operation and transceiver function differs depending on POS REPLY in the DSC SETUP menu setting. Automatically reply:

1. When a position request call is received, a calling alarm sounds 4 times. Then requested position coordinates are transmitted automatically to the vessel requesting your vessels po-

sition. 2. To exit from position request display, press any key. Manually reply:

1. When a position request call is received, RECEIVED POS REQUEST will appear on the LCD, and a calling alarm will sound. 2. Press the any key to disable the calling alarm. 3. Select type of reply function ABLE or EXIT by using the [UP] or [DOWN] key. 4. When ABLE is selected, press the [CALL/SET(MENU)]

key. And the requested position coordinates will be trans-

mitted. 5. To exit from position request display, press any key. Page 44 GX1256S 7.8.3 Position Send The feature is similar to Position Request, however instead of requesting a position of another vessel this function allows you to send your position to another vessel. Your vessel must have an operating GPS receiver connected for the QUEST+ to send the position. NOTE To transmit a Position Send Call, you must setup the QUEST+ DSC Individual / Position Call Directory with the name of the vessel(s) or person and the MMSI of the DSC radio you wish to send your position to. To setup this directory refer to section 7.7.1 Setting up the Individual

/ Position Call Directory. 7.8.3.1 Transmitting a DSC Position Send Call 1. Press the [CALL/SET(MENU)] key. 2. Press the [DOWN] key to select the POS SEND. 3. Press the [CALL/SET(MENU)] key, then press the [UP]

or [DOWN] key to select a name in the directory. 4. Press the [CALL/SET(MENU)] key to send your posi-

tion to the selected vessel. 7.8.3.2 Receiving a DSC Position Send Call When another vessel transmits their vessels location to the QUEST+ the following will happen:

1. A ringing sound will be produced when the call is received. 2. Press the [16/9] key to stop ringing 3. The position from the vessel sending it's position will be shown on the display of the radio and also transferred to any Standard Horizon GPS Chart plotter if connected. GX1256S Page 45 7.8.4 Receiving a geographical area call 1. When a geographical call is received, RECEIVED GEO-

GRAPHIC will appear on the LCD, and an emergency alarm will be heard (different from DISTRESS). Then the requested channel from the other ship is automati-

cally selected. 2. Press any key to stop the alarm. 3. Press the UP or DOWN key to select the receiving dis-

tress data:

MMSI or Station Name 4. Monitor the traffic channel for an announcement from the calling ship or shore station. Page 46 GX1256S 8. RADIO SETUP MODE 8.1 LAMP ADJUSTING 1. Press and hold down the [CALL/SET(MENU)] key until RADIO SETUP appears. 2. Press the [CALL/SET(MENU)] key to select LAMP. 3. Press the [CALL/SET(MENU)] key to enable adjusting this item (The number in the display will flash). 4. Press the [UP] or [DOWN] key to select the desired level. 3: High 2: Mid 1: Low 0: OFF 5. Press the [CALL/SET(MENU)] key to store the selected level. 6. Press the [DOWN] key to select EXIT, then press the

[CALL/SET(MENU)] key. 7. Press the [DOWN] key to select EXIT, then press the

[CALL/SET(MENU)] key to return to the normal opera-

tion. 8.2 LCD CONTRAST ADJUSTING 1. Press and hold down the [CALL/SET(MENU)] key until RADIO SETUP appears. 2. Press the [CALL/SET(MENU)] key, then press the

[DOWN] key to select CONTRAST. 3. Press the [CALL/SET(MENU)] key to enable adjusting this item (The number in the display will flash). 4. Press the [UP] or [DOWN] key to adjust the contrast. Available values are 7 dark through 0 light. 5. Press the [CALL/SET(MENU)] key to store the selected level. 6. Press the [DOWN] key to select EXIT, then press the

[CALL/SET(MENU)] key. 7. Press the [DOWN] key to select EXIT, then press the

[CALL/SET(MENU)] key to return to the normal opera-

tion. GX1256S Page 47 8.3 KEY BEEP (ON or OFF) 1. Press and hold down the [CALL/SET(MENU)] key until RADIO SETUP appears. 2. Press the [CALL/SET(MENU)] key, then press the

[DOWN] key to select KEY BEEP. 3. Press the [CALL/SET(MENU)] key to enable adjusting this item (The number in the display will flash). 4. Press the [UP] or [DOWN] key to select on or oF (off). 5. Press the [CALL/SET(MENU)] key to store the selected setting. 6. Press the [DOWN] key to select EXIT, then press the

[CALL/SET(MENU)] key. 7. Press the [DOWN] key to select EXIT, then press the

[CALL/SET(MENU)] key to return to the normal opera-

tion. 8.4 WEATHER ALERT (ON or OFF) 1. Press and hold down the [CALL/SET(MENU)] key until RADIO SETUP appears. 2. Press the [CALL/SET(MENU)] key, then press the

[DOWN] key to select WX ALT. 3. Press the [CALL/SET(MENU)] key to enable adjusting this item (The number in the display will flash). 4. Press the [UP] or [DOWN] key to select on or oF (off). 5. Press the [CALL/SET(MENU)] key to store the selected setting. 6. Press the [DOWN] key to select EXIT, then press the

[CALL/SET(MENU)] key. 7. Press the [DOWN] key to select EXIT, then press the

[CALL/SET(MENU)] key to return to the normal opera-

tion. Page 48 GX1256S 8.5 CHANNEL NAME CHANGE 1. Press and hold down the [CALL/SET(MENU)] key until RADIO SETUP appears. 2. Press the [CALL/SET(MENU)] key, then press the

[DOWN] key to select CH NAME. 3. Press the [CALL/SET(MENU)] key, then press the [UP]

or [DOWN] key to select the channel on which you wish to change a name. 4. Press the [CALL/SET(MENU)] key to enable adjusting this item. 5. Press the [UP] or [DOWN] key to select the first charac-

ter (letter, number, or symbol) in the name you wish to store, the press the [CALL/SET(MENU)] key to move to the next character. If you make a mistake, press the [H/L(POS)] key to move back, then re-select the correct letter, number, or sym-

bol. 6. 7. Repeat step 5 as many times as necessary to complete the name tag (up to 12 characters). 8. Press and hold the [CALL/SET(MENU)] key to store the new name. 9. Press the [DOWN] key to select EXIT, then press the

[CALL/SET(MENU)] key. 10. Press the [DOWN] key to select EXIT, then press the

[CALL/SET(MENU)] key to return to the normal opera-

tion. GX1256S Page 49 8.6 TIME OFFSET Sets the time difference between local time and UTC (Universal Time Coor-

dinated or GMT Greenwich Mean Time). Time is displayed if the QUEST+ is connected to a GPS receiver. 1. Press and hold down the [CALL/SET(MENU)] key until RADIO SETUP appears. 2. Press the [CALL/SET(MENU)] key, then press the

[DOWN] key to select TIME. 3. Press the [CALL/SET(MENU)] key to enable adjusting this item (The number in the display will flash). 4. Press the [UP] or [DOWN] key to select Time Offset from UTC. Be sure that when selecting the offset that the display shows TIME for negative offset, or TIME + for a positive offset. Refer to Offset Time Table. See illustration below to find your offset time from UTC. If 0:0 is assigned, the time is the same as UTC. 6. Press the [CALL/SET(MENU)] key to store the time off-

set. 7. Press the [DOWN] key to select EXIT, then press the

[CALL/SET(MENU)] key. 8. Press the [DOWN] key to select EXIT, then press the [CALL/

SET(MENU)] key to return to the normal operation. OFFSET TIME TABLE During Daylight Saving time subtract 1 hour from the offset shown above and enter this offset in step 4 above. NOTE Page 50 GX1256S 9 RAM+ MIC OPERATION If the enhanced optional RAM+ Mic (CMP25) is connected to the remote microphone connector on the transceivers rear panel, the transceiver can use the remote control operation except for a few functions. The RAM+ Mic supplied with 23 feet (7 m) of routing cable and can be extended up to 70 feet (21 m) using three 23 feet extension cables model CT-100. The inter-

com operation can be used between the RAM+ Mic and the transceiver. 9.1 RAM+ MIC CONTROLS MEM IC SCAN DW WX CALL SET MENU NAV 16 9 C

. I

. U SQUELCH CONTROL (SQL) Activates the squelch adjusting mode. Press this key to activate the squelch adjusting mode. Press the microphones [] or [] key to adjust the squelch. When [] key is pressed and held down for 1 second or more, the squelch is turned off. GX1256S Page 51 VOLUME KEY (VOL) Activates the volume adjusting mode. Press this key to activate the volume adjusting mode. Press the microphones [] or [] to adjust the volume. POWER SWITCH (PWR) Press and hold down this key to turn to the transceiver and RAM+ Mic on and off. PTT (Push-To-Talk) SWITCH Activates transmission.

[H/L] KEY Toggles between high and low power. When the [H/L] key is pressed while the transceiver is on channel 13 or 67, the power will temporarily switch from LO to HI power until the PTT is released. The [H/L] key does not function on transmit inhibited and low power only channels.

[](UP)/[](DOWN) KEY These keys are used to select channels, adjusts the volume and squelch level, and to choose the item selection of different functions (such as the DSC operation). In many ways, these keys emulate the function of the transceivers CHANNEL selector knob.

[16/9] KEY Immediately recalls channel 16 from any channel location. Holding down this key recalls channel 9. Pressing the [16/9] key reverts to the previous selected working channel. Secondary use Please see secondary use for the [WX] and [MEM] key. KEY PAD

[SCAN] Key 1. Starts and stops scanning of programmed channels. 2. If held while the [UP()] or [DOWN()] key on the microphone are pressed, the radio will show the channels programmed in scan memory. This function will not work if the unit is scanning. NOTE: The priority channel is channel 16 only. Page 52 GX1256S

[CALL/SET] Key The [CALL/SET] key functions as the enter key. Secondary use Press the [CALL/SET] key to access the DSC OPERATION menu. Press and hold the [CALL/SET] key to access the SETUP menu.

[DW] Key Watches for a transmission on CH16 and another selected channel until either signal is received. (Dual watch) NOTE: When the DSC SCANNING feature is enabled (see section 7.15 DSC SCAN), the radio watches for a transmission on CH16, another selected channel, and CH70 until either signal is received (Triple watch). Secondary use Press and hold [DW] key, intercom operation will operate between radio and RAM Mic.

[NAV] Key Press and hold this key, when connected to the GPS receiver, the LCD displays Position Data from the GPS.

[WX] Key Immediately recalls the previously selected NOAA weather channel from any channel location. Secondary use Holding down the [16/9] key while pressing the [WX] key changes the mode from USA to International or Canadian. NOTE: If position is displayed, this icon will be hidden.

[DISTRESS] KEY Used to send a DSC Distress Call. To send the distress call:

1. Lift the red rubber cover. 2. Press and hold the Red button. The RAM+ display will count down (3-2-1) and then transmit the Distress call. 3. When the distress signal is sent, Ch70 and TX icon will appear on the LCD. After the message has been sent, the radio will sound a Distress Alarm. 4. The transceiver shadow-watches for a transmission on CH16 or CH70 until an acknowledgment signal is received. DISTRESS and WAITING will appear on the LCD. GX1256S Page 53 5. 6. If an acknowledgement is received, select channel 16 and advise your distress situation. If no acknowledgment is received, the distress call is repeated in 4 minute intervals until an acknowledg-

ment is received. 7. When a DSC Distress acknowledgment is received, a distress alarm sounds and channel 16 is automatically selected. The LCD shows the MMSI of the ship responding to your distress. RECEIVED ACK: acknowledgment signal is received. RECEIVED RLY: relay signal is received from another vessel or coast station. 8. To cancel the DSC distress alarm signal from the speaker, press any key. 9.2 INTERCOM OPERATION 9.2.1 Communication 1. Press and hold the [DW] key while in the RADIO mode, the mode is changed to INTERCOM mode. If the [DW] key pressed and held again the QUEST+ will revert to RADIO mode. 2. When the INTERCOM operation is activated, IC is dis-

played on the LCD. 3. Press the PTT switch. The TALK is displayed. NOTE: A warning beep is emitted when the RAM+ Mic PTT switch is pressed while the transceiver microphones PTT switch is pressed. 4. Speak slowly and clearly into the microphone, hold the microphone about 1/2 inch away from your mouth. 5. When finished, release the PTT switch. 9.2.2 Calling Hold down the [DW] key for 1 second or more, when the INTERCOM op-

eration is activated. A calling beep is emitted twice from the transceiver speaker. Page 54 GX1256S 9.3 DSC/RADIO SETUP MODE The CMP25 can access the DSC / RADIO setup menu (refer to section 7 DIGITAL SELECTIVE CALLING and section 8 RADIO SETUP MODE for details). However, the LAMP, CONTRAST, and KEY BEEP menu item which is accessed from the CMP25 only controls the CMP25s display and speaker. DSC/RADIO Setup mode from the CMP25:

1. Press and hold down the [CALL/SET] key until RADIO SETUP menu appears. 2. Press the []/[] key to select RADIO SET or DSC SETUP menu. 3. Press the [CALL/SET] key, then select the menu item you wish to work on by pressing the []/[] key. 4. Press the [CALL/SET] key. 5. Press the []/[] key to change the value or condition for the menu item, then press the [CALL/SET] key to save the new setting. 6. Press the []/[] key to select EXIT, then press the [CALL/SET] key to return to the normal operation. RADIO SETUP-menu DSC SETUP-menu GX1256S Page 55 10 MAINTENANCE The inherent quality of the solid-state components used in this transceiver will provide many years of continuous use. Taking the following precautions will prevent damage to the transceiver. Keep the microphone connected or the jack covered at all times to pre-

vent corrosion of electrical contacts;

Never key the microphone unless an antenna or suitable dummy load is connected to the transceiver. Ensure that the supply voltage to the transceiver does not exceed 16 VDC or fall below 11 VDC. Use only STANDARD HORIZON-approved accessories and replacement parts. In the unlikely event of serious problems, please contact your Dealer or our repair facility. Address and phone numbers for this facility, as well as war-

ranty information, are contained in section 11 WARRANTY. 10.1 REPLACEMENT PARTS Occasionally an owner needs a replacement mounting bracket or knob. These can be ordered from our Parts Department by writing or calling:

Marine Division of Vertex Standard US Headquarters 10900 Walker Street, Cypress, CA 90630, U.S.A. Telephone (714) 827-7600 Commonly requested parts, and their part numbers are listed below. Power Cord: T9023306 Dust Cover: RA0437900 VOL/SQL Knob Assy: RA0422200 Mounting Braket (White): RA0448900 Mounting Braket (Black): RA0459200 Mounting Braket Knob (White): RA043770A Mounting Braket Knob (Black): RA045910A Microphone Hanger (White): RA0436000 Microphone Hanger (Black): RA0458800 RAM+ Routing Cable: S8101512 RAM+ Panel Mount Cap: RA0525200 RAM+ Rubber DSC Distress Cover: RA0523200 Page 56 GX1256S 10.2 FACTORY SERVICE In the unlikely event that the radio fails to perform or needs servicing, please contact your Dealer or Marine Division of Vertex Standard. An RA Return Authorization number is not necessary to send a product in for service. Include a brief note describing the problem along with your name, return address, phone number, and proof of purchase. GX1256S Page 57 10.3 TROUBLESHOOTING CHART TROBLESHOOTING CHART SYMPTOM PROBABLE CAUSE REMEDY Transceiver fails to power up. No DC voltage to the transceiver, or blown fuse. Transceiver blows fuse when connected to power supply. R e v e r s e d p o w e r wires. Popping or whining n o i s e f r o m t h e speaker while engine runs. Engine noise. Sound is not emitted f r o m t h e e x t e r n a l speaker. Receiving station re-

p o r t l o w t r a n s m i t p o w e r, e v e n w i t h transceiver set to HI power. H I B AT T E R Y o r L O W B AT T E R Y message is scrolled when the power is turned on. Your position is not displayed. External cable. Antenna. The power supply volt-

age is too high or too low. External cable. Setting of the GPS navigation receiver. a. Check the 12 VDC battery con-

nections and the fuse. b. The VOL/PWR knob needs to be pressed and held to turn the ra-

dio on. Check the power cable for DC volt-

age, or replace the fuse (6A 250V). Make sure the red wire is con-

nected to the positive (+) battery post, and the black wire is con-

nected to the negative (-) battery post. If the fuse still blows, con-

tact your Dealer. Reroute the DC power cables away from the engine. Add noise suppressor on power cable. Change to resistive spark plug wires and/or add an alternator whine filter. Check the polarity of the con-

nected external cable. Have the antenna checked or test the transceiver with another an-

tenna. If the problem persists, con-

tact your Dealer for servicing. Confirm that the connected power supply voltage is not 17 volts or lower than 10 volts. Confirm that the generator has not malfunc-

tioned. Check the polarity of the con-

nected external cable. Some GPS use the battery ground line for NMEA connection. Check the output signal format of the GPS navigation receiver. This radio requires NMEA0183 format with GLL sentence as an output signal. If the GPS has a baud rate setting make sure to select 4800 and parity to NONE. Page 58 GX1256S 11. CHANNEL ASSIGNMENTS Tables on the following columns list the VHF Marine Channel assignments for U.S.A. and International use. Below are listed some data about the charts. 1. VTS. Where indicated, these channels are part of the U.S. Coast Guards Vessel Traffic System. 2. Alpha channel numbers, that is, channel numbers followed by the letter A (such as Channel 07A) are simplex channels on the U.S.A. or Cana-

dian channel assignments whose counterparts in the International as-

signments are duplex channels. International channels do not use al-

pha numbers. If you call the Coast Guard on Channel 16, they will some-

times ask you to go to channel 22 Alpha. This is a channel assigned to U.S.A, and Canadian Coast Guards for handling distress and other calls. If your radio is set for International operation you will go to Chan-

nel 22 instead of 22A, and will not be able to communicate with the Coast Guard. To use Channel 22A, your radio must be set for USA or Canada operation, usually by a U/I/C (USA/International/Canada) con-

trol or combination of controls. Channel 22 (without an A) is an Inter-

national duplex channel for port operations. Some radios indicate an A adjacent to the alpha channels on the display; on others alpha is not indicated but the proper channel is selected based on the U/I/C set-

ting. 3. Bridge-to-Bridge channels (for example, Channel 13) are for use by bridge operators on intercoastal waterways and rivers. It is also used by marine vessels in the vicinity of these bridges for navigation and for communi-

cating with the bridge operators. Note that a limit of 1 Watt is specified for these channels. See page 25 for additional information. 4. The S/D column on the chart indicates either S (simplex) or D (duplex). Simplex means transmitting and receiving on the same frequency. Only one party at a time can talk, unlike a telephone. Be sure to say over and release your microphone push-to-talk switch at the end of each trans-

mission. Duplex operation involves the use of one frequency for trans-

mitting and a separate frequency for receiving. On channels specified as duplex on the charts, correct mode of operation is established auto-

matically by your radio when you select a channel; you cannot change the mode. And you still must release the push-to-talk switch after each transmission in order to listen to the radio. GX1256S Page 59 5. Channels normally used by recreational boaters are those that include the term non-commercial in the Channel Use column of the chart. Some of these are shared with other users and some are used only in certain geographic regions. 6. Marine vessels equipped with VHF radios are required to monitor Channel 16. VHF MARINE CHANNEL CHART TX RX CHANNEL USE X X D 156.050 160.650 Public Correspondence (Marine Operator) 156.050 Port Operation and Commercial. VTS in selected areas CH U C I S/D 01 01A X 02 03 03A X 04 S S X X D 156.100 160.700 Public Correspondence (Marine Operator) X X D 156.150 160.750 Public Correspondence (Marine Operator) 156.150 US Government only, Coast Guard X D 156.200 160.800 Public Correspondence (Marine Operator), 04A X S 156.200 Port operation, ship movement Pacific coast: Coast Guard, East Coast:

Commercial fishing 05 X D 156.250 160.850 Public Correspondence (Marine Operator), 05A X X 06 X X X 07 S S 156.250 156.300 Port operation, ship movement Port operation. VTS in Seattle Inter-ship Sefety X D 156.350 160.950 Public Correspondence (Marine Operator), 07A X X 08 X X X 09 X X X S S S 156.350 156.400 156.450 Port operation, ship movement Commercial Commercial (Inter-ship only) Boater Calling channel, Commercial & Non-commercial

(Recreational) Commercial Commercial. VTS in selected areas. Port operation. VTS in selected areas. Inter-ship Navigation Safety (Bridge-to-bridge) Port operation. VTS in selected areas. Commercial, non-commercial, ship movement (1 W) International Distress, Safety and Calling State Controlled (1 W)

S S S S S S S S S 156.750 Environmental (Receive only) 156.500 156.550 156.600 156.650 156.700 10 X X X 11 X X X 12 X X X 13 X X X 14 X X X 15 X 15 X X 16 X X X 17 X X X 18 18A X X 19 19A X 19A 20 X X X D 157.000 161.600 Canadian Coast Guard Only, US: Commercial Coast Guard 156.750 156.800 156.850 X D 156.900 161.500 Port operation, ship movement X D 156.950 161.550 Port operation, ship movement 156.950 156.950 Commercial 156.900 S S X S 20A X 21 21A X X 22 22A X X Page 60 S 157.000 International: port operations and shipment Port operation X D 157.050 161.650 Port operation, ship movement S 157.050 U.S. Government Only, Canadian Coast Guard X D 157.100 161.700 Port operation, ship movement S 157.100 US and Canadian Coast Guard Liaison and Maritime Safety Information Broadcasts announced on channel 16 GX1256S VHF MARINE CHANNEL CHART S TX RX 157.150 CHANNEL USE U.S. Government Only X X D 157.150 161.750 Public Correspondence (Marine Operator) CH U C I S/D 23 23A X 24 X X X D 157.200 161.800 Public Correspondence (Marine Operator) 25 X X X D 157.250 161.850 Public Correspondence (Marine Operator) 26 X X X D 157.300 161.900 Public Correspondence (Marine Operator) 27 X X X D 157.350 161.950 Public Correspondence (Marine Operator) 28 X X X D 157.400 162.000 Public Correspondence (Marine Operator) X X D 156.025 160.625 Public Correspondence (Marine Operator) 60 X D 156.075 160.675 Public Correspondence (Marine Operator), 61 61A X X S 156.075 Port operation, ship movement U.S. Government Only, Canadian Coast Guard-

Pacific Coast, Commercial Fishing-East Coast 62 X D 156.125 160.725 Public Correspondence (Marine Operator), 62A X S 156.125 Port operation, ship movement Public Coast: Coast Guard;

East Coast: commercial fishing only 63 X D 156.175 160.775 Public Correspondence (Marine Operator), 63A X 64 S 156.175 Port operation, ship movement Port Operation and Commercial. VTS in selected areas. X X D 156.225 160.825 Public Correspondence (Marine Operator), 64A X X 65 65A X X 66 S 156.225 Port operation, ship movement U.S. Government Only, Canadian Commercial Fishing X D 156.275 160.875 Public Correspondence (Marine Operator), S 156.275 Port operation, ship movement Port Opeations X D 156.325 160.925 Public Correspondence (Marine Operator), 66A X X 67 X X X 68 X X X 69 X X X 70 X X X 71 X X X 72 X X X 73 X X X 74 X X X S S S S S S S S S 156.325 156.375 156.425 156.475 156.525 156.575 156.625 156.675 156.725 75 X 76 X 77 X X 77 78 S S S S 156.775 156.825 156.875 156.875 Port operation, ship movement Port Operations US: Commercial. Used for Bridge-to-bridge communi-

cations in lower Mississippi River. Inter-ship only, Canada: Commercial fishing, S&R Non-commercial (Recreational) US: Non-commercial (Recreational), Canada: Commercial fishing only, International: Inter-ship, Port opertions and Ship movement Digital selective calling (voice communications not allowed) US, Canada: Non-commercial (Recreational), International: Port opertions and Ship movement Non-commercial (Inter-ship only) US: Port Operations, Canada: Commercial fishing only, International: Inter-ship, Port opertions and Ship movement US: Port Operations, Canada: Commercial fishing only, International: Inter-ship, Port opertions and Ship movement Port Operations (Inter-ship only) (1W) Port Operations (Inter-ship only) (1W) Port Operations (Inter-ship only) (1W) Port Operations (Inter-ship only) X X D 156.925 161.525 Public Correspondence (Marine Operator), 78A X X S 156.925 Port operation, ship-movement Non-commercial (Recreational) GX1256S Page 61 VHF MARINE CHANNEL CHART TX RX CHANNEL USE X D 156.975 161.575 Port operation and Ship movement X D 157.025 161.625 Port operation, ship movement 156.975 Commercial 157.025 Commercial X D 157.075 161.675 Port operation, ship movement CH U C I S/D 79 79A X X 80 80A X X 81 81A X X S S S 157.075 U.S. Government Only -

Environmental protection operations. 82 X D 157.125 161.725 Public Correspondence (Marine Operator), Port operation, ship movement U.S. Government Only, Canadian Coast Guard Only U.S. Government Only, Canadian Coast Guard Only S S 157.175 157.125 X X D 157.175 161.775 Canadian Coast Guard Only 82A X X 83 83A X X X X D 157.175 161.775 Public Correspondence (Marine Operator) 83 84 X X X D 157.225 161.825 Public Correspondence (Marine Operator) 85 X X X D 157.275 161.875 Public Correspondence (Marine Operator) 86 X X X D 157.325 161.925 Public Correspondence (Marine Operator) 87 X X X D 157.375 161.975 Public Correspondence (Marine Operator) 88 X X X D 157.425 162.025 Public Correspondence (ship-to-coast) S 88A X WX01 X X X D WX02 X X X D WX03 X X X D WX04 X X X D WX05 X X X D WX06 X X X D WX07 X X X D WX08 X X X D WX09 X X X D WX10 X X X D 162.550 Weather (receive only) 162.400 Weather (receive only) 162.475 Weather (receive only) 162.425 Weather (receive only) 162.450 Weather (receive only) 162.500 Weather (receive only) 162.525 Weather (receive only) 161.650 Weather (receive only) 161.775 Weather (receive only) 163.275 Weather (receive only)

Commercial, Inter-ship Only 157.425 The above BOLD channels are not for use of the general public in U.S. waters, unless proper authorization is given. Page 62 GX1256S Channel designator Carrier frequency

(MHz) Ship transmit Coast transmit Points of communica-

tion (Intership and be-

tween coast and ship unless otherwise indi-

cated) Channel designator Carrier frequency

(MHz) Ship transmit Coast transmit Points of communica-

tion (Intership and be-

tween coast and ship unless otherwise indi-

cated) Port Operations Noncommercial 01A1 63A1 052 65A 66A 123 73 143 74 774 20A12 156.050 156.050 156.175 156.175 156.250 156.250 156.275 156.275 156.325 156.325 156.600 156.600 156.675 156.675 156.700 156.700 156.725 156.725 156.875 157.000 Intership only. Intership only. Navigational (Bridge-to-Bridge)5 136 677 156.650 156.650 156.375 156.375 Commercial 6817 0916 69 71 72 78A 79A 80A 6714 16 06

........ Do. 01A1 63A1 07A 677 08 09 10 113 18A 19A 79A 80A 88A8 7214 156.050 156.050 156.175 156.175 156.350 156.350 156.375 156.400 156.450 156.450 156.500 156.500 156.550 156.550 156.900 156.900 156.950 156.950 156.975 156.975 157.025 157.025 157.425 156.625

........ ....... Digital Selective Calling 7015 156.525 156.525 Intership only. Internship only. 156.425 156.425 156.450 156.450 156.475 156.475 156.575 156.575 156.625 156.925 156.925 156.975 156.975 Great Lakes only. 157.025 157.025 Do. 156.375 Internship only. Intership only. ....... ...... Distress, Safety and Calling 156.800 156.800 EPRIB Intership Safety 156.300

........ a. Intership, or b. For SAR: Ship and aircraft for the U.S. Coast Guard. Environmental Maritime Control 179,10 156.850 156.850 22A11 Liaison, U.S. Coast Guard 157.100 157.100 Ship, aircraft, and coast stations of t h e U . S . C o a s t Guard and at Lake Mead, Nev., ship and coast stations of the National Park Service, U.S. Department of the Interior. Intership only. 1513

........ 156.750 Coast to ship only. 1: 156.050 MHz and 156.175 MHz are available for port operations and commercial communications purposes when used only within the U.S. Coast Guard designated Vessel Traffic Services (VTS) area of New Orleans, on the lower Mississippi River from the various pass entrances in the Gulf of Mexico to Devils Swamp Light at River Mile 242.4 above head of passes near Baton Rouge. 2: 156.250 MHz is available for port operations communications use only within the U.S. Coast Guard designated VTS radio protection areas of New Orleans and Houston described in Sec. 80.383. 156.250 MHz is available for intership port operations communications used only within the area of Los Angeles and Long Beach harbors, within a 25- nautical mile radius of Point Fermin, California. 3: 156.550 MHz, 156.600 MHz and 156.700 MHz are available in the U.S. Coast Guard designated port areas only for VTS communications and in the Great Lakes available primarily for communica-

tions relating to the movement of ships in sectors designated by the St. Lawrence Seaway Develop-

ment Corporation or the U.S. Coast Guard. The use of these frequencies outside VTS and ship movement sector protected areas is permitted provided they cause no interference to VTS and ship movement communications in thier respective designated sectors. GX1256S Page 63 4: Use of 156.875 MHz is limited to communications with pilots regarding the movement and docking of ships. Normal output power must not exceed 1 watt. 5: 156.375 MHz and 156.650 MHz are available primarily for intership navigational communications. These frequencies are available between coast and ship on a secondary basis when used on or in the vicinity of locks or drawbridges. Normal output power must not exceed 1 watt. Maximum output power must not exceed 10 watts for coast stations or 25 watts for ship stations. 6: On the Great Lakes, in addition to bridge-to-bridge communications, 156.650 MHz is available for vessel control purposes in established vessel traffic systems. 156.650 MHz is not available for use in the Mississippi River from South Pass Lighted Whistle Buoy 2 and Southwest Pass entrance Midchannel Lighted Whistle Buoy to mile 242.4 above Head of Passes near Baton Rouge. Addition-

ally it is not available for use in the Mississippi River-Gulf Outlet, the Mississippi River-Gulf Outlet Canal, and the Inner Harbor Navigational Canal, except to aid the transition from these areas. 7: Use of 156.375 MHz is available for navigational communications only in the Mississippi River from South Pass Lighted Whistle Buoy 2 and Southwest Pass entrance Mid-channel Lighted Whistle Buoy to mile 242.4 above head of Passes near Baton Rouge, and in addition over the full length of the Mississippi River-Gulf Outlet Canal from entrance to its junction with the Inner Harbor Navigation Canal, and over the ull length of the Inner Harbor Navigation Canal from its junction with the Missis-

sippi River to its entry to Lake Pontchartrain at the New Seabrook vehicular bridge. 8: Within 120 km (75 miles) of the United States/Canada border, in the area of the Puget Sound and the Strait of Juan de Fuca and its approaches, 157.425 MHz is half of the duplex pair designated as Channel 88. In this area, Channel 88 is available to ship stations for communications with public coast stations only. More than 120 km (75 miles) from the United States/Canada border in the area of the Puget Sound and the Strait of Juan de Fuca, its approaches, the Great Lakes, and the St. Lawrence Seaway, 157.425 MHz is available for intership and commercial communications. Outside Puget Sound area and its approaches and the Great Lakes, 157.425 MHz is also available for communications between commercial fishing vessels and associated aircraft while engaged in com-

mercial fishing activities. 9: When the frequency 156.850 MHz is authorized, it may be used additionally for search and rescue training exercises conducted by state or local governments. 10: The frequency 156.850 MHz is additionally available to coast stations on the Great Lakes for trans-

mission of scheduled Coded Marine Weather Forecasts (MAFOR), Great Lakes Weather Broadcast

(LAWEB) and nscheduled Notices to Mariners or Bulletins. F3C and J3C emissions are permitted. Coast Stations on the Great Lakes must cease weather broadcasts which cause interference to stations operating on 156.800 MHz until the interference problem is resolved. 11: The frequency 157.100 MHz is authorized for search and rescuetraining exercises by state or local government in conjunction with U.S. Coast Guard stations. Prior U.S. Coast Guard approval is re-

quired. Use must cease immediately on U.S. Coast Guard request. 12: The duplex pair for channel 20 (157.000/161.600 MHz) may be used for ship to coast station com-

munications. 13: Available for assignment to coast stations, the use of which is in accord with an agreed program, for the broadcast of information to ship stations concerning the environmental conditions in which ves-

sels operate, i.e., weather; sea conditions; time signals; notices to mariners; and hazards to naviga-

tion. 14: Available only in the Puget Sound and the Strait of Juan de Fuca. 15: The frequency 156.525 MHz is to be used exclusively for distress, safety and calling using digital selective calling techniques. No other uses are permitted. 16: The frequency 156.450 MHz is available for intership, ship and coast general purpose calling by noncommercial vessels, such as recreational boats and private coast stations. 17: The frequency 156.425 MHz is assigned by rule to private coast stations in Alaska for facsimile transmissions as well as voice communications. Page 64 GX1256S 12. WARRANTY Marine Products Limited Warranty STANDARD HORIZON (a division of VERTEX STANDARD) warrants, to the original purchaser only, each new Marine Communications Product (Prod-

uct) manufactured and/or supplied by STANDARD HORIZON against de-

fects in materials and workmanship under normal use and service for a period of time from the date of purchase as follows:

Fixed Mount and Portable Transceivers 1 year - if purchased before 01/01/91 3 years - if purchased between 01/01/91 and 01/01/94 3 years Waterproof - if purchased after 01/01/94 Loud hailers 1 year - if purchased before 01/01/91 3 years - if purchased after 01/01/91 Associated Chargers 1 year - if purchased before 01/01/91 3 years - if purchased after 01/01/91 Associated Batteries - 18 months. Note: Batteries will be deemed deflec-

tive only if storage capacity drops below 80% of rated capacity or if leakage develops. Associated Accessories - 1 year. Includes: Microphones/Handsets, Exter-

nal Speakers, Antennas, Carrying Accessories, Power Supplies, and Sig-

naling Boards. To receive warranty service, the purchaser must deliver the Product, trans-

portation and insurance prepaid, to STANDARD HORIZON (a division of VERTEX STANDARD). Include proof of purchase indicating model. serial number, and date of purchase. STANDARD HORIZON will return the Prod-

uct to the purchaser freight prepaid. Products purchased prior to January 1, 1991 will bear the STANDARD HORIZON warranty terms in effect prior to that date. In the event of a defect, malfunction or failure of the Product during the warranty period, STANDARD HORIZONs liability for any breach of contract or any breach of express or implied warranties in connection with the sale of Products shall be limited solely to repair or replacement, at its option, of the Product or part(s) therein which, upon examination by STANDARD HORI-

GX1256S Page 65 ZON, appear to be defective or not up to factory specifications. STANDARD HORIZON may, at its option, repair or replace parts or subassemblies with new or reconditioned parts and subassemblies. Parts thus repaired or re-

placed are warranted for the balance of the original applicable warranty. STANDARD HORIZON will not warrant installation, maintenance or service of the Products. In all instances, STANDARD HORIZONs liability for dam-

ages shall not exceed the purchase price of the defective Product. This warranty only extends to Products sold within the 50 States of the United States of America and the District of Columbia. STANDARD HORIZON will pay all labor to repair the product and replace-

ment parts charges incurred in providing the warranty service except where purchaser abuse or other qualifying exceptions exist. The purchaser must pay any transportation expenses incurred in returning the Product to STAN-

DARD HORIZON for service. This limited warranty does not extend to any Product which has been sub-

jected to misuse, neglect, accident, incorrect wiring by anyone other than STANDARD HORIZON, improper installation, or subjected to use in viola-

tion of instructions furnished by STANDARD HORIZON, nor does this war-

ranty extend to Products on which the serial number has been removed, defaced, or changed. STANDARD HORIZON cannot be responsible in any way for ancillary equipment not furnished by STANDARD HORIZON which is attached to or used in connection with STANDARD HORIZONs Products, or for the operation of the Product with any ancillary equipment, and all such equipment is expressly excluded from this warranty. STANDARD HORIZON disclaims liability for range, coverage, or operation of the Product and ancil-

lary equipment as a whole under this warranty. STANDARD HORIZON re-

serves the right to make changes or improvements in Products, during sub-

sequent production, without incurring the obligation to install such changes or improvements on previously manufactured Products. The implied warranties which the law imposes on the sale of this Product are expressly LIMITED, in duration, to the time period specified above. STAN-

DARD HORIZON shall not be liable under any circumstances for conse-

quential damages resulting from the use and operation of this Product, or from the breach of this LIMITED WARRANTY, any implied warranties, or any contract with STANDARD HORIZON. IN CONNECTION WITH THE SALE OF ITS PRODUCTS, STANDARD HORIZON MAKES NO WARRAN-

Page 66 GX1256S TIES, EXPRESS OR IMPLIED AS TO THE MERCHANTABILITY OR FIT-

NESS FOR A PARTICULAR PURPOSE OR OTHERWISE, EXCEPT AS EXPRESSLY SET FORTH HEREIN. Some states do not allow the exclusion or limitation of incidental or conse-

quential damages, or limitation on how long an implied warranty lasts, so the above limitations or exclusions may not apply. This warranty gives spe-

cific legal rights, and there may be other rights which may vary from state to state. ONLY PRODUCTS SOLD ON OR AFTER JANUARY 1, 1991 ARE COV-

ERED UNDER THE TERMS OF THIS LIMITED WARRANTY. GX1256S Page 67 ON-LINE WARRANTY REGISTRATION THANK YOU for buying STANDARD HORIZON (a division of Vertex Standard) products! We are confident your new radio will serve your needs for many years!

Please visit www.standardhorizon.com to register the QUEST Ma-

rine VHF. It should be noted that visiting the Web site from time to time may be beneficial to you, as new products are released they will appear on the STANDARD HORIZON Web site. Also a statement regarding product support should be added to the manual. Product Support Inquiries If you have any questions or comments regarding the use of the QUEST+, you can visit the STANDARD HORIZON Web site to send an E-Mail or contact the Product Support team at (714) 827-7600 ext 6300 M-F 7:00-5:00PST. In addition to the warranty, STANDARD HORIZON includes a life-

time flat rate program to provide service after the warranty period has expired. If you wish to obtain the flat rate price for out-of-war-

ranty repair, you must include the information on the Owners Record with the unit when you return it to your Dealer or to STANDARD HORIZON. Lifetime Flat Rate Service Program: For the original Owner only, for the lifetime of the unit, STANDARD HORIZON will repair the unit to original specifications. Note: The flat rate amount is payable by the Owner only if STAN-

DARD HORIZON or the STANDARD HORIZON Dealer determines that a repair is needed. After the repair, a 90-day warranty will be in effect from the date of return of the unit to the Owner. This service program is not available for equipment which has failed as a result of neglect, accident, breakage, misuse, improper installa-

tion or modification, or water damage (depending on the product). Page 68 GX1256S 13 SPECIFICATIONS Performance specifications are nominal, unless otherwise indicated, and are subject to change without notice. 13.1 GENERAL Channels ............................................ All USA, International and Canadian Input Voltage ........................................................................ 13.8 VDC 20%

Current Drain Standby ............................................................................................ 0.5 A Receive ............................................................................................ 1.5 A Transmit ................................................................... 5.0 A (Hi); 1.5 A (Lo) Dimensions ................................................ 2-1/2 H x 6-5/16 W x 6-5/16 D

(64 H x 160 W x 160 D mm) Flush-Mount Dimensions .................................. 2 H x 5-5/16 W x 5-1/8 D

(50 H x 136 W x 130 D mm) Weight ...................................................................................... 2.2 lbs (1 kg) 13.2 TRANSMITTER Frequency Range .................................................. 156.025 to 157.425 MHz RF Output ...................................................................... 25 W (Hi); 1 W (Lo) Conducted Spurious Emissions ................................. 80 dB (Hi); 60 dB (Lo) Audio Response .............................................. within +1/-3 of a 6 dB/octave pre-emphasis characteristic at 300 to 3000 Hz Audio Distortion ....................................................................................... 5 %

Modulation ..................................................... 16K0G3E, for DSC 16K0G2B Frequency Stability (-20C to +50C) ........................................... 0.0005%

FM Hum and Noise .............................................................................. 50 dB 13.3 RECEIVER Frequency Range .................................................. 156.050 to 163.275 MHz Sensitivity 20 dB Quieting ............................................................................. 0.35 V 12 dB SINAD ............................................................................... 0.25 V Squelch Sensitivity (Threshold) .................................................. 0.13 V Modulation Acceptance Bandwidth ................................................. 7.5 kHz Selectivity Spurious and Image Rejection ...................................................... -70 dB Intermodulation and Rejection at 12 dB SINAD ........................... -70 dB Audio Output ............................................................................................ 4 W Audio Response ............................................ within + 2/8 of a 6 dB/octave de-emphasis characteristic at 300 to 3000 Hz Frequency Stability (-20C to +50C) .......................................... 0.0005 %

Channel Spacing ................................................................................ 25 kHz DSC Format .............................................................................. RTCMSC101 GX1256S Page 69 MEMO Page 70 GX1256S MEMO GX1256S Page 71 Marine Division of VERTEX STANDARD US Headquarters 10900 Walker Street, Cypress, CA 90630, U.S.A. www. standardhorizon.com Copyright 2004 VERTEX STANDARD CO., LTD. All rights reserved. No portion of this manual may be reproduced without the permission of VERTEX STANDARD CO., LTD. E M 0 0 5 N 1 0 0 Page 72 0401b-0Y GX1256S