FCC ID: AFJ269700 VHF Marine Transceiver

 

INSTRUCTION MANUAL VHF MARINE TRANSCEIVER iM502A FOREWORD IMPORTANT Thank you for purchasing this Icom product. The IC-

M502A VHF MARINE TRANSCEIVER is designed and built with Icoms state of the art technology and craftsman-

ship. With proper care, this product should provide you with years of trouble-free operation. We want to take a couple of moments of your time to thank you for making the IC-M502A your radio of choice, and hope you agree with Icoms philosophy of technology rst. Many hours of research and devel-

opment went into the design of your IC-M502A. DFEATURES Standard 46ush mount design Built-in DSC meets RTCM SC101 require-

ment Rugged waterproof construction NMEA Input/Output Optional COMMANDMIC is connectable INSTRUCTION MANUAL READ THIS CAREFULLY before attempting to operate the trans-

ceiver. SAVE THIS INSTRUCTION MANUAL. This manual contains important safety and operating in-

structions for the IC-M502A. CLEAN THE TRANSCEIVER AND MICROPHONE THOROUGHLY WITH FRESH WATER after exposure to water including salt water, otherwise, the keys and switches may become inoperable due to salt crystallization. Icom, Icom Inc. and the logo are registered trademarks of Icom Incorporated (Japan) in the United states, the United Kingdom, Germany, France, Spain, Russia and/or other coun-

tries. COMMANDMIC is a registered trademark of Icom Incorporated (Japan) in the United states. i NOTE A WARNING STICKER is supplied with the transceiver. To comply with FCC regulations, this sticker must be afxed in such a location as to be readily seen from the operating con-

trols of the radio as in the diagram below. Make sure the cho-

sen location is clean and dry before applying the sticker. (p. 42) EXAMPLE IN CASE OF EMERGENCY If your vessel requires assistance, contact other vessels and the Coast Guard by sending a distress call on Ch 16. USING CHANNEL 16 DISTRESS CALL PROCEDURE 1. MAYDAY MAYDAY MAYDAY. 2. THIS IS ............... (name of vessel) 3. Your call sign or other indication of the vessel (AND 9-

digit DSC ID if you have one). 4. LOCATED AT ............... (your position) 5. The nature of the distress and assistance required. 6. Any other information which might facilitate the rescue. Or, transmit your distress call using digital selective calling on Ch 70. USING DIGITAL SELECTIVE CALLING (Ch 70) DISTRESS CALL PROCEDURE 1. While lifting up the switch cover, push and hold

[[DISTRESS DISTRESS]] for 5 sec. until you hear 5 short beeps change to one long beep. 2. Wait for an acknowledgment from a coast station. Channel 16 is automatically selected. 3. Push and hold [[ PTTPTT ]], then transmit the appropriate information as at above. ii RADIO OPERATOR WARNING W ARNING Icom requires the radio operator to meet the FCC Requirements for Radio Frequency Expo-

sure. An omnidirectional antenna with gain not greater than 9 dBi must be mounted a minimum of 5 meters (measured from the lowest point of the antenna) vertically above the main deck and all possible personnel. This is the minimum safe separation distance esti-

mated to meet all RF exposure compliance requirements. This 5 meter distance is based on the FCC Safe Maximum Per-

missible Exposure (MPE) distance of 3 meters added to the height of an adult (2 meters) and is appropriate for all vessels. For watercraft without suitable structures, the antenna must be mounted so as to maintain a minimum of 1 meter vertically between the antenna, (measured from the lowest point of the antenna), to the heads of all persons AND all persons must stay outside of the 3 meter MPE radius. Do not transmit with radio and antenna when persons are within the MPE radius of the antenna, unless such persons

(such as driver or radio operator) are shielded from antenna eld by a grounded metallic barrier. The MPE Radius is the minimum distance from the antenna axis that person should maintain in order to avoid RF exposure higher than the allow-

able MPE level set by FCC. iii FAILURE TO OBSERVE THESE LIMITS MAY ALLOW THOSE WITHIN THE MPE RADIUS TO EXPERIENCE RF RADIATION ABSORPTION WHICH EXCEEDS THE FCC MAXIMUM PERMISSIBLE EXPOSURE (MPE) LIMIT. IT IS THE RESPONSIBILITY OF THE RADIO OPERATOR TO ENSURE THAT THE MAXIMUM PERMISSIBLE EXPO-

SURE LIMITS ARE OBSERVED AT ALL TIMES DURING RADIO TRANSMISSION. THE RADIO OPERATOR IS TO ENSURE THAT NO BYSTANDERS COME WITHIN THE RADIUS OF THE MAXIMUM PERMISSIBLE EXPOSURE LIMITS. Determining MPE Radius THE MAXIMUM PERMISSIBLE EXPOSURE (MPE) RA-

DIUS HAS BEEN ESTIMATED TO BE A RADIUS OF ABOUT 3M PER OET BULLETIN 65 OF THE FCC. THIS ESTIMATE IS MADE ASSUMING THE MAXIMUM POWER OF THE RADIO AND ANTENNAS WITH A MAXI-

MUM GAIN OF 9dBi ARE USED FOR A SHIP MOUNTED SYSTEM. TABLE OF CONTENTS FOREWORD ............................................. i IMPORTANT .............................................. i IN CASE OF EMERGENCY ...................... ii NOTE ........................................................ ii RADIO OPERATOR WARNING ............... iii TABLE OF CONTENTS ........................... iv PRECAUTION .......................................... v EXPLICIT DEFINITIONS .......................... v 1 OPERATING RULES .................. 1 2 PANEL DESCRIPTION........... 2 5 I Front panel ..................................... 2 I Function display .............................. 4 I Microphone...................................... 5 3 BASIC OPERATION ............ 6 10 I Channel selection ........................... 6 I Receiving and transmitting ............. 8 I Call channel programming .............. 9 I Channel comments ......................... 9 I Optional Voice scrambler operation .. 10 4 DUALWATCH/TRI-WATCH ......... 11 I Description .................................... 11 I Operation ...................................... 11 5 SCAN OPERATION ........... 12 13 I Scan types .................................... 12 I Setting tag channels ..................... 13 I Starting a scan .............................. 13 6 DSC OPERATION .............. 14 35 I MMSI code programming ............. 14 I DSC individual ID ......................... 14 I Position and Time programming ... 16 I Position/Time indication ................ 17 I Distress call .................................. 18 I Transmitting DSC calls ................. 21 I Receiving DSC calls ..................... 29 I Received messages ..................... 32 I DSC Set mode .............................. 34 7 OTHER FUNCTIONS .......... 3637 I Intercom operation ........................ 36 I Microphone lock function .............. 37 8 SET MODE ........................ 38 41 I Set mode programming ................ 38 I Set mode items ............................. 39 9 CONNECTIONS AND MAINTENANCE ................. 42 47 I Supplied accessories .................... 42 I Antenna ........................................ 42 I Fuse replacement ......................... 42 I Cleaning ....................................... 42 I Connections .................................. 43 I Mounting the transceiver .............. 44 I Optional unit installation ............... 46 I Dimensions ................................... 47 10 TROUBLESHOOTING .............. 48 11 CHANNEL LIST ........................ 49 12 SPECIFICATIONS AND OPTIONS ........................... 50 51 I Specications ............................... 50 I Options ......................................... 51 13 HM-127 REMOTE-CONTROL MICROPHONE ................... 52 66 I Panel description .......................... 52 I Function display ............................ 54 I Channel selection ......................... 56 I Receiving and transmitting ........... 57 I Lock functions ............................... 58 I Display backlighting ...................... 58 I Monitor function ............................ 59 I RF attenuator function .................. 59 I Call channel programming ............ 59 I Optional Voice scrambler operation .. 60 I Dualwatch/Tri-watch operation ..... 60 I Starting a scan .............................. 61 I Setting tag channels ..................... 61 I Set mode programming ................ 62 I Intercom operation ........................ 63 I Channel comments ....................... 63 I HM-127 supplied accessories ...... 64 I Installation .................................... 65 TEMPLATE 1 2 3 4 5 6 7 8 9 10 11 12 13 iv PRECAUTION RWARNING! NEVER connect the transceiver to an AC outlet. This may pose a fire hazard or result in an electric shock. CAUTION: Changes or modications to this device, not ex-

pressly approved by Icom Inc., could void your authority to operate this device under FCC regulations. NEVER connect the transceiver to a power source of more than 16 V DC or use reverse polarity. This will ruin the trans-

ceiver. NEVER cut the DC power cable between the DC plug and fuse holder. If an incorrect connection is made after cutting, the transceiver may be damaged. NEVER place the transceiver where normal operation of the vessel may be hindered or where it could cause bodily injury. KEEP the transceiver at least 3.3 ft (1 m) away from the ships navigation compass. DO NOT use or place the transceiver in areas with temper-

atures below 4F (20C) or above +140F (+60C) or, in areas subject to direct sunlight, such as the dashboard. AVOID the use of chemical agents such as benzine or al-

cohol when cleaning, as they may damage the transceiver surfaces. v BE CAREFUL! The transceiver rear panel will become hot when operating continuously for long periods. Place the transceiver in a secure place to avoid inadvertent use by children. BE CAREFUL! The transceiver and optional HM-127 em-

ploy waterproof construction, which corresponds to JIS wa-

terproof specication, Grade 7 (1 m/30 min.). However, once the transceiver or microphone has been dropped, water-

proong cannot be guaranteed due to the fact that the case may be cracked, or the waterproof seal damaged, etc. EXPLICIT DEFINITIONS WORD DEFINITION RRWARNING Personal injury, fire hazard or electric shock may occur. CAUTION Equipment damage may occur. NOTE If disregarded, inconvenience only. No risk or personal injury, fire or electric shock. DDPRIORITIES Read all rules and regulations pertaining to priorities and keep an up-to-date copy handy. Safety and distress calls take priority over all others. You must monitor Channel 16 when you are not operating on another channel. False or fraudulent distress signals are prohibited and pun-

ishable by law. DDPRIVACY Information overheard but not intended for you cannot law-

fully be used in any way. Indecent or profane language is prohibited. DDRADIO LICENSES

(1) SHIP STATION LICENSE You must have a current radio station license before using the transceiver. It is unlawful to operate a ship station which is not licensed. Inquire through your dealer or the appropriate government agency for a Ship-Radiotelephone license application. This government-issued license states the call sign which is your crafts identication for radio purposes. OPERATING RULES 1

(2) OPERATORS LICENSE A Restricted Radiotelephone Operator Permit is the license most often held by small vessel radio operators when a radio is not required for safety purposes. 1 The Restricted Radiotelephone Operator Permit must be posted or kept with the operator. Only a licensed radio opera-

tor may operate a transceiver. However, non-licensed individuals may talk over a transceiver if a licensed operator starts, supervises, ends the call and makes the necessary log entries. Keep a copy of the current government rules and regulations handy. Radio license for boaters (U.S.A. only) The Telecommunications Act of 1996 permits recreational boaters to have and use a VHF marine radio, EPIRB, and marine radar without having an FCC ship station license. Boaters traveling on international voyages, having an HF single sideband radiotelephone or marine satellite terminal, or required to carry a marine radio under any other regula-

tion must still carry an FCC ship station license. For further information, see the FCC Ship Radio Stations Fact Sheet. 1 2 PANEL DESCRIPTION I Front panel

!1

!0 o i Speaker Function display VHF MARINE iM502 q VOLUME CONTROL [[VOLVOL]] (p. 8) Adjusts the audio level. w POWER KEY [[POWER POWER]]

Push to turn the transceiver power ON or OFF. DISTRESS e SQUELCH CONTROL [[SQLSQL]] (p. 8) Sets the squelch threshold level. WATERPROOF DSC/ENT POS SCAN TAG CH/WX DW U/I/C 916 POWER VOL HI/LO SQL LO/DX IC SCR r TRANSMIT POWER KEY [[HI/LOHI/LO]]

Toggles power high or low when pushed. (p. 8) Some channels are set to low power only. While pushing this key, some keys perform secondary functions. t CHANNEL SELECTOR [[CHANNEL CHANNEL]]

Rotate [[CHANNEL CHANNEL]] to select the operating channels, q w e r t y u Set mode settings, etc. (pgs. 8, 38) While pushing [[HI/LOHI/LO]], rotate [[CHANNEL CHANNEL]] to adjust the brightness of the LCD and key backlight. (p. 37) 2 y ATTENUATOR/INTERCOM/SCRAMBLER KEY

[[LO/DX LO/DX]] ((

Toggles the Attenuator function ON or OFF when SCR) SCR) IC pushed momentarily. (p. 8) LOCAL appears when the Attenuator is in use. The order of indication precedence is SP OFF, LOCAL and CALL. Activates an optional Intercom function when pushed for 1 sec. (p. 36) Calls optional HM-127 REMOTE-CONTROL MICROPHONE when pushed and held while in Intercom mode. (p. 36) While pushing [[ HI/LOHI/LO ]], activates an optional Voice scrambler function. (p. 10) The optional Voice scrambler function cannot be used on Channel 16 and 70. u CHANNEL 16/CALL CHANNEL KEY [[

1616 Selects Channel 16 when pushed. (p. 6) Selects call channel when pushed for 1 sec. (p. 6) 99]]

CALL appears when call channel is selected. SP OFF and LOCAL indications have priority. Push for 3 sec. to enter call channel programming con-

dition when call channel is selected. (p. 9) While pushing [[HI/LOHI/LO]], enters channel comments pro-

gramming condition. (p. 9) Enters Set mode when pushed while turning power ON.

(p. 38) PANEL DESCRIPTION 2 i DISTRESS KEY [[DISTRESS DISTRESS]]

Transmits Distress call when pushed for 5 sec. (p. 18) o CHANNEL/DUALWATCH/TRI-WATCH KEY

[[CH/WX CH/WX]] ((

Selects and toggles the regular channels and weather U/I/C) U/I/C) DW channel when pushed momentarily. (p. 7) While pushing [[HI/LOHI/LO]], selects one of 3 regular chan-

nels in sequence when pushed. (p. 7) International, U.S.A. and Canadian channels are available for regular channels. Starts Dualwatch or Tri-watch when pushed for 1 sec.

(p. 11) Stops Dualwatch or Tri-watch when either is activated.

!0 SCAN KEY [[SCAN SCAN]] ((

TAG

)) (p. 13) Starts and stops Normal or Priority scan when tag

(scanned) channels are programmed. Push [[SCAN SCAN]] ((

TAG

)) for 1 sec. to set or cancel the dis-

played channel as a tag (scanned) channel. While pushing [[HI/LOHI/LO]], push for 3 sec. to clear or set all tag channels.

!1 DSC/POSITION KEY [[DSC/ENT DSC/ENT]] ((

POS

)) Selects the DSC menu when pushed. (p. 14) Shows current position and time from a GPS receiver, etc. when pushed for 1 sec. (p. 17) 2 3 2 PANEL DESCRIPTION I Function display io q w e r INT CALL SC DUP BUSY 25W TAG CALLING q BUSY/TRANSMIT INDICATOR (p. 8) BUSY appears when receiving a signal or when the squelch opens. TX appears while transmitting. w POWER INDICATOR (p. 8) 25W appears when high power is selected. 1W appears when low power is selected. t y u e TAG CHANNEL INDICATOR (p. 13) Appears when a tag channel is selected. r CHANNEL COMMENT INDICATOR Channel comment appears if programmed. (p. 9) Low Battery blinks when the battery voltage drops to approx. 10 V DC or below. DUAL appears during Dualwatch; TRI appears dur-

ing Tri-watch. (p. 11) t SCRAMBLER INDICATOR (p. 10) Appears when an optional Voice scrambler is activated. 4 y DUPLEX INDICATOR (p. 7) Appears when a duplex channel is selected. Duplex channel has a different TX and RX frequency. u CHANNEL NUMBER READOUT Indicates the selected operating channel number. A appears when a simplex channel is selected. b ap-

pears when a receive only channel for a Canadian chan-

nel group is selected. (p. 7) In Set mode, indicates the selected condition. (p. 38) i CHANNEL GROUP INDICATOR (p. 7) Indicates whether an International INT, U.S.A. USA, Canadian CAN or weather WEATHER channel is se-

lected. o CALL CHANNEL INDICATOR CALL appears when call channel is selected. (p. 6) SP OFF appears when the internal speaker is turned OFF in Set mode. (p. 40) LOCAL appears when the Attenuator is in use. (p. 8) The order of indication precedence is SP OFF, LOCAL and CALL. PANEL DESCRIPTION 2 I Microphone q w Speaker Microphone e q PTT SWITCH [[PTTPTT]] (p. 8) Push and hold to transmit; release to receive. w CHANNEL UP/DOWN KEYS [[ YYYY]]/[[ ZZZZ]] (pgs. 8, 38) Push either key to change the operating channel, Set mode settings, etc. e CHANNEL 16/CALL CHANNEL KEY [[16/916/9]]

Push to select Channel 16; push for 1 sec. to select call channel (default is Channel 9). (p. 6) While pushing [[16/916/9]], turn power ON to toggle the Lock function ON or OFF. (p. 37) 2 5 3 BASIC OPERATION I Channel selection DDChannel 16 Channel 16 is the distress and safety channel. It is used for establishing initial contact with another station and for emer-

gency communications. Channel 16 is monitored during both Dualwatch and Tri-watch. While standing by, you must moni-

tor Channel 16. Push [[

Push [[CH/WX 1616 CH/WX]] to return to the condition before selecting CHANNEL]] to select an operating 99]] momentarily to select Channel 16. Channel 16, or rotate [[CHANNEL channel. DDChannel 9 (Call channel) Each regular channel group has a separate leisure-use call channel. Call channel is monitored during Tri-watch. Call channels can be programmed (p. 9) and are used to store your most often used channels in each channel group for quick recall. Push [[

1616 99]] for 1 sec. to select call channel of the selected channel group. CALL and call channel number appear. Each channel group may have an independent call channel after programming a call channel. Push 916 INT 25W TAG CALLING 6 Push [[CH/WX CH/WX]] to return to the condition before selecting CHANNEL]] to select an operating call channel, or rotate [[CHANNEL channel. Push for 1 sec. 916 INT CALL 25W TAG CALLING Convenient: Using microphone Push [[16/916/9]] momentarily to select Channel 16. Push [[16/916/9]] for 1 sec. to select call channel. Push [[ YYYY]]/[[ ZZZZ]] to select any other operating channel. DDU.S.A., Canadian and International channels There are 57 U.S.A., 61 Canadian and 57 International chan-

nels. These channel groups may be specied for the operat-

ing area. DDWeather channels There are 10 weather channels. Used for monitoring weather channels from the NOAA (National Oceanographic and At-

mospheric Administration) broadcasts. BASIC OPERATION 3 q Push [[CH/WX CH/WX]] ((

DW U/I/C) to select a regular channel. U/I/C) If a weather channel appears, push [[CH/WX CH/WX]] ((

DW w While pushing [[ HI/LOHI/LO ]], push [[ CH/WX CH/WX ]] ((

U/I/C) again. U/I/C) to DW U/I/C) U/I/C) change the channel group, if necessary. U.S.A., International (INT) and Canadian channels can be se-

lected in sequence. e Rotate [[CHANNEL CHANNEL]] to select a channel. DUP appears for duplex channels. A appears when a simplex channel is selected. b appears when a receive only channel for a Canadian channel group is se-

lected. USA U.S.A. channels Push HI/LO

CH/WX DW U/I/C INT DUP CAN Canadian channels International channels The transceiver can detect a Weather alert tone on the se-

lected weather channel while receiving that channel, during standby on a regular channel or while scanning. See Weather alert on p. 39. q Push [[CH/WX CH/WX]] once or twice to select a weather channel. WEATHER appears when a weather channel is selected. WX ALT appears when the Weather alert function is in use.

(p. 39) WEATHER Push once or twice CH/WX DW U/I/C When Weather alert is OFF. WXALT When Weather alert is ON. w Rotate [[CHANNEL CHANNEL]] to select a channel. 3 7 3 BASIC OPERATION I Receiving and transmitting CAUTION: Transmitting without an antenna may dam-

age the transceiver. q Push [[POWER w Set the audio and squelch levels. POWER]] to turn power ON. Rotate [[SQLSQL]] fully counterclockwise in advance. Rotate [[VOLVOL]] to adjust the audio output level. Rotate [[SQLSQL]] clockwise until the noise disappears. e To change the channel group, push [[CH/WX CH/WX]] ((

DW U/I/C) U/I/C) while pushing [[HI/LOHI/LO]]. (p. 7) r Rotate [[CHANNEL CHANNEL]] or push [[ YYYY]]/[[ ZZZZ]] on the microphone to select the desired channel. When receiving a signal, BUSY appears and audio is emitted from the speaker. Further adjustment of [[VOLVOL]] may be necessary. Use the optional Voice scrambler function for privacy. (p. 10) t Push [[LO/DX LO/DX]] to turn the receive Attenuator function ON or OFF, if necessary. LOCAL appears when the receive Attenuator is in use. y Push [[HI/LOHI/LO]] to select the output power, if necessary. 25W or 1W appears when high or low power is selected, re-

spectively. Choose low power for short range communications, choose high power for longer distance communications. Some channels are for selecting low power only. 8 u Push and hold [[PTTPTT]] to transmit, then speak into (Mi-

crophone). TX appears. Channel 70 cannot be used for transmission other than DSC. Simplex channels, 3, 21, 23, 61, 64, 81, 82 and 83 CANNOT be lawfully used by the general public in U.S.A. waters. i Release [[PTTPTT]] to receive. q y e u i VHF MARINE iM502 DISTRESS WATERPROOF DSC/ENT POS SCAN TAG CH/WX DW U/I/C 916 POWER VOL HI/LO SQL LO/DX IC SCR

(Microphone) w r t r IMPORTANT: To maximize the readability of your trans-

mitted signal, pause a few sec. after pushing [[PTTPTT]], hold the microphone 2 to 4 inches (5 to 10 cm) from your mouth and speak into (Microphone) at a normal voice level. I Call channel programming Call channel is used to select Channel 9 (default), however, you can program the call channel with your most often-used channels in each channel group for quick recall. q While pushing [[HI/LOHI/LO]], push [[CH/WX U/I/C) one or U/I/C) more times to select the desired channel group (U.S.A., In-

ternational, Canada) to be programmed. CH/WX]] ((

DW w Push [[

1616 99 ]] for 1 sec. to select call channel of the se-

lected channel group. CALL and call channel number appear. The order of indication precedence is SP OFF, LOCAL and CALL. 1616 e Push [[

99]] again for 3 sec.

(until a long beep changes to 2 short beeps) to enter call channel programming condition. Channel number starts blinking. INT CALL 25W TAG CALLING r Rotate [[CHANNEL CHANNEL]] to se-

lect the desired channel. t Push [[

1616 99]] to program the displayed channel as call channel. Push [[CH/WX U/I/C) to cancel. U/I/C) The channel number stops blinking. CH/WX]] ((

DW 25W TAG INTL INT CALL DUP BASIC OPERATION 3 I Channel comments Memory channels can be labeled with alphanumeric com-

ments of up to 10 characters each. Capital letters, small letters, numerals, some symbols (! " #

$ % & ' ( ) * + , - . / =) and space can be used. q Select the desired channel. Cancel dualwatch, Tri-watch or scan in advance. w While pushing [[HI/LOHI/LO]], push [[

1616 99]] to edit the channel comment. A cursor appears and blinks. INT 25W TAG LEASURE e Select the desired character by rotating [[CHANNEL CHANNEL]] or by pushing [[ YYYY]]/[[ ZZZZ]] on the microphone. Push [[CH/WX ward, respectively. CH/WX]] or [[SCAN SCAN]] to move the cursor forward or back-

r Push [[

1616 99]] to input and set the comment. Push [[HI/LOHI/LO]] to cancel. The cursor disappears. t Repeat steps q to r to program the other channels, if de-

sired. 3 9 3 BASIC OPERATION I Optional Voice scrambler operation DDActivating the Scrambler The optional Voice scrambler provides private communica-

tions. In order to receive or send scrambled transmissions you must rst activate the Scrambler function. To activate the function, an optional UT-98 or UT-112 is necessary. See p. 41 for setting the scrambler unit. Ask your dealer for details. DDProgramming scrambler codes There are 128 or 32 codes (0 to 127 or 1 to 32) available for programming when the optional UT-98 or UT-112 is installed. In order to understand one another, all transceivers in your group must have the same scramble code. This function may not be available depending on dealer setting. The Scrambler function automatically turns OFF when Channel 16 or 70 is selected. q Select an operating channel other than Channel 16 or 70. w While pushing [[HI/LOHI/LO]], push [[LO/DX SCR) to turn SCR) LO/DX]] ((

IC the optional Scrambler function ON. SC appears. e To turn the Scrambler function OFF, repeat step w. SC disappears.

[Example]: Programming scrambler code 8. 99]], turn power ON to enter Set mode. q Turn power OFF. w While pushing [[

e After the display appears, release [[

r Push [[

1616 1616 1616 99]]. 99]] one or more times to select the scrambler code. Scrambler Code appears. t Rotate [[CHANNEL y Turn power OFF, then ON again to exit Set mode. CHANNEL]] to select the desired scrambler code.

+916 POWER SetMode 916 SetMode SetMode Enter Set mode Beep Push one or more times. Scrambler Code Select code Scrambler Code POWER Turn OFF Set mode Scrambler code item 10 DUALWATCH/TRI-WATCH 4 I Description Dualwatch monitors Channel 16 while you are receiving an-

other channel; Tri-watch monitors Channel 16 and call chan-

nel while receiving another channel. DUALWATCH/TRI-WATCH SIMULATION Call channel Dualwatch Tri-watch If a signal is received on Channel 16, Dualwatch/Tri-watch pauses on Channel 16 until the signal disappears. If a signal is received on call channel during Tri-watch, Tri-watch becomes Dualwatch until the signal disappears. To transmit on the selected channel during Dualwatch/Tri-watch, push and hold [[PTTPTT]]. I Operation q Select Dualwatch or Tri-watch in Set mode. (p. 39) w Select the desired operating channel. e Push [[CH/WX CH/WX]] ((

DW U/I/C) for 1 sec. to start Dualwatch or U/I/C) Tri-watch. DUAL appears during Dualwatch; TRI appears during Tri-

watch. A beep tone sounds when a signal is received on Channel 16. r To cancel Dualwatch or Tri-watch, push [[CH/WX CH/WX]] ((

DW U/I/C) U/I/C) again.

[Example]: Operating Tri-watch on INT Channel 25. 25W TAG TRI BUSY 25W TAG TRI BUSY 25W TAG TRI 25W TAG TRI INT DUP 16 INT CALL 16 INT DUP 16 INT DUP 16 Tri-watch starts. Signal is received on call channel. Signal received on Channel 16 takes priority. Tri-watch resumes after the signal disappears. 3 4 11 5 SCAN OPERATION I Scan types Scanning is an efcient way to locate signals quickly over a wide frequency range. The transceiver has Priority scan and Normal scan. When the Weather alert function is in use, the selected weather channel is checked while scanning. (p. 39) Set the tag channels (scanned channel) before scanning. Clear the tag channels which inconveniently stop scanning, such as those for digital communication use. Choose Priority or Normal scan in Set mode. (p. 39) PRIORITY SCAN NORMAL SCAN CH 01 CH 02 CH 01 CH 02 CH 06 CH 16 CH 03 CH 06 CH 03 CH 05 CH 04 CH 05 CH 04 Priority scan searches through all tag channels in se-

quence while monitoring Channel 16. When a signal is de-

tected on Channel 16, scan pauses until the signal disap-

pears; when a signal is detected on a channel other than Channel 16, scan becomes Dualwatch until the signal dis-

appears. Normal scan, like Priority scan, searches through all tag channels in sequence. However, unlike Priority scan, Channel 16 is not checked unless Channel 16 is set as a tag channel. 12 I Setting tag channels For more efficient scanning, add desired channels as tag channels or clear tag channels for unwanted channels. Chan-

nels not tagged will be skipped during scanning. Tag chan-

nels can be assigned to each channel group (U.S.A., Interna-

tional, Canada) independently. q While pushing [[HI/LOHI/LO]], push [[CH/WX CH/WX]] ((

DW U/I/C) one or U/I/C) more times to select the desired channel group. w Select the desired channel to be set as a tag channel. e Push [[SCAN

)) for 1 sec. to set the displayed channel SCAN]] ((

TAG as a tag channel. TAG appears in the display. r To cancel the tag channel setting, repeat step e. TAG disappears. Convenient: Clearing (setting) all tagged channels While pushing [[HI/LOHI/LO]], push [[SCAN

)) for 3 sec. (until a long beep changes to 2 short beeps) to clear all tag channels setting in the channel group. Repeat above procedure to set all tag channels. SCAN]] ((

TAG SCAN OPERATION 5 I Starting a scan Set scan type (Priority or Normal scan) and scan resume timer in advance using Set mode. (p. 39) q Set tag channels as described at left. w Make sure the squelch is closed to start a scan. e While pushing [[HI/LOHI/LO]], push [[CH/WX U/I/C) one or U/I/C) more times to select the channel group, if desired. CH/WX]] ((

DW r Push [[SCAN SCAN]] to start Priority or Normal scan. Pri Scan 16 or Normal Scan appears in the function display. When a signal is detected, scan pauses until the signal disap-

pears or resumes after pausing 5 sec. according to Set mode setting. (Channel 16 is still monitored during Priority scan.) Rotate [[ CHANNEL change the scanning direction or resume the scan manually. 16 blinks and a beep tone sounds when a signal is received on Channel 16 during Priority scan. t To stop the scan, push [[SCAN SCAN]]. CHANNEL ]] to check the scanning tag channels, to

[Example]: Starting a Normal scan. INT DUP 25W TAG INTL Push SCAN TAG INT 25W TAG Normalscan DUP INT BUSY 25W TAG Normalscan DUP Scan starts. When a signal is received 5 13 6 DSC OPERATION I MMSI code programming The 9-digit MMSI (Maritime Mobile Service Identity: DSC self ID) code can be programmed at power ON. I DSC individual ID A total of 40 DSC address IDs can be programmed and named with up to 10 characters. DDProgramming Address ID/Group ID q Push [[DSC/ENT w Rotate [[ CHANNEL CHANNEL ]]

DSC/ENT]] to enter the DSC menu. to select Set up, push

[[DSC/ENT DSC/ENT]]. SelItem POSReport DTRSSet Setup e Rotate [[ CHANNEL CHANNEL ]]

[[DSC/ENT DSC/ENT]]. to select Add ID, push Setup AddID DeleteID OffsetTime This function is not available when the MMSI code has been programmed by the dealer. This code programming can be performed only twice. q Turn power OFF. w While pushing [[DSC/ENT DSC/ENT]], turn power ON to enter MMSI code programming condition. e After the display appears, release [[DSC/ENT DSC/ENT]]. SetMMSI 23456789 r Edit the specic MMSI code by rotating [[CHANNEL CHANNEL]]. CH/WX]] or [[SCAN SCAN]] to move the cursor forward or back-

Push [[CH/WX ward, respectively. t Input the 9 digit codes, then push [[DSC/ENT DSC/ENT]] to set the code. Returns to the normal operation. 14 DSC OPERATION 6 r Set the individual ID and ID name. CH/WX ]] or [[ SCAN Edit the 9 digits of the appropriate distress ID by using [[CHAN CHAN--

NELNEL]].

- Push [[ CH/WX backward, respectively. 1st digit 0 is fixed for a group ID. Thus an address ID input cannot start with 0. When you input 1st digit 0 and other 8 digits, the ID is automatically registered as a group ID. SCAN ]] to move the cursor forward or DDDeleting Address ID/Group ID q Push [[DSC/ENT w Rotate [[ CHANNEL CHANNEL ]]

DSC/ENT]] to enter the DSC menu. to select Set up, push

[[DSC/ENT DSC/ENT]]. e Rotate [[ CHANNEL CHANNEL ]] to select Delete ID, push

[[DSC/ENT DSC/ENT]]. When no address ID is programmed, the transceiver exits the DSC menu automatically. AddID ID:4 NAME:

Setup AddID DeleteID OffsetTime t Push [[DSC/ENT normal operation. DSC/ENT]] to program and exit the condition to the r Rotate [[ CHANNEL CHANNEL ]] to select the desired ID name for deleting. DeleteID Bill Ricky Tom t The delete confirmation display will appear when

[[DSC/ENT DSC/ENT]] is pushed. Push [[HI/LOHI/LO]] to delete ID and exit the DSC Menu. Push [[DSC/ENT DSC/ENT]] to cancel deleting and exit the DSC Menu. 6 15 6 DSC OPERATION I Position and Time programming A distress call should include the ships position and time. If no GPS is connected, your position and UTC (Universal Time Coordinated) time should be input manually. They are in-

cluded automatically when a GPS receiver (NMEA0183 ver. 2.0 or 3.01) is connected. This manual programming is not available when a GPS re-

ceiver (NMEA0183 ver. 2.0 or 3.01) is connected. q Push [[DSC/ENT w POS Input is selected automatically, push [[DSC/ENT DSC/ENT]]. DSC/ENT]] to enter the DSC menu. InputPOS 4.

-. Null[H/L]

CH/WX]] or [[SCAN e Edit the digit of your latitude data by using [[CHANNEL CHANNEL]]. SCAN]] to move the cursor forward or back-

Push [[CH/WX ward, respectively. After editing latitude data, select N; North latitude or S; South latitude. Push [[HI/LOHI/LO]] to clear the position data. 16 r Edit the digit of your longitude data by using [[CHANNEL CHANNEL]]. CH/WX]] or [[SCAN SCAN]] for cursor movement. Push [[CH/WX After editing longitude data, select E; East longitude or W;

West longitude. Push [[HI/LOHI/LO]] to clear the position data. t Push [[DSC/ENT DSC/ENT]] to set the position and advance to the time setting condition. Push [[

DSC menu. 99]] or [[LO/DX 1616 LO/DX]] to abandon the setting and exit the Inputtime UTC4:

Null[H/L]

y Edit the digit of the current UTC time by using [[CHAN CHAN--

NELNEL]]. Push [[CH/WX Push [[HI/LOHI/LO]] to clear the time data. CH/WX]] or [[SCAN SCAN]] for cursor movement. u Push [[DSC/ENT DSC/ENT]] to set the time, and exit the DSC menu. LO/DX]] to abandon the setting and exit the 1616 99]] or [[LO/DX Push [[

DSC menu. I Position/Time indication When a GPS receiver (NMEA0183 ver. 2.0 or 3.01) is con-

nected, the transceiver displays the current position and time. When no GPS receiver is connected, the transceiver displays the manually entered position and time. A GPS receiver appropriate for the IC-M502A is not supplied from Icom. A GPS receiver with NMEA0183 ver. 2.0 or 3.01 format is required for position indication. Ask your dealer about suitable GPS receivers. Push [[DSC/ENT DSC/ENT]] ((

POS

)) for 1 sec. to display the current po-

sition and time. MNL (manual) appears instead of the GPS indication when no GPS is connected and the position/time data is entered man-

ually. 3434.123N 13534.123E GPSUTC12:34 CALLING DSC OPERATION 6 When connecting GPS receiver is compatible several sentence formatteres, the order of input precedence is RMC, GGA, GNS and GLL. When sentence formatter RMC is received, time indi-

cation includes a date, and UTC time only.

?? may blink instead of position and time indications when the GPS data is invalid, or has not been manually updated after 4 hours. Sentence formatter RMC 3434.123N 13534.123E JUL1711:47 CALLING Sentence formatteres GGA, GNS, GLL 3434.123N 13534.123E GPSUTC11:47 CALLING No offset time 3434.123N 13534.123E GPSLOC01:47 CALLING Offset time is 10 hours. (p.34) 6 17 6 DSC OPERATION I Distress call A Distress call should be transmitted, if in the opinion of the Master, the ship or a person is in distress and requires imme-

diate assistance. NEVER USE THE DISTRESS CALL WHEN YOUR SHIP IS NOT IN AN EMERGENCY. A DISTRESS CALL CAN BE USED ONLY WHEN IMMEDIATE HELP IS NEEDED. DDSimple call q Conrm no Distress call is being received. w While lifting up the switch cover, push [[DISTRESS DISTRESS]] for 5 sec. to transmit the Distress call. Emergency channel (Ch 70) is automatically selected and the Distress call is transmitted. When no GPS is connected, input your position and UTC time, if possible. DistressTX 3523.123N 13535.123E GPSUTC12:34 e After transmitting the call, the transceiver waits for an ac-

knowledgment call on Ch 70. The Distress call is automatically transmitted every 3.5 to 4.5 minutes. 18 Distress Completed WaitforACK r After receiving the acknowledgment, reply using the mi-

crophone. Received DistressACK

<TokyoCG A distress alert contains (default);

Kind of distress : Undesignated distress Position data

: GPS or manual input position data held for 23.5 hrs or until the power is turned OFF. The Distress call is repeated every 3.54.5 min., until re-

ceiving an acknowledgement. Push [[DISTRESS DISTRESS]] to transmit a renewed Distress call, if required. Push any key (except [[DISTRESS DISTRESS]]) to cancel the Call repeat mode.

?? may blink instead of position and time indications when the GPS data is invalid, or has not been manually updated after 4 hours. DDNormal call The nature of the Distress call should be included in the Dis-

tress call. When a GPS receiver (NMEA0183 ver. 2.0 or 3.01) is con-

nected, next steps r, t (Current position/time program-

ming) do not appear. Go to step y. (next page) DSC OPERATION 6 q Push [[DSC/ENT w Rotate [[ CHANNEL DSC/ENT]] to enter the DSC menu. CHANNEL ]] to select DTRS Set, push

[[DSC/ENT DSC/ENT]]. SelItem POSReport RCVCalls DTRSSet e Rotate [[CHANNEL CHANNEL]] to select the nature of the distress, push [[DSC/ENT DSC/ENT]]. Undesignated, Explosion, Flooding, Collision, Grounding, Capsizing, Sinking, Adrift (Disable adrift), Abandoning (Aban-

doning ship), Piracy (Piracy attack) and MOB (Man overboard) are available. The selected nature of the distress is stored for 10 minutes after programming is nished. SelNature Undesign Explosion Flooding r The position information appears. Set the current posi-

tion, push [[DSC/ENT DSC/ENT]]. InputPOS 4.

-. Null[H/L]

CH/WX]] or [[SCAN SCAN]] for cursor movement. Edit the digit of your position data by using [[CHANNEL CHANNEL]].

- Push [[CH/WX

- After editing latitude data, select N; North latitude or S;

South latitude.

- After editing longitude data, select E; East longitude or W;

West longitude.

- Push [[HI/LOHI/LO]] to clear the position data. t The time information appears. Set the current UTC time, DSC/ENT]]. push [[DSC/ENT Inputtime UTC4:

Null[H/L]

CHANNEL]]. Edit the digit of the current UTC time by using [[CHANNEL

- Push [[CH/WX

- Push [[HI/LOHI/LO]] to clear the time data. SCAN]] for cursor movement. CH/WX]] or [[SCAN 6 19 6 DSC OPERATION y Push [[DISTRESS DISTRESS]] for 5 sec. to transmit the Distress call. SetisOK Push[DTRS]

for5sec u After transmitting the call, the transceiver waits for an ac-

knowledgment call on Ch 70. The Distress call is automatically transmitted every 3.5 to 4.5 minutes. Distress Completed WaitforACK i After receiving the acknowledgment, reply using the mi-

crophone. Received DistressACK

<TokyoCG A distress alert contains;

Kind of distress : Selected nature of the distress. Position data: GPS or manual input position data held for 23.5 hrs or until the power is turned OFF. The Distress call is repeated every 3.54.5 min., until re-

ceiving an acknowledgement. Push [[DISTRESS DISTRESS]] to transmit a renewed Distress call, if required. Push any key (except [[DISTRESS DISTRESS]]) to cancel the Call repeat mode.

?? may blink instead of position and time indications when the GPS data is invalid, or has not been manually updated after 4 hours. 20 I Transmitting DSC calls DDTransmitting Individual call The Individual call function allows you to transmit a DSC sig-

nal to a specic ship only. q Push [[DSC/ENT w Rotate [[ CHANNEL DSC/ENT]] to enter the DSC menu. CHANNEL ]] to select Individual, push

[[DSC/ENT DSC/ENT]]. SelItem POSInput Individual Group e Rotate [[CHANNEL CHANNEL]] to select the desired pre-programmed Manual Input, push individual address or

[[DSC/ENT DSC/ENT]]. The ID code for the Individual call can be set in advance. (p. 14) When Manual Input is selected, set the 9-digit ID code

(1st digit must not be 0) for the individual you wish to call by CHANNEL]]. using [[CHANNEL CH/WX]] or [[SCAN

-Push [[CH/WX

- After 9-digit is input, push [[DSC/ENT DSC/ENT]] to set the ID code. SCAN]] for cursor movement. SelAddress ManualSet Ricky Tom DSC OPERATION 6 r Rotate [[CHANNEL CHANNEL]] to select a desired intership channel or Manual Input, push [[DSC/ENT DSC/ENT]]. CHANNEL]] to When Manual Input is selected, rotate [[CHANNEL select the desired channel other than Channel 70, push

[[DSC/ENT DSC/ENT]]. SelChannel 08 69 77 t Push [[DSC/ENT DSC/ENT]] to transmit the Individual call. If Channel 70 is busy, the transceiver stands by until the channel becomes clear. ToCall,

[DSC/ENT]

ToCancel

[other]

Push [DSC/ENT] to transmit DSC call. Individual Ch70isBUSY ToCancel

[other]

When Ch 70 is busy. 6 21 6 DSC OPERATION y After transmitting the Individual call, standby on Channel 70 until an acknowledgement is received. Individual Completed WaitforACK u When the acknowledgement is received, the display changes to the previously selected channel with beeps. Received AbleACK Routine

<Tom i Push and hold [[PTTPTT]] to communicate your message to the responding ship. 22 DDTransmitting Individual acknowledgement Transmit an acknowledgement (able to comply or unable to comply) when an Individual call for you is received. q Push [[DSC/ENT w Rotate [[ CHANNEL DSC/ENT]] to enter the DSC menu. CHANNEL ]] to select INDV ACK, push

[[DSC/ENT DSC/ENT]]. INDV ACK item appears after an Individual call is received. SelItem POS Input Individual INDVACK e Rotate [[CHANNEL CHANNEL]] to select the desired individual ad-

dress or ID code, push [[DSC/ENT DSC/ENT]]. SelAddress Ricky Tom r Rotate [[ CHANNEL CHANNEL ]]

to select an acknowledgement Able or Unable, push [[DSC/ENT DSC/ENT]]. Comply Able Unable t If you select Unable, select the reason by rotating

[[CHANNEL CHANNEL]], push [[DSC/ENT DSC/ENT]]. No reason given, Congestion, Busy, Queue indication, Sta-

tion Barred, No operator, Operator Unavailable, Equipment Disable, Channel Unable and Mode Unable are available. SelReason NoReason Congestion Busy y Push [[DSC/ENT selected station. DSC/ENT]] to transmit the acknowledgement to the ToCall,

[DSC/ENT]

ToCancel

[other]

DSC OPERATION 6 u After the Individual acknowledgement has been transmit-

ted, the display changes to the channel specified by the calling station, automatically. INDVACK Completed 6 23 6 DSC OPERATION DDTransmitting Group call The Group call function allows you to transmit a DSC signal to a specic group only. q Push [[DSC/ENT w Rotate

[[ CHANNEL CHANNEL ]]

DSC/ENT]] to enter the DSC menu.

[[DSC/ENT DSC/ENT]]. to select Group, push SelChannel 13 67 72 SelItem Individual INDVACK Group e Rotate [[ CHANNEL CHANNEL ]]

to select the desired pre-pro-

grammed group address or Manual Input, push

[[DSC/ENT DSC/ENT]]. The ID code for the Group call can be set in advance. (p. 14) When Manual Input is selected, set the 9-digit ID code

(must be set to 0) for the group you wish to call by using

[[CHANNEL CHANNEL]].

- Push [[CH/WX

- After 9-digit is input, push [[DSC/ENT DSC/ENT]] to set the ID code. SCAN]] for cursor movement. CH/WX]] or [[SCAN SelAddress ManualSet Smith Grp Osaka Grp 24 r Rotate [[CHANNEL CHANNEL]] to select a desired intership channel or Manual Input, push [[DSC/ENT DSC/ENT]]. CHANNEL]] to se-

When Manual Input is selected, rotate [[CHANNEL DSC/ENT]]. lect the desired channel other than Channel 70, push [[DSC/ENT t Push [[DSC/ENT DSC/ENT]] to transmit the Group call. If Channel 70 is busy, the transceiver stands by until the channel becomes clear. ToCall,

[DSC/ENT]

ToCancel

[other]

y After the Group call has been transmitted, the display changes to the previously selected channel. Group Completed u Push and hold [[PTTPTT]] to communicate your message to the DSC/ENT]] to exit the condition. responding ship or push [[DSC/ENT DDTransmitting All Ships call Large ships use Channel 70 as their listening channel. When you want to announce a message to these ships, use the All Ships Call function. q Push [[DSC/ENT w Rotate [[ CHANNEL DSC/ENT]] to enter the DSC menu. CHANNEL ]] to select All Ships, push

[[DSC/ENT DSC/ENT]]. SelItem INDVACK Group AllShips e Push [[DSC/ENT DSC/ENT]] to transmit the All Ships call. Channel 70 is selected and the All Ships call is transmitted. Routine category only is available. ToCall,

[DSC/ENT]

ToCancel

[other]

DSC OPERATION 6 r After the All Ships call has been transmitted, the display changes to Channel 16 automatically. AllShips Completed t Push any key to exit the condition and the display returns to the normal operation. 6 25 6 DSC OPERATION DDTransmitting Position Request call Transmit a Position Request call when you want to know a specic ships current position, etc. q Push [[DSC/ENT w Rotate [[CHANNEL DSC/ENT]] to enter the DSC menu. CHANNEL]] to select POS Request, push

[[DSC/ENT DSC/ENT]]. SelItem Group Allships POSRequest e Rotate [[ CHANNEL CHANNEL ]]

to select the desired pre-pro-

grammed individual address or Manual Input, push

[[DSC/ENT DSC/ENT]]. The ID code for the Position Request call can be set in advance.

(p. 14) When Manual Input is selected, set the 9-digit ID code

(1st digit must not be 0) for the individual you wish to call by CHANNEL]]. using [[CHANNEL CH/WX]] or [[SCAN

- Push [[CH/WX

- After 9-digit is input, push [[DSC/ENT DSC/ENT]] to set the ID code. SCAN]] for cursor movement. SelAddress ManualSet Ricky Tom 26 r Push [[DSC/ENT DSC/ENT]] to transmit the Position Request call. ToCall,

[DSC/ENT]

ToCancel

[other]

t After the Position Request call has been transmitted, the following indication is displayed. POSREQ Completed WaitforACK y Push any key to exit the condition and return to the normal operation. DDTransmitting Position Report call Transmit a Position Report call when you want to announce your own position to a specic ship and to get answer, etc. When a GPS receiver (NMEA0183 ver. 2.0 or 3.01) is con-

nected, next steps r, t (Current position/time program-

ming) do not appear. Go to step y. (next page) DSC OPERATION 6 q Push [[DSC/ENT w Rotate [[ CHANNEL DSC/ENT]] to enter the DSC menu. CHANNEL ]] to select POS Report, push

[[DSC/ENT DSC/ENT]]. SelItem Allships POSRequest POSReport e Rotate [[ CHANNEL CHANNEL ]]

to select the desired pre-pro-

grammed individual address or Manual Input, push

[[DSC/ENT DSC/ENT]]. The ID code for the Position Report call can be set in advance.

(p. 14) When Manual Input is selected, set the 9-digit ID code

(1st digit must not be 0) for the individual you wish to call by CHANNEL]]. using [[CHANNEL CH/WX]] or [[SCAN

- Push [[CH/WX

- After 9-digit is input, push [[DSC/ENT DSC/ENT]] to set the ID code. SCAN]] for cursor movement. SelAddress ManualSet Ricky Tom r The position information appears. Set the current posi-

tion, push [[DSC/ENT DSC/ENT]]. InputPOS 4.

-. Null[H/L]

CH/WX]] or [[SCAN SCAN]] for cursor movement. Edit the digit of your position data by using [[CHANNEL CHANNEL]].

- Push [[CH/WX

- After editing latitude data, select N; North latitude or S;

South latitude.

- After editing longitude data, select E; East longitude or W;

West longitude.

- Push [[HI/LOHI/LO]] to clear the position data. t The time information appears. Set the current UTC time, DSC/ENT]]. push [[DSC/ENT Inputtime UTC4:

Null[H/L]

CHANNEL]]. Edit the digit of the current UTC time by using [[CHANNEL

- Push [[CH/WX

- Push [[HI/LOHI/LO]] to clear the time data. SCAN]] for cursor movement. CH/WX]] or [[SCAN 6 27 6 DSC OPERATION y Push [[DSC/ENT DSC/ENT]] to transmit the Position Report call. ToCall,

[DSC/ENT]

ToCancel

[other]

u After the Position Report call has been transmitted, the fol-

lowing indication is displayed POSReport Completed WaitforACK i Push any key to exit the condition and return to the normal operation. DDTransmitting Position Reply call Transmit a Position Reply call when a Position Request call is received. q When a Position Request call is received, the following in-

dication is displayed. Received POSRequest

<Ricky Ans[DSC/ENT]

w Push [[DSC/ENT DSC/ENT]] to reply to the Position Request call;

push other key to ignore the Position Request call. DDTransmitting Position Report Reply call Transmit a Position Report Reply call when a Position Report call is received. q When a Position Report call is received, the following in-

dication is displayed. Received POSReport Ans[DSC/ENT]

w Push [[ DSC/ENT DSC/ENT ]] to reply to the Position Report call;

push any key to ignore the Position Report call. 28 I Receiving DSC calls DDReceiving a Distress call While monitoring Channel 70 and a Distress call is received:

The emergency alarm sounds for 2 minutes. Push any key to stop the alarm. Received Distress appears in the display; then Channel 16 is automatically selected. Continue monitoring Channel 16 as a coast station may re-

quire assistance. Received Distress

<111222345 DDReceiving a Distress acknowledgement While monitoring Channel 70 and a Distress acknowledge-

ment to other ship is received:

The emergency alarm sounds for 2 minutes. Push any key to stop the alarm. Received Distress ACK appears in the display;

then Channel 16 is automatically selected. Received DistressACK

<TokyoCG

>111222345 DSC OPERATION 6 DDReceiving an Individual call While monitoring Channel 70 and an Individual call is re-

ceived:

The emergency alarm or beeps sound depending on the received category. Received Individual appears in the display. Received Individual Routine

< Tom Push [[DSC/ENT DSC/ENT]] to change to the channel specified by the calling station for voice communication; push other key to ignore the Individual call. DDReceiving a Group call While monitoring Channel 70 and a Group call is received:

The emergency alarm or beeps sound depending on the received category. Received Group appears in the display. Received Group Routine

< Smiths Grp Push [[DSC/ENT DSC/ENT]] to change to the channel specified by the calling station for voice communication; push other key to ignore the Group call. 6 29 6 DSC OPERATION DDReceiving an All Ships call While monitoring Channel 70 and an All Ships call is received:

Emergency alarm sounds when the category is Distress or Urgency; 3 beeps sound for other categories. Received All ships appears in the display. Received AllShips Routine

<Osaka Bay Push [[DSC/ENT DSC/ENT]] to change to the channel specified by the calling station for voice communication; push other key to ignore the All Ships call. Monitor the channel for an announcement from the calling vessel. DDReceiving a Distress Relay call While monitoring Channel 70 and a Distress Relay call is re-

ceived:

Emergency alarm sounds for 2 minutes. Push any key to stop the alarm. Received Distress RLY appears in the display;

then, Channel 16 is automatically selected. Monitor Channel 16 until the emergency communication has been completed. DDReceiving a Distress Relay acknowledgement While monitoring Channel 70 and a Distress Relay acknowl-

edgement is received:

Emergency alarm sounds for 2 minutes. Push any key to stop the alarm. Received DTRS RLY ACK appears in the display;

then, Channel 16 is automatically selected. DDReceiving a Geographical Area call While monitoring Channel 70 and a Geographical Area call

(for the area you are in) is received:

Emergency alarm or beeps sound depending on the re-

ceived category. Received Geographic appears in the display. Push [[DSC/ENT DSC/ENT]] to change to the channel specified by the calling station for voice communication; push other key to ignore the Geographical Area call. Monitor the selected channel for an announcement from the calling station. Received Geographic Routine

<TokyoCG When no GPS receiver is connected or if there is a prob-

lem with the connected receiver, all Geographical Area calls are received, regardless of your position. 30 DSC OPERATION 6 DDReceiving a Position Request call While monitoring Channel 70 and a Position Request call is received:

Received POS Request appears in the display. DDReceiving a Position Report call While monitoring Channel 70 and a Position Report call is re-

ceived:

Received POS Report appears in the display. Received POSRequest

<Ricky Ans[DSC/ENT]

Received POSReport Ans[DSC/ENT]

Push [[ DSC/ENT DSC/ENT ]] to reply to the Position Request call;

push other key to ignore the Position Request call. Push [[DSC/ENT DSC/ENT]] to reply to the call; push other key to ig-

nore the Position Report call. DDReceiving a Position Reply call While monitoring Channel 70 and a Position Reply call is re-

ceived:

Received POS appears in the display. DDReceiving a Position Report Reply call While monitoring Channel 70 and a Position Report Reply call is received:

Received POS appears in the display. ReceivedPOS

<Tom 3434.123N 13534.123E ReceivedPOS

<Ricky 3030.123N 13030.123E 6 31 6 DSC OPERATION I Received messages The transceiver automatically stores up to 20 distress mes-

sages and 20 other messages. The messages can be used as an assistance to the logbook. q Push [[DSC/ENT w Rotate [[ CHANNEL DSC/ENT]] to select the DSC menu. CHANNEL ]] to select RCV Calls, push

[[DSC/ENT DSC/ENT]]. SelItem RCVCalls DTRSSet Setup DDDistress message q Rotate [[ CHANNEL CHANNEL ]]

[[DSC/ENT DSC/ENT]]. SelMessege Distress Other to select Distress, push w Rotate [[ CHANNEL CHANNEL ]] to scroll to the desired message, DSC/ENT]]. push [[DSC/ENT When some messages are blinking, the messages have not been read. 32 SelDTRSMSG 123123123 111222345 Chuck 3 e Rotate [[CHANNEL CHANNEL]] to scroll the message. Distress

<123123123 Explosion UTC:12:48 3243.212N 12345.221W ToClear ThisData No[DSC/ENT]

Yes[H/L]

r Push [[DSC/ENT DSC/ENT]] to exit the DSC menu or push [[HI/LOHI/LO]]

to clear the displayed message and returns to the normal operation. ToClear ThisData No[DSC/ENT]

Yes[H/L]

DSC OPERATION 6 to select Other, push e Rotate [[CHANNEL CHANNEL]] to scroll the message. The stored message has various information and depending on the type of distress calls. DDOther messages

[[ CHANNEL CHANNEL ]]

q Rotate

[[DSC/ENT DSC/ENT]]. SelMessege Distress Other w Rotate [[ CHANNEL CHANNEL ]] to scroll to the desired message, push [[DSC/ENT DSC/ENT]]. When some messages are blinking, the messages have not been read. AllShips

<Tom Routine F3ESimplex CH08 ToClear ThisData No[DSC/ENT]

Yes[H/L]

SelMessege AllShips Individual POS Request r Push [[DSC/ENT DSC/ENT]] to exit the DSC menu or push [[HI/LOHI/LO]]

to clear the displayed message and returns to the normal operation. ToClear ThisData No[DSC/ENT]

Yes[H/L]

6 33 6 DSC OPERATION I DSC Set mode DDAdd Address ID (See p.14 for detail) DDDelete Address ID (See p.15 for detail) DDOffset time This item sets the offset time from the UTC (Universal Time Coordinated) time. q Push [[DSC/ENT w Rotate [[ CHANNEL CHANNEL ]]

DSC/ENT]] to enter the DSC menu. to select Set up, push

[[DSC/ENT DSC/ENT]]. SelItem RCVCalls DTRSSet Setup r Set the offset time from the UTC (Universal Time Coordi-

nated) time. Edit the digit of offset time by using [[CHANNEL CHANNEL]].

- Push [[CH/WX SCAN]] for cursor movement.

- Push [[DSC/ENT Rotate [[CHANNEL the rst digit. CH/WX]] or [[SCAN DSC/ENT]] to set the offset time. CHANNEL]] to edit or delete -, when the cursor is on OffsetTime 400:00 OffsetTime

-12:00 t Push [[DSC/ENT No offset time (default) DSC/ENT]] to program and to exit the DSC menu. 12 hours e Rotate [[CHANNEL CHANNEL]] to select Offset time, push

[[DSC/ENT DSC/ENT]]. The local time indication is not available when a GPS re-

ceiver (sentence formatter RMC) is input, the trans-

ceivers display indicates UTC time only. Setup AddID DeleteID OffsetTime 34 DDMMSI code check The programmed 9-digit MMSI (DSC self ID) code can be checked in DSC Set mode. DSC OPERATION 6 q Push [[DSC/ENT w Rotate [[ CHANNEL CHANNEL ]]

DSC/ENT]] to enter the DSC menu. to select Set up, push

[[DSC/ENT DSC/ENT]]. SelItem RCVCalls DTRSSet Setup e Rotate [[ CHANNEL CHANNEL ]] to select MMSI Check, push

[[DSC/ENT DSC/ENT]]. Setup DeleteID OffsetTime MMSICheck r Check the 9-digit MMSI (DSC self ID) code. MMSI Check 123456789 t Push [[DSC/ENT DSC/ENT]] to exit the DSC menu. 6 35 7 OTHER FUNCTIONS I Intercom operation The optional Intercom function allows you to talk to the deck from the cabin. The optional HM-127 REMOTE-CONTROL MI-

CROPHONE is required for Intercom operation. Connect an optional HM-127 as described on pgs. 43, 65. Transmitting is impossible during Intercom operation. The received signal is muted during Intercom operation. q Push [[LO/DX LO/DX]] ((

SCR) for 1 sec. to enter Intercom mode. SCR) The HM-127 power is automatically turned ON, even if the power is OFF. IC INT Intercom INT IC-M502A w Push and hold [[LO/DX LO/DX]] ((

IC HM-127 SCR) again to call up. SCR) The transceiver and microphone emit call beeps. e Push and hold the PTT switch and speak at a normal voice level into the microphone. TALK or LSTN appears on the caller or listener function dis-

play, respectively. To adjust the IC-M502As speaker output level, rotate [[VOLVOL]]. To adjust the HM-127s speaker output level, push after [[VOLVOL]]

pushing [[ YYYY]]/[[ ZZZZ]]. 36 INT Intercom TALK INT IC-M502A (caller) HM-127 (listener) r After releasing the PTT switch you can hear the response through the speaker. t To return to the normal operation, push [[LO/DX LO/DX]] ((

IC SCR) SCR) momentarily. Other keys also turn the function OFF, however, the correspond-

ing function is then activated (e.g. pushing [[

99]] selects Chan-

nel 16). 1616 While in the Intercom mode, the transceiver functions

(transmit and receive) are interrupted. If the transceiver is in transmit condition, the Intercom function is not avail-

able. When a DSC call is received, DSC received ap-

pears and the last received DSC message is displayed after the Intercom use is nished. When a WX alert is received, WX ALT blinks and a beep sounds. The WX alert sounds after the Intercom use is nished. OTHER FUNCTIONS 7 I Microphone lock function The Microphone lock function electrically locks the [[ YYYY]]/[[ ZZZZ]]

and [[16/916/9]] keys on the supplied microphone. This prevents accidental channel changes and accidental function access. While pushing [[16/916/9]] on supplied microphone, turn power ON to toggle the Lock function ON or OFF. I Display backlighting The function display and keys can be backlit for better visibil-

ity under low light conditions. While pushing [[HI/LOHI/LO]], rotate [[CHANNEL CHANNEL]] to adjust the brightness of the LCD and key backlight. The backlight level is adjustable in 7 levels. No backlight level indication is available.

[Y]/[Z]

[16/9]

7 37 8 SET MODE I Set mode programming Set mode is used to change the conditions of the trans-

ceivers functions: scan mode (Normal or Priority), scan re-

sume timer, weather alert, Dualwatch/Tri-watch selection, DSC watch, transceivers beep tone (transceiver or HM-127), internal speaker, LCD contrast (transceiver or HM-127), RF attenuation level, scrambler code, scrambler type and auto-

matic acknowledgement. Available functions may differ depending on dealer set-

ting. The optional HM-127 has its own settings for the beep tone and LCD contrast. SET MODE CONSTRUCTION 99]], turn power ON to enter Set mode. 1616 q Turn power OFF. w While pushing [[

e After the display appears, release [[

r Push [[

1616 99]] to select the desired item. 1616 1616 Or push [[

using an optional HM-127. 99]].

]]((99)) on the HM-127 to select the item when t Rotate [[CHANNEL CHANNEL]] to select the desired condition of the item. Use [[ YYYY]]/[[ ZZZZ]] when using an optional HM-127. y Turn power OFF, then turn ON again to exit Set mode. Scan mode Scan Mode Scan resume timer Scan Timer Weather alert WX Alert Dual/tri watch DUAL/TRI DSC watch DSCWatch Push 916 Push when using HM-127 Automatic acknowledgement AUTO ACK

* The scrambler set items are only available when a scrambler unit is installed. DSC Watch, Internal Speaker and AUTO ACK items are not selectable when using HM-127. Beep tone Beep Scrambler type*

Scrambler Type Scrambler code*

Scrambler Code Attenuation level Attenuation Level LCD contrast LCD Contrast Internal speaker Internal Speaker 38 I Set mode items DDScan mode The transceiver has 2 scan modes: Normal scan and Priority scan. Normal scan searches all tag channels in the selected channel group. Priority scan searches all tag channels in se-

quence while monitoring Channel 16. SetMode ScanMode Normal scan (default) Priority scan DDScan resume timer The scan resume timer can be selected as a pause (OFF) or timer scan (ON). When OFF is selected, the scan pauses until the signal disappears. When ON is selected, the scan pauses 5 sec. and resumes even if a signal has been re-

ceived on any other channel than Channel 16. SetMode ScanTimer Scan timer OFF (default) Scan timer ON SET MODE 8 DDWeather alert A NOAA broadcast station transmits a Weather alert tone be-

fore important weather information. When the Weather alert function is turned ON, the transceiver detects the alert tone, then blinks the WX ALT indicator and sounds beep tones until the transceiver is operated. The previously selected

(used) weather channel is checked any time during standby or while scanning. WX ALT appears instead of WEATHER indication when the function is set ON. SetMode WXAlert Weather alert OFF (default) Weather alert ON DDDual/Tri-watch This item sets the [[CH/WX watch or Tri-watch. CH/WX]] ((

SetMode DUAL/TRI DW U/I/C) key function as Dual-

U/I/C) Dualwatch (default) Tri-watch 8 39 8 SET MODE DDDSC watch DSC watch monitors Channel 70 while you are receiving an-

other channel. If a distress signal is received on Channel 70, the transceiver monitors Channel 16 and 70 alternately until the distress sig-

nal disappears. If a signal is received on another channel, DSC watch pauses until the signal disappears. SetMode DSCwatch DSC watch OFF (default) DSC watch ON This function may not be available for some channel groups depending on dealer setting. DDBeep tone You can select silent operation by turning beep tones OFF, or you can have conrmation beeps sound at the push of a key by turning beep tones ON. SetMode Beep Beep tone ON (default) Beep tone OFF The optional HM-127 has its own setting for the beep tone. 40 DDInternal speaker When an external speaker is connected and the transceivers internal speaker is not required, the speaker on the trans-

ceiver and microphone can be deactivated. SP OFF appears on the function display when the internal speaker is turned OFF. The order of indication precedence is SP OFF, LOCAL and CALL. SetMode Internal Speaker Internal speaker ON (default) Internal speaker OFF DDLCD contrast This item adjusts the contrast of the LCD in 8 steps. SetMode LCD Contrast LCD contrast 4 (default) The optional HM-127 has its own setting for the LCD con-

trast. DDAttenuation level This item sets the receive attenuation level for the Attenuator function from 3 levels. SetMode Attenuation Level Attenuation level 1 (default) DDScrambler code

(Appears when a scrambler unit is installed) When an optional scrambler unit is installed, the scrambler code can be set depending on dealer setting. When the UT-98 or UT-112 is installed, 128 or 32 codes (0 to 127 or 1 to 32) can be selected. SetMode Scrambler Code Scrambler code 1 (UT-112 default) Scrambler code 32 SET MODE 8 DDScrambler type

(Appears when a scrambler unit is installed) When an optional scrambler unit is installed, the scrambler type can be selected in Set mode depending on dealer set-

ting. SetMode Scrambler Type UT-112 scrambler unit UT-98 scrambler unit 8 DDAutomatic acknowledgement This item sets the Automatic acknowledgement function ON or OFF. When Position Request or Position Report call is received, transceiver automatically transmits Position Reply or Position Report Reply, respectively. SetMode AUTOACK Auto ACK OFF (default) Auto ACK ON 41 9 CONNECTIONS AND MAINTENANCE I Supplied accessories The following accessories are supplied:

Qty. q Mounting bracket ............................................................ 1 w Microphone hanger ......................................................... 1 e Mic hanger screws (3 16) ............................................ 2 r Mounting screws (5 20) ............................................... 4 t Flat washers (M5) ........................................................... 4 y Spring washers (M5) ...................................................... 4 u Knob bolts for mounting bracket...................................... 2 i DC power cable (OPC-891) ........................................... 1 o Warning sticker ............................................................... 1

!0 RCA connector cable Red (OPC-1278) .......................... 1

!1 RCA connector cable White (OPC-1279) ....................... 1 I Antenna A key element in the performance of any communication sys-

tem is an antenna. Ask your dealer about antennas and the best place to mount them. I Fuse replacement One fuse is installed in the supplied DC power cable. If a fuse blows or the transceiver stops functioning, track down the source of the problem, if possible, and replace the damaged fuse with a new, rated one. q w

!0 o WARNING e r t y Fuse rating: 10 A I Cleaning If the transceiver becomes dusty or dirty, wipe it clean with a soft, dry cloth.

!1 i u AVOID the use of solvents such as benzene or al-

cohol, as they may damage transceiver surfaces. 42 I Connections q w t r e q DC POWER CONNECTOR Connects the supplied DC power cable from this connector to an external 13.8 V DC power source. w EXTERNAL MICROPHONE JACKS Connects to optional HM-127 REMOTE-CONTROL MICRO-

PHONE. CAUTION: NEVER connect other microphones, such as the HM-134, as this may cause damage to the transceiver. e ANTENNA CONNECTOR Connects a marine VHF antenna with a PL-259 connector. CAUTION: Transmitting without an antenna may dam-

age the transceiver. CONNECTIONS AND MAINTENANCE 9 r NMEA IN (Red)/NMEA OUT (White) JACKS Connects to a GPS receiver for position and time indica-

tions. An NMEA0183 ver. 2.0 or 3.01 (sentence formatters RMC, GGA, GNS, GLL) compatible GPS receiver is required. Ask your dealer about suitable GPS receivers. RCA NMEA IN (+) NMEA IN () Connects to a PC or navigation equipment (NMEA0183 ver. 3.01 sentence formatters DSC, DSE compatible) for plotting received other ships position data. RCA NMEA OUT (+) NMEA OUT () t EXTERNAL SPEAKER JACK Connects to an external speaker. CAUTION: After connecting the DC power cable, NMEA IN/OUT jacks and external speaker jack cover the connec-

tor and jacks with a rubber vulcanising tape as shown below, to prevent water seeping into the transceiver. Rubber vulcanizing tape 9 43 9 CONNECTIONS AND MAINTENANCE I Mounting the transceiver DDUsing the supplied mounting bracket The universal mounting bracket supplied with your transceiver allows overhead or onboard mounting. Mount the transceiver securely with the 4 supplied screws

(M5 20) to a surface which is more than 10 mm thick and can support more than 5 kg. Mount the transceiver so that the face of the transceiver is at 90 to your line of sight when operating it. CAUTION: KEEP the transceiver and microphone at least 1 meter away from your vessels magnetic navigation compass. OVERHEAD MOUNTING These screws are shown as mounting example only. Not supplied with accessories. NOTE: Check the installation angle; the function display may not be easy-to-read at some angles. MOUNTING ON THE BOARD 44 CONNECTIONS AND MAINTENANCE 9 r Attach the clamps on either side of the IC-M502A. Make sure that the clamps align parallel to the IC-M502As body. t Tighten the end bolts on the clamps (rotate clockwise) so that the clamps press firmly against the inside of the in-

strument control panel. y Tighten the locking nuts (rotate counterclockwise) so that the IC-M502A is securely mounted in position as below. u Connect the antenna and power cable, then return the in-

strument control panel to its original place. DDUsing the optional MB-75 An optional MB-75 FLUSH MOUNT is available for mounting the transceiver to a at surface such as an instrument panel. CAUTION: KEEP the transceiver and microphone at least 1 meter away from your vessels magnetic navigation compass. q Using the template on the last page, carefully cut a hole into the instrument panel (or wherever you plan to mount the transceiver). w Slide the transceiver through the hole as shown below. e Attach the 2 supplied bolts (M5 8 mm) on either side of the IC-M502A. 9 45 9 CONNECTIONS AND MAINTENANCE I Optional unit installation CAUTION: DISCONNECT the DC power cable from the transceiver before performing any work on the transceiver. Otherwise, there is danger of electric shock and/or equip-

ment damage. Follow the case opening procedure shown here when you want to install an optional unit. q Remove the 6 screws as shown below and open the trans-

ceiver. w Remove the 4 screws from the shielding plate, then lift up the shielding plate. 46 e Plug an optional unit (UT-98 or UT-112) to J3 on the MAIN unit as shown below. Optional unit r Return the shielding plate and assemble the units to their original positions. CAUTION:

When re-assembling the case and tightening the screws, you must keep the specied torque (0.70.1 N.m). Oth-

erwise the transceiver may be damaged (torque too high) or lose waterproof efciency (torque too low). When uninstalling the optional unit, remove it vertically. Wiggling the unit from side to side may damage the op-

tional unit's connector. CONNECTIONS AND MAINTENANCE 9 I Dimensions 145.0 (5 2332)

) 6 1 5 4

4

. 9 0 1

) 2 3 1 1 4

0 0 1 1

. 165.0 (6 12) 31.4

(1 14) 53.0

(2 332) Unit: mm (inch) 9 47 10 TROUBLESHOOTING PROBLEM POSSIBLE CAUSE SOLUTION No power comes ON. Bad connection to the power supply. Check the connection to the transceiver. No sound comes from the speaker. Squelch level is too high. Volume level is too low. Speaker has been exposed to water. Internal speaker is turned OFF. Set squelch to the threshold point. Set [VOL] to a suitable level. Drain water from the speaker. Turn the internal speaker ON in Set mode. Sensitivity is low. The attenuator is activated. Push [LO/DX] to turn the function OFF. Transmitting is impossi-

ble, or high power can

not be selected. Some channels are for low power or re-

ceive only. The output power is set to low. er can Scan does not start. TAG channel is not prog rammed. No beep sounds. Beep tone is turned OFF. The squelch is open. Change channels. Push [HI/LO] to select high power. Set the desired channels as TAG chan-

nels. Turn the beep tone ON in Set mode. Set squelch to the threshold point. Receive signal cannot be understood. Optional voice scrambler is turned OFF. Scramble code is not set correctly. Turn the optional voice scrambler ON. Reset the scramble code. Distress call cannot be transmitted. MMSI (DSC self ID) code is not pro-

grammed. Program the MMSI (DSC self ID) code. REF. p. 43 p. 8 p. 8 p. 40 p. 8 pgs. 6, 49 p. 8 p. 13 p. 40 p. 8 p. 10 p. 41 p. 14 48 CHANNEL LIST 11 Channel number USA INT 01 02 03 Frequency (MHz) CAN Transmit Receive 156.050 160.650 01 156.050 156.050 156.100 160.700 156.150 160.750 156.150 156.150 156.200 160.800 04A 156.200 156.200 156.250 160.850 05A 156.250 156.250 156.300 156.300 06 156.350 160.950 07A 156.350 156.350 156.400 156.400 08 156.450 156.450 09 156.500 156.500 10 11 156.550 156.550 12 156.600 156.600 13 156.650 156.650 14 156.700 156.700 15 156.750 156.750 16 156.800 156.800 17 156.850 156.850 156.900 161.500 18A 156.900 156.900 156.950 161.550 01A 03A 05A 06 07A 08 09 10 11 12 13 14 15 16 17 18A 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 22 21 20 23 INT 21A 22A 24 25 23A 24 25 Channel number Frequency (MHz) CAN Transmit Receive USA 19A 156.950 156.950 19A 20 20 157.000 161.600 157.000 157.000 20A 157.050 161.650 21 21A 157.050 157.050 21b Rx only 161.650 157.100 161.700 22A 157.100 157.100 157.150 161.750 23 157.150 157.150 157.200 161.800 24 25 157.250 161.850 25b Rx only 161.850 157.300 161.900 26 27 157.350 161.950 28 157.400 162.000 28b Rx only 162.000 60 156.025 160.625 156.075 160.675 61A 156.075 156.075 156.125 160.725 62A 156.125 156.125 156.175 160.775 156.175 156.175 156.225 160.825 26 27 28 26 27 28 60 61 61A 63A 64 62 63 64 Channel number USA 64A INT Channel number USA 83A INT Frequency (MHz) CAN Transmit Receive 64A 156.225 156.225 156.275 160.875 65A 156.275 156.275 156.325 160.925 156.325 156.325 66A 156.375 156.375 67 156.425 156.425 68 69 156.475 156.475 70 156.525 156.525 156.575 156.575 71 72 156.625 156.625 156.675 156.675 73 74 156.725 156.725 77 156.875 156.875 156.925 161.525 78A 156.925 156.925 156.975 161.575 79A 156.975 156.975 157.025 161.625 80A 157.025 157.025 157.075 161.675 81A 157.075 157.075 157.125 161.725 82A 157.125 157.125 83 157.175 161.775 65A 66A 67 68 69 70 71 72 73 74 77 78A 79A 80A 81A 82A 65 65A 66 66A 67 68 69 70 71 72 73 74 77 78 79 80 81 82 83 85 Frequency (MHz) CAN Transmit Receive 83A 157.175 157.175 83b Rx only 161.775 157.225 161.825 84 157.225 157.225 157.275 161.875 157.275 157.275 157.325 161.925 157.325 157.325 157.375 161.975 157.375 157.375 157.425 162.025 157.425 157.425 87 88 86 84 85 86 87 88 84 84A 85 85A 86 86A 87 87A 88 88A WX channel 1 2 3 4 5 6 7 8 9 10 Frequency (MHz) Transmit Receive RX only 162.550 162.400 RX only 162.475 RX only 162.425 RX only 162.450 RX only 162.500 RX only 162.525 RX only 161.650 RX only 161.775 RX only RX only 163.275 Low power only. DSC operation only. NOTE: Simplex channels, 3, 21, 23, 61, 64, 81, 82 and 83 CANNOT be lawfully used by the general public in U.S.A. waters. 10 11 49 12 SPECIFICATIONS AND OPTIONS I Specications DDGeneral Frequency coverage

Transmit Receive Mode Channel spacing Current drain (at 13.8 V) 156.025157.425 MHz 156.050163.275 MHz

: FM (16K0G3E) DSC (16K0G2B)

: 25 kHz

: TX high Max. audio 5.5 A max. 1.5 A max. Power supply requirement: 13.8 V DC 15%

Frequency stability Dimensions

(Projection not included) Weight (approx.)

: 10 ppm

(20C to +60C; 4F to +140F)

: 165(W) 110(H) 109.4(D) mm 6 12(W) 4 1132(H) 4 516(D) in

: 1130 g; 2 lb 8 oz DDTransmitter Output power Modulation system

: 25 W / 1 W

: Variable reactance phase modulation Max. frequency deviation : 5.0 kHz Spurious emissions

: 70 dBc DDReceiver Receive system

: Double conversion superheterodyne Sensitivity (12 dB SINAD) : 0.22 V (typical) Squelch sensitivity

: 0.22 V (typical) Intermodulation rejection ratio: More than 75 dB Spurious response

: More than 75 dB rejection ratio Adjacent channel selectivity: More than 75 dB Audio output power

: 4.5 W (typical) at 10% distortion with a 4 load All stated specifications are subject to change without notice or obligation. 50 I Options MB-75 FLUSH MOUNT For mounting the transceiver to a panel. SP-5 EXTERNAL SPEAKER A large, external speaker for superior audio output. SP-10 EXTERNAL SPEAKER A compact, external speaker. Features easy installation. UT-98/ UT-112 VOICE SCRAMBLER UNIT (pgs. 10, 41) Ensures private communications. 128 (for UT-98) or 32 (for UT-112) codes are available. Not available in some countries. HM-127 REMOTE-CONTROL MICROPHONE (p. 52) External microphone-type controller. Provides optional Inter-

com operation. 6 m (20 feet) microphone cable and mount-

ing base included. Black and white colors are available. OPC-999 MICROPHONE EXTENSION CABLE 6 m (20 feet) microphone extension cable for optional HM-127. Up to 2 OPC-999 can be connected. (18 m; 60 feet maximum) SPECIFICATIONS AND OPTIONS 12 12 51 13 HM-127 REMOTE-CONTROL MICROPHONE OPTION I Panel description The optional HM-127 remotely controls the IC-M502A and provides an optional Intercom function. DDFront and side keys Top keys q w e u y t r q PTT SWITCH [[PTTPTT]] (pgs. 8, 57) Push and hold to transmit; release to receive. w CHANNEL UP/DOWN KEYS [[ YYYY]]/[[ ZZZZ]]

Push either key to change the operating channel, Set mode settings, etc. (pgs. 8, 57) Push either key to adjust audio level or noise squelch level after [[ VOLVOL ]] or [[ SQLSQL ]] is pushed, respectively.

(pgs. 8, 57) Push either key to adjust the brightness of the LCD and key backlight after [[VOLVOL]] is pushed for 1 sec. (p. 58) In Set mode, changes setting of the selected item. (pgs. 38, 62) Checks tag channels or changes scanning direction dur-

ing scan. (pgs. 13, 61) e CHANNEL 16/CALL CHANNEL KEY [[

1616

]]((99)) Selects Channel 16 when pushed. (pgs. 6, 56) Selects call channel when pushed for 1 sec. (pgs. 6, 56) CALL appears when call channel is selected. Push for 3 sec. to enter call channel programming con-

dition when call channel is selected. (pgs. 9, 59) While pushing [[ H/LH/L ]], enters channel comments pro-

gramming condition. (pgs. 9, 63) Enters Set mode when pushed while turning power ON.

(pgs. 38, 62) 52 r CHANNEL/DUALWATCH/TRI-WATCH KEY

[[CH/WX CH/WX]] ((

Selects and toggles the regular channels and weather U/I/C) U/I/C) DW channel when pushed momentarily. (pgs. 6, 7, 56) While pushing [[H/LH/L]], selects one of 3 regular channels in sequence when pushed. (pgs. 7, 56) International, U.S.A. and Canadian channels are available for regular channels. Starts Dualwatch or Tri-watch when pushed for 1 sec.

(pgs. 11, 60) Stops Dualwatch or Tri-watch when either is activated. t ATTENUATOR/INTERCOM/SCRAMBLER KEY

[[LO/DX LO/DX]] ((

Toggles the Attenuator function ON or OFF when SCR) SCR) IC pushed momentarily. (pgs. 8, 57) LOCAL appears when the Attenuator is in use. HM-127 REMOTE-CONTROL MICROPHONE 13 y SQUELCH/MONITOR/LOCK KEY [[SQLSQL]] ((

MONI L)L)

[[ YYYY]]/[[ ZZZZ]] sets the squelch threshold level after pushing

[[SQLSQL]]. (p. 57) Push [[SQLSQL]] ((

MONI tion ON. (p. 59) L)L) for 1 sec. to turn the monitor func-

While pushing [[H/LH/L]], push [[SQLSQL]] ((

MONI L)L) to toggle the

(microphone) Key lock function ON or OFF. (p. 58) T appears while Key lock function is in use.

[[PWRPWR]], [[PTTPTT]], [[VOLVOL]], [[SQLSQL]] and [[H/LH/L]] still function when the (microphone) Key lock function is turned ON. Advance the cursor while in channel comment program-

ming condition. (pgs. 9, 63) u VOLUME/DIMMER KEY [[VOLVOL]] ((

DIM

[[ YYYY]]/[[ ZZZZ]] adjusts the audio level after pushing [[VOLVOL]]

(p. 57) Push [[VOLVOL]] ((

DIM

)) for 1 sec. to adjust the brightness of Activates the Intercom function when pushed for 1 sec. the LCD and key backlight. (p. 58)

(pgs. 36, 63) Move the cursor backward while in channel comment Calls the IC-M502A when pushed and held while in In-

programming condition. (pgs. 9, 63) tercom mode. (pgs. 36, 63) While pushing [[H/LH/L]], activates an optional Voice scram-

bler function. (pgs. 10, 60) The optional Voice scrambler function cannot be used on Channel 16 and 70. 13 53 13 HM-127 REMOTE-CONTROL MICROPHONE DDTop keys q w PWR TAG SCAN H/L e q POWER KEY [PWR] (pgs. 8, 57) Push for 2 sec. to turn the HM-127 power ON or OFF when the IC-M502A power is turned ON.

)) (pgs. 13, 61) w SCAN KEY [[SCAN SCAN]] ((

TAG Starts and stops Normal or Priority scan when tag chan-

nels are programmed. Push [[SCAN SCAN]] ((

TAG

)) for 1 sec. to set the displayed chan-

nel as a tag (scanned) channel. While pushing [[H/LH/L]], push for 3 sec. to clear or set all tag channels. e TRANSMIT POWER KEY [[H/LH/L]]

Toggles high or low power when pushed. (pgs. 8, 57) Some Channels are set to low power only. While pushing this key, other keys perform secondary functions. Toggles the All key lock function ON or OFF when pushed while turning power ON. (p. 58) T blinks while the All key lock function is in use. Only [[PWRPWR]] and [[PTTPTT]] function when the All key lock func-

tion is in use. 54 I Function display

!8 !7

!6

!4!5 !3 TX BUSY TAG CALL LOW WX ALT DUAL DUP TRI P SCAN CAN USA INT L VOL SQL SCRM LOCAL

!2

!1

!0 o i q w e r t y u q CHANNEL GROUP INDICATOR (pgs. 7, 56) Indicates whether an International (INT), U.S.A. (USA) or Canadian (CAN) channel is selected. w KEY LOCK INDICATOR (p. 58) Appears while the Key lock function is in use. Blinks while the All key lock function is in use. HM-127 REMOTE-CONTROL MICROPHONE 13 e CHANNEL NUMBER READOUT

!0 PRIORITY CHANNEL INDICATOR Indicates the selected operating channel number. A appears when a simplex channel is selected. b ap-

pears when a receive only channel for a Canadian chan-

nel group is selected. (pgs. 6, 56) In Set mode, indicates the selected condition. (pgs. 38, 62) r VOLUME INDICATOR (p. 57) Appears while audio output level is adjusted. t SQUELCH INDICATOR (p. 57) Appears while noise squelch level is adjusted. y CHANNEL COMMENT INDICATOR Channel comment appears (and scrolls) if programmed.

(pgs. 9, 63) In Set mode, indicates or scrolls the selected Set mode item. (pgs. 38, 62) u ATTENUATOR INDICATOR (pgs. 8, 57) Appears when the RF Attenuator is in use. i SCRAMBLER INDICATOR (pgs. 10, 60) Indicates a priority channel during Priority scan or Dual/Tri-watch. (pgs. 11, 13, 60, 61) IC appears during Intercom mode. (pgs. 36, 63)

!1 DUAL/TRI WATCH INDICATOR (pgs. 11, 60) DUAL appears during Dualwatch; TRI during Tri-watch.

!2 WEATHER CHANNEL INDICATOR (pgs. 7, 56) WX appears when a weather channel is selected. WX ALT appears when the Weather alert function is in use; blinks when an alert tone is received.

!3 LOW POWER INDICATOR (pgs. 8, 57) Appears when low power is selected.

!4 CALL CHANNEL INDICATOR (pgs. 6, 56) Appears when call channel is selected.

!5 DUPLEX INDICATOR (pgs. 7, 56) Appears when a duplex channel is selected.

!6 TAG CHANNEL INDICATOR (pgs. 13, 61) Appears when a tag channel is selected. Appears when an optional Voice scrambler is activated.

!7 BUSY INDICATOR (pgs. 8, 57, 59) o SCAN INDICATOR (pgs. 13, 61) SCAN appears during Normal scan. P SCAN appears during Priority scan. Appears when receiving a signal or when the squelch opens.

!8 TRANSMIT INDICATOR (pgs. 8, 57) Appears while transmitting. 13 55 13 HM-127 REMOTE-CONTROL MICROPHONE I Channel selection DDChannel 16 q Push [[

w Push [[ CH/WX

]] to select Channel 16. 1616 CH/WX ]] to return to the condition before selecting Chan-

nel 16, or push [[ YYYY]] or [[ ZZZZ]] to se-

lect an operating channel. Push DDCall channel q Push [[

1616

]]((99)) for 1 sec. to select DDU.S.A., International and Canadian channels CH/WX]] ((

q Push [[CH/WX Push [[CH/WX CH/WX]] ((

U/I/C) to select a regular channel. U/I/C) U/I/C) again, if a weather channel appears. U/I/C) U/I/C) to select a U/I/C) w While pushing [[H/LH/L]], push [[CH/WX CH/WX]] ((

DW DW DW channel group. U.S.A., International and Canadian channels can be selected in sequence. call channel. w Push [[ CH/WX CH/WX ]] to return to the condition before selecting call channel, or push [[ YYYY]] or [[ ZZZZ]] to select an operating channel. Push for 1 sec. Push while pushing U.S.A. channels

DDWeather channels q Push [[CH/WX CH/WX]] once or twice to select the weather channel group. to select a w Push [[ YYYY]] or [[ ZZZZ]]

weather channel. e Push [[ CH/WX CH/WX ]] to return to the condition before selecting the weather channel group. Push 56

International channels Canadian channels HM-127 REMOTE-CONTROL MICROPHONE 13 q Turn power ON r Set output power t Push to transmit y Release to receive e Set channel w Set volume w Set squelch, if required t Speak into microphone IMPORTANT: To maximize the readability of your trans-

mitted signal (voice), pause a few sec. after pushing

[[ PTTPTT ]], hold the microphone 2 to 4 inches (5 to 10 cm) from your mouth and speak at a normal voice level. I Receiving and transmitting q Push [[PWRPWR]] to turn power ON. w Push [[VOLVOL]], then [[ YYYY]]/[[ ZZZZ]] to adjust audio output level. Push [[SQLSQL]], then push [[ YYYY]]/[[ ZZZZ]] to mute any audio noise, if nec-

essary. e Push [[ YYYY]]/[[ ZZZZ]] to select the desired channel. appears and audio is emitted When receiving a signal, from the speaker. Further adjustment of the audio level may be necessary at this point. Use the optional Voice scrambler function for privacy. (pgs. 10, 60) r Push [[H/LH/L]] to select the output power, if necessary. LOW appears when low power is selected. Choose low power for short range communications, choose high power for longer distance communications. Some channels are for selecting low power only. t Push and hold [[PTTPTT]] to transmit, then speak into the mi-

crophone. Channel 70 cannot be used for transmission other than DSC. appears. Simplex channels, 3, 21, 23, 61, 64, 81, 82 and 83 CANNOT be lawfully used by the general public in U.S.A. waters. y Release [[PTTPTT]] to receive. 13 57 13 HM-127 REMOTE-CONTROL MICROPHONE I Lock functions The Lock function electronically locks keys and switches to prevent accidental changes and function access from the mi-

crophone. All keys, switches and controllers on the transceiver are functional. I Display backlighting The function display and keys can be backlit for better visibil-

ity under low light conditions. The backlighting condition can also be adjusted independently from the transceiver. DDActivating the Lock function While pushing [[ H/LH/L ]], push L)L) to turn the Lock MONI appears.

[[SQLSQL]] ((

function ON or OFF.

[[ H/LH/L ]], Only L)L), [[ VOLVOL ]]+[[ YYYY]]/[[ ZZZZ]]

[[ SQLSQL ]] ((

and [[ SQLSQL ]]+[[ YYYY]]/[[ ZZZZ]] are func-

tional.

[[ PWRPWR ]], MONI

[[ PTTPTT ]], Appears when the lock function is in use. DDActivating the All key lock function While pushing [[H/LH/L]], turn the power ON by pushing [[PWRPWR]]

to turn the All key lock function ON or OFF. blinks. Only [[ PWRPWR ]] and [[ PTTPTT ]] are functional. Blinks when the all lock function is in use. 58 q Push [[VOLVOL]] ((

DIM

)) for 1 sec. to enter Backlight adjusting mode. with the number of the backlight level appears in the channel comment indicator. w Push [[ YYYY]]/[[ ZZZZ]] to adjust the backlight level. The backlight level is adjustable between 0 (light OFF) and 7

(brightest). Appears while in the Backlight adjustment mode. For your reference:

Pushing [[ YYYY]]/[[ ZZZZ]], while [H/L]

light level. No backlight level indication is available.

[H/L] is pushed, also adjusts back-

I Monitor function The monitor function releases the noise squelch mute of the microphone only. (An independent noise squelch system is employed.) Push [[SQLSQL]] ((

MONI Blinks when the Monitor function is in use. L)L) for 1 sec. to activate the Monitor func-

tion. ted. Any key cancels the Monitor function. blinks and audio is emit-

HM-127 REMOTE-CONTROL MICROPHONE 13 I Call channel programming q Push [[CH/WX CH/WX]] ((

DW U/I/C) several U/I/C) times while pushing [[H/LH/L]] to select the desired channel group (USA, INT, CAN) to be programmed. w Push [[

1616

]] (( 99 )) for 1 sec. to select call channel of the selected chan-

nel group. CALL and call channel number ap-

pear. I RF attenuator function Push [[LO/DX LO/DX]] to turn the RF attenuator function ON and OFF. Appears when the RF attenuator function is in use. e Push [[

1616

]]((99)) again for 3 sec. (until a long beep changes to 2 short beeps) to enter call channel pro-

gramming condition. The channel number and channel group to be programmed blinks. r Push [[ YYYY]]/[[ ZZZZ]] to select the desired channel. t Push [[

1616

]] ((99)) to program the dis-

played channel as call channel. The channel number and channel group stop ashing. 13 59 13 HM-127 REMOTE-CONTROL MICROPHONE I Optional Voice scrambler operation DDActivating the Scrambler q Select an operating channel, except for Channel 16, Chan-

nel 70 or weather channels. w While pushing [[ H/LH/L ]], push

[[LO/DX LO/DX]] ((

SCR) to turn the SCR) Voice scrambler function ON. SCRM appears. IC e To turn the Scrambler func-

tion OFF, repeat step w. SCRM disappears. Appears when the Voice scrambler function is in use DDProgramming scramble codes There are 128 codes available with UT-98 or 32 codes (01 to 32) available with the UT-112 for programming. In order to understand one another, all transceivers in your group must have the same scrambler code as well as the same scram-

bler unit. The scrambler code is programmed in Set mode. See pgs. 10, 41 for details. 60 I Dualwatch/Tri-watch operation q Push [[ YYYY]]/[[ ZZZZ]] to select the desired channel. CH/WX]] ((

Push [[CH/WX select the channel group (USA, INT, CAN), if desired. U/I/C) several times while pushing [[H/LH/L]] to U/I/C) DW w Push [[CH/WX CH/WX]] ((

DW U/I/C) for 1 sec. to start Dualwatch or U/I/C) Tri-watch. DUAL appears during Dual-

watch; TRI appears during Tri-

watch. A beep tone sounds when a sig-

nal is received on Channel 16. Tri-watch becomes Dualwatch when receiving a signal on call channel. Dualwatch or Tri-watch can be selected in the transceivers Set mode. Appears when the Dual or Tri-watch function is in use. e To cancel Dualwatch/Tri-watch, push [[CH/WX CH/WX]] ((

DW U/I/C) U/I/C) again. I Starting a scan q While pushing [[ H/LH/L ]], push [[ CH/WX CH/WX ]] ((

U/I/C) several U/I/C) times to select the channel group (USA, INT, CAN), if de-

sired. When the Weather alert function is in use, select the desired weather channel with [[CH/WX CH/WX]] and [[ YYYY]]/[[ ZZZZ]]. DW w Push [[SCAN SCAN]] to start Priority or Normal scan. SCAN appears during Normal scan. The priority channel readout indicates 16, and P and SCAN indicators appear during Priority scan. When a signal is received, scan pauses until the signal disap-

pears or resumes after pausing 5 sec. according to the Set mode setting (Channel 16 is still monitored during Priority scan). Push [[ YYYY]]/[[ ZZZZ]] to check the scanning tag channels, to change the scanning direction or resume the scan manually. e To stop the scan, push [[SCAN SCAN]] ((

TAG

)). SCAN disappears. Pushing [[PTTPTT]], [[

1616

]]((99)) or [[CH/WX CH/WX]] also stops the scan. HM-127 REMOTE-CONTROL MICROPHONE 13 I Setting tag channels q While pushing [[ H/LH/L ]], push [[ CH/WX CH/WX ]] ((

U/I/C) several U/I/C) times to select the channel group (USA, INT, CAN), if de-

sired. DW w Push [[ YYYY]]/[[ ZZZZ]] to select the desired channel to set as a tag channel. e Push [[SCAN SCAN]] ((

TAG

)) for 1 sec. to set the displayed channel as a tag channel. appears. r To cancel the tag channel setting, push [[SCAN SCAN]] ((

TAG

)) for 1 sec. disappears. Convenient: Clearing (setting) all tagged channels While pushing [[H/LH/L]], push [[SCAN

)) for 3 sec. (until a long beep changes to 2 short beeps) to clear all tag channels setting in the channel group. Repeat above procedure to set all tag channels. SCAN]] ((

TAG 13 61 13 HM-127 REMOTE-CONTROL MICROPHONE I Set mode programming Set mode is used to change the condition of the transceivers functions and the microphones own functions:

Transceivers functions scan mode (Normal or Priority), scan resume timer, weather alert, Dualwatch/Tri-watch, DSC watch, transceivers beep tone, internal speaker (transceiver), LCD contrast (trans-

ceiver), RF attenuation level, scrambler code, scrambler type and automatic acknowledgement. Microphones own functions beep tone function (microphone) and LCD contrast (micro-

phone). In this section, instructions are for the microphones own func-

tions only. Refer to pgs. 3841 for the setting of the other functions. (Some functions cannot be selected from the HM-

127.) 62 DDEntering Set mode q Turn power OFF. w While pushing [[

1616

]]((99)), turn power ON. After a beep emission, a Set mode item (in the channel comment in-

dicator and the condition in the channel number readout) is displayed. 1616

]]((99)) to select the desired item, if necessary. e Push [[

r Push [[ YYYY]]/[[ ZZZZ]] to select the desired condition of the item. t Turn power OFF, then ON to exit Set mode. Beep tone BEEP Push [[ YYYY]] to turn ON, [[ ZZZZ]] to turn OFF the beep output. Push LCD contrast LCD CONTRAST Push [[ YYYY]]/[[ ZZZZ]] to adjust to a suitable LCD contrast. Push I Intercom operation q Push [[LO/DX LO/DX]] ((

SCR) for 1 sec. SCR) to activate the Intercom function. IC appears in the priority channel readout. The channel comment disappears. IC w Push [[PTTPTT]] to talk. appears in the channel com-

ment indicator. e Release [[PTTPTT]] to listen. Appears when the inter-

com function is in use. appears in the channel comment indicator when the transceiver is in talking mode. r Push [[LO/DX LO/DX]] ((

IC SCR) to cancel the Intercom function. SCR) Pushing [[

1616

]] also cancels the Intercom function. For your reference:

In case the Intercom mode is selected with the transceiver while the microphone power is OFF, the microphone power is automatically turned ON and the Intercom mode is selected. DDIntercom beep function Push [[LO/DX LO/DX]] ((

IC SCR) for more than 1 sec. SCR) Emits the Intercom beep while holding. HM-127 REMOTE-CONTROL MICROPHONE 13 I Channel comments q Push [[ YYYY]]/[[ ZZZZ]] to select a channel to program a channel comment. Push [[CH/WX select the channel group (USA, INT, CAN), if desired. U/I/C) several times while pushing [[H/LH/L]] to U/I/C) CH/WX]] ((

DW w While pushing [[H/LH/L]], push [[

1616

]]((99)). The 1st character of the currently programmed comment blinks. e Push [[ YYYY]]/[[ ZZZZ]] to select a character. r Push [[SQLSQL]] to move to forward; then push [[ YYYY]]/[[ ZZZZ]] to se-

lect a character. Push [[VOLVOL]] to move to backward. t Continue until the desired characters have been selected, then push [[

1616

]]((99)) to return to normal operation. Available characters

(space)

(4)

(E)

(O)

(Y)

(i)

(s)

(5)

(F)

(P)

(Z)

(j)

(t)

(6)

(G)

(Q)

(a)

(k)

(u)

(7)

(H)

(R)

(b)

(8)

(I)

(S)

(c)

(l)

(m)

(v)

(w)

(9)

(J)

(T)

(d)

(n)

(x)

(0)

(A)

(K)

(U)

(e)

(o)

(y)

(1)

(B)

(L)

(V)

(f)

(p)

(z)

(2)

(C)

(M)

(W)

(g)

(q)

(3)

(D)

(N)

(X)

(h)

(r) 13 63 13 HM-127 REMOTE-CONTROL MICROPHONE I HM-127 supplied accessories Accessories included with the HM-127:

Qty. q Connection cable (OPC-1000: 6 m; 20 ft) ...................... 1 w Mounting base ................................................................ 1 e Microphone hanger ........................................................ 1 r Screws (M3 16; tapping) ............................................. 5 w e r q 64 HM-127 REMOTE-CONTROL MICROPHONE 13 I Installation The optional HM-127 can be connected to the transceiver di-

rectly, as well as via the supplied connection cable for longer distance remote operation. The connector of the connection cable can be installed into a cabinet, wall, etc., as a built-in plug. w To use the supplied cable as a wall socket, follow the below steps. e Using the mounting base, carefully mark off the 2 spots where the cable and screws will be fastened. r Drill holes at these marks. t Install the mounting base using the supplied screws as shown below. For longer distance remote operation, the optional extension cable, OPC-999 (6 m; 20 ft/connecting between transceiver and the connection cable), is available, and up to 2 OPC-999 can be added. q Insert the supplied cable into the external microphone jack and tighten the cable nut as shown below. Mounting base Nut Gasket Screw holes

(approx. 2 (d) mm; 332) Cap y The completed installation should look like this. 13 65 13 HM-127 REMOTE-CONTROL MICROPHONE 2 mm; 332 m m

) d

7 2 o t 4 2

) 6 1 1 1 o t 6 1 5 1

2 3 9 2

m m

) d

3 2 Mounting base 5 mm; 316 2 3 1 3 1

m m

) d

0 5 Gasket Nut Cap 66 TEMPLATE 165 mm (612 in) 149 mm (578 in) 2 mm; 332 in 4R11

) n i 2 3 1 1 4

m m 0 1 1

) n i 8 5 3

m m 2 9 MB-75 HM-127 24 to 27 (d) mm

(1516 to 1116 in) e r e h t u C A-6301H-1EX Printed in Japan 2003 Icom Inc. 1-1-32 Kamiminami, Hirano-ku, Osaka 547-0003, Japan