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INSTRUCTION MANUAL
VHF MARINE TRANSCEIVER
iGM651
Ver. 1.003

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Summary of Contents for Icom IC-GM651

  • Page 1 INSTRUCTION MANUAL VHF MARINE TRANSCEIVER iGM651 Ver. 1.003...
  • Page 2: Important

    mportant operatng nstructons for the IC-GM651. We want to take a couple of moments of your tme to thank you for makng the IC-GM651 your rado of choce, and hope you agree wth Icom’s phlosophy of “technology first.” Many EXPLICIT DEFINITIONS hours of research and development went nto the desgn of your IC-GM651.
  • Page 3: Precautions

    t could cause bodly njury. Icom optonal equpment s desgned for optmal perfor- mance when used wth ths transcever. We are not respon- KEEP the transcever at least 1 m away from the shp’s sble for the transcever beng damaged or any accdent navgaton compass.
  • Page 4: In Case Of Emergency

    IN CASE OF EMERGENCY INSTALLATION NOTE If your vessel requres assstance, contact other vessels and The nstallaton of ths equpment should be made n such a the Coast Guard by sendng a Dstress call on Channel 16. manner as to respect the EC recommended electromagnetc field exposure lmts (1999/519/EC).
  • Page 5: Firmware Version Number

    The firmware verson number s dsplayed n the openng screen as below. The verson number s also dsplayed when MMSI code check screen s selected. (see p. 18) Firmware version number indication (This illustration describes ‘Version 1.000’.) IC-GM651 <MMSI> 123456789 Ver1.000...
  • Page 6: Table Of Contents

    TABLE OF CONTENTS 4 DUALWATCH/TRI-WATCH ............14 FOREWORD .................. IMPORTANT .................. n Descrpton ................14 EXPLICIT DEFINITIONS .............. n Operaton ................14 PRECAUTIONS ................ 5 SCAN OPERATION ............15–17 IN CASE OF EMERGENCY ............ n Scan types ................15 INSTALLATION NOTE .............. n Settng TAG channels ............16 FIRMWARE VERSION NUMBER ............
  • Page 7 n Transmttng DSC calls ............50 n Receved messages ..............92 D Transmttng an All Shps call ..........50 D Dstress message ..............92 D Transmttng an Indvdual call ..........52 D Other messages ..............95 D Transmttng an Indvdual Acknowledgement call ....54 n DSC Set mode ...............99 D Transmttng a Group call ...........60 D Prntng out the DSC memory contents ......99 D Transmttng a Poston Request call ........62...
  • Page 8: Table Of Contents

    TABLE OF CONTENTS (Contnued) 8 CONNECTIONS AND MAINTENANCE......109–117 n Connectons .................109 n Antenna ................110 n Fuse replacement ..............110 n Suppled accessores ............111 D Accessory connectors set up ...........111 n Power supply connectons ...........112 D Connectng to the DC power supply through the PS-250 ...112 D Connectng to the AC outlet through the PS-250 and optonal PS-240 ............113 n Mountng the transcever .............114...
  • Page 9: Operating Rules

    OPERATING RULES D PRIORITIES (2) OPERATOR’S LICENSE A Restrcted Radotelephone Operator Permt s the lcense • Read all rules and regulatons pertanng to prortes and most often held by small vessel rado operators when a rado keep an up-to-date copy handy. Safety and Dstress calls s not requred for safety purposes.
  • Page 10: Panel Description

    PANEL DESCRIPTION n Panel description Function display (p. 5) !1 SELECTOR !2 CHANNEL 16/ DIAL CALL CHANNEL KEY VHF MARINE iGM651 Speaker !3 KEYPAD !0 TRANSMIT POWER KEY o VOLUME CONTROL q CLEAR KEY MMSI w FUNCTION KEY DIAL i MIC CONNECTOR e DISTRESS KEY r DSC MENU KEY u SQUELCH CONTROL...
  • Page 11 PANEL DESCRIPTION t POWER KEY [POWER] (p. 8) o VOLUME CONTROL [VOL] (p. 8) ➥ Push to turn power ON and OFF. Rotate to adjust the audo level. • The transcever does not turn power ON when the connected !0 TRANSMIT POWER KEY [H/L] PC-250 s turned OFF.
  • Page 12 PANEL DESCRIPTION ➥ Number nput: ‘1’ ➥ Number nput: ‘7’ ➥ Comment nput: ‘Q,’ ‘Z,’ ‘q,’ ‘z’ or space ➥ Comment nput: ‘P,’ ‘R,’ ‘S,’ ‘p,’ ‘r’ or ‘s’ ➥ After pushng [F], push to turn the Dualwatch functon ON or OFF. (p. 14) ➥...
  • Page 13: FunctOn DSplay

    PANEL DESCRIPTION n Function display !0 POWER !1 DUPLEX INDICATOR INDICATOR !2 CHANNEL GROUP INDICATOR o BUSY/TRANSMIT q CALL CHANNEL INDICATOR INDICATOR BUSY 25W CALL i TAG CHANNEL INDICATOR w MESSAGE INDICATOR u SCAN INDICATOR NORMAL SCAN e CHANNEL NUMBER 34°34.506N y POSITION READOUT...
  • Page 14 PANEL DESCRIPTION t TIME ZONE INDICATOR i TAG CHANNEL INDICATOR (p. 16) ➥ Shows the current tme data when a GPS recever s Appears when a TAG channel s selected. connected. o BUSY/TRANSMIT INDICATOR • “??” and the last receved tme data may blnk alternately ➥...
  • Page 15: Basic Operation

    BASIC OPERATION n Channel selection D Call channel D Channel 16 Each regular channel group has a separate lesure-use call Channel 16 s the dstress and safety channel. It s used for channel. The call channel s montored durng Tr-watch. The establshng ntal contact wth a staton and for emergency call channels can be programmed (p.
  • Page 16: D InternatOnal Channels (Depends On VersOn)

    BASIC OPERATION n Receiving and transmitting D International channels (Depends on verson) There are pre-programmed 57 nternatonal channels for the IC-GM651. CAUTION: Transmttng wthout an antenna wll dam- age the transcever. q Push [DIAL] to select a regular channel. w Whle pushng and holdng [H/L], push [DIAL] to change q Push [POWER] to turn power ON.
  • Page 17 BASIC OPERATION y Push and hold [PTT] to transmt, then speak nto the m- t Select the e Change the r Select a crophone. output power channel group channel • “TX” appears. • Channel 70 cannot be used for transmsson other than DSC. u Release [PTT] to receve.
  • Page 18: Call Channel ProgrammNg

    BASIC OPERATION n Call channel programming e Push and hold [⁄6 • C] agan for 3 sec. (untl a long beep You can program the call channel wth your most often-used channels n each channel group for quck recall. changes to 2 short beeps) to enter call channel program- mng condton.
  • Page 19: Channel Comments

    BASIC OPERATION n Channel comments Memory channels can be labeled wth a unque alphanu- Push merc ID of up to 10 characters each. Captal letters, small letters, 0 to 9, some symbols (- . /) and space can be used. Input the channel 34°34.506N 123°23.236W...
  • Page 20: MCrophone Lock FunctOn

    BASIC OPERATION n Microphone lock function r Push [ENT] to nput and set the comment. • The cursor and the character stop blnkng. The mcrophone lock functon elec- trcally locks [Y]/[Z] and [HI/LO] keys on the optonal mcrophone. 34°34.506N Ths prevents accdental channel 123°23.236W changes and functon access.
  • Page 21: BacklGht FunctOn

    Wthout ths functon, water may muf- ness can be adjusted as follows. fle the sound comng from the speaker. The IC-GM651 emts a low beep tone when ths functon s ➥ After pushng [F], push [3• ] then rotate [SELECTOR] actvated.
  • Page 22: Dualwatch/Tri-Watch

    DUALWATCH/TRI-WATCH n Description n Operation Dualwatch montors Channel 16 whle you are recevng q Select the desred channel. on another channel; Tr-watch montors Channel 16 and the w Push [F], then push [1• ] to start Dualwatch or DUAL call channel whle recevng another channel. Dualwatch/Tr- [2•...
  • Page 23: Scan Operation

    SCAN OPERATION n Scan types Set the TAG channels (scanned channel) before scannng. Scannng s an efficent way to locate sgnals quckly over a wde frequency range. The transcever has Prorty scan and Clear the TAG for unwanted channels whch nconvenently stop scannng, such as those for dgtal communcaton use.
  • Page 24: SettNg Tag Channels

    SCAN OPERATION n Setting TAG channels n Starting a scan For more effcent scannng, add the desred channels as Set scan type (Prorty or Normal scan) and scan resume TAG channels or clear the TAG for unwanted channels. tmer n advance usng Set mode. (p. 107) Channels that are not tagged wll be skpped durng scan- q Whle pushng and holdng [H/L], push [DIAL] several nng.
  • Page 25 SCAN OPERATION [Example]: Startng a normal scan. 34°34.506N 123°23.236W UTC 12:00 INTL Push then push Scan starts. NORMAL SCAN 34°34.506N 123°23.236W UTC 12:00 Appears When a signal is received BUSY 25W NORMAL SCAN 34°34.506N 123°23.236W UTC 12:00 SAFETY...
  • Page 26: Dsc Operation

    DSC menu screen appears after pushng [MENU•MMSI]. MMSI Input Rotate Firmware version number indication 123______ Cursor moves (This illustration describes ‘Version 1.000’.) SELECTOR MMSI Push IC-GM651 MMSI Input <MMSI> 123456789 No MMSI Ver1.000 After 2 sec. MMSI Input _________ 1st digit blinks...
  • Page 27: Dsc Address Id

    DSC OPERATION n DSC address ID e After nputtng the MMSI code, push [ENT]. A total of 100 DSC address IDs can be programmed and • ‘Confirmation’ lne appears. named wth up to 10 characters. NOTE: The transcever automatcally returns to the nor- MMSI Input mal operaton condton when no operaton s performed 123456789...
  • Page 28 DSC OPERATION r Input the 9-dgt ndvdual ID drectly wth the keypad. t Input the 10-character of the ndvdual ID name drectly • Rotate [SELECTOR] to move the cursor backward or forward. wth the keypad. • Push [CE] to clear the ID and name. •...
  • Page 29 DSC OPERATION y Push [ENT] to program and return to the DSC set up menu. i Rotate [SELECTOR] to select “Exit,” push [ENT] to re- turn to the normal operaton condton. --DSC Menu-- • Pushng [CLR] also returns to the normal operaton condton. Add:Individual ID Input 9 Digits --DSC Menu--...
  • Page 30: D Deleting Individual Id

    DSC OPERATION D Deleting Individual ID r Rotate [SELECTOR] to select the desred ID name for q Push [MENU] to enter the DSC menu. deletng, push [ENT]. w Rotate [SELECTOR] to select “Set up,” push [ENT]. • Push [CLR] to cancel and back to the prevous screen. --DSC Menu-- Select Item --DSC Menu--...
  • Page 31: D Programming Group Id

    DSC OPERATION D Programming Group ID y Push [CLR] to return to the DSC Set up menu. q Push [MENU] to enter the DSC menu. • Push [ENT] to delete the selected ndvdual ID. (see step t) w Rotate [SELECTOR] to select “Set up,” push [ENT]. •...
  • Page 32 DSC OPERATION r Input the 8-dgt group ID drectly wth the keypad. t Input the 10-character of the group ID name drectly wth • Rotate [SELECTOR] to move the cursor backward or forward. the keypad. • Push [CE] to clear the ID and name. •...
  • Page 33 DSC OPERATION y Push [ENT] to program and return to the DSC Set up i Rotate [SELECTOR] to select “Exit,” push [ENT] to re- menu. turn to the normal operaton condton. • Pushng [CLR] also returns to the normal operaton condton. --DSC Menu-- Add:Group ID --DSC Menu--...
  • Page 34: D Deleting Group Id

    • Push [CLR] to cancel and back to the prevous screen. --DSC Menu-- --DSC Menu-- Select Item Rotate Select ID Distress Call ≤ Rotate Icom Received Call Log Group A Position Request SELECTOR ˘Group B Test Call SELECTOR Group C ˘Set up...
  • Page 35: PosTOn And TMe ProgrammNg

    DSC OPERATION n Position and Time programming y Push [CLR] to return to the DSC Set up menu. • Push [ENT] to delete the selected group ID. (see step t) A Dstress call should nclude the shp’s poston and tme •...
  • Page 36 DSC OPERATION e Input your lattude data drectly wth the keypad. After n- r Input your longtude data drectly wth the keypad. After puttng, push [ENT] to set. nputtng, push [ENT] to set. • Push [6• ] to nput N; North lattude or [7• ] to nput •...
  • Page 37 DSC OPERATION NOTE: When no poston and tme data are nput, the fol- t Input the current UTC tme wth the keypad. After nput- lowng screen appears. Push [ENT] to set. tng, push [ENT] to set. • Rotate [SELECTOR] to move the cursor backward or forward. •...
  • Page 38: PosTOn And TMe NdCatOn

    : 12:00 MNL 12:00 CALLING A GPS recever approprate for the IC-GM651 s not suppled from Icom. A GPS recever wth IEC61162-1: 2000 format When no position and time data are set. s requred for poston and tme ndcaton. Ask your dealer about sutable GPS recevers.
  • Page 39: Gps NformatOn NdCatOn

    DSC OPERATION n GPS information indication ➥ When the connectng GPS recever s compatble wth When a GPS recever (IEC61162-1: 2000 format) s con- several sentence formatters, the order of nput prece- nected, the transcever dsplays the GPS nformaton after pushng and holdng [ENT] for 1 sec.
  • Page 40: DStress Call

    DSC OPERATION n Distress call D Simple call A Dstress call should be transmtted, f n the opnon of the Master, the shp or a person s n dstress and requres m- q Confirm no Dstress call s beng receved. medate assstance.
  • Page 41 DSC OPERATION e After transmttng the call, the transcever wats for an ac- ➥ A dstress alert contans (default); knowledgment call. • Nature of dstress : Undesgnated dstress • Poston data : GPS or manual nput poston data held • The Dstress call s automatcally transmtted every 3.5 to 4.5 for 23.5 hrs.
  • Page 42: D Regular Call

    DSC OPERATION D Regular call When the transcever receves the GPS data from the The nature of the dstress should be ncluded n the Dstress call. connected GPS recever, the followng screens (steps e q Push [MENU] to enter the DSC menu, then rotate [SE- to t) do not appear.
  • Page 43 DSC OPERATION r Input your longtude data drectly wth the keypad (f you want to t Input the current UTC tme data drectly wth the keypad change the dsplayed data). After nputtng, push [ENT] to set. (f you want to change the dsplayed data). After nputtng, •...
  • Page 44 DSC OPERATION NOTE: When no poston and tme data are nput, the fol- y Push and hold [DISTRESS] for 3 sec. to transmt the Ds- lowng screen appears. Push [ENT] to set. tress call. • Emergency channel (Channel 70) s automatcally selected and •...
  • Page 45 DSC OPERATION ➥ The Dstress call s repeated every 3.5–4.5 mn., untl re- u After transmttng the Dstress call, the transcever wats for an acknowledgment call. cevng an ‘acknowledgement.’ (‘Dstress Call Repeat’ • The Dstress call s automatcally transmtted every 3.5 to 4.5 mode;...
  • Page 46: D Transmitting A Distress Cancel

    DSC OPERATION • About the ‘Distress Call Repeat’ mode D Transmitting a Distress Cancel The Dstress call s automatcally repeated every 3.5–4.5 Dstress Cancel call operaton s avalable only when the mn., untl recevng an ‘acknowledgement.’ transcever s watng for an ‘acknowledgement’ call after To cancel the ‘Dstress Call Repeat’...
  • Page 47: D Transmitting A Distress Acknowledgement Call

    DSC OPERATION D Transmitting a Distress Acknowledgement call Dstress call recepton should stop after one sequence snce the coast staton should send back an ‘acknowledgement’ to Distress Cancel the shp. If the dstress call contnues even the coast staton Are You Sure? send back an ‘acknowledgement,’...
  • Page 48 DSC OPERATION e The dstress nformaton appears. Push [ENT]. t After transmttng the Dstress Acknowledgement call, the transcever selects the Channel 16 automatcally. --DSC Menu-- Distress Information Rotate Distress ID 121111113 Undesignated SELECTOR LAT: 12°23.111N LON:123°23.123E 34°34.506N UTC:10:25 ≥ 123°23.236W UTC 12:00 CALLING Telephony...
  • Page 49: D Transmitting A Distress Relay Call

    DSC OPERATION D Transmitting a Distress Relay call q Push [MENU] to enter the DSC menu, then rotate There are two ways to transmt the dstress relay call— “DROBOSE ( )” and [SELECTOR] to select “Distress Relay,” push Dstress Relay On Behalf Of Someone Else [ENT].
  • Page 50 DSC OPERATION e Rotate [SELECTOR] to select the desred pre-pro- r Dstress ID of the shp n dstress selecton screen grammed coast staton address or “Manual Input” appears. Rotate [SELECTOR] to select “Manual for transmttng a dstress relay call, push [ENT]. Input,”...
  • Page 51 DSC OPERATION y Rotate [SELECTOR] to select the nature of the dstress, t Input the 9-dgt Dstress ID (MMSI ID) code of the shp n dstress that you wsh to help wth the keypad. push [ENT]. • Rotate [SELECTOR] to move the cursor backward or forward. •...
  • Page 52 DSC OPERATION u Your poston data s dsplayed. Input the shp n dstress i Input the shp n dstress longtude data drectly wth the lattude data drectly wth the keypad. After nputtng, push keypad. After nputtng, push [ENT] to set. [ENT] to set.
  • Page 53 DSC OPERATION NOTE: When no poston and tme data are nput, the fol- o Input the current UTC tme wth the keypad. After nput- tng, push [ENT] to set. lowng screen appears. Push [ENT] to set. • If the data s not necessary to change, push [ENT] to skp the •...
  • Page 54 DSC OPERATION !0 Push [ENT] to transmt the dstress relay call. To transmit the distress relay call with “Distress Call Log”: • Emergency channel (Channel 70) s automatcally selected. You can relay a dstress call after recevng the dstress call. Distress Relay --DSC Menu-- Transmission...
  • Page 55 DSC OPERATION r Dstress ID of the shp n dstress selecton screen ap- When “All Ships” s selected, step e does not ap- pears. Rotate [SELECTOR] to select the desred dstress pear. Go to step r. ID from the dstress call log, push [ENT]. e Rotate [SELECTOR] to select the desred pre-pro- --DSC Menu-- grammed coast staton address or “Manual Input”...
  • Page 56: D TransmTtNg A DStress Relay Acknowledgement Call

    DSC OPERATION y Push [ENT] to transmt the dstress relay call. D Transmitting a Distress Relay Acknowledgement call • Emergency channel (Channel 70) s automatcally selected. Dstress relay acknowledgement call operaton s avalable only when the dstress relay call s receved. --DSC Menu-- Distress Relay q Push [MENU] to enter the DSC menu, then rotate...
  • Page 57 DSC OPERATION e The dstress nformaton appears. Push [ENT]. t After transmttng the Dstress Relay Acknowledgement call, the transcever selects the Channel 16 automatcally. --DSC Menu-- Rotate Distress Relay Info From Station 1 Distress ID SELECTOR 121212121 Undesignated LAT: 12°23.111N 34°34.506N LON:123°23.123E ≥...
  • Page 58: TransmTtNg Dsc Calls

    DSC OPERATION n Transmitting DSC calls To ensure correct operaton of the DSC functon, please w Rotate [SELECTOR] to select the desred category, push make sure you set the squelch correctly. (p. 102) [ENT]. Rotate --DSC Menu-- D Transmitting an All Ships call Select Category Large shps use Channel 70 as ther ‘lstenng channel.’...
  • Page 59 DSC OPERATION r Push [ENT] to transmt the All shps call. t After the All shps call has been transmtted, the trans- • Emergency channel (Channel 70) s automatcally selected. cever selects the traffc channel (specfed n step e) • If Channel 70 s busy, the transcever stands by untl the chan- automatcally.
  • Page 60: D Transmitting An Individual Call

    DSC OPERATION D Transmitting an Individual call q Push [MENU] to enter the DSC menu, then rotate The Indvdual call functon allows you to transmt a DSC sg- [SELECTOR] to select “Individual Call,” push nal to a specfic coast staton or shp only. After transmsson, [ENT].
  • Page 61 DSC OPERATION When “Manual Input” s selected, set the 9-dgt nd- r Rotate [SELECTOR] to select the desred ntershp chan- vdual ID you wsh to call wth the keypad, push [ENT]. nel or “Manual Input,” push [ENT]. • Intershp channels are already preset nto the transcever n Push --DSC Menu-- recommended order.
  • Page 62: D TransmTtNg An IndVDual Acknowledgement Call

    DSC OPERATION t Push [ENT] to transmt the Indvdual call. D Transmitting an Individual Acknowledgement call • Emergency channel (Channel 70) s automatcally selected. When recevng an Indvdual call, you can transmt an ac- • If Channel 70 s busy, the transcever stands by untl the chan- knowledgement call (‘Able to comply’, ‘Propose New Chan- nel becomes clear.
  • Page 63 DSC OPERATION To transmit “Able to Comply”— Manual ACK: q Push [MENU] to enter the DSC menu, then rotate e The call nformaton appears, push [ENT]. [SELECTOR] to select “Individual ACK,” push [ENT]. --DSC Menu-- • “Individual ACK” s added to the DSC menu after recev- Individual Call Info ng an Indvdual call.
  • Page 64 DSC OPERATION t Push [ENT] to transmt the Indvdual acknowledgement To transmit “Propose New Channel”— Quick ACK: call to the callng staton. ➥ After an Indvdual call s receved, push [CLR] to stop the alarm, then rotate [SELECTOR] to ndcate the receved •...
  • Page 65 DSC OPERATION w Rotate [SELECTOR] to select the desred ndvdual ad- t Rotate [SELECTOR] to select a desred ntershp channel dress or ID code, push [ENT]. or “Manual Input,” push [ENT]. • Intershp channels are already preset nto the transcever n --DSC Menu-- recommended order.
  • Page 66 DSC OPERATION y Push [ENT] to transmt the Indvdual acknowledgement To transmit “Unable to Comply”— Quick ACK: call to the callng staton. ➥ After an Indvdual call s receved, push [CLR] to stop the alarm, then rotate [SELECTOR] to ndcate the receved •...
  • Page 67 DSC OPERATION w Rotate [SELECTOR] to select the desred ndvdual ad- r Rotate [SELECTOR] to select “Unable to Comply,” dress or ID code, push [ENT]. push [ENT]. --DSC Menu-- --DSC Menu-- Rotate Select Address Select Action Rotate ˘Station 1 Able to Comply Station 2 Propose New Channel SELECTOR...
  • Page 68: D Transmitting A Group Call

    DSC OPERATION y Push [ENT] to transmt the Indvdual acknowledgement D Transmitting a Group call call to the callng staton. The Group call functon allows you to transmt a DSC sgnal • Emergency channel (Channel 70) s automatcally selected. to a specfic group only. •...
  • Page 69 DSC OPERATION w Rotate [SELECTOR] to select the desred pre-pro- e Rotate [SELECTOR] to select a desred ntershp channel grammed group address or “Manual Input,” push or “Manual Input,” push [ENT]. [ENT]. • Intershp channels are already preset nto the transcever n recommendng order.
  • Page 70: D Transmitting A Position Request Call

    DSC OPERATION D Transmitting a Position Request call r Push [ENT] to transmt the Group call. Transmt a Poston Request call when you want to know a • Emergency channel (Channel 70) s automatcally selected. specfic shp’s current poston, etc. •...
  • Page 71 DSC OPERATION w Rotate [SELECTOR] to select the desred pre-programmed e Push [ENT] to transmt the Poston Request call. ndvdual address or “Manual Input,” push [ENT]. • Emergency channel (Channel 70) s automatcally selected. • If Channel 70 s busy, the transcever stands by untl the chan- •...
  • Page 72: D Transmitting A Position Reply Call

    DSC OPERATION D Transmitting a Position Reply call w Rotate [SELECTOR] to select the desred ndvdual ad- Transmt a Poston Reply call when a Poston Request s dress or ID code, push [ENT]. receved. (p. 87) --DSC Menu-- To transmit a “Position Reply”— Quick ACK: Rotate Select Address ➥...
  • Page 73 DSC OPERATION r Input your lattude data drectly wth the keypad. After n- t Input your longtude data drectly wth the keypad. After puttng, push [ENT] to set. nputtng, push [ENT] to set. • If the data s not necessary to change, push [ENT] to skp the •...
  • Page 74 DSC OPERATION NOTE: When no poston and tme data are nput, the fol- y Input the current UTC tme wth the keypad. After nput- tng, push [ENT] to set. lowng screen appears. Push [ENT] to set. • If the data s not necessary to change, push [ENT] to skp the •...
  • Page 75: D Transmitting A Polling Reply Call

    DSC OPERATION u Push [ENT] to transmt the Poston Reply call to the call- D Transmitting a Polling Reply call ng staton. Transmt a Pollng Reply call when a Pollng Request s re- • Your poston data s transmtted, when [ENT] s pushed. ceved (p.
  • Page 76 DSC OPERATION To transmit “Polling Reply”— Manual ACK: q Push [MENU] to enter the DSC menu, then rotate r Push [ENT] to transmt the Pollng Reply call to the callng [SELECTOR] to select “Polling Reply,” push [ENT]. staton. • “Polling Reply” s added to the DSC menu after recevng •...
  • Page 77: D Transmitting A Medical Transports Call

    DSC OPERATION D Transmitting a Medical Transports call q Push [MENU] to enter the DSC menu, then rotate The medcal transports call nforms all shps, by urgency pr- [SELECTOR] to select “Medical Transports,” orty, that your shp s carryng a patent n need of a medcal push [ENT].
  • Page 78: D Transmitting A Neutral Ship Call

    DSC OPERATION e Push [ENT] to transmt the Medcal Transport call. D Transmitting a Neutral Ship call • Emergency channel (Channel 70) s automatcally selected. The Neutral Shp call nforms all shps that your shp s a • If Channel 70 s busy, the transcever stands by untl the chan- neutral (not a partcpant) n armed conflct.
  • Page 79 DSC OPERATION e Push [ENT] to transmt the Neutral Shp call. q Push [MENU] to enter the DSC menu, then rotate [SE- • Emergency channel (Channel 70) s automatcally selected. LECTOR] to select “Neutral Ship,” push [ENT]. • If Channel 70 s busy, the transcever stands by untl the chan- •...
  • Page 80: D Transmitting A Test Call

    DSC OPERATION D Transmitting a Test call w Rotate [SELECTOR] to select the desred pre-programmed Testng on the exclusve DSC dstress and safety callng ndvdual address or “Manual Input,” push [ENT]. channels should be avoded as much as possble by usng •...
  • Page 81 DSC OPERATION e Push [ENT] to transmt the Test call. t When recevng the acknowledgement call, “Received • Emergency channel (Channel 70) s automatcally selected. Test ACK” appears n the dsplay. See p. 91 for detals. • If Channel 70 s busy, the transcever stands by untl the chan- nel becomes clear.
  • Page 82: D Transmitting A Test Acknowledgement Call

    DSC OPERATION D Transmitting a Test Acknowledgement call w Rotate [SELECTOR] to select the desred ndvdual ad- Transmt a Test Acknowledgement call when a Test call s dress or ID code, push [ENT]. receved (p. 90). Rotate --DSC Menu-- To transmit a “Test Acknowledgement”— Quick ACK: Select Address ➥...
  • Page 83: ReceVNg Dsc Calls

    DSC OPERATION n Receiving DSC calls r Push [ENT] to transmt the Test Acknowledgement call to the callng staton. D Receiving a Distress call • Emergency channel (Channel 70) s automatcally selected. q W hle montorng Channel 70 and a dstress call s receved: •...
  • Page 84 DSC OPERATION IMPORTANT! Distress call reception should stop after w Rotate [SELECTOR] to ndcate the receved message one sequence since the coast station should send back log nformaton. an ‘acknowledgement’ to the ship. • Push [CLR] to gnore the call and ext the condton. e Rotate [SELECTOR] to scroll.
  • Page 85: D Receiving A Distress Acknowledgement Call

    DSC OPERATION D Receiving a Distress Acknowledgement call e Rotate [SELECTOR] to scroll. q Whle montorng Channel 70 and a Dstress acknowl- • Push [CLR] to cancel and back to the prevous screen. edgement call to other shp s receved: •...
  • Page 86: D Receiving A Distress Cancel

    DSC OPERATION D Receiving a Distress Cancel e Rotate [SELECTOR] to scroll. q Whle montorng Channel 70 and a Dstress Cancel s receved: • Push [CLR] to cancel and back to the prevous screen. • Push [F], then push [8• ] to prnt out the receved mes- •...
  • Page 87: D Receiving A Distress Relay Call

    DSC OPERATION D Receiving a Distress Relay call e Rotate [SELECTOR] to ndcate the receved message q Whle montorng Channel 70 and a Dstress Relay call s log nformaton. receved: • Push [CLR] to cancel and back to the prevous screen. •...
  • Page 88: D Receiving A Distress Relay Acknowledgement Call

    DSC OPERATION D Receiving a Distress Relay Acknowledgement call e Rotate [SELECTOR] to ndcate the receved message q Whle montorng Channel 70 and a Dstress Relay ac- log nformaton. knowledgement call s receved: • Push [CLR] to cancel and back to the prevous screen. •...
  • Page 89: D Receiving An All Ships Call

    DSC OPERATION D Receiving an All Ships call e The receved message log s dsplayed. q Whle montorng Channel 70 and an All Shps call s re- • Push [CLR] to cancel and back to the prevous screen. ceved: • Push [F], then push [8• ] to prnt out the receved mes- •...
  • Page 90: D Receiving An Individual Call

    DSC OPERATION D Receiving an Individual call e The receved message log s dsplayed. q Whle montorng Channel 70 and an Indvdual call s re- • Push [CLR] to cancel and back to the prevous screen. ceved: • Push [F], then push [8• ] to prnt out the receved mes- •...
  • Page 91: D Receiving An Individual Acknowledgement Call

    DSC OPERATION D Receiving an Individual Acknowledgement call When receiving “Able to Comply”: e The receved message log s dsplayed. q Whle montorng Channel 70 and an Indvdual acknowl- • Push [CLR] to cancel and back to the prevous screen. edgement call “Able to comply”...
  • Page 92 DSC OPERATION When receiving “Propose New Channel”: q Whle montorng Channel 70 and an Indvdual acknowl- e The receved message log s dsplayed. • Push [CLR] to cancel and back to the prevous screen. edgement call “Able to comply” s receved: •...
  • Page 93 DSC OPERATION When receiving “Unable to Comply”: q Whle montorng Channel 70 and an Indvdual acknowl- e The receved message log s dsplayed. • Push [CLR] to cancel and back to the prevous screen. edgement call “Unable to comply” s receved: •...
  • Page 94: D Receiving A Group Call

    DSC OPERATION D Receiving a Group call e The receved message log s dsplayed. q Whle montorng Channel 70 and a Group call s re- • Push [CLR] to cancel and back to the prevous screen. ceved: • Push [F], then push [8• ] to prnt out the receved mes- •...
  • Page 95: D Receiving A Position Request Call

    DSC OPERATION D Receiving a Position Request call e The receved message log s dsplayed. q Whle montorng Channel 70 and a Poston Request call • Push [CLR] to cancel and back to the prevous screen. s receved: • Push [F], then push [8• ] to prnt out the receved mes- •...
  • Page 96: D Receiving A Position Reply Call

    DSC OPERATION D Receiving a Position Reply call e Rotate [SELECTOR] to scroll the ndcated nformaton. q Whle montorng Channel 70 and a Poston Reply call s • Push [CLR] to cancel and back to the prevous screen. receved: • Push [F], then push [8• ] to prnt out the receved mes- •...
  • Page 97: D Receiving A Polling Request Call

    DSC OPERATION D Receiving a Polling Request call e The receved message log s dsplayed. q Whle montorng Channel 70 and a Pollng Request call • Push [CLR] to cancel and back to the prevous screen. s receved: • Push [F], then push [8• ] to prnt out the receved mes- •...
  • Page 98: D Receiving A Test Call

    DSC OPERATION D Receiving a Test call e The receved message log s dsplayed. q Whle montorng Channel 70 and a Test call s receved: • Push [CLR] to cancel and back to the prevous screen. • The alarm sounds dependng on the receved category. •...
  • Page 99: D Receiving A Test Acknowledgement Call

    DSC OPERATION D Receiving a Test Acknowledgement call e The receved message log s dsplayed. q Whle montorng Channel 70 and a Test Acknowledge- • Push [CLR] to cancel and back to the prevous screen. ment call s receved: • Push [F], then push [8• ] to prnt out the receved mes- •...
  • Page 100: ReceVed Messages

    DSC OPERATION n Received messages w Rotate [SELECTOR] to select “Distress.” The transcever automatcally stores up to 20 dstress mes- sages and 20 other messages. • The receved messages are stored n “Dstress” n DSC menu f ts category or format specfier s ‘Dstress.’ The stored messages are automatcally deleted after 48 hours has passed from storng.
  • Page 101 DSC OPERATION r Rotate [SELECTOR] to scroll the selected message. In case of the Distress Acknowledgement call • The stored message has varous nformaton dependng on the --DSC MENU-- type of Dstress call. Rotate • Push [ENT] to select the channel 16. Distress ACK ≤...
  • Page 102 DSC OPERATION In case of the Distress Cancel In case of the Distress Relay Acknowledgement call --DSC MENU-- --DSC MENU-- Rotate Rotate Distress Cancel ≤ Distress Relay ACK ≤ From 121111113 To Individual SELECTOR SELECTOR Distress ID From Station 2 121111113 Distress ID Undesignated...
  • Page 103: D Other Messages

    DSC OPERATION D Other messages q Push [MENU] to enter the DSC menu, then rotate e Rotate [SELECTOR] to scroll to the desred message, [SELECTOR] to select “Received Call Log,” push push [ENT]. [ENT]. • Messages whch are blnkng have not read yet. •...
  • Page 104 DSC OPERATION In case of the Individual Acknowledgement call In case of the All Ships call ‘Able to Comply’ --DSC MENU-- Rotate --DSC MENU-- All Ships Call ≤ Rotate From Station 1 Individual ACK ≤ SELECTOR Safety From Station 1 Telephony SELECTOR Routine...
  • Page 105 DSC OPERATION In case of the Position Request call In case of the Polling Request call --DSC MENU-- --DSC MENU-- Position Request Polling Request From Station 1 From Station 1 Safety Routine • Push [ENT] to reply the call. (p. 64) •...
  • Page 106 DSC OPERATION In case of the Test Acknowledgement call --DSC MENU-- Test ACK From Station 1 Safety Push to Exit • Push [ENT] to exit the condition. When [CE] s pushed, the followng screen appears. Push [ENT] to delete the selected log data. --DSC Menu-- Log Deletion Are You Sure?
  • Page 107: Dsc Set Mode

    DSC OPERATION n DSC Set mode D Programming Individual ID/Group ID w Rotate [SELECTOR] to select “Auto Print,” push [ENT]. (See pgs. 19, 23) D Deleting Individual ID/Group ID --DSC Menu-- (See pgs. 22, 26) Set Up Add:Group ID ≤ Rotate DEL:Individual ID D Printing out the DSC memory contents...
  • Page 108: D Position Automatic Acknowledgement

    DSC OPERATION D Position Automatic Acknowledgement e Rotate [SELECTOR] to select the poston automatc ac- Ths tem sets the poston automatc acknowledgement functon to ON or OFF. knowledgement functon ON or OFF. When a poston request, pollng request or test call s re- --DSC Menu-- ceved, the transcever automatcally transmts a poston Position Auto ACK...
  • Page 109: D Dsc Data Output

    DSC OPERATION D DSC Data Output e Rotate [SELECTOR] to select the DSC Data Output func- Select a DSC Data Output functon from Lst Staton, All Sta- ton or OFF. ton from Lst Staton, All Staton or OFF. • Lst Staton : Outputs the poston data from the specfied sta- When recevng poston acknowledgment or DSC call n- tons lsted n the DSC ndvdual ID screen.
  • Page 110: D Squelch Level Setting For Channel 70 Receiver

    DSC OPERATION D Squelch Level Setting for Channel 70 Receiver e Rotate [SELECTOR] to set the desred squelch level on Set the desred squelch level ndependently for the channel 70 recever. channel 70 from Very Hgh Nose, Hgh Nose or Normal Condton.
  • Page 111: D MedCal Transports Tem Appearance N Dsc Set Up Menu

    DSC OPERATION D Medical Transports item Appearance in DSC Set up menu e Rotate [SELECTOR] to select the tem appearance n The “Medcal Transports” tem can be set to appear or dsap- pear n DSC Set up menu. DSC Set up menu. --DSC Menu-- q Push [MENU] to enter the DSC menu, then rotate Medical Transports...
  • Page 112: D Neutral ShP Call Tem Appearance N Dsc Set Up Menu

    DSC OPERATION D Neutral Ship Call item Appearance in DSC Set up menu The “Neutral Shp Call” tem can be set to appear or dsap- e Rotate [SELECTOR] to select each tem appearance n pear n DSC Set up menu. DSC Set up menu.
  • Page 113: D Self Check Testing

    D Self Check Testing e Push [ENT] to start the Self Check Testng. Accordng to regulatons, the IC-GM651 has a self testng capablty to check the nternal AFSK encoder and decoder r The result of the Self Check Testng s ndcated.
  • Page 114: Set Mode

    SET MODE n Set mode programming q Whle pushng and holdng [⁄6 • C], push [POWER] to Set mode s used to change the condtons of the trans- cever’s functons: Scan type, Scan resume tmer, Beep tone, enter Set mode. •...
  • Page 115: Set Mode Tems

    SET MODE n Set mode items D Beep tone D Scan type You can select slent operaton by turnng beep tones OFF, The transcever has 2 scan types: normal scan and prorty or you can have confirmaton beeps sound at the push of a scan.
  • Page 116: D Display Contrast

    SET MODE D Display contrast D Cursor movement (Downward) You can select the drecton of [SELECTOR] rotaton from Ths tem adjusts the contrast of the LCD n 8 steps. CW (clockwse) or CCW (counter-clockwse) to move the --Set Mode-- Rotate cursor downward.
  • Page 117: Connections And Maintenance

    CONNECTIONS AND MAINTENANCE n Connections t VDR/CLONE CONNECTORS Connects a voce recorder. VDR (–) VDR (+) Transceiver’s rear panel view y GPS RECEIVER/EXTERNAL SPEAKER CONNECTOR ➥ Connects a GPS recever to DSC Data IN (−)/(+) for q ANTENNA CONNECTOR poston and tme ndcatons. Connects a marne VHF antenna wth a PL-259 connec- •...
  • Page 118: Antenna

    A key element n the performance of any communcaton CAUTION: system s an antenna. Ask your dealer about antennas and • IC-GM651 should be connected to the DC power the best place to mount them. supply through the PS-250, sold by the set wth the IC-GM651, when t s operated.
  • Page 119: SupplEd AccessorEs

    CONNECTIONS AND MAINTENANCE n Supplied accessories D Accessory connectors set up The followng accessores are suppled. The accessory connectors are used for the accessory cable Mounting bracket For mounting bracket connecton to the connectors t and y as at left. Knob bolts Flat washers (M5) 6-pin �...
  • Page 120: Power Supply ConnectOns

    PS-250 PS-250 dc power supply sold by the set wth the IC-GM651, when t s operated. IC-GM651 Before connectng the DC power cable, make sure the power s OFF, and the DC power cable polarty s correct.
  • Page 121: D ConnectNg To The Ac Outlet Through The Ps-250 And OptOnal Ps-240

    PS-250 (Purchase separately) PS-240 DC power cable (Supplied with DC power cable the PS-250) (Supplied with the IC-GM651) 12 V or 24 V battery AC power cable Terminal guard (Supplied with the PS-240) Keep the terminal guard attached after connect- To AC outlet ing cables.
  • Page 122: MountNg The TransceVer

    CONNECTIONS AND MAINTENANCE n Mounting the transceiver • OVERHEAD MOUNTING D Using the supplied mounting bracket The unversal mountng bracket suppled wth your trans- cever allows overhead or onboard mountng. Sponge* • Mount the transcever securely wth the 4 suppled screws (M5 ×...
  • Page 123: Mb-75 NstallatOn

    nstrument panel. • Make sure that the clamps algn parallel to the IC-GM651’s body. CAUTION: KEEP the transcever and mcrophone at least 1 meter away from your vessel’s magnetc navgaton compass.
  • Page 124: MCrophone (Hm-126Rb)

    CONNECTIONS AND MAINTENANCE n Microphone (HM-126RB) D Connection Insert the connector cable nto the mc connector ([MIC]) on Microphone the front panel, and tghten the cable nut as shown below. Speaker CAUTION: NEVER connect the optonal handset (HS-98) here. [MIC] q PTT SWITCH [PTT] Push and hold to transmt;...
  • Page 125: Handset (Hs-98)

    CONNECTIONS AND MAINTENANCE n Handset (HS-98) w HANDSET CONNECTOR Cradle Insert the connector cable nto the handset connector ([HAND SET]) on the rear panel, and tghten the cable nut as shown below. e PTT SWITCH [PTT] Push and hold to transmt; release to receve. D Connection Insert the connector cable nto the handset connector ([HAND SET]) on the rear panel, and tghten the cable nut...
  • Page 126: Troubleshooting

    TROUBLESHOOTING PROBLEM POSSIBLE CAUSE SOLUTION REF. The transcever does • Bad connecton to the power supply. • Check the connecton to the transcever. pgs. not turn ON. 110, 112 No sound from speaker. • Squelch level s too hgh. • Set [SQL] to the threshold pont. p.
  • Page 127: Specifications And Options

    : 2.0 W at 10% dstorton wth a 4 ˘ IC-GM651 : Approx. 1600 g load PS-250 : Approx. 2100 g * Ths specfcaton s descrbed when the IC-GM651 s used wth the PS-250. All stated specifications are subject to change without notice or obligation.
  • Page 128: D DMensOns

    SPECIFICATIONS AND OPTIONS n Options D Dimensions • PS-240 dc power supply Provdes stable 14.5 V DC output converted from 85 to 264 V AC power source. • HS-98 handset Provdes clear audo recepton durng offshore condtons and comes n handy for lstenng prvacy on board. •...
  • Page 129: Channel List

    CHANNEL LIST • International channels Frequency (MHz) Frequency (MHz) Frequency (MHz) Frequency (MHz) Frequency (MHz) Frequency (MHz) Transmit Receive Transmit Receive Transmit Receive Transmit Receive Transmit Receive Transmit Receive 156.050 160.650 156.550 156.550 157.050 161.650 156.125 160.725 156.625 156.625 157.125 161.725 156.100 160.700...
  • Page 130 MEMO...
  • Page 131 MEMO...
  • Page 132 A-6630H-1EX Prnted n Japan 2008 Icom Inc. © 1-1-32 Kammnam, Hrano-ku, Osaka 547-0003, Japan Prnted on recycled paper wth soy nk.

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