W hen Manual Input is selected, set the 7-digit address ID you wish to call with the keypad, push [ENT].
1st and 2nd digits 00 are fixed for a coast station ID. Push
--DSC Menu-Input Address ID 001111112
tnput the 9-digit Distress ID (MMSI ID) code of the ship in I distress that you wish to help with the keypad.
Rotate [SELECTOR] to move the cursor backward or forward. Push [CE] to clear the input data. ush [CLR] to cancel and back to the previous condition. P If nothing is input, MMSI ID code is set as Null. 1st digit blinks Push
--DSC Menu-Input Distress ID _________
y otate [SELECTOR] to select the nature of the distress, R push [ENT].
Undesignated, Fire Explosion, Flooding, Collision, Grounding, Capsizing, Sinking, Adrift, Abandoning Ship, Piracy (Piracy attack), Man Overboard and EPIRB Emission are available. he selected nature of the distress is stored after selecting is T finished.
--DSC Menu-Select Nature Undesignated Fire,Explosion UndesignatedFlooding Collision Fire,Explosion Flooding Collision Grounding Capsizing Sinking Adrift Abandoning Ship Piracy Man Overboard EPIRB Emission

Input the Distress ID

--DSC Menu-Input Distress ID 1212_____
--DSC Menu-Input Distress ID 121212121
input the ship in distress longitude data directly with the I keypad. After inputting, push [ENT] to set.
u our position data is displayed. Input the ship in distress Y latitude data directly with the keypad. After inputting, push [ENT] to set.
f the data is not necessary to be changed, push [ENT] to skip I the input step. ush [6 MNO ] to input N; North latitude or [7 PRS ] to input P S; South latitude. Rotate [SELECTOR] to move the cursor backward or forward. ush [CE] to clear the position and time data. (p. 45) P ush [CLR] to cancel and back to the previous screen. P 1st digit blinks Push
f the data is not necessary to be changed, push [ENT] to skip I the input step. ush [9WXY] to input W; West longitude or [3DEF] to input P E; East longitude. Rotate [SELECTOR] to move the cursor backward or forward. ush [CE] to clear the position and time data. (p. 45) P ush [CLR] to cancel and back to the previous screen. P 1st digit blinks Push
* If the transceiver has no position data, _ (under bar) is indicated.
onput the current UTC time with the keypad. After inputI ting, push [ENT] to set.
f the data is not necessary to be changed, push [ENT] to skip I the input step. Rotate [SELECTOR] to move the cursor backward or forward. ush [CE] to clear the position and time data. (see at right) P ush [CLR] to cancel and back to the previous screen. P 1st digit blinks Push

* If the transceiver has no time data, _ (under bar) is indicated.
To transmit the distress relay call with Distress Call Log: You can relay a distress call after receiving the distress call.
Distress Transmission Distress Relay Transmission
!0 ush [ENT] to transmit the distress relay call. P
mergency channel (Channel 70) is automatically selected. E
--DSC Menu-Distress Relay Are You Sure? Push to Transmit

Coast Station Your ship

TX Distress Relay
q fter receiving the distress call (p. 75), push [MENU] to A enter the DSC menu, then rotate [SELECTOR] to select Distress Relay, push [ENT].
Transmitting !1 fter transmitting the Distress Relay call, the transceiver A returns to the normal operation condition.
PTT] is activated for voice communication with a maritime sta[ tion via Channel 16.
w otate [SELECTOR] to select the desired destination. R
W hen All Ships is selected, step e does not appear. Go to step r. R e otate [SELECTOR] to select the desired pre-programmed coast station address or Manual Input for transmitting a distress relay call, push [ENT].
r istress ID of the ship in distress selection screen apD pears. Rotate [SELECTOR] to select the desired distress ID from the distress call log, push [ENT].
Distress Call Log is displayed after receiving the Distress Call. Push
t he distress information appears. Push [ENT]. T
--DSC Menu-Distress Information Distress ID 121212121 Undesignated LAT: 1223.111N LON:12323.123E UTC:10:25 Telephony
When the pre-programmed address is selected.
DSC OPERATION D Transmitting a Distress Relay Acknowledgement call
y ush [ENT] to transmit the distress relay call. P
Distress relay acknowledgement call operation is available only when the distress relay call is received. q ush [MENU] to enter the DSC menu, then rotate P [SELECTOR] to select Distress Relay ACK, push [ENT].
Distress Relay ACK is added to the DSC menu after receiving an Distress Relay call. Rotate
--DSC Menu-Select Item Distress Relay Distress Relay ACK All Ships Call Individual Call Group Call Distress Call
TX Distress Relay Transmitting
Transmitting u fter transmitting the Distress Relay call, the transceiver A returns to the normal operation condition.
--DSC Menu-Distress Relay Info From Station 1 Distress ID 121212121 Undesignated LAT: 1223.111N LON:12323.123E UTC:10:25 Telephony
t fter transmitting the Distress Relay Acknowledgement A call, the transceiver selects the Channel 16 automatically.
r ush [ENT] to transmit the Distress Relay AcknowledgeP ment call.
--DSC Menu-Distress Relay ACK Are You Sure? Push to Transmit
TX Distress Relay ACK Transmitting

Transmitting 49

n Transmitting DSC calls
T o ensure correct operation of the DSC function, please make sure you set the squelch correctly. (p. 102) w otate [SELECTOR] to select the desired category, push R [ENT].
D Transmitting an All Ships call
Large ships use Channel 70 as their listening channel. When you want to announce a message to all ships within range, use the All Ships Call function.
--DSC Menu-Select Category Safety Urgency
e otate [SELECTOR] to select a desired traffic channel R from the list as below, push [ENT].

Your ship Coast Station

--DSC Menu-Select Traffic CH 16
q ush [MENU] to enter the DSC menu, then rotate P [SELECTOR] to select All Ships Call, push [ENT].
r ush [ENT] to transmit the All ships call. P
mergency channel (Channel 70) is automatically selected. E f Channel 70 is busy, the transceiver stands by until the chanI nel becomes clear.
--DSC Menu-All Ships Call
t fter the All ships call has been transmitted, the transA ceiver selects the traffic channel (specified in step e) automatically.

to Transmit

TX All Ships Call Transmitting

All Ships Call CH70 BUSY

When Channel 70 is busy 51
The Individual call function allows you to transmit a DSC signal to a specific coast station or ship only. After transmission, wait to receive the acknowledgement call from the receiving station. The voice communication can be performed after receiving the acknowledgement Able to comply.
w Acknowledge back Your ship
D Transmitting an Individual call
q ush [MENU] to enter the DSC menu, then rotate P [SELECTOR] to select Individual Call, push [ENT].
q Individual call Coast Station
w otate [SELECTOR] to select the desired pre-programmed R individual address or Manual Input, push [ENT].
The ID code for the Individual call can be set in advance. (p. 19) Rotate
General procedure for transmitting an Individual call: Transmit a DSC signal
specific ship or a coast station A receives the signal.
--DSC Menu-Select Address Manual Input Station 1 Station 2 Station 3
Push When the pre-programmed address is selected.

Receive the ACK call

Voice communication
Only when Able to comply is received.
W hen Manual Input is selected, set the 9-digit individual ID you wish to call with the keypad, push [ENT].
--DSC Menu-Input Address ID 123123123
R r otate [SELECTOR] to select the desired intership channel or Manual Input, push [ENT].
ntership channels are already preset into the transceiver in I recommended order.
--DSC Menu-Select Intership CH
e otate [SELECTOR] to select the desired category, push R [ENT].
--DSC Menu-Select Category Routine Safety Urgency

Manual Input

W hen the coast station address is selected in step w, step r does not appear. Go to step t.
When Manual Input is selected, rotate [SELECTOR] to select the desired channel. The following channels can be set;
Continue to the next page 53
DSC OPERATION D Transmitting an Individual Acknowledgement call
t ush [ENT] to transmit the Individual call. P
mergency channel (Channel 70) is automatically selected. E f Channel 70 is busy, the transceiver stands by until the chanI nel becomes clear.
--DSC Menu-Individual Call
When receiving an Individual call, you can transmit an acknowledgement call (Able to comply, Propose New Channel or Unable to comply) by using the on screen prompts (Quick ACK). Also, you can send an acknowledgement through the menu system (Manual ACK.)
TX Individual Call Transmitting
To transmit Able to Comply Quick ACK: fter an Individual call is received, push [CLR] to stop the A alarm, then rotate [SELECTOR] to indicate the received message log. And then, push [ENT]. (Go to step r as at right.)
--DSC LOG-Individual Call From Station 1 Routine Telephony CH08
Transmitting y fter the Individual call has been transmitted, the transA Individual Call ceiver automatically returns to the previous indication (before entering the DSC menu.) BUSY CH70 A u fter receiving the acknowledgement call (Able to comply), the voice communication can be performed with the responding ship. See p. 83 for details. When Channel 70 is busy
To transmit Able to Comply Manual ACK: P q ush [MENU] to enter the DSC menu, then rotate [SELECTOR] to select Individual ACK, push [ENT].
Individual ACK is added to the DSC menu after receiv ing an Individual call.
--DSC Menu-Select Item Distress Relay All Ships Call Individual Call Individual ACK Group Call Distress Call
eThe call information appears, push [ENT].
--DSC Menu-Individual Call Info From Station 1 Routine Telephony CH08
r otate [SELECTOR] to select Able to Comply, R push [ENT].
--DSC Menu-Select Action Able to Comply Propose New Channel Unable to Comply
w otate [SELECTOR] to select the desired individual adR dress or ID code, push [ENT].
To transmit Propose New Channel Quick ACK: fter an Individual call is received, push [CLR] to stop the A alarm, then rotate [SELECTOR] to indicate the received message log. And then, push [ENT]. (Go to step r as at right.)
t ush [ENT] to transmit the Individual acknowledgement P call to the calling station.
--DSC Menu-Individual ACK
TX Individual ACK Transmitting
To transmit Propose New Channel Manual ACK: P q ush [MENU] to enter the DSC menu, then rotate [SELECTOR] to select Individual ACK, push [ENT].
Transmitting y fter the Individual acknowledgement call has been transA Individual by mitted, the specified channel (specifiedACKthe calling station) is selected automatically. CH70 BUSY

25W TAG Received All Ships <Station 1 INT
e he received message log is displayed. T
All Ships Call From Station 1 Safety Telephony CH16 Push to Change CH
25W TAG Received All Ships <Station 1
r ush [ENT] to monitor the channel specified by the callP ing station.
After receiving the All Ships call from Station 1. < means from.
w otate [SELECTOR] to indicate the received message log. R
D Receiving an Individual call
q hile monitoring Channel 70 and an Individual call is reW ceived:
he alarm sounds depending on the received category. T - Push [CLR] to stop the alarm. Received Individual appears in the display. blinks in the display.
25W TAG Received Individual <Station 1 INT
25W TAG Received Individual <Station 1
r ush [ENT] to reply the call and change the channel P specified by the calling station for voice communication. (p. 54)
After receiving the Individual call from Station 1. < means from.
DSC OPERATION D Receiving an Individual Acknowledgement call
When receiving Able to Comply: W q hile monitoring Channel 70 and an Individual acknowledgement call Able to comply is received:
he alarm sounds depending on the received category. T - Push [CLR] to stop the alarm. Received Able ACK appears in the display. blinks in the display.
25W TAG Received Able ACK <Station 1 INT
Individual ACK From Station 1 Routine Telephony CH08 Able to Comply Push

to Change CH

25W TAG Received Able ACK <Station 1
r ush [ENT] to change the channel (specified by you P when the individual call is transmitted) for voice communication.
After receiving the Able to comply from Station 1. < means from.
When receiving Propose New Channel: W q hile monitoring Channel 70 and an Individual acknowledgement call Able to comply is received:
Individual ACK From Station 1 Routine Telephony CH77 Able to Comply Push
r ush [ENT] to reply the call and change the channel proP posed by the called station for voice communication.
When receiving Unable to Comply: W q hile monitoring Channel 70 and an Individual acknowledgement call Unable to comply is received:
he alarm sounds depending on the received category. T - Push [CLR] to stop the alarm. Received Unable ACK appears in the display. blinks in the display.
25W TAG Received Unable ACK <Station 1 INT
Individual ACK From Station 1 Routine Telephony CH77 Unable to Comply No Reason Given Push to Exit
25W TAG Received Unable ACK <Station 1
After receiving the Unable to comply from Station 1. < means from.

e otate [SELECTOR] to select the desired message, push R [ENT].
essages which are blinking have not been read yet. M The unread message blinks.
--DSC Menu-Select Message Distress ACK Distress Distress Call Distress Relay
r otate [SELECTOR] to scroll the selected message. R
he stored message has various information depending on the T type of Distress call. Push [ENT] to select the channel 16. Push [CLR] to cancel and back to the previous screen. ush [CE] to delete the displayed log and returns to Select P Message screen. ush [F], then push [8 PRT ] to print out the received mesP sage information.
In case of the Distress Acknowledgement call

--DSC MENU--

Distress ACK From Coast St.1 Distress ID 121111113 Undesignated LAT: 1223.111N LON:12323.123W UTC:10:25 DIS:1331.6nm ANG:180.5 Telephony Push to Change CH
In case of the Distress call
Distress Call From 121111113 Undesignated LAT: 1223.111N LON:12323.123W UTC:10:25 DIS:1331.6nm ANG:180.5 Telephony Push to Change CH
In case of the Distress Cancel
In case of the Distress Relay Acknowledgement call
Distress Cancel From 121111113 Distress ID 121111113 Undesignated LAT: 1223.111N LON:12323.123W UTC:10:25 DIS:1331.6nm ANG:180.5 Telephony Push to Change CH
Distress Relay ACK To Individual From Station 2 Distress ID 121111113 Undesignated LAT: 1223.111N LON:12323.123W UTC:10:25 DIS:1331.6nm ANG:180.5 Telephony Push to Change CH
In case of the Distress Relay call
Distress Relay To Individual From Station 1 Distress ID 121111113 Undesignated LAT: 1223.111N LON:12323.123W UTC:10:25 DIS:1331.6nm ANG:180.5 Telephony Push to Change CH
When [CE] is pushed, the following screen appears. Push [ENT] to delete the selected log data.
--DSC Menu-Log Deletion Are You Sure?

to Delete

DSC OPERATION D Other messages
e otate [SELECTOR] to scroll to the desired message, R push [ENT].
essages which are blinking have not read yet. M Rotate
--DSC Menu-Select Message Individual Call All Ships Call Position Reply Group Call
The unread message blinks. Push
r otate [SELECTOR] to scroll the message. R
he stored message has various information depending on the T type of DSC call. Push [CLR] to cancel and back to the previous screen. ush [CE] to delete the displayed log and returns to Select P Message screen. ush [F], then push [8 PRT ] to print out the received mesP sage information.
w otate [SELECTOR] to select Others. R
In case of the Individual call
Individual Call From Station 1 Routine Telephony CH08
Push [ENT] to reply the call. (p. 54)
In case of the Individual Acknowledgement call Able to Comply

w otate [SELECTOR] to select Position Auto R ACK, push [ENT].
--DSC Menu-Set Up DEL:Individual ID DEL:Group ID Auto Print Position Auto ACK DSC Data Output CH70 SQL Level
DSC OPERATION D DSC Data Output
Select a DSC Data Output function from List Station, All Station or OFF. When receiving position acknowledgment or DSC call including the position information, the transceiver outputs it to the external equipment via the GPS RECEIVER/EXTERNAL SPEAKER connector to indicate the received position data on the hydrographic chart via the connected plotter, etc. P q ush [MENU] to enter the DSC menu, then rotate [SELECTOR] to select Set up, push [ENT].
e otate [SELECTOR] to select the DSC Data Output funcR tion from List Station, All Station or OFF.
List Station : utputs the position data from the specified staO tions listed in the DSC individual ID screen. All Station : Outputs the position data from all stations. OFF : utputs no position data to external equipment. O
--DSC Menu-DSC Data Output List Station All Station OFF
ush [CLR] to cancel and back to the previous screen. P
Push Pushing [CLR] also returns to DSC menu.
w otate [SELECTOR] to select DSC Data Output, R push [ENT].
--DSC Menu-Set Up DEL:Group ID Auto Print Position Auto ACK DSC Data Output CH70 SQL Level Medical Transports
D Squelch Level Setting for Channel 70 Receiver
Set the desired squelch level independently for the channel 70 receiver.
e otate [SELECTOR] to set the desired squelch level on R channel 70 from Very High Noise, High Noise or Normal Condition.
Very High Noise : Very high noise is emitted. High Noise : High noise is emitted. Normal Condition: The squelch level is normal condition.
--DSC Menu-CH70 SQL Level Very High Noise High Noise Normal Condition
q ush [MENU] to enter the DSC menu, then rotate P [SELECTOR] to select Set up, push [ENT].
w otate [SELECTOR] to select CH70 SQL Level, R push [ENT].
--DSC Menu-Set Up Auto Print Position Auto ACK DSC Data Output CH70 SQL Level Medical Transports Neutral Ship Call
DSC OPERATION D edical Transports item Appearance in DSC M Set up menu
The Medical Transports item can be set to appear or disappear in DSC Set up menu.
e otate [SELECTOR] to select the item appearance in R DSC Set up menu.
--DSC Menu-Medical Transports Appear in Menu Disappear in Menu
Medical Transports and Neutral Ship Call disappear in default.
w otate [SELECTOR] to select Medical Transports, R push [ENT].
--DSC Menu-Set Up Position Auto ACK DSC Data Output CH70 SQL Level Medical Transports Neutral Ship Call Self Check Test
The Neutral Ship Call item can be set to appear or disappear in DSC Set up menu. q ush [MENU] to enter the DSC menu, then rotate P [SELECTOR] to select Set up, push [ENT].

D eutral Ship Call item Appearance in DSC N Set up menu
e otate [SELECTOR] to select each item appearance in R DSC Set up menu.
--DSC Menu-Neutral Ship Call Appear in Menu Disappear in Menu
w otate [SELECTOR] to select Neutral Ship Call, R push [ENT].
--DSC Menu-Set Up DSC Data Output CH70 SQL Level Medical Transport Neutral Ship Call Self Check Test Exit
DSC OPERATION D elf Check Testing S
According to regulations, the IC-GM651 has a self testing capability to check the internal AFSK encoder and decoder circuits without signal transmission via the transceiver. q ush [MENU] to enter the DSC menu, then rotate P [SELECTOR] to select Set up, push [ENT].
e ush [ENT] to start the Self Check Testing. P r he result of the Self Check Testing is indicated. T
hen the result is NG, the transceiver should be repaired. W ush [CLR] to cancel and back to the previous screen. P ush [ENT] to restart the Self Check Test. P
--DSC Menu-Self Check Test OK Push to Start
When the result is OK Push
--DSC Menu-Self Check Test NG Push to Start
w otate [SELECTOR] to select Self Check Test, R push [ENT].
--DSC Menu-Set Up DSC Data Output CH70 SQL Level Medical Transports Neutral Ship Call Self Check Test Exit

When the result is NG

SET MODE

n Set mode programming

Set mode is used to change the conditions of the transceivers functions: Scan type, Scan resume timer, Beep tone, Internal speaker, Display contrast, Microphone type and Cursor movement. A vailable functions may differ depending on dealer setting. N OTE: The transceiver automatically returns to the normal operation condition when no operation is performed for 1 minutes in Set mode. W q hile pushing and holding [6 C], push [POWER] to enter Set mode.
Turn power OFF in advance.
wAfter the display appears, release [6C]. e otate [SELECTOR] to select the desired item, push R [ENT]. R r otate [SELECTOR] to select the desired condition of the item, push [ENT] to set. P t ush [CLR], or rotate [SELECTOR] to select Exit then push [ENT] to exit Set mode and returns to normal condition. SET MODE CONSTRUCTION
--Set Mode-Scan Type Scan Timer Beep Internal Speaker Display Contrast MIC Cursor Movement Exit

n Set mode items

The transceiver has 2 scan types: normal scan and priority scan. Normal scan searches all TAG channels in the selected channel group. Priority scan searches all TAG channels in sequence while monitoring Channel 16.

D can type S

D Beep tone
You can select silent operation by turning beep tones OFF, or you can have confirmation beeps sound at the push of a key and rotating a selector by turning beep tones ON.

--Set Mode-Beep ON OFF

--Set Mode-Scan Type Priority Normal
(Default: ON) (Default: Priority)

D Scan resume timer

D Internal speaker
The scan resume timer can be selected as a pause (OFF) or timer scan (ON). OFF: he scan pauses until the signal disappears and then T resumes 2.5 sec. later. T ON : he scan pauses on a channel which receives a signal, then resumes after 5 sec. has passed.
When an external speaker is connected and the transceivers internal speaker is not required, the speaker of the transceiver and the connected microphone can be deactivated.
--Set Mode-Scan Timer ON OFF
--Set Mode-Internal Speaker ON OFF Do not select OFF when no external speaker is connected.

(Default: ON)

(Default: OFF)
(Downward) movement You can select the direction of [SELECTOR] rotation from CW (clockwise) or CCW (counter-clockwise) to move the cursor downward. Turn Selector CW : Rotate [SELECTOR] clockwise for the cursor downward.
otate [SELECTOR] counter-clockwise R for the cursor upward.

D Display contrast

This item adjusts the contrast of the LCD in 8 steps.
--Set Mode-Display Contrast 4 (Default: 5) 1

D Cursor

Turn Selector CCW : otate [SELECTOR] counter-clockR wise for the cursor downward.

Rotate

otate [SELECTOR] clockwise for the R cursor upward.
--Set Mode-Cursor Movement Turn Selector CW Turn Selector CCW

D Microphone type

You can select the usable microphone type from Hand microphone and Handset.
--Set Mode-MIC Hand MIC Handset
(Default: Turn Selector CCW)

(Default: Hand MIC)

CONNECTIONS AND MAINTENANCE

n Connections

q t DR/CLONE CONNECTORS V onnects a voice recorder. C
NC NC VDR () GND NC ICF VDR (+) NC
Transceivers rear panel view
qANTENNA CONNECTOR onnects a marine VHF antenna with a PL-259 connecC tor to the transceiver. AUTION: Transmitting without an antenna will damC age the transceiver. wANTENNA CONNECTOR (for receiving on Channel 70) onnects a marine VHF antenna with a PL-259 connecC tor to the transceiver. eD-SUB 25-PIN (for a printer connection) onnects a printer (IBM centronics or compatible) to the C transceiver. rHANDSET CONNECTOR Connect the optional handset only. AUTION: NEVER connect the optional hand microphone C here. They may cause damage to the transceiver.

Supplied bolt

A r ttach the clamps on either side of the IC-GM651.
Make sure that the clamps align parallel to the IC-GM651s body.
t ighten the end bolts on the clamps (rotate clockwise) so T that the clamps press firmly against the inside of the instrument control panel. T y ighten the locking nuts (rotate counterclockwise) so that the IC-GM651 is securely mounted in position as below.

End bolt

Locking nut
e ttach the 2 supplied bolts (Mmm) on either side of A the IC-GM651.
u onnect the antenna and power cable, then return the C instrument control panel to its original place. 115

n Microphone (HM-126RB)

Microphone Speaker

D Connection

Insert the connector cable into the mic connector ([MIC]) on the front panel, and tighten the cable nut as shown below. C AUTION: NEVER connect the optional handset (HS-98) here.
q PTT SWITCH [PTT] Push and hold to transmit; release to receive. (p. 9) w CHANNEL UP/DOWN KEYS [Y]/[Z] ush either key to change the operating channels, Set P mode settings, etc. (pgs. 7, 8, 104) hecks TAG channels, changes scanning direction or C resumes the scan manually during scan. (p. 16) e TRANSMIT POWER KEY [HI/LO] ush to toggle the power high and low. (p. 8) P
hile pushing and holding [HI/LO], turn power ON to W toggle the microphone lock function ON and OFF. (p. 12)

n Handset (HS-98)

Cradle
w HANDSET CONNECTOR Insert the connector cable into the handset connector ([HAND SET]) on the rear panel, and tighten the cable nut as shown below. e PTT SWITCH [PTT] Push and hold to transmit; release to receive.

Handset

Insert the connector cable into the handset connector ([HAND SET]) on the rear panel, and tighten the cable nut as shown below.
q SPEAKER SWITCH Toggle the connected external speaker output ON and OFF when pick the handset up. When the switch is set to position - mits the receiving audio from the connected external E speaker. When the switch is set to position - Mutes the connected external speaker output. The receiving audio can be heard from the earpiece of the handset. - eplace the handset into the cradle to emits the reR ceiving audio from the connected external speaker.
C AUTION: NEVER connect the optional hand microphone (HM-126RB) here.

[HAND SET]

TROUBLESHOOTING
PROBLEM POSSIBLE CAUSE SOLUTION Check the connection to the transceiver. Set [SQL] to the threshold point. Set [VOL] to a suitable level. Drain water from the speaker. Turn the internal speaker ON in Set mode. REF. pgs. 109,

110, 112

The transceiver does Bad connection to the power supply. not turn ON. No sound from speaker. Squelch level is too high. Volume level is too low. Speaker has been exposed to water. Internal speaker is turned OFF.

p. 8 p. 8 p. 13 p. 107 pgs. 7, 8, 121 p. 8 p. 16 p. 107 p. 8 p. 18
Transmitting is impos- ome channels are programmed for low Change channels. S sible, or high power can power or receive only in regulations. not be selected. The output power is set to low. Push [H/L] to select high power. Scan does not start. No beeps. Distress call cannot be transmitted. TAG channel is not programmed. Beep tones are turned OFF. The squelch is open. Set the desired channels as TAG channels. Turn the beep tone ON in Set mode. Set [SQL] to the threshold point.
MMSI (DSC self ID) code is not programmed. Program the MMSI (DSC self ID) code.
SPECIFICATIONS AND OPTIONS

n Specifications

Frequency coverage :TX 156.000161.450 MHz RX 156.000163.425 MHz Mode : M (16K0G3E), DSC (16K0G2B) F Current drain (at 24 V) : X high (25 W) 3.5 A T Max. audio 1A Power supply requirement : 2/24 V DC (10.8 to 31.2 V) 1 Frequency stability : 5 ppm Operating temp. range : 15C to +55C Antenna impedance :50 nominal Input impedance (Hand mic) :2 k Output impedance (audio) :4 VDR interface Impedance :Ballanced 600 Ground :Floating Audio level :TX 4 dBm (typical) (at 1 kHz, 3 kHz deviation) RX 3 dBm (typical) (at 1 kHz, 3 kHz deviation) imensions (Projections not included) D IC-GM651 :220(W) 110(H) 109.4(D) mm PS-250 :250(W) 67(H) 200(D) mm Weight IC-GM651 :Approx. 1600 g PS-250 :Approx. 2100 g

D General

D Transmitter
F output power R Modulation system Max. frequency deviation Spurious emissions Adjacent channel power Audio harmonic distortion Residual modulation Audio frequency response
: 5 W and 1 W 2 : ariable reactance frequency V modulation :5.0 kHz :Less than 0.25 W :More than 70 dB : ess than 10% L (at 1 kHz, 60% deviation) :More than 40 dB : 1 to 3 dB of 6 dB/octave + range from 300 Hz to 3000 Hz

D Receiver

Receive system Sensitivity (20 dB SINAD)
:Double conversion superheterodyne : 5 dB emf (typical) 5 dB emf (typical) (CH 70 receiver) Squelch sensitivity :Less than 2 dB emf Spurious response :More than 73 dB Intermodulation :More than 75 dB Adjacent channel selectivity :More than 75 dB Hum and noise :More than 45 dB Audio output power :.0 W at 10% distortion with a load * his specification is described when the IC-GM651 is used with T the PS-250.
All stated specifications are subject to change without notice or obligation.

D Dimensions

n Options
PS-240 ac-dc power supply Provides stable 14.5 V DC output converted from 85 to 264 V AC power source. HS-98 handset Provides clear audio reception during offshore conditions and comes in handy for listening privacy on board. HM-126RB hand microphone Equipped with []/[] (channel up/down,) [HI/LO], [PTT], speaker and microphone. MB-75 flush mount kit For mounting the transceiver to a panel.

Unit: mm

CHANNEL LIST

International channels

CH Frequency (MHz) Transmit 156.050 156.100 156.150 156.200 156.250 156.300 156.350 156.400 156.450 156.500 Receive 160.650 160.700 160.750 160.800 160.850 156.300 160.950 156.400 156.450 156.500 CH Frequency (MHz) Transmit 156.550 156.600 156.650 156.700 156.800 156.900 156.950 157.000 Receive 156.550 156.600 156.650 156.700 156.750 156.800 156.850 161.500 161.550 161.600 CH Frequency (MHz) Transmit 157.050 157.100 157.150 157.200 157.250 157.300 157.350 157.400 156.025 156.075 Receive 161.650 161.700 161.750 161.800 161.850 161.900 161.950 162.000 160.625 160.675 CH 71 Frequency (MHz) Transmit 156.125 156.175 156.225 156.275 156.325 156.375 156.425 156.475 156.575 Receive 160.725 160.775 160.825 160.875 160.925 156.375 156.425 156.475 156.525 156.575 CH 74 Frequency (MHz) Transmit 156.625 156.675 156.725 Receive 156.625 156.675 156.725 156.775 156.825 156.875 161.525 161.575 161.625 161.675 CH 88
Receive 161.725 161.775 161.825 161.875 161.925 157.375 157.425
Frequency (MHz) Transmit 157.125 157.175 157.225 157.275 157.325 157.375 157.425
75*3 156.775 76*3 156.156.875 156.925 156.975 157.025 157.075
15*2 156.750 17*2 156.850

70*1 156.525

*1 DSC operation only. *2 Channels 15 and 17 may also be used for on-board communications provided the effective radiated power does not exceed 1 W, and subject to the national regulations of the administration concerned when these channels are used in its territorial waters. *W only. The use of these channels should be restricted to navigation-related communications only and all precautions should be taken to avoid harmful interference to channel 16, e.g. by limiting the output power to 1 W or by means of geographical separation.
A-6630H-1EX Printed in Japan 2008 Icom Inc.
Printed on recycled paper with soy ink.
1-1-32 Kamiminami, Hirano-ku, Osaka 547-0003, Japan