INSTRUCTION MANUAL

iM31VHF MARINE TRANSCEIVER

New2001

New2001

IN CASE OF EMERGENCY

If your vessel requres assstance, contact other vessels and the Coast Guard by sendng a dstress call on Channel 16.

RECOMMENDATION

CLEAN THE TRANSCEIVER THOROUGHLY WITH FRESH WATER after exposure to saltwater, and dry t before opera-ton. Otherwse, the transcever’s keys, swtches and control-lers may become noperable due to salt crystallzaton.

NOTE: DO NOT wash the transcever n water f there s any reason to suspect the waterproofng may not be effectve. For example, n cases where the battery pack rubber seal s damaged, the transcever/battery pack s cracked or broken, or has been dropped, or when the battery pack s detached from the transcever.

USING CHANNEL 16

DISTRESS CALL PROCEDURE

1. “MAYDAY MAYDAY MAYDAY.”

2. “THIS IS ...........................” (name of vessel)

3. Your call sgn or other ndcaton of the ves-sel.

4. “LOCATED AT ..................... ” (your poston)

5. The nature of the dstress and assstance requred.

6. Any other nformaton whch mght facltate the rescue.

FOREWORDThank you for purchasng ths Icom product. The IC-M31 VHF MARINE TRANSCEIVER s desgned and bult wth Icom’s state of the art technology and craftsmanshp. Wth proper care ths product should provde you wth years of trouble-free op-eraton.

IMPORTANTREAD ALL INSTRUCTIONS carefully and com-pletely before usng the transcever.

SAVE THIS INSTRUCTION MANUAL—Ths nstructon manual contans mportant operatng nstructons for the IC-M31.

EXPLICIT DEFINITIONS

FEATURES Waterproof construction Bult tough to wthstand the punshng marne envron-

ment, the transcever’s submersble constructon meets IPX7* requrements for waterproof protecton (1 meter depth for 30 mn.).

* Only when the battery pack, top plate and flexble antenna are attached.

Dualwatch and tri-watch functions Convenent functons whch allow you to montor the

dstress channel (Ch 16) whle recevng a channel of your choce—dual watch; or montor the dstress channel and another channel whle recevng a channel of your choce—tr-watch.

Large, easy-to-read LCD Wth dmensons of 16(H) × 32(W) mm, the functon ds-

play s easy to read and shows operatng condtons at a glance. Backlghtng and contrast can be adjusted to sut your preferences.

Simple operation 9 large buttons on the front panel provde user-frendly

operaton. The ndependent volume and channel buttons are located on the front panel for convenent one-hand operaton.

WORD DEFINITION

RWARNINGPersonal njury, fre hazard or electrc shock may occur.

CAUTION Equpment damage may occur.

NOTEIf dsregarded, nconvenence only. No rsk of personal njury, fire or electrc shock.

PRECAUTIONRWARNING! NEVER connect the transcever to an AC outlet. Ths may pose a fire hazard or result n an electrc shock.

RWARNING! NEVER hold the transcever so that the antenna s very close to, or touchng exposed parts of the body, especally the face or eyes, whle transmttng. The transcever wll perform best f the mcrophone s 5 to 10 cm away from the lps and the transcever s vertcal.

RWARNING! NEVER connect the transcever to a power source other than the BP-223, BP-224, or BP-252. Such a connecton wll run the transcever.

DO NOT use or place the transcever n drect sunlght or n areas wth temperatures below –15°C or above +55°C.

KEEP the transcever out of the reach of chldren.

KEEP the transcever at least 0.9 meters away from your vessel’s magnetc navgaton compass.

BE CAREFUL! The transcever’s rght-sde panel wll become hot when operatng contnuously for long perods.

BE CAREFUL! The transcever meets IPX7* requre-ments for waterproof protecton. However, once the trans-cever has been dropped, waterproof protecton cannot be guaranteed because of possble damage to the transcever's case or the waterproof seal.* Only when the battery pack, top plate and flexble antenna are at-

tached.

MAKE SURE the flexble antenna, top plate and battery pack are securely attached to the transcever, and that the antenna, top plate and battery pack are dry before attach-ment. Exposng the nsde of the transcever to water wll result n serous damage to the transcever.After exposure to water, clean the battery contacts thor-oughly wth fresh water and dry them completely to remove any water or salt resdue.

New2001

Icom, Icom Inc. and the Icom logo are regstered trademarks of Icom Incor-porated (Japan) n the Unted States, the Unted Kngdom, Germany, France, Span, Russa and/or other countres.

v

New2001

IN CASE OF EMERGENCY ............................................... RECOMMENDATION .......................................................... FOREWORD ...................................................................... IMPORTANT ...................................................................... EXPLICIT DEFINITIONS .................................................... FEATURES ......................................................................... PRECAUTION ................................................................... TABLE OF CONTENTS ..................................................... v

1 OPERATING RULES 12 SUPPLIED ACCESSORIES AND ATTACHMENTS 2–3 Suppled accessores ................................................... 2 Attachments ................................................................. 23 PANEL DESCRIPTION 4–6 Front, top and sde panels ........................................... 4 Functon dsplay .......................................................... 54 BASIC OPERATION 7–12 Channel selecton ....................................................... 7 Adjustng the volume level .......................................... 9 Adjustng the squelch level ......................................... 9 Recevng and transmttng ....................................... 10 Call channel programmng ........................................ 11 Lock functon ............................................................. 12 Automatc backlghtng .............................................. 12 Montor functon ........................................................ 12

5 SCAN OPERATION 13–14 Scan types ................................................................ 13 Settng tag channels ................................................. 14 Startng a scan .......................................................... 146 DUALWATCH/TRI-WATCH 15 Descrpton ................................................................ 15 Operaton .................................................................. 157 SET MODE 16–20 SET mode programmng ........................................... 16 SET mode tems ....................................................... 178 BATTERY CHARGING 21–24 Battery chargng ........................................................ 21 Battery cautons ........................................................ 21 Optonal battery case ................................................ 22 Optonal battery chargers ......................................... 239 OPTIONAL SWIVEL BELT CLIP 25 MB-87 contents ......................................................... 25 To attach ................................................................... 25 To detach .................................................................. 2510 TROUBLESHOOTING 2611 CHANNEL LIST 2712 SPECIFICATIONS 2813 OPTIONS 2914 DOC 30

TABLE OF CONTENTS

1

New2001

OPERATING RULES1D Priorities• Read all rules and regulatons pertanng to prortes and

keep an up-to-date copy handy. Safety and dstress calls take prorty over all others.

• You must montor Channel 16 when you are not operatng on another channel.

• False or fraudulent dstress calls are prohbted under law.

D Privacy• Informaton overheard but not ntended for you cannot law-

fully be used n any way.

• Indecent or profane language s prohbted.

D Radio licenses(1) SHIP STATION LICENSEWhen your craft s equpped wth a VHF FM transcever, you must have a current rado staton lcense before usng the transcever. It s unlawful to operate a shp staton whch s not lcensed.

Inqure through your dealer or the approprate government agency for a Shp-Radotelephone lcense. Ths lcense ncludes the call sgn whch s your craft’s dentfcaton for rado purposes.

(2) OPERATOR’S LICENSEA restrcted Radotelephone Operator Permt s the lcense most often held by small vessel rado operators when a rado s not requred for safety purposes.

The Restrcted Radotelephone Operator Permt must be posted near the transcever or be kept wth the operator. Only a lcensed rado operator may operate a transcever.

However, non-lcensed ndvduals may talk over a trans-cever f a lcensed operator starts, supervses, ends the call and makes the necessary log entres.

A current copy of the applcable government rules and regu-latons s only requred to be on hand for vessels n whch a rado telephone s compulsory. However, even f you are not requred to have these on hand t s your responsblty to be thoroughly acquanted wth all pertnent rules and regula-tons.

2

2SUPPLIED ACCESSORIES AND ATTACHMENTS

12

Supplied accessoriesThe followng accessores are suppled: Qty.• Flexble antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1• Handstrap. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1• Belt clp. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1• Battery pack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1• Battery charger (wth 2 screws) . . . . . . . . . . . . . . . . . . . . 1• AC adapter*1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1• Top plate (double-sded tape)*2 . . . . . . . . . . . . . . . . . . . . 1*1 Not suppled wth some versons.*2 Use the top plate as a spare. Ask your dealer for detals.

AttachmentsD Flexible antennaConnect the suppled flexble an-tenna to the antenna connector.

CAUTION:• NEVER carry the transcever

by holdng the antenna.• Transmttng wthout an an-

tenna may damage the trans-cever.

D HandstrapPass the handstrap through the loop on the sde of the transcever as llustrated at rght. Facltates carryng.

D Belt clipAttach the belt clp to the transcever as llustrated below.

To attach the belt clp

To remove the belt clpTop plate

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2 SUPPLIED ACCESSORIES AND ATTACHMENTS

New2001

D Battery packTo remove the battery pack:Turn the screw counterclockwse, then pull the battery pack n the drecton of the arrow as shown below.

To attach the battery pack:Insert the battery pack n the IC-M31 completely, then turn the screw clockwse.

NEVER remove or nsert the battery pack when the transcever s wet or soled. Ths may result water or dust gettng nto the transcever/battery pack and may result n the transcever beng damaged.

NOTE: When removng or attachng the battery pack, use a con or flat-blade screwdrver to loosen or tghten the bottom screw.

CAUTION: When attachng or removng a battery pack, make sure the rubber seal s set n the groove of the battery pack correctly. If the seal s not neatly n the groove t may be damaged when attachng the battery pack. If the seal s damaged, waterproofing s not guaranteed.

OPEN

LOCK

Screw poston when removng battery

OPEN

LOCK

Screw poston when attachng battery

Make sure both the rubber seal (purple) s set to the groovecorrectly and dust or else does not adhere to t.

Battery pack Battery pack

Rubber seal

Groove

Correct position Incorrect position

NOTE:When attachng a battery pack, make sure dust or else does not adhere to the rubber seal. If dust or else s on the seal when attachng a battery pack, the water resstant may be reduced.

4

3PANEL DESCRIPTION

23

Front, top and side panelsq POWER SWITCH [PWR] Push and hold to turn power ON and OFF.

w ANTENNA CONNECTOR (p. 2) Connects the suppled antenna.

e SCAN/DUAL KEY [SCN•DUAL] • Starts and stops normal or prorty scan. (p. 14) • Enters watch mode when pushed for 1 sec. (p. 15) • Exts watch mode when pushed durng watch operaton.

(p. 15)

r TRANSMIT POWER/LOCK KEY [H/L•LOCK] • Selects hgh or low power when pushed. (p. 10) • Toggles the lock functon ON/OFF when pushed for 1

sec. (p. 12)

t VOLUME UP/DOWN KEYS [+]/[–]•[VOL] • Adjusts the volume level. (p. 9) • After pushng [SQL•MONI], push to adjust the squelch

level. (p. 9)

y SQUELCH KEY [SQL•MONI] • Push ths key, then adjust the squelch level wth [+]/[–].

(p. 9) • Manually opens the squelch for montorng the channel

whle pushed and held. (p. 12) • Whle pushng ths key, turn power ON to enter the set

mode. (p. 16)

Contnue to the next page.

r

q

o

u

i

!0

w

y

t

e

Mcrophone

Functon dsplay (p. 5)

Speaker

5

3 PANEL DESCRIPTION

New2001

Front, top and sde panels (Contnued)

u CHANNEL UP/DOWN KEYS [Y]/[Z]•[TAG] • Selects an operatng channel. (pgs. 7, 8) • Selects the SET mode condton of the tem. (p. 16) • Checks tag channels or changes scannng drecton dur-

ng scan. (p. 14) • Sets or clears the dsplayed channel as a tag (scanned)

channel when pushed both keys for 1 sec. (p. 14) • Whle pushng ths key, turn power ON to clear all tag

channels n the channel group. (p. 14)

i DIAL/CHANNEL GROUP KEY [DIAL] • Push to return to the channel selecton before selectng

the channel 16 or the call channel wth [16•C]. • Selects one of 2 regular channel groups n sequence

when pushed for 1 sec. (p. 8) - Internatonal, U.S.A.*1 (or ATIS*2) channels are avalable.

*1 Avalable for the UK verson only *2 Avalable for the German verson only

o CHANNEL 16 KEY [16•C] • Selects Channel 16 when pushed. (p. 7) • Selects the call channel when pushed for 1 sec. (p. 7) • Enters call channel programmng condton when the

call channel s selected and ths key s pushed for 3 sec. (p. 11)

• Exts set mode when pushed durng set mode operaton. (p. 16)

!0 PTT SWITCH [PTT] Push and hold to transmt; release to receve.

Function display

q TRANSMIT INDICATOR (p. 10) Appears whle transmttng.

w BUSY INDICATOR Appears when recevng a sgnal or when the squelch

opens. (p. 10) “ ” blnks whle montorng. (p. 12)

e TAG CHANNEL INDICATOR (p. 14) Appears when a tag channel s selected.

r CALL CHANNEL INDICATOR (p. 7) Appears when the call channel s selected.

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!5 !3!4

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!2!1

!0

!7

!6

6

3PANEL DESCRIPTION

New2001

t LOCK INDICATOR (p. 12) Appears whle the lock functon s actvated.

y BATTERY INDICATOR Indcates remanng battery power.

Indication

Full MiddleChargingrequired No batteryBattery level

blinks when the battery is exhaustion.blinks when the battery over charged.

u SCAN INDICATOR (p. 14) Blnks whle scannng.

i DUALWATCH/TRI-WATCH INDICATORS (p. 15) “DUAL” appears durng dualwatch; “TRI” appears durng

tr-watch.

o DUPLEX INDICATOR Appears when a duplex channel s selected.

!0 SUB CHANNEL READOUT • Indcates Channel 16 durng prorty scan, dualwatch or

tr-watch. (p. 15) • Indcates the SET mode tem whle n SET mode. (p. 16) • Indcates the squelch level whle squelch settng. (p. 9) • Indcates the volume level whle volume settng. (p. 9)

!1 SQUELCH LEVEL INDICATOR Shows the squelch level.

!2 VOLUME LEVEL INDICATOR Shows the volume level.

!3 VOLUME LEVEL ADJUSTING INDICATOR Blnks whle adjustng the volume level.

!4 SQUELCH LEVEL ADJUSTING INDICATOR Blnks whle adjustng the squelch level.

!5 CHANNEL NUMBER READOUT • Indcates the selected operatng channel number. • In SET mode, ndcates the selected condton.

!6 CHANNEL GROUP INDICATOR (p. 8) “ ” appears when Internatonal; “ ” appears when

U.S.A. (U.K. verson only); “ATIS” appears when the chan-nel group n whch ATIS functon s actvated (German verson only).

!7 LOW POWER INDICATOR (p. 10) • “LOW” appears when low power s selected. • “LOW” blnks when swtchng forced low power mode

because of a hgh temperature error or low voltage.

3

7

New2001New2001

BASIC OPERATION4 Channel selection

IMPORTANT: Pror to usng the transcever for the frst tme, the battery pack must be fully charged for optmum lfe and operaton. To avod damage to the transcever, turn the power OFF whle chargng.

D Channel 16Channel 16 (Dstress channel) s used for establshng ntal contact wth another staton and for emergency communca-tons. Channel 16 s automatcally montored durng both du-alwatch and tr-watch. Whle standng by, you must montor Channel 16.

q Push [16•C] to select Channel 16.w Push [DIAL] to return to the condton before selectng

Channel 16, or push [Y]/[Z] to select the operatng chan-nel.

D Call channelEach regular channel group has a separate call channel. In addton, the call channel s montored durng tr-watch. The call channels can be re-programmed (p. 11) and are used to store your most often used channels n each channel group for quck recall.

q Push [16•C] for 1 sec. to select the call channel n the se-lected channel group.

• “CALL” and the call channel number appear. • Each channel group may have ts own call channel after pro-

grammng a call channel. See the “Call channel programmng” on p. 11 for detals.

w Push [DIAL] to return to the condton before selectng the call channel, or push [Y]/[Z] to select the operatng chan-nel.

C

Push

Channel 16 is the default setting.(depending on version)

C

Pushfor 1 sec.

New2001

8

4BASIC OPERATION

D International, USA*1 and ATIS*2 channelsThere are 57 (58)*1 Internatonal, 58 U.S.A.*1 and 57 ATIS*2 channels. These channel groups may be specfed for the operatng area.

q Push [DIAL] to select a regular channel.w Push [Y]/[Z] to select a channel. • “DUP” appears for duplex channels.e To change the channel group, push [DIAL] for 1 sec. • Internatonal, U.S.A.*1 and ATIS*2 channels can be selected n

sequence.

*1 Avalable for the UK verson only *2 Avalable for the German verson only

4

U.S.A channels*1

International channels

ATIS channels*2

Push

for 1 sec.

Push

for 1 sec.

9

4 BASIC OPERATION

New2001

Adjusting the volume levelThe volume level can be adjusted wth [+]/[–].

Push [+]/[–] to adjust the volume level. • “VOL” ndcator starts blnkng. • There are 32 volume levels to choose. • When no key s pushed for 5 sec., the transcever returns to

normal condton.

Adjusting the squelch levelThe IC-M31 has a squelch level adjustment, even though there s no control knob for t. In order to receve sgnals properly, as well as for the scan to functon effectvely, the squelch must be adjusted to the proper level.q Push [SQL•MONI], then adjust the squelch level wth [+]/[–]. - “SQL” ndcator starts blnkng. - There are 11 squelch levels to choose from: “OP” s completely

open; “10” s tght squelch; “1” s loose squelch level. - When no key s pushed for 5 sec., the transcever returns to

normal condton.

w Push [SQL•MONI] agan to return to normal condton.

CONVENIENT!The squelch level adjustment key can be selected from [Y]/[Z] and [+]/[–] wth followng operaton.

• Whle pushng both [SQL•MONI] and [Y], turn the power ON to set [Y]/[Z] to the squelch level adjustment key.

• Whle pushng both [SQL•MONI] and [+], turn the power ON to set [+]/[–] to the squelch level adjustment key.

Blinks during squelch level adjustment.

Indicates the squelch level.

Blinks during volume level adjustment.

Indicates the volume level.

10

4BASIC OPERATION

New2001

Receiving and transmittingCAUTION: Transmttng wthout an antenna may damage the transcever.

q Push and hold [PWR] to turn power ON.w Set the volume and squelch levels. Push [SQL•MONI], and push [–] to open the squelch. Push [SQL•MONI] to stop “SQL” ndcator blnkng, then

push [+]/[–] to set the volume level. Push [SQL•MONI], and push [+]/[–] to set the squelch

level.e Push [Y]/[Z] to select the desred channel. - When recevng a sgnal, “ ” appears and audo s emtted

from the speaker. - Further adjustment of the volume may be necessary at ths

pont.r Push [H/L•LOCK] to select the output power f necessary. - “LOW” appears when low power s selected; no ndcaton when

hgh power s selected. - Choose low power to conserve battery power, choose hgh

power for longer dstance communcatons. - Some channels are for low power only.t Push and hold [PTT] to transmt, then speak nto the

mcrophone. - “ ” appears. - Channel 70 cannot be used for transmsson.y Release [PTT] to receve.

IMPORTANT: To maxmze the readablty of your trans-mtted sgnal, pause a few sec. after pushng [PTT], hold the mcrophone 5 to 10 cm from your mouth and speak nto the mcrophone at a normal voce level.

NOTE: The transcever has a power save functon to conserve the battery power. The power save functon ac-tvates automatcally when no sgnal s receved for 5 sec.

4

q Power ON

eÊSet channel

t Push to transmity Release to receive r Set output

power

w Set volumew Set the

squelch level

w Set the squelch level

Microphone

11

4 BASIC OPERATION

New2001

Call channel programmingThe call channel key s used to select the default channel, however, you can program your most often-used channel n each channel group for quck recall.

q Push [DIAL] for 1 sec. several tmes to select the desred chan-nel group (INT, USA, ATIS) to be programmed.

w Push [16•C] for 1 sec. to select the call channel.

• “CALL” and call channel number ap-pear.

e Push [16•C] agan for 3 sec. (untl a long beep changes to 2 short beeps) to enter call channel pro-grammng condton.

• Call channel number to be pro-grammed flashes.

r Push [Y]/[Z] to select the desred channel.

t Push [16•C] to program the ds-played channel as the call chan-nel.

• The call channel number stop flashng.

12

4BASIC OPERATION

New2001

Lock functionThs functon electroncally locks all keys (except for [+]/[–], [PTT], [SQL•MONI] and [H/L•LOCK]) to prevent accdental channel changes and functon access.

Push [H/L•LOCK] for 1 sec. to turn the lock functon ON and OFF.

Automatic backlightingThs functon s convenent for nghttme operaton. The auto-matc backlghtng can be actvated n SET mode. (p. 18)

Push any key except for [PTT] to turn the backlghtng ON. • The backlghtng s automatcally turned OFF after 5 sec. of n-

actvty.

Monitor functionThe montor functon releases the nose squelch mute. See p. 18 for detals of the montor swtch acton.

Push [SQL•MONI] for 1 sec. to actvate the montor func-ton.

• “ ” blnks and audo s emtted.

4

LOCK

Pushfor 1 sec.

Appears while the lock function is used.

MONI

Pushfor 1 sec.

Blinks while the monitor function is used.

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New2001

SCAN OPERATION5 Scan typesScannng s an efficent way to locate sgnals quckly over a wde frequency range. The transcever has prorty scan and normal scan.

In addton, an auto scan functon s avalable for standby convenence.

Set the tag channels (scanned channel) before scannng. Clear the tag channels whch nconvenently stop scannng, such as dgtal communcatons.

Choose prorty or normal scan n SET mode. (p. 17)

PRIORITY SCAN

Prorty scan searches through all tag channels n sequence whle montorng Channel 16. When a sgnal s detected on Channel 16, scan pauses untl the sgnal dsappears; when a sgnal s detected on a channel other than Channel 16, scan becomes dualwatch untl the sgnal dsappears.

NORMAL SCAN

Normal scan, lke prorty scan, searches through all tag channels n sequence. However, unlke prorty scan, Channel 16 s not checked unless Channel 16 s set as a tag channel.

CH 88

CH 01

CH 16

CH 02

CH 05 CH 04

CH 03

CH 01 CH 02

CH 88

CH 05 CH 04

CH 03

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5SCAN OPERATION

New2001

Setting tag channelsFor more effcent scannng, add desred channels as tag channels or clear the tag for unwanted channels. Non-tag channels wll be skpped durng scannng. Tag channels can be assgned to each channel group (INT, USA, ATIS) ndependently. (Dependng on verson)

q Select the desred channel group (INT, USA, ATIS) by pushng [DIAL] for 1 sec., f desred.

w Select the desred channel to set as a tag channel.e Push both [Y] and [Z] for 1 sec. to set the dsplayed

channel as a tag channel. • “ ” appears n the functon dsplay.r To cancel the tag channel settng, push both [Y] and [Z]

for 1 sec. • “ ” dsappears.

Clearing all tag channels in the selected channel groupWhle pushng and holdng both [Y] and [Z], turn power ON to clear all tag channels n the channel group.

Starting a scanSet the prorty scan functon, scan resume tmer and auto scan functon n advance, usng SET mode. (pgs. 17, 18)

q Select the desred channel group (INT, USA, ATIS) by pushng [DIAL] for 1 sec., f desred. (Avalable for the UK and German verson only)

w Push [SCN•DUAL] to start prorty or normal scan. • “SCAN” blnks n the functon dsplay. • “16” appears on the sub channel readout durng prorty scan. • When a sgnal s receved, scan pauses untl the sgnal ds-

appears or resumes after pausng 5 sec. accordng to scan resume tmer settng. (Channel 16 s stll montored durng pror-ty scan.)

• Push [Y]/[Z] to check the scannng tag channels, change the scannng drecton or resume the scan manually.

e To stop the scan, push [SCN•DUAL]. • “SCAN” dsappears. • Pushng [PTT], [16•C] or [DIAL] also stops the scan.

5

Scan starts.

DUAL DUAL

Push Push

to stop the scan

Receiving a signal and audio is emitted.

[Example]: Starting a normal scan.

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New2001New2001

DUALWATCH/TRI-WATCH6 DescriptionDualwatch montors Channel 16 whle you are recevng another channel; tr-watch montors Channel 16 and the call channel whle recevng another channel.

Operationq Select the desred operatng channel.w Push [SCN•DUAL] for 1 sec. to start dualwatch or tr-watch

(dependng on SET mode settng). • “DUAL” blnks durng dualwatch; “TRI” blnks durng tr-watch. • A beep tone sounds when a sgnal s receved on Channel 16. • Tr-watch becomes dualwatch when recevng a sgnal on the

call channel.e To cancel dualwatch/tr-watch, push [SCN•DUAL] agan.

DUALWATCH/TRI-WATCH SIMULATION

Dualwatch Tri-watch

Call channel

• If a sgnal s receved on Channel 16, dualwatch/tr-watch pauses on Channel 16 untl the sgnal dsappears.

• If a sgnal s receved on the call channel durng tr-watch, tr-watch becomes dualwatch untl the sgnal ds-appears.

• To transmt on the selected channel durng dualwatch/tr-watch, push and hold [PTT].

[Example]: Operatng tr-watch on INT channel 07.

Tri-watch starts.Push

for 1 sec.

Signal is received on the call channel.

Signal received on Channel 16 takes priority.

Tri-watch resumes after the signal disappears.

DUAL

16

7SET MODE

New2001

SET mode programmingSET mode s used to change the condton of 11 transcever functons: Beep tone functon, Prorty scan functon, Scan resume tmer, Auto scan functon, Dual/Tr-watch functon, montor swtch acton, Automatc backlghtng, LCD contrast selecton, Power save functon, Self check functon and Bat-tery voltage ndcator.

D SET mode operationq Turn power OFF.w Whle pushng [SQL•MONI], turn power ON to enter SET

mode. • “bp” appears.e Push [SQL•MONI] or [SQL•MONI] and [Y] to select the

desred tem, f necessary.r Push [Y]/[Z] to select the desred condton of the tem.t To ext SET mode, push [16•C].

D SET MODE ITEMS The dsplays show the default settngs, and the selected tem s dsplayed n the dotted crcle.

Auto scan

Starting item

Beep tone

Battery voltage

Scan resume timer Dual/Tri-watch

Auto backlight Power save LCD contrast

Monitor switch

Self check

Priority scan

MONI

: PushMONI

: Push and

67

17

7 SET MODE

New2001

SET mode itemsD Beep tone function “bP”You can select slent operaton by turnng the beep tones OFF, or you can have 2 types of confirmaton beeps sound at the push of a swtch. When ON s selected, a fixed beep (P) sounds, and when US s selected, the preset beeps (e.g. do, re, m) sound.• Beep tone synchronses wth the volume level.• The beeps sound durng call channel programmng even f ths

functon s turned OFF.

D Priority scan function “Pr”The transcever has 2 scan types—normal (OFF) and pror-ty (ON) scans. Normal scan searches all tag channels n the selected channel group. Prorty scan searches all tag chan-nels n sequence whle montorng Channel 16.

Push

Normal scanProrty scan (default)

D Scan resume timer “St”The scan resume tmer can be set as a pause (OFF) or tmer scan (ON). When OFF s selected, the scan pauses untl a receved sgnal dsappears. When ON s selected, the scan pauses for 5 sec. after recevng a sgnal and then resumes even f the sgnal has been receved.

Push

Scan resume tmer OFF(default)

Scan resume tmer ON

Push

Beep tone ON (default)

Beep tone OFF

User beep

18

7SET MODE

New2001

D Auto scan function “AS”The auto scan functon starts the desred scan automatcally when no sgnal s receved, and no operaton s performed for 30 sec.

D Dual/Tri-watch function “dt”Ths tem selects dual or tr-watch as desred. See p. 15 for detals.

D Monitor switch action “Sq”The montor swtch acton cuts off the squelch functon tem-porarly. Ths swtch acton contans PUSH (Pu) or HOLD (Ho) settngs as shown below.• Pu (PUSH): After pushng the [SQL•MONI] for 1 sec., the squelch

opens and emts audo. The squelch s held open whle contnuously pushng and holdng [SQL•MONI]. (default)

• Ho (HOLD): After pushng the [SQL•MONI] for 1 sec., the squelch opens and emts audo even [SQL•MONI] s released. To close the squelch, push any key.

D Automatic backlighting “bL”Ths functon s convenent for nghttme operaton. The au-tomatc backlghtng turns the backlghtng ON when any key except for [PTT] s pushed.• The backlghtng s automatcally turned OFF after 5 sec. of nactvty.

7

Push

Push settng (default) Hold settng

Push

Dualwatch functon(default)

Tr-watch functon

Push

Auto scan OFF (default) Auto scan ON

Push

Auto backlghtng ON(default)

Auto backlghtng OFF

19

7 SET MODE

New2001

D LCD contrast selection “LC”The contrast of the LCD can be turned ON (hgh contrast) and OFF (low contrast).

D Power save function “PS”The power save functon reduces current dran by deactvat-ng the recever crcut for preset ntervals. • ON : The power save functon s turned ON. The power save func-

ton wll actvate when no sgnal s receved, and no operaton s performed for 5 sec.

• OFF: The power save functon s turned OFF.

D Self check function “SC”The self check functon checks transcever condtons by t-self, and nforms you n case a problem s found. The follow-ng tems are checked after the power s turned ON, then t swtches to operaton mode.• Temperature : Outsde of –25°C to +65°C (approx.)• Connected battery voltage• Water ntruson

When error messages as shown below are dsplayed, see troubleshootng for advce. (p. 26)

Temperature error Battery voltage error Water ntruson error

Push

Self check OFF (default) Self check ON

Push

LCD contrast ON (default)

LCD contrast OFF

Push

Power save ON (default)

Power save OFF

20

7SET MODE

New2001

D Battery voltage indicator “bt”The voltage of the connected battery pack can be turned ON (dsplayed for 2 sec.) or OFF (non-dsplayed) after power s turned ON.

7

Indication Switch

Beep tone functon

Function

Prorty scan functon

Scan resume tmer

Auto scan functon

Dual/Tr-watch functon

Montor swtch acton

Automatc backlghtng

LCD contrast selecton

Power save functon

Self check functon

OFF / ON* / US

OFF / ON*

OFF* / ON

OFF* / ON

Dual* / Tr

Push* / Hold

OFF / ON*

OFF / ON*

OFF / ON*

OFF* / ON

OFF* / ON

"bP"

"Pr"

"St"

"AS"

"dt"

"Sq"

"bL"

"LC"

"PS"

"SC"

"bt"Battery voltage ndcator

SET MODE LIST

*Default settng

Battery voltage ndcaton OFF

(default)

Push

Battery voltage ndcaton ON

21

New2001

BATTERY CHARGING8 Battery charging

Please refer to the BC-162 nstructon manual when chargng the BP-252 li-ion battery pack wth the BC-162 desktop charger.

Pror to usng the transcever for the frst tme, the battery pack must be fully charged for optmum lfe and operaton.

CAUTION: To avod damage to the transcever, turn the power OFF whle chargng.

• Recommended temperature range for chargng: +10°C to +40°C• Use the specfed chargers (BC-150, BC-119N and BC-

121N). NEVER use another manufacture’s charger.• Use the suppled AC adapte for BC-150. NEVER use an-

other manufacture’s adapters.

NEVER connect DC power to the battery case when n-stallng alkalne batteres. Such a connecton wll damage the transcever.

Battery cautionsCAUTION! NEVER nsert battery pack/transcever (wth the battery pack attached) wth wet or soled nto the charger. Ths may result n corroson of the charger termnals or damage to the charger. The charger s not waterproof and water can easly get nto t.

NEVER ncnerate used battery pack. Internal battery gas may cause an exploson.

NEVER mmerse batteres n water. If the battery pack becomes wet, be sure to wpe t dry BEFORE attachng t to the transcever.

NEVER short the termnals of the battery pack. Also, cur-rent may flow nto nearby metal objects, such as a necklace, etc. Therefore, be careful when carryng wth, or placng near metal objects, carryng n handbags, etc.

If your battery pack seem to have no capacty even after beng charged, completely dscharge them by leavng the power ON overnght. Then, fully charge the battery pack agan. If the batteres stll do not retan a charge (or very lt-tle), new battery pack must be purchased.

22

8BATTERY CHARGING

New2001

8

D Charging connectionsq Attach the BC-150 to a flat surface, such as desk or

cabn, etc., f desred.w Connect the AC adapter as shown below.e Insert the battery pack wth/wthout the transcever nto

the charger. • The charge ndcator lghts green.r Charge the battery pack approx. 8 hours, dependng on

the remanng power condton.

DO NOT charge BP-224 more than 12 hours. Oth-erwse, BP-224 wll be damaged. BP-224 must be charged for 8–12 hours only.

Optional battery caseWhen usng a battery case attached to the transcever, n-stall 6 × AA(R6) sze alkalne batteres as llustrated below.

q Remove the battery case from the transcever.w Install 6 × AA(R6) sze alkalne batteres. • Be sure to observe the correct polarty.

CAUTION:• When nstallng batteres, make sure they are all the

same brand, type and capacty. Also, do not mx new and old batteres together.

• Keep battery contacts clean. It’s a good dea to clean battery termnals once a week.

BC-150

Suppled screws

Battery packTransceiver

Charge ndcator lghts green when the battery pack (wth/wthout the transcever) s nserted.

Turn power OFF

AC adapter(A dfferent type, or no AC adapter s suppled, dependng on the verson.)

23

8 BATTERY CHARGING

New2001

Optional battery chargersD AD-103 installationq Install the AD-103 desktop charger adapter nto the

holder space of the BC-119N/121N.w Connect the plugs of the BC-119N/121N to the AD-103

desktop charger adapter wth the connector, then nstall the adapter nto the charger wth the suppled screws.

Screws suppled wth the charger adapterDesktop charger adapter

Connector

Plug

Not used

24

8BATTERY CHARGING

New2001

D Rapid charging with the BC-119N+AD-103The optonal BC-119N provdes rapd chargng of battery packs. The followng are addtonally requred.• AD-103 charger adapter• An AC adapter (not suppled wth BC-119N dependng on

verson) or the DC cable (OPC-515L/CP-17L)

D Rapid charging with the BC-121N+AD-103The optonal BC-121N allows up to 6 battery packs to be charged smultaneously. The followng are addtonally re-qured.• Sx AD-103 charger adapters• An AC adapter (BC-157) or the DC power cable (OPC-656)

8

AD-103 charger adapter s nstalled n BC-119N.

OPC-515L (for 13.8 V power source) or CP-17L (for 12 V cgarette lghter socket) can be used nstead of the AC adapter.

AC adapter(A dfferent type, or no AC adapter s suppled, dependng on the verson.)

Battery pack Transceiver

Turn power OFF

DC power cable (OPC-656)(Connect wth the DC power supply; 13.8 V/at least 7 A)

AC adapter(purchased separately)

Battery pack Transceiver

Turn power OFF

AD-103 charger adapters are nstal-led n each slot.

25

New2001

OPTIONAL SWIVEL BELT CLIP9 MB-87 contents

Qty.q Belt clp .......................................................................... 1w Base clp ........................................................................ 1

To attachq Slde the base clp nto the plastc loop on the back of the

transcever as llustrated below.

w Clp the belt clp to a part of your belt and nsert the trans-cever nto the belt clp untl the base clp fttng nto the groove.

e Once the transcever s locked n place, t swvels as llus-trated below.

To detach Turn the transcever upsde down n the drecton of the

arrow and pull out from the belt clp.

CAUTION:HOLD THE TRANSCEIVER TIGHTLY, WHEN HANGING OR DETACHING THE TRANSCEIVER FROM THE BELT CLIPOtherwse the transcever may not be attached to the belt clp or swvelled properly f the transcever s accdentally dropped and the base clp s scratched or damaged.

26

New2001

9

10TROUBLESHOOTING

PROBLEM POSSIBLE CAUSE SOLUTION REF

No sound from speaker. • Squelch level s too deep.• Volume level s too low.• Speaker has been exposed to water.

p. 9p. 9

—

• Set squelch to the threshold pont.• Push [+]/[–] to set a sutable level.• Dran water from the speaker.

The transcever does not turn ON.

• The battery s exhausted.• Bad connecton to the battery pack.

p. 21p. 3

• Recharge the battery pack.• Check the connecton to the transcever.

Transmttng s mposs-ble, or hgh power can not be selected.

• Some channels are for low power or re-ceve only.

• The battery s exhausted.• The battery over charged.• The output power s set to low.

pgs. 7, 8, 27p. 21

—p. 10

• Change channels.

• Recharge the battery pack.• Verfy the battery voltage s correct.• Push [H/L•LOCK] to select hgh power.

The dsplayed channel cannot be changed.

• Lock functon s actvated. • Push [H/L•LOCK] for 1 sec. to cancel the functon.

p. 12

Scan does not start. • “TAG” channels are not programmed. • Set the desred channels as “TAG” channels. p. 14

No beeps. • Beep tones are turned OFF. • Set the beep tones to ON (Fx Beep/User Beep) n SET mode.

p. 17

Self check error.(Temperature)

• The temperature s outsde of –25°C to +65°C (approx).

• Leave the transcever at room temperature for a whle. Turn the power ON to check f the nternal temperature has returned to normal.

Self check error.(Battery voltage)

• The connected battery pack’s voltage s more than 11 V.

• Verfy the battery voltage s correct.

—

—

Self check error.(Water ntruson)

• Water has entered the transcever. • Have the transcever checked at your local dstrbutor or dealer to see whether the transcever works properly or not.

—

10

27

New2001New2001

CHANNEL LIST11 International channels

CHFrequency (MHz)

CHFrequency (MHz)

CHFrequency (MHz)

CHFrequency (MHz)

CHFrequency (MHz)

CHFrequency (MHz)

Transmt Receve Transmt Receve Transmt Receve Transmt Receve Transmt Receve Transmt Receve

01 156.050 160.650 11 156.550 156.550 21 157.050 161.650

62 156.125 160.725 72 156.625 156.625 82 157.125 161.72502 156.100 160.700 12 156.600 156.600 22 157.100 161.700

63 156.175 160.775 73 156.675 156.675 83 157.175 161.77503 156.150 160.750 13 156.650 156.650 23 157.150 161.750

64 156.225 160.825 74 156.725 156.725 84 157.225

Rx only

Rx only

161.82504 156.200 160.800 14 156.700 156.700 24 157.200 161.800

65 156.275 160.875 75 156.775 156.775 85 157.275 161.87505 156.250 160.850 15 156.750 156.750 25 157.250 161.850

66 156.325 160.925 76 156.825 156.825 86 157.325 161.92506 156.300 156.300 16 156.800 156.800 26 157.300 161.900

67 156.375 156.375 77 156.875 156.875 87 157.375 157.37507 156.350 160.950 17 156.850 156.850 27 157.350 161.950

68 156.425 156.425 78 156.925 161.525 88 157.425 157.42508 156.400 156.400 18 156.900 161.500 28 157.400 162.000

69 156.475 156.475 79 156.975 161.57509 156.450 156.450 19 156.950 161.550 37A 157.850 157.850

60 156.025 160.625 70 156.525 80 157.025 161.62510 156.500 156.500 20 157.000 161.600

61 156.075 160.675

USA channels (for U.K. verson only)

CHFrequency (MHz)

CHFrequency (MHz)

CHFrequency (MHz)

CHFrequency (MHz)

CHFrequency (MHz)

CHFrequency (MHz)

Transmt Receve Transmt Receve Transmt Receve Transmt Receve Transmt Receve Transmt Receve

01A 156.050 156.050 12 156.600 156.600 22A 157.100 157.100 64A 156.225 156.225 77 156.875 156.875 86 157.325 161.925

-- - - - - - - 13 156.650 156.650 23A 157.150 157.150 65A 156.275 156.275 78A 156.925 156.925 86A 157.325 157.325

03A 156.150 156.150 14 156.700 156.700 24 157.200 161.800 66A 156.325 156.325 79A 156.975 156.975 87 157.375 161.975

-- - - - - - - 15 156.750 156.750 25 157.250 161.850 67 156.375 156.375 80A 157.025 157.025 87A 157.375 157.375

05A 156.250 156.250 16 156.800 156.800 26 157.300 161.900 68 156.425 156.425 81A 157.075 157.075 88 157.425 162.025

06 156.300 156.300 17 156.850 156.850 27 157.350 161.950 69 156.475 156.475 82A 157.125 157.125 88A 157.425 157.425

07A 156.350 156.350 18A 156.900 156.900 28 157.400 162.000 70 156.525 83A 157.175 157.175

08 156.400 156.400 19A 156.950 156.950 37A 157.850 157.850 71 156.575 156.575 84 157.225 161.825

09 156.450 156.450 20 157.000 161.600 61A 156.075 156.075 72 156.625 156.625 84A 157.225 157.225

10 156.500 156.500 20A 157.000 157.000 -- - - - - - - 73 156.675 156.675 85 157.275 161.875

11 156.550 156.550 21A 157.050 157.050 63A 156.175 156.175 74 156.725 156.725 85A 157.275 157.275

Low power only. Avalable for UK verson only.

81 157.075 161.67571 156.575 156.575

New2001

28

12SPECIFICATIONS

11

D GENERAL• Frequency coverage : Transmt 156.000–161.450 MHz Receve 156.000–163.425 MHz• Mode : FM (16K0G3E)• Channel spacng : 25 kHz• Power supply requrement : BP-223, BP-224, and BP-252 only• Current dran (at 7.5 V DC) : TX at 5 W 1.5 A typcal TX at 1 W 0.7 A typcal Max. audo 200 mA typcal Power save 20 mA typcal• Frequency stablty : ±1.5 kHz (–15°C to +55°C)• Useable temperature range : –15°C to +55°C• Dmensons : 61(W) × 135(H) × 41(D) mm (projectons not ncluded)• Weght (approx.; wth BP-224) : 360 g

D TRANSMITTER• Output power (at 7.5 V DC) : 5 W (H), 1 W (Low) or

1 W (H), 0.5 W (Low) <German ver.>• Modulaton system : Varable reactance frequency • Max. frequency devaton : ±5 kHz• Adjacent channel power : 70 dB• Spurous emssons : Less than 0.25 µW

D RECEIVER• Receve system : Double-converson superhetero-

dyne• Senstvty (20 dB SINAD) : –2 dBµ EMF typcal• Squelch senstvty : 0 dBµ EMF typcal (at threshold)• Intermodulaton rejecton rato : 68 dB• Spurous response rejecton rato : 70 dB• Adjacent channel selectvty : 70 dB• Audo output power : 0.2 W at 10% dstorton wth an

8 Ω load

All stated specifications are subject to change without notice or obligationSpecifications are measured in accordance with EN 301-178

12

29

New2001New2001

OPTIONS13D BATTERY CASE AND PACK• BP-223 battery case

Battery case for 6 × AA (R6) alkalne cells.

• BP-224 N-Cd battery pack

Voltage : 7.2 V Capacty : 750 mAh

• BP-252 li-ion battery pack

Voltage : 7.4 V Capacty : 950 mAh (mnmum) / 980 mAh (typcal)

D CHARGERS• BC-119N desktop charger + AD-103 charger adapter

+ BC-145 ac adapter

For rapd chargng of battery packs. An AC adapter s suppled wth the charger dependng on versons.

Chargng tme: approx. 1.5 to 2 hours

• BC-121N multi-charger + AD-103 charger adapter (6 pcs.) + BC-157 ac adapter

For rapd chargng of up to 6 battery packs (sx AD-103’s are re-qured) smultaneously. An AC adapter should be purchased sepa-rately.

Chargng tme: approx. 1.5 to 2 hours

• BC-150 desktop charger + BC-147 ac adapter

Used for regular chargng of battery pack. An AC adapter s sup-pled wth the charger dependng on versons.

Chargng tme: approx. 8 hours

• BC-162 desktop charger + BC-145 ac adapter

Used for rapd chargng of battery pack. Chargng tme: approx. 1 to 2 hours.

D BELT CLIPS• MB-68 belt clip

• MB-74N belt clip

Exclusve allgator-type belt clp.

• MB-87 swivel belt clip

Belt clp for swvel type.

D OTHER OPTIONS• CP-17L cigarette lighter cable (For BC-119N) Allows to charge the battery pack through a 12 V cgarette lghter

socket.

• OPC-515L (for BC-119N)/OPC-656 (for BC-121N) dc power cables

Allows to charge the battery pack usng 13.8 V power source n-stead of the AC adapter.

Icom optonal equpment s desgned for optmal performance when used wth ths transcever. We are not responsble for the transcever beng damaged or any accdent caused when usng non-Icom op-tonal equpment.

Some optons may not avalable n some countres. Please ask your dealer for detals.

30

14DOC

New2001

CE versons of the IC-M31 whch dsplay the “CE” symbol on the seral number seal, comply wth the essental requrements of the Euro-pean Rado and Telecommuncaton Termnal Drectve 1999/5/EC.

Ths warnng symbol ndcates that ths equp-ment operates n non-harmonsed frequency bands and/or may be subject to lcensng cond-tons n the country of use. Be sure to check that you have the correct verson of ths rado or the correct programmng of ths rado, to comply wth natonal lcensng requrement.

13

DECLARATIONOF CONFORMITY

We Icom Inc. Japan1-1-32, Kamiminami, Hirano-kuOsaka 547-0003, Japan

Kind of equipment: VHF MARINE TRANSCEIVER

Type-designation: iC- m31

Signature

Authorized representative name

Place and date of issue

Düsseldorf 29th Aug. 2003

Declare on our sole responsibility that this equipment complies with theessential requirements of the Radio and Telecommunications Terminal Equipment Directive, 1999/5/EC, and that any applicable Essential TestSuite measurements have been performed.

Version (where applicable):

0560

This compliance is based on conformity with the following harmonised standards, specifications or documents:i) EN 301 178-2 v1.1.1 (2000-8)ii) EN 60945 1997iii) EN 60950 August 1992, A11 1997 iv) EN 300 698-2 v1.1.1 (2000-8) v) vi) vii)

14

1-1-32 Kammnam, Hrano-ku, Osaka 547-0003, Japan

A-6298D-1EU-rPrnted n Japan© 2003–2009 Icom Inc.

New2001

< Intended Country of Use > GER AUT GBR IRL NOR

FRA NED BEL LUX

ESP POR ITA GRE

SWE DEN FIN SUI