Icom IC-M503 Marine Radio Instruction manual

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INSTRUCTION MANUAL

VHF MARINE TRANSCEIVER

iM503

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IN CASE OF EMERGENCY

If your vessel requires assistance, contact other vessels and the Coast Guard by sending a distress call on Channel 16.

USING CHANNEL 16

DISTRESS CALL PROCEDURE

1. “MAYDAY MAYDAY MAYDAY.”

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

3. Your call sign or other indication of the vessel (AND 9-digit DSC ID if you have one).

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

5. The nature of the distress and assistance required.

6. Any other information which might facilitate the rescue.

Or, transmit your distress call using digital selective calling on

Channel 70 (the optional DS-100 (#02) must be installed).

USING DIGITAL SELECTIVE CALLING

(Ch 70)

(DS-100 (#02) DSC CONTROLLER is required)

DISTRESS CALL PROCEDURE

1. Push and hold [DISTRESS] on the DS-100 for 5 sec. until you hear 5 short beeps change to one long beep.

2. Wait for an acknowledgment from a coast station.

• Channel 16 is automatically selected.

3. Push and hold [PTT], then transmit the appropriate information as at left.

Versions of the IC-M503 which display the “CE” symbol on the serial number seal, comply with the essential requirements of the

European Radio and Telecommunication Terminal Directive

1999/5/EC.

This warning symbol indicates that this equipment operates in non-harmonised frequency bands and/or may be subject to licensing conditions in the country of use. Be sure to check that you have the correct version of this radio or the correct programming of this radio, to comply with national licensing requirements.

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TABLE OF CONTENTS

IN CASE OF EMERGENCY ........................i

TABLE OF CONTENTS ..............................ii

IMPORTANT ..............................................iii

CAUTIONS.................................................iii

1 OPERATING RULES .......................... 1

2 PANEL DESCRIPTION .................. 2 – 5

■ Panel description ............................. 2

■ Function display ............................... 4

■ Microphone ...................................... 5

3 BASIC OPERATION .................... 6 – 10

■ Channel selection ............................ 6

■ Receiving and transmitting .............. 8

■ Call channel programming ............... 9

■ Channel names ................................ 9

■ Optional voice scrambler operation .. 10

4 DUALWATCH/TRI-WATCH ............... 11

■ Description ..................................... 11

■ Operation ....................................... 11

5 SCAN OPERATIONS ................. 12 – 13

■ Scan types ..................................... 12

■ Setting tag channels ...................... 13

■ Starting a scan ............................... 13

6 SET MODE ................................. 14 – 16

■ Set mode programming ................. 14

■ Set mode items .............................. 15

7 INTERCOM OPERATION ................. 17

■ Intercom operation ......................... 17

8 CONNECTIONS AND

MAINTENANCE ......................... 18 – 24

■ Unpacking ...................................... 18

■ Antenna ......................................... 18

■ Fuse replacement .......................... 18

■ Cleaning ......................................... 18

■ Connections ................................... 19

■ Microphone hanger ........................ 20

■ Mounting the transceiver ............... 21

■ Optional unit installation ................. 23

■ Dimensions ..................................... 24

9 TROUBLESHOOTING ...................... 25

10 CHANNEL LIST ................................ 26

11 SPECIFICATIONS AND OPTIONS ... 27

■ Specifications ................................. 27

■ Options .......................................... 27

12 HM-134 REMOTE-CONTROL

MICROPHONE ........................... 28-38

■ Panel description ........................... 28

■ Function display ............................. 30

■ Channel selection .......................... 32

■ Receiving and transmitting ............ 33

■ Lock functions ................................ 34

■ Display backlighting ....................... 34

■ Monitor function ............................. 34

■ Call channel programming ............. 35

■ Optional voice scrambler operation......................................... 35

■ Starting a scan ............................... 36

■ Setting tag channels ...................... 36

■ Dualwatch/Tri-watch operation ...... 36

■ Set mode programming ................. 37

■ Intercom operation ......................... 38

■ Channel names .............................. 38

13 HM-134 CONNECTIONS AND

INSTALLATION ........................... 39-41

■ HM-134 supplied accessories .........39

■ Installation .......................................39

MB-75 TEMPLATE

INSTALLATION NOTES ii

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IMPORTANT

READ ALL INSTRUCTIONS

carefully and completely before using the transceiver.

SAVE THIS INSTRUCTION MANUAL —

This instruction manual contains important operating instructions for the IC-M503.

CAUTIONS

RWARNING! NEVER connect the transceiver to an AC outlet. This may pose a fire hazard or result in an electric shock.

NEVER

connect the transceiver to a power source of more than 15.6 V DC or using reverse polarity. This will ruin the transceiver.

NEVER

cut the DC power cable between the DC plug and fuse holder. If an incorrect connection is made after cutting, the transceiver may be damaged.

NEVER

place the transceiver where normal operation of the vessel may be hindered or where it could cause bodily injury.

KEEP

the transceiver at least 1 m away from the ship’s navigation compass.

DO NOT

use or place the transceiver in areas with temperatures below –20°C or above +60°C or, in areas subject to direct sunlight, such as the cockpit.

AVOID

the use of chemical agents such as benzine or alcohol when cleaning, as they may damage the transceiver surfaces.

BE CAREFUL!

The transceiver rear panel will become hot when operating continuously for long periods.

BE CAREFUL!

The optional HM-134 remote-control microphone’s rear panel will become hot when monitoring continuously for long periods.

Place the transceiver in a secure place to avoid inadvertent use by children.

After exposure to salt water, clean the transceiver thoroughly with fresh water to avoid corrosion.

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• Read all rules and regulations pertaining to priorities and keep an up-to-date copy handy. Safety and distress calls take priority over all others.

• You must monitor Channel 16 when you are not operating on another channel.

• False or fraudulent distress signals are prohibited and punishable by law.

• Information overheard but not intended for you cannot lawfully be used in any way.

• Indecent or profane language is prohibited.

OPERATING RULES

1

(2) OPERATOR’S LICENSE

A Restricted Radiotelephone Operator Permit is the license most often held by small ship radio operators when a radio is not required for safety purposes.

The Restricted Radiotelephone Operator Permit must be posted or kept with the operator. Only a licensed radio operator may operate a transceiver.

However, non-licensed individuals may talk over a transceiver if a licensed operator starts, supervises, ends the call and makes the necessary log entries.

Keep a copy of the current government rules and regulations handy.

(1) SHIP STATION LICENSE

You must have a current radio station license before using the transceiver. It is unlawful to operate a ship station which is not licensed.

Inquire through your dealer or the appropriate government agency for a Ship-Radiotelephone license application. This government-issued license states the call sign which is your ship’s identification for radio purposes.

1

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2

PANEL DESCRIPTION

■ Panel description

!1

!0

VHF MARINE iM503 o i

Function display

Speaker q

POWER

VOL

16

DUAL

WATER RESISTANT

SCAN

TAG

DIAL

HI/LO

SQL

CALL

DIMMER

2 w q POWER SWITCH [POWER]

Push to toggle the transceiver power ON and OFF.

w VOLUME CONTROL [VOL]

Adjusts the audio level. (p. 8) e SQUELCH CONTROL [SQL]

Sets the squelch threshold level. (p. 8) e r t y u r TRANSMIT POWER SWITCH [HI/LO]

➥Push to Toggle high and low power . (p. 8)

• Some channels are set to low power only.

➥While pushing and holding this switch, other switches perform secondary functions.

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PANEL DESCRIPTION

2 t CHANNEL SELECTOR [CHANNEL]

Rotate [CHANNEL] to select the operating channels, set mode contents, etc. (p. 8) y DIMMER SWITCH [DIMMER]

➥Push to select one of 8 backlighting (LCD and switches) levels.

➥Push and hold for 1 sec. to turn the intercom mode ON.

u CALL CHANNEL SWITCH [CALL]

➥Push to select the call channel. (p. 6)

➥Push and hold for 3 sec. to enter call channel programming condition. (p. 9)

➥While pushing and holding [HI/LO], enters memory name programming condition. (p. 9) i CHANNEL 16 SWITCH [16]

➥Push to select Channel 16. (p. 6)

➥While turning power ON, push to enter initial set mode.

(p. 14) o DIAL SWITCH [DIAL]

➥Push to exit from Channel 16 or call channel.

(p. 6)

➥While pushing and holding [HI/LO], push to select channel group. (pgs. 6, 7)

• The “EUR” version has International channels only and this function is not available.

!0 SCAN SWITCH [SCAN/TAG] (p. 13)

➥When tag channels are programmed, starts and stops normal or priority scan.

➥Push and hold [SCAN/TAG] for 1 sec. to set the displayed channel as a tag (scanned) channel.

➥While pushing and holding [HI/LO], push and hold for 3 sec. to clear all tag channels.

!1 DUALWATCH/TRI-WATCH SWITCH [DUAL] (p. 11)

➥Push to start dualwatch or tri-watch.

➥When dualwatch/tri-watch is activated, push to stop them.

3

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4

2

PANEL DESCRIPTION

■ Function display

q w e r

BUSY

o i

INT

25W CALL

TAG SC DUP

CALLING

t y u q BUSY/TRANSMIT INDICATOR (p. 8)

➥“BUSY” appears when receiving a signal or when the squelch opens.

➥“TX” appears while transmitting.

w POWER INDICATOR (p. 8)

➥“25W” appears when high power is selected.

➥“1W” appears when low power is selected.

e TAG CHANNEL INDICATOR (p. 13)

Appears when a tag channel is selected.

r CHANNEL NAME INDICATOR

➥Channel comment appears if programmed. (p. 9)

➥“Low Battery” appears when the battery voltage drops to approx. 10 V DC or below.

➥“DUAL” appears during dualwatch; “TRI” appears during tri-watch. (p. 11)

➥“WAIT” appears in the IC-M503 display while transmitting via the HM-134 remote-control microphone.

• In the above case, the connected HM-134 has priority.

➥“LSTN” appears in the IC-M503 display when pushing the PTT switch on the HM-134, while the intercom function is activated.

t SCRAMBLER INDICATOR (p. 10)

Appears when the optional voice scrambler is activated.

y DUPLEX INDICATOR

Appears when a duplex channel is selected.

u CHANNEL NUMBER READOUT

➥Indicates the selected operating channel number. “A” appears when a simplex channel is selected. (p. 6)

➥In set mode, indicates the selected condition. (pgs.

15,16) i CHANNEL GROUP INDICATOR (p. 6)

Indicates whether an International, U.S.A., Holland, DSC or ATIS channel is selected.

• Available channel groups depend on version.

o CALL CHANNEL INDICATOR (pgs. 6, 9)

Appears when a call channel is selected.

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■ Microphone

q w

Speaker

Microphone e q PTT SWITCH [PTT]

Push and hold to transmit; release to receive. (p. 8)

Push either switch to change the operating memory channel, set mode contents, etc. (p. 8) e TRANSMIT POWER SWITCH [HI/LO]

➥Same as the [HI/LO] switch on the front panel.

➥When pushed at power ON, toggles the [Y]/[Z] and

[HI/LO] switch functions ON and OFF.

PANEL DESCRIPTION

2

5

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6

3

BASIC OPERATION

■ Channel selection

Channel 16 is the distress and safety channel. It is used for establishing initial contact with another station and for emergency communications. Channel 16 is monitored during both dualwatch and tri-watch. While standing by, you must monitor

Channel 16.

➥Push [16] to select Channel 16.

• Output power turns to “25W” automatically, whenever Channel

16 is selected. For example, when selecting Channel 16 via the dial, a scan stops at Channel 16 or [16•C] on the HM-134 is pushed, etc.

➥Push [DIAL] to return to the condition before selecting Channel 16, or rotate [CHANNEL] to select operating channel.

• Output power returns to the previous output power automatically.

INT

Push 16

25W

TAG

CALLING

Each regular channel group has a separate leisure-use call channel. The call channel is monitored during tri-watch. The call channels can be programmed (p. 9) and are used to store your most often used channels in each channel group for quick recall.

➥Push [CALL] to select the call channel of the selected channel group.

• “CALL” and call channel number appear.

➥Push [DIAL] to return to the condition before selecting call channel , or rotate [CHANNEL] to select operating channel.

Push CALL

25W

TAG

CALLING

INT

CALL

There are 57 International channels for the IC-M503.

q Push [DIAL] to select a regular channel.

w While pushing and holding [HI/LO], push [DIAL]to change the channel group, if necessary.

• “INT” appears when International channels are selected.

e Rotate the channel selector to select a channel.

• “DUP” appears for duplex channels.

25W

TAG

INTL

INT

DUP

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BASIC OPERATION

3

ï (U.K. version only)

For the U.K. versions, there are 58 U.S.A. channels in addition to 57 International channels.

q Push [DIAL] to select a regular channel.

w While pushing and holding [HI/LO], push [DIAL] to change the channel group.

• International and U.S.A. channels can be selected in sequence.

e Rotate the channel selector to select a channel.

• Channels are memorized separately for each channel group.

USA

25W

TAG

CCG

ï

(Holland version only)

For Holland versions, there are 59 Holland channels in addition to 57 International channels.

q Push [DIAL] to select a regular channel.

w While pushing and holding [HI/LO], push [DIAL] to change the channel group.

• International and Holland channels can be selected in sequence.

e Rotate the channel selector to select a channel.

• Channels are memorized separately for each channel group.

1W

INTL

HOLLAND

DUP

ï

(FRG version only)

For the FRG versions, there are 57 ATIS and 57 DSC channels in addition to 57 International channels.

q Push [DIAL] to select a regular channel.

w While pushing and holding [HI/LO], push [DIAL] to change the channel group.

• International, ATIS and DSC channels can be selected in sequence.

e Rotate the channel selector to select a channel.

• Channels are memorized separately for each channel group.

ATIS

25W

TAG

INTL

DUP

7

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8

3

BASIC OPERATION

■ Receiving and transmitting

CAUTION:

Transmitting without an antenna may damage the transceiver.

q Push [POWER] to turn power ON.

w Set the audio and squelch levels.

➥Rotate [SQL] fully counterclockwise in advance.

➥Rotate [VOL] to adjust the audio output level.

➥Rotate [SQL] clockwise until the noise disappears.

e While pushing and holding [HI/LO], push [DIAL] to change the channel group. (p. 6)

• The European version has International channels only.

r Rotate the channel selector or push [Y]/[Z] on the microphone to select the desired channel.

• When receiving a signal, “BUSY” appears and audio is emitted from the speaker.

• Further adjustment of [VOL] may be necessary at this point.

• Use the optional voice scrambler function for privacy. (p. 10) t Push [HI/LO] to select the output power if necessary.

• “25W” or “1W” appears when high or low power is selected, respectively.

• Choose low power to conserve power, choose high power for longer distance communications.

• Some channels are for low power only.

y Push and hold [PTT] to transmit, then speak into the microphone.

• “TX” appears.

• Channel 70 cannot be used for transmission (for GMDSS use).

u Release [PTT] to receive.

IMPORTANT: To maximize the readability of your transmitted signal, pause a few sec. after pushing [PTT], hold the microphone 2 to 5 cm from your mouth and speak at a normal voice level.

q t e

VHF MARINE iM503

POWER

VOL

16

DUAL

WATER RESISTANT

SCAN

TAG

DIAL

HI/LO

SQL

CALL

DIMMER y u w r r t

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■ Call channel programming

The call channel switch can be programmed to your most often-used channels in each channel group for quick recall.

q While pushing and holding [HI/LO], push [DIAL] one or more times to select the desired channel group (International, U.S.A., Holland, ATIS, DSC) to be programmed.

w Push and hold [CALL] for 3 sec. to enter the call channel programming condition.

• Channel number starts flashing.

25W

TAG

CALLING

INT

CALL e Rotate the channel selector to select the desired channel.

25W

TAG

INTL

INT

CALL

DUP r Push [CALL] to program the displayed channel as the call channel.

• Push [DIAL] to cancel the programming.

• The channel number stops flashing.

BASIC OPERATION

3

■ Channel names

Memory channels can be tagged with alphanumeric names of up to 10 characters each.

Capital letters, small letters, numerals, some symbols (! " # $

% & ' ( ) ✱ + , – . ⁄) and spaces can be used.

q Select the desired memory channel.

• Cancel dual watch, tri-watch or scan in advance.

w While pushing and holding [HI/LO], push [CALL] to edit the memory channel name.

• A cursor appears and blinks.

25W

TAG

äLEASURE

INT e Select the desired character by rotating the channel selector or by pushing [Y]/[Z] on the microphone.

• Push and hold [SCAN] or [DIAL] for cursor movement.

r Push [CALL] to input and set the name.

• The cursor disappears.

t Repeat steps q to r to program another memory channel name, if desired.

9

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10

3

BASIC OPERATION

■ Optional voice scrambler operation

The optional voice scrambler provides private communications. In order to receive or send scrambled transmissions you must first activate the scrambler function. To activate the function, an optional UT-98 or UT-112 is necessary. See p. 16 for selecting the unit. Ask your dealer for details.

q Select an operating channel other than Channel 16 and

70.

w While pushing and holding [HI/LO], push [DIMMER] to toggle an optional scrambler function ON or OFF.

• “SC” appears.

e To turn the scrambler function OFF, repeat step w.

• “SC” disappears.

There are 128 or 32 codes (0 to 127 or 1 to 32) available for programming. In order to understand one another, all transceivers in your group must have the same scramble code.

This function may not be available depending on dealer setting.

q Turn power OFF.

w While pushing and holding [16], turn power ON to enter set mode.

e After the display appears, release [16].

r Push [16] one or more times to select the scrambler code item.

• “Scrambler code” appears.

t Rotate the channel selector to select the desired scrambler code.

y Turn power OFF, then ON again to exit set mode.

[Example]: Programming scrambler code 127.

16 + POWER

Enter set mode

Set mode

Beep

Set mode

16

Push one or more times.

Set mode

Scrambler code

Scrambler code item

Select code

Set mode

Scrambler code

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■ Description

Dualwatch monitors Channel 16 while you are receiving another channel; tri-watch monitors Channel 16 and the call channel while receiving another channel.

DUALWATCH/TRI-WATCH SIMULATION

Dualwatch

Call channel

Tri-watch

• If a signal is received on Channel 16, dualwatch/tri-watch pauses on Channel 16 until the signal disappears.

• If a signal is received on the call channel during tri-watch, triwatch becomes dualwatch until the signal disappears.

• To transmit on the selected channel during dualwatch/tri-watch, push and hold [PTT].

DUALWATCH/TRI-WATCH

4

■ Operation

q Select the desired operating channel.

w Select dualwatch or tri-watch in set mode. (p. 15) e Push [DUAL] to start dualwatch or tri-watch.

• “DUAL” appears during dualwatch; “TRI” appears during triwatch.

• Beep tone sounds when a signal is received on Channel 16.

• Tri-watch becomes dualwatch when receiving a signal on the call channel.

r To cancel dualwatch/tri-watch, push [DUAL] again.

[Example]: Operating tri-watch on INT Channel 25.

INT

Tri-watch starts.

25W

TAG

TRI

DUP

16 

BUSY

25W

TAG

CALLING

INT

CALL

16 

Signal is received on call channel.

BUSY

25W

TAG

CALLING

INT

DUP

16 

25W

TAG

TRI

INT

DUP

16 

Signal received on

Channel 16 takes priority.

Tri-watch resumes after the signal disappears.

11

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12

5

SCAN OPERATIONS

■ Scan types

Scanning is an efficient way to locate signals quickly over a wide frequency range. The transceiver has priority scan and normal scan.

PRIORITY SCAN

CH 01 CH 02

Set the tag channels (scanned channel) before scanning.

Clear the tag channels which inconveniently stop scanning, such as those for digital communication use.

Choose priority scan or normal scan in set mode in advance. (p. 15)

NORMAL SCAN

CH 01 CH 02

CH 06 CH 06 CH 16 CH 03

CH 05 CH 04

Priority scan searches through all tag channels in sequence while monitoring Channel 16. When a signal is detected on Channel 16, scan pauses until the signal disappears; when a signal is detected on a channel other than

Channel 16, scan becomes dualwatch until the signal disappears.

CH 03

CH 05 CH 04

Normal scan, like priority scan, searches through all tag channels in sequence. However, unlike priority scan, Channel 16 is not checked unless Channel 16 is set as a tag channel.

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SCAN OPERATION

5

■ Setting tag channels

For more efficient scanning, add desired channels as tag channels or clear tag channels that are unwanted channels.

Channels set as non-tag channels will be skipped during scanning. Tag channels can be assigned to each channel group (International, U.S.A., Holland, DSC, ATIS) independently.

for 3 sec. to clear all tag channels in the channel group.

■ Starting a scan

Set scan type (priority or normal scan) and scan resume timer in advance using set mode. (p. 15) q While pushing and holding [HI/LO], push [DIAL] one or more times to select the desired channel group, if desired.

w Select the desired channel to set as a tag channel.

e Push and hold [SCAN/TAG] for 1 sec. to set the displayed channel as a tag channel.

• “TAG” appears in the function display.

r To cancel the tag channel setting, repeat e.

• “TAG” disappears.

• Clearing all tag channels in the selected channel group

➥While pushing and holding [HI/LO], push and hold [DIAL]

[Example]: Starting a normal scan.

25W

TAG

INTL

INT

DUP

Push

SCAN

TAG

INT

25W

TAG DUP

Normal scan q Set tag channels as described at left.

w While pushing and holding [HI/LO], push [DIAL] one or more times to select the desired channel group, if desired.

e Push [SCAN] to start priority or normal scan.

• “Pri scan 16” or “Normal scan” appears in the function display.

• When a signal is detected, scan pauses until the signal disappears or resumes after pausing 5 sec. according to set mode setting. (Channel 16 is still monitored during priority scan.)

• Rotate the channel selector to check the scanning tag channels, to change the scanning direction or resume the scan manually.

• “16” flashes and a beep tone sounds when a signal is received on Channel 16 during priority scan.

r To stop the scan, push [SCAN].

• “Pri scan” or “Normal scan” disappears.

Scan starts.

BUSY

25W

INT

TAG DUP

Normal scan

When a signal is received

13

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14

6

SET MODE

■ Set mode programming

Set mode is used to change the conditions of the transceiver’s functions: scan mode (normal or priority), scan resume timer, dualwatch/tri-watch selection, beep tone function

(transceiver or HM-134), internal speaker (transceiver or HM-

134), LCD contrast (transceiver or HM-134), scrambler code, scrambler type and ATIS check.

• Available functions may differ depending on dealer setting.

• The optional HM-134 has it’s own settings for the beep tone, internal speaker and LCD contrast.

q Turn power OFF.

w While pushing and holding [16], turn power ON to enter set mode.

e After the display appears, release [16].

r Push [16] to select the desired item, if necessary.

t Rotate the channel selector to select the desired condition of the item.

y Turn power OFF, then ON again to exit set mode.

• SET MODE CONSTRUCTION

ATIS check

ATIS check

Scrambler type

Scrambler type

Scan mode

Scan mode

Scan resume timer

Scan timer

Push 16

Scrambler code

Scrambler code

LCD contrast

LCD contrast

Dual/tri watch

DUAL/TRI

Beep tone

Beep

Internal speaker

Internal speaker

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SET MODE

6

■ Set mode items

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

Set mode

Scan mode

Priority scan (default) Normal scan

This item sets the [DUAL] switch function as dual watch or triwatch.

See the section ‘Dual watch/Tri-watch’ for details.

Set mode

DUAL/TRI

Dual watch (default) Tri-watch

The scan resume timer can be selected as a pause (OFF) or timer scan (ON). When OFF is selected, the scan pauses until the signal disappears. When ON is selected, the scan pauses 5 sec. and resumes even if a signal is being received on channels, except for Channel 16.

Set mode

Scan timer

Scan timer ON (default) Scan timer OFF

You can select silent operation by turning beep tones OFF or you can have confirmation beeps sound at the push of a switch by turning beep* tones ON.

Set mode

Beep

Beep tone ON (default) Beep tone OFF

*Beep tones setting are selectable on IC-M503 and HM-134 independently

15

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6

SET MODE

16

When an optional external speaker is connected, the speakers on the transceiver and microphone can be muted.

Set mode

Internal speaker

Internal speaker ON (default) Internal speaker OFF

*Internal speaker setting is selectable on IC-M503 and HM-134 independently

This item adjusts the contrast of the LCD in 8 steps.

Set mode

LCD contrast

LCD contrast 4 (default)

*LCD contrast setting is adjustable on IC-M503 and HM-134 independently

When an optional scrambler unit is connected, the scrambler code can be set depending on dealer setting.

When the UT-98 or UT-112 is installed, 128 or 32 codes (0 to

127 or 1 to 32) can be selected, respectively.

Set mode

Scrambler code

Scrambler code 0 (UT-98 default)

The ATIS ID code can be checked in set mode.

Set mode

ATIS check

0123456789

ATIS code

Scrambler code 127

When an optional scrambler unit is connected, the scrambler unit can be selected in set mode depending on dealer setting.

Set mode

Scrambler type

UT-98 scrambler unit UT-112 scrambler unit

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INTERCOM OPERATION

7

■ Intercom operation

The optional intercom function allows you to talk to the deck from the cabin. The optional HM-134*

REMOTE

-

CONTROL MI

-

CROPHONE is required for intercom operation.

*DO NOT connect another remote-control microphone.

Connect an optional HM-134 as described on p. 39.

• Transmitting is impossible during intercom operation.

• The received signal is muted during intercom operation.

q Push and holding [DIMMER] for 1 sec. to enter intercom mode.

• The HM-134 power is automatically turned ON, even if the power is OFF.

Intercom

INT

INT

IC-M503 HM-134 w Push and hold [DIMMER] again to call up.

• The transceiver and microphone emit call beeps.

e Push and hold the PTT switch and speak at a normal voice level into the microphone.

• “TALK” or “LSTN” appears on the caller or listener function display, respectively.

• To adjust the IC-M503’s speaker output level, rotate [VOL].

• To adjust the HM-134’s speaker output level, push [Y]/[Z] after pushing [VOL].

INT

INT

Intercom

TALK

IC-M503 (caller) HM-134 (listener) r After releasing the PTT switch you can hear the response through the speaker.

t To return to normal operation, push [DIMMER] momentarily.

• Other switches also turn the function OFF, however, the corresponding function is then activated e.g. pushing [16] selects

Channel 16.

• While in the intercom mode, the transceiver functions

(transmit and receive) are interrupted. If the transceiver is in transmit condition, the intercom function is not available.

17

01 IC-M503-(1).qxd 01.12.17 5:00 PM Page 18 (1,1)

18

8

CONNECTIONS AND MAINTENANCE

■ Unpacking

The following accessories are supplied: Qty.

q Mounting bracket ............................................................ 1 w DC power cable (OPC-891) ........................................... 1 e Microphone hanger ........................................................ 1 r Microphone hanger cable*

(OPC-1096 : Black) ........................................................ 1 t Mounting bracket knobs ................................................. 2 y Microphone hanger screws (3 × 16 mm

) ......................... 2 u Mounting screws (5 × 20 mm ) ......................................... 2 i Flat washers (M5) ........................................................... 2 o Spring washers (M5) ...................................................... 2

* Depending on version.

■ Antenna

A key element in the performance of any communication system is an antenna. Ask your dealer about antennas and the best places to mount them.

■ Fuse replacement

Two fuses are installed in the supplied DC power cable. If a fuse blows or the transceiver stops functioning, track down the source of the problem, if possible, and replace the damaged fuse with a new, rated one.

q e t y

■ Cleaning

If the transceiver becomes dusty or dirty, wipe it clean with a soft, dry cloth.

AVOID the use of solvents such as benzene or alcohol, as they may damage transceiver surfaces.

u i o w r

01 IC-M503-(1).qxd 01.12.17 5:00 PM Page 19 (1,1)

■ Connections

q w t r e q DC POWER CONNECTOR

Connects the supplied DC power cable from this connector to an external 12 V DC power source.

CAUTION:

After connecting the DC power cable and external speaker jack, cover the connector and jack as shown below to avoid water seeping into the transceiver.

CONNECTIONS AND MAINTENANCE

8 w EXTENSION JACK

Connects to the optional DS-100 (#02) DSC CONTROLLER .

e EXTERNAL MICROPHONE CONNECTOR

Connects to the optional HM-134

REMOTE

-

CONTROL MICRO

-

PHONE

.

• Intercom function is available.

CAUTION: NEVER

connect another microphone such as the HM-127, etc. It may cause damage to the transceiver.

r ANTENNA CONNECTOR

Connects a marine VHF antenna with a PL-259 connector to the transceiver.

CAUTION :

Transmitting without an antenna may damage the transceiver.

t EXTERNAL SPEAKER JACK

Connects to an external speaker. See ‘Options’ on p. 27 for available external speakers.

19

01 IC-M503-(1).qxd 01.12.17 5:00 PM Page 20 (1,1)

8

CONNECTIONS AND MAINTENANCE

■ Microphone hanger

20

OPC-1096

Rest the supplied microphone on the hanger when not in use.

Connect the OPC-1096* to the transceivers chassis and microphone hanger to use the microphone hanger function.

* Depending on version.

• Tighten the screw at fixing torque 0.7 N •m (6.9 kg•m).

• If the microphone hanger function is used, Channel 16 is selected automatically when the supplied microphone is rested on the hanger.

01 IC-M503-(1).qxd 01.12.17 5:00 PM Page 21 (1,1)

CONNECTIONS AND MAINTENANCE

8

• OVERHEAD MOUNTING

■ Mounting the transceiver

The universal mounting bracket supplied with your transceiver allows overhead or dashboard mounting.

• Mount the transceiver securely with the 2 screws supplied

(M5 × 20) to a surface which is more than 10 mm thick and can support more than 5 kg.

• Mount the transceiver so that the face of the transceiver is at

90° to your line of sight when operating it.

CAUTION:

KEEP the transceiver and microphone at least 1 meter away from your ship’s magnetic navigation compass.

NOTE: Check the installation angle; the function display may not be easy-to-read at some angles.

• MOUNTING ON DASHBOARD

21

01 IC-M503-(1).qxd 01.12.17 5:00 PM Page 22 (1,1)

22

8

CONNECTIONS AND MAINTENANCE

An optional MB-75 FLUSH MOUNT is available for mounting the transceiver to a flat surface such as an instrument panel.

CAUTION:

KEEP the transceiver and microphone at least 1 meter away from your ship’s magnetic navigation compass.

q Using the template on the last page, carefully cut a hole into the instrument panel (or wherever you plan to mount the controller).

w Slide the transceiver through the hole as shown below.

r Attach the clamps on either side of the transceiver.

• Make sure that the clamps align parallel to the transceiver body.

t Tighten the end bolts on the clamps (rotate clockwise) so that the clamps press firmly against the inside of the instrument control panel.

y Tighten the locking nuts (rotate counterclockwise) so that the transceiver is securely mounted in position as below.

u Connect the antenna and control cable, then return the instrument control panel to its original place.

e Attach the 2 bolts supplied (M5 × 8 mm) on either side of the IC-M503.

01 IC-M503-(1).qxd 01.12.17 5:00 PM Page 23 (1,1)

CONNECTIONS AND MAINTENANCE

8

■ Optional unit installation

CAUTION:

DISCONNECT the DC power cable from the transceiver before performing any work on the transceiver.

Otherwise, there is danger of electric shock and/or equipment damage.

w Remove the 4 screws from the shielding plate, then lift up the shielding plate.

e Plug an optional unit to the MAIN unit as shown below.

Follow the case opening procedure shown here when you want to install an optional unit, etc.

q Remove the 6 screws as shown below and open the transceiver.

Optional unit r Return the shielding plate and assemble the units to their original positions.

23

01 IC-M503-(1).qxd 01.12.17 5:00 PM Page 24 (1,1)

8

CONNECTIONS AND MAINTENANCE

■ Dimensions

145.0 (5 23 ⁄

32

˝)

24

165.0 (6 1 ⁄ 2 ˝)

31.4

(1 1 / 4 ˝)

53.0

(2 3 / 32 ˝)

Unit: mm (inch)

01 IC-M503-(1).qxd 01.12.17 5:00 PM Page 25 (1,1)

TROUBLESHOOTING

9

PROBLEM

No power comes ON.

No sound comes from the speaker.

POSSIBLE CAUSE

• Bad connection to the power supply.

• Squelch level is too deep.

• Volume level is too low.

• Speaker has been exposed to water.

Transmitting is impossible, or high power can not be selected.

Scan does not start.

• Some channels are for low power or receive only.

er can

• The output power is set to low.

• “TAG” channel is not programmed.

No beep sounds.

Receive signal cannot be understood.

• Beep tone is turned OFF.

• Optional voice scrambler is turned OFF.

• Scramble code is not set correctly.

SOLUTION

• Check the connection to the transceiver.

• Set squelch to the threshold point.

• Set [VOL] to a suitable level.

• Drain water from the speaker.

• Change channels.

• Push [HI/LO] to select high power.

• Set the desired channels as “TAG” channels.

• Turn the beep tone ON in SET mode.

• Turn the optional voice scrambler ON.

• Reset the scramble code.

REF.

p. 19 p. 8 p. 8

— pgs.

6, 26 p. 8 p. 13 p. 15 p. 10 p. 16

25

01 IC-M503-(1).qxd 01.12.17 5:00 PM Page 26 (1,1)

26

10

CHANNEL LIST

• International channels

CH

Frequency (MHz)

Transmit Receive

CH

Frequency (MHz)

Transmit Receive

CH

Frequency (MHz)

Transmit Receive

CH

Frequency (MHz)

Transmit Receive

CH

Frequency (MHz)

Transmit Receive

CH

Frequency (MHz)

Transmit Receive

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

161.725

02 156.100

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

161.775

03 156.150

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

161.825

04 156.200

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

161.875

05 156.250

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

161.925

06 156.300

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

157.375

07 156.350

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

157.425

08 156.400

156.400

18 156.900

161.500

28 157.400

162.000

69 156.475

156.475

79 156.975

161.575

09 156.450

156.450

19 156.950

161.550

60 156.025

160.625

70 ‡ 156.525

156.525

80 157.025

161.625

10 156.500

156.500

20 157.000

161.600

61 156.075

160.675

71 156.575

156.575

81 157.075

161.675

• USA channels (for U.K. version only)

CH

Frequency (MHz)

Transmit Receive

CH

Frequency (MHz)

Transmit Receive

CH

Frequency (MHz)

Transmit Receive

CH

Frequency (MHz)

Transmit Receive

CH

Frequency (MHz)

Transmit Receive

CH

Frequency (MHz)

Transmit Receive

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

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.

‡ Receive only.

01 IC-M503-(1).qxd 01.12.17 5:00 PM Page 27 (1,1)

SPECIFICATIONS AND OPTIONS

11

■ Specifications

• GENERAL

• Frequency coverage :

Transmit 156.000–161.450 MHz

Receive 156.000–163.425 MHz

• Mode : FM (16K0G3E)

• Channel spacing

• Current drain (at 13.8 V)

: 25 kHz

: TX high

Max. audio

6.0 A max.

1.5 A max.

• Power supply requirement : 13.8 V DC (10.8 to 15.6 V)

• Frequency stability : ±10 ppm (–20°C to +60°C)

• Dimensions : 165(W)

×110(H)×109.4(D) mm

(Projection not included)

• TRANSMITTER

• Output power

• Modulation system

: 25 W and 1 W

: Variable reactance phase modulation

• Max. frequency deviation : ±5.0 kHz

• Spurious emissions : Less than 0.25 µW

• RECEIVER

• Receive system : Double conversion superheterodyne

• Sensitivity (20 dB SINAD) : Less than –3dBµ EMF (typical)

• Squelch sensitivity : Less than 0dBµ EMF

• Intermodulation rejection ratio : More than 68 dB

• Spurious response rejection ratio: More than 70 dB

• Adjacent channel selectivity : More than 70 dB

• Audio output power

IC-M503

HM-134

:

2 W at 10% distortion with a 4

Ω load

2 W at 10% distortion with a 8

Ω load

■ Options

• DS-100 (#02)

DSC CONTROLLER

When the DS-100 is installed, the transceiver conforms to

DSC Class D for marine digital communications.

• MB-75

FLUSH MOUNT

For mounting the transceiver to a panel.

• HM-134

REMOTE

-

CONTROL MICROPHONE

External microphone-type controller. Provides optional intercom operation. 6 m (20 feet) microphone cable and mounting base included. Black color is available.

• OPC-999

MICROPHONE EXTENSION CABLE

6 m (20 feet) microphone extension cable for optional

HM-134. Up to 2 OPC-999 can be connected. (18 m; 60 feet maximum)

• SP-5

EXTERNAL SPEAKER

(IC-M503

ONLY

)

A large, external speaker for superior audio output.

• SP-10

EXTERNAL SPEAKER

(IC-M503

ONLY

)

A compact, external speaker. Features easy installation.

• UT-98

VOICE SCRAMBLER UNIT

• UT-112

VOICE SCRAMBLER UNIT

Ensures private communications. 128 or 32 codes are available. Not available in some countries.

All stated specifications are subject to change without notice or obligation.

27

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28

12

HM-134 REMOTE-CONTROL MICROPHONE

■ Panel description

The optional HM-134 remotely controls the IC-M503 and provides an optional intercom function.

q

!0

o w e r

!1

C

DIM

VOL

MONI L

SQL

DIAL

IC

DUAL i u y t

OPTIONAL

q POWER SWITCH [PWR] (pgs. 8, 33)

When the IC-M503 power is turned ON, push and hold for

2 sec. to turn the HM-134 power ON or OFF.

w PTT SWITCH [PTT] (pgs. 8, 33)

Push and hold to transmit; release to receive.

e CHANNEL UP/DOWN SWITCHES [Y

➥Push either switch to change the operating channel, set mode contents, etc. (pgs. 8, 33)

➥While pushing and holding [VOL], push [Y]/[Z] to adjust the brightness of the LCD and switch backlight. (p. 34)

➥After [VOL] or [SQL] is pushed, push either switch to adjust audio level or noise squelch level, respectively. (pgs.

8, 33)

➥In set mode, changes setting of the selected item. (pgs.

9, 37)

➥During scanning, checks tag channels or changes scanning direction. (pgs. 8, 36) r CHANNEL 16/CALL CHANNEL SWITCH [16•C]

➥When pushed, selects Channel 16. (pgs. 6, 32)

➥When pushed and held for 1 sec., selects call channel.

(pgs. 6, 32)

• “CALL” appears when call channel is selected.

➥When call channel is selected, push and hold for 3 sec.

to enter call channel programming condition. (pgs. 9, 35)

➥While pushing and holding [H/L], enters memory name programming condition. (pgs. 9, 38)

To IC-M503

01 IC-M503-(1).qxd 01.12.17 5:00 PM Page 29 (1,1)

➥Enter set mode when pushed and held while turning power ON. (pgs. 14, 37) t DIAL SWITCH [DIAL]

➥Selects and toggles the regular channels when pushed momentarily. (pgs. 6, 7, 32)

➥While pushing and holding [H/L], push to select channel group. (pgs. 6, 7 and 32)

• The “ EUR” version has International channels only and this function is not available.

y DUAL-WATCH/INTERCOM SWITCH [DUAL•IC]

➥Push to start dualwatch or tri-watch. (pgs. 11, 36)

➥Push and hold for 1 sec. to activate the intercom function. (pgs. 17, 38)

➥Push to stop dualwatch or tri-watch when either is activated.

➥While pushing and holding the switch, you can call the

IC-M503 in intercom mode. (pgs. 17, 38) u SQUELCH/MONITOR/LOCK SWITCH [SQL•MONI•L]

➥After pushing [SQL], [Y]/[Z] sets the squelch threshold level. (p. 33)

➥Push and hold [SQL•MONI] for 1 sec. to turn the monitor function ON. (p. 34)

➥While pushing and holding [H/L], push [SQL•MONI•L] to toggle the microphone key lock function ON or OFF. (p.

34)

• “ T ” appears while key lock function is in use.

• [PWR], [PTT], [VOL], [SQL] and [H/L] still function when the

HM-134 REMOTE-CONTROL MICROPHONE

12 microphone key lock function is turned ON.

➥Advances the cursor while in memory name programming condition. (pgs. 9, 38) i VOLUME/DIMMER SWITCH [VOL•DIM]

➥After pushing [VOL], [Y]/[Z] adjusts the audio level.

➥Push and hold [VOL•DIM] for 1 sec. to adjust the brightness of the LCD and switch backlight. (p. 34)

➥Moves the cursor backward while in memory name programming condition. (pgs. 9, 38) o TRANSMIT POWER SWITCH [H/L]

➥When pushed, toggles high and low power. (pgs. 8, 33)

• Some channels are set to low power only.

➥While pushing and holding this switch, other switches perform secondary functions.

➥Toggles the all key lock function ON or OFF when pushed and held while turning power ON. (p. 34)

• “ T ” flashes while the all key lock function is in use.

• Only [PWR] and [PTT] function when the all key lock function is in use.

!0 SCAN SWITCH [SCAN•TAG] (pgs. 13, 36)

➥Starts and stops normal or priority scan when tag channels are programmed.

➥Push and hold [SCAN•TAG] for 1 sec. to set the displayed channel as a tag (scanned) channel.

➥While pushing and holding [H/L], push and hold for 3 sec. to clear all tag channels.

29

01 IC-M503-(1).qxd 01.12.17 5:00 PM Page 30 (1,1)

30

12

HM-134 REMOTE-CONTROL MICROPHONE

!1 EXTERNAL SPEAKER JACK

➥Connect the external speaker ( an 8 Ω load) . The internal speaker can be deactivated via the Set mode programming. (p. 37)

• The speaker output employs a BTL (Balanced Trans-

Less) circuit, NEVER connect the speaker cable to ground (or chassis). Use a floating setup.

CAUTION:

After connecting the external speaker jack, cover the jack with water resistant tape as shown below to avoid water seeping into the microphone.

Binding the mic-cable and external-speaker jack connection mold with water resistant tape increases the waterproofing of the connection mold.

External SP jack

Connection mold

■ Function display

!7

!6 !5

!4

!3

!2

!1

q w e r t

WAIT TX BUSY TAG CALL LOW

USA

INT

L

DUP DUAL

P SCAN TRI

VOL

SQL

SCRM

!0

o i u y q CHANNEL GROUP INDICATOR (pgs. 6, 32)

Indicates whether an International (INT) or U.S.A. (USA) channel is selected.

w KEY LOCK INDICATOR (p. 34)

➥Appears while the key lock function is in use.

➥Flashes while the all key lock function is in use.

e CHANNEL NUMBER READOUT

➥Indicates the selected operating channel number. “A” appears when a simplex channel is selected. (pgs. 6,

32)

01 IC-M503-(1).qxd 01.12.17 5:00 PM Page 31 (1,1)

➥In set mode, indicates the selected condition. (pgs. 14,

37) r VOLUME INDICATOR (p. 33)

Appears while audio output level is adjusted.

t SQUELCH INDICATOR (p. 33)

Appears while noise squelch level is adjusted.

y CHANNEL NAME INDICATOR

➥Channel comment appears (and scrolls) if programmed.

(pgs. 9, 38)

➥In set mode, indicates or scrolls the selected set mode item. (pgs. 14, 37) u SCRAMBLER INDICATOR (pgs. 10, 35)

Appears when an optional voice scrambler is activated.

i SCAN INDICATOR (pgs. 13, 36)

➥“SCAN” appears during normal scan.

➥“P SCAN” appears during priority scan.

o PRIORITY CHANNEL INDICATOR

➥Indicates a priority channel during priority scan or dual/tri-watch. (pgs. 12, 36)

➥“IC” appears during intercom mode. (pgs. 17, 38)

!0 DUAL/TRI WATCH INDICATOR (pgs. 11, 36)

“DUAL” appears during dualwatch; “TRI” during tri-watch.

!1 LOW POWER INDICATOR (pgs. 8, 33)

HM-134 REMOTE-CONTROL MICROPHONE

12

Appears when low power is selected.

!2 CALL CHANNEL INDICATOR (pgs. 6, 32)

Appears when the call channel is selected.

!3 DUPLEX INDICATOR (pgs. 6, 32)

Appears when a duplex channel is selected.

!4 TAG CHANNEL INDICATOR (pgs. 13, 36)

Appears when a tag channel is selected.

!5 BUSY INDICATOR (pgs. 8, 33, 34)

Appears when receiving a signal or when the squelch opens.

!6 TRANSMIT INDICATOR (pgs. 8, 33)

Appears while transmitting.

!7 “WAIT” INDICATOR

“WAIT” appears in the HM-134 display while transmitting via the IC-M503’s attached microphone.

• In the above case, the connected HM-134 does not have priority.

31

01 IC-M503-(1).qxd 01.12.17 5:00 PM Page 32 (1,1)

32

12

HM-134 REMOTE-CONTROL MICROPHONE

■ Channel selection

q Push [16•C] to select Channel

16.

w Push [DIAL] to return to the condition before selecting Channel

16, or push [Y] or [Z] to select operating channel.

• Output power turns to “25W” automatically, whenever Channel 16 is selected. q Push [DIAL] to select regular channel.

w While pushing and holding [H/L], push [DIAL] to select channel group.

• U.S.A. or International can be selected in sequence.

q Push and hold [16•C] for 1 sec.

to select call channel.

w Push [DIAL] to return to the condition before selecting call channel, or push [Y] or [Z] to select operating channel.

U.S.A. channels

Push and hold then push

DIAL

International channels

01 IC-M503-(1).qxd 01.12.17 5:00 PM Page 33 (1,1)

HM-134 REMOTE-CONTROL MICROPHONE

12

■ Receiving and transmitting

q Push [PWR] to turn power ON.

w Push [VOL], then [Y]/[Z] to adjust audio output level.

• Push [SQL], then [Y]/[Z] to mute any audio noise, if necessary.

e Push [Y]/[Z] to select the desired channel.

• When receiving a signal, “ from the speaker.

” appears and audio is emitted

• Further adjustment of audio level may be necessary at this point.

• Use the optional voice scrambler function for privacy. (pgs. 10,

35) r Push [H/L] to select the output power, if necessary.

• “LOW” appears when low power is selected.

• Choose low power for shorter, high power for longer distance communications.

• Some channels are low power only.

q Turn power ON r Set output power t Push and hold [PTT] to transmit, then speak into the microphone.

• “ ” appears.

• Channel 70 cannot be used for transmission (for GMDSS use).

y Release [PTT] to receive.

IMPORTANT: To maximize the readability of your transmitted signal (voice), pause a few sec. after pushing [PTT], hold the microphone 10 to 15 cm (4 to 6 inches) from your mouth and speak at a normal voice level.

t Push to

transmit y Release

to receive e Set channel w Set volume w Set squelch,

if required t Speak into

microphone

33

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34

12

HM-134 REMOTE-CONTROL MICROPHONE

■ Lock functions

The lock function electronically locks keys and switches to prevent accidental changes and function access from the microphone.

• All keys, switches and controllers on the transceiver are functional.

function

➥While pushing and holding

[H/L], push [SQL] to turn the lock function ON and OFF.

• “ ” appears.

• Only [PWR], [PTT], [H/L],

[SQL•MONI], [VOL]+[Y]/[Z] and

[SQL]+[Y]/[Z] are functional.

Appears when the lock function is in use.

■ Display backlighting

The function display and switches can be backlit for better visibility under low light conditions. And the backlighting condition can be adjusted independently from the transceiver.

q Push and hold [VOL•DIM] for 1 sec. to enter backlight adjusting mode.

• “ ” with number of backlight level appears in the channel name indicator.

w Push [Y]/[Z] to adjust the backlight level.

• The backlight level is adjustable between 0 (lights OFF) and 3

(brightest).

lock function

➥While pushing and holding

[H/L], turn the power ON by pushing [PWR] to turn the all key lock function ON and OFF.

• “ ” flashes.

• Only [PWR] and [PTT] are functional.

Flashes when the all lock function is in use.

■ Monitor function

The monitor function releases the noise squelch mute of the microphone only. (An independent noise squelch system is employed.)

➥Push and hold [SQL•MONI] for 1 sec. to activate the monitor function.

• “ ” flashes and audio is emitted.

• Any key, except [Y]/[Z], cancels the monitor function.

01 IC-M503-(1).qxd 01.12.17 5:00 PM Page 35 (1,1)

■ Call channel programming

q While pushing and holding [H/L], push [DIAL] several times to select the desired channel group (USA or

INT) to be programmed.

w Push and hold [16•C] for 1 sec. to select the call channel of the selected channel group.

• “CALL” and call channel number appear.

e Push and hold [16•C] again for

3 sec. (until long beep changes to

2 short beeps) to enter call channel programming condition.

• Call channel number and channel group to be programmed flashes.

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

t Push [16•C] to program the displayed channel as the call channel.

• The call channel number and channel group stop flashing.

HM-134 REMOTE-CONTROL MICROPHONE

12

■ Optional voice scrambler operation

q Select an operating channel, other than Channel 16.

w While pushing and holding

[H/L], push [DUAL] to turn the voice scrambler function

ON.

• “SCRM” appears.

e To turn the scrambler function OFF, repeat step w.

• “SCRM” disappears.

Appears when the voice scrambler function is in use.

There are 128 codes (00 to 127) available with UT-98 or 32 codes (01 to 32) available with the UT-112 for programming.

In order to understand one another, all transceivers in your group must have the same scrambler code, as well as the same scrambler unit. The scrambler code is programmed in set mode. See pgs. 10, 16, 37 for details.

35

01 IC-M503-(1).qxd 01.12.17 5:00 PM Page 36 (1,1)

36

12

HM-134 REMOTE-CONTROL MICROPHONE

■ Starting a scan

q While pushing and holding [H/L], push [DIAL] several times to select the channel group (USA or INT), if desired.

w Push [SCAN] to start priority or normal scan.

• “SCAN” appears during normal scan.

• The priority channel readout indicates

“16”, and “P” and “SCAN” indicators appear during priority scan.

• When a signal is received, scan pauses until the signal disappears or resumes after pausing 5 sec. according to set mode setting (Channel 16 is still monitored during priority scan).

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

e To stop the scan, push [SCAN].

• “SCAN” disappears.

• Pushing [PTT], [16•C] or [DIAL] also stops the scan.

■ Setting tag channels

q While pushing and holding [H/L], push [DIAL] several times to select the channel group (USA and INT), if desired.

w Push [Y]/[Z] to select the desired channel to set as a tag channel.

e Push and hold [SCAN•TAG] for

1 sec. to set the displayed channel as a tag channel.

• “ ” appears.

r To cancel the tag channel setting, push and hold [SCAN•TAG] for

1 sec.

• “ ” disappears.

• Clearing all tag channels in the selected channel group

➥While pushing and holding [H/L], push [SCAN•TAG] for 3 sec. to clearing all tag channels. (until long beep changes to 2 short beeps)

■ Dualwatch/Tri- watch operation

q Push [Y]/[Z] to select the desired channel.

• While pushing and holding [H/L], push

[DIAL] several times to select the channel group (USA, INT), if desired.

w Push [DUAL] to start dualwatch or tri-watch.

• “DUAL” appears during dualwatch; “TRI” appears during tri-watch.

• Beep tone sounds when a signal is received on Channel 16.

• Tri-watch becomes dualwatch when receiving a signal on the call channel.

e To cancel dualwatch/tri-watch, push

[DIAL] again.

01 IC-M503-(1).qxd 01.12.17 5:00 PM Page 37 (1,1)

■ Set mode programming

Set mode is used to change the condition of the transceiver’s functions and the microphone’s own functions:

Transceiver’s functions—

Scan mode (normal or priority), scan resume timer, dualwatch/tri-watch selection, beep tone function, internal speaker, LCD contrast, scrambler code, scrambler type and

ATIS check.

Microphone’s own functions—

Beep tone function, LCD contrast and internal speaker.

In this section, instructions are for the microphone’s own functions only. Refer to pgs. 14–16 for the setting of the other functions. (Some functions may not be selectable from the microphone.)

HM-134 REMOTE-CONTROL MICROPHONE

12

• Beep tone “BEEP”

➥Push [Y] to turn ON, [Z] to turn OFF the beep output.

Push

• LCD contrast “LCD CONTRAST”

➥Push [Y]/[Z] to adjust to a suitable LCD contrast.

• •

Push

• • q Turn power OFF.

w While pushing and holding [16•C], turn power ON.

• After beep emission, a set mode item (in the channel name indicator and condition in the channel number readout) is displayed.

e Push [16•C] to select the desired item, if necessary.

r Push [Y]/[Z] to select the desired condition of the item.

t Turn power OFF, then ON to exit set mode.

• Internal speaker “INT-SPEAKER”

➥Push [Y]/[Z] to turn the HM-134 internal-speaker ON/OFF.

Push

37

01 IC-M503-(1).qxd 01.12.17 5:00 PM Page 38 (1,1)

38

12

HM-134 REMOTE-CONTROL MICROPHONE

■ Intercom operation

q Push and hold [DUAL] for 1 sec.

to activate the intercom function.

• “IC” appears in the priority channel readout.

• The channel name disappears.

w Push [PTT] to talk.

• “ ” appears in the channel name indicator.

e Release [PTT] to listen.

Appears when the intercom function is in use.

• “ ” appears in the channel name indicator when the transceiver is in talking mode.

r Push [DUAL] to cancel the intercom function.

• Pushing [16], [SCAN•TAG] or [DIAL] is also cancels the intercom function.

For your reference:

In case the intercom mode is selected with the transceiver during microphone power OFF, the microphone power is automatically turned ON and the intercom mode is selected.

➥Push and hold [DIAL] for more than 1 sec.

• Emits intercom beep while holding.

■ Channel names

q Push [Y]/[Z] to select a channel to program.

• While pushing and holding [H/L], push [DIAL] several times to select the channel group (USA and INT), if desired.

w While pushing and holding [H/L], push [16•C].

• The 1st character of the currently programmed comment flashes.

e Push [Y]/[Z] to select a character.

r Push [SQL] to move to right; then push [Y]/[Z] to select a character.

• Push [VOL] to move to the left.

t Continue until the desired characters have been selected, then push [16•C] to return to normal operation.

• Available characters

(space) (!) (") (#) ($) (%) (&) (’) (( ) ( ))

(

✱)

(4)

(+)

(5)

(,)

(6)

(–)

(7)

(.)

(8)

(/)

(9)

(0)

(A)

(1)

(B)

(2)

(C)

(3)

(D)

(E)

(O)

(Y)

(F)

(P)

(Z)

(G) (H)

(Q)

(a)

(R)

(b)

(I)

(S)

(c)

(J) (K) (L)

(T)

(d)

(U)

(e)

(V)

(f)

(M)

(W)

(g)

(N)

(X)

(h)

(i)

(s)

(j) (k) (l) (m) (n) (o) (p)

(t) (u) (v) (w) (x) (y) (z)

(q) (r)

01 IC-M503-(1).qxd 01.12.17 5:00 PM Page 39 (1,1)

HM-134 CONNECTIONS AND INSTALLATION

13

■ HM-134 supplied accessories

Accessories included with the HM-134: Qty.

q Connection cable (OPC-1000: 6 m; 20 ft) ...................... 1 w Mounting base ................................................................ 1 e Microphone hanger ........................................................ 1 r Screws (M3 × 16; tapping) ............................................. 5

■ Installation

The optional HM-134 can be connected to the transceiver directly, as well as via the supplied connection cable for longer distance remote operation. The connector of the connection cable can be installed into a cabinet, wall, etc., as a built-in plug.

For longer distance remote operation, the optional extension cable, OPC-999 (6 m; 20 ft/Connecting between transceiver and the connection cable.), is available, and up to 2 OPC-999 can be added.

q Insert the supplied cable into the external microphone jack and tighten the cable nut as shown below.

w e r q

39

01 IC-M503-(1).qxd 01.12.17 5:00 PM Page 40 (1,1)

13

HM-134 CONNECTIONS AND INSTALLATION w To use the supplied cable as a wall socket, see the following steps.

e Using the mounting base, carefully mark off the 2 spots where the cable and screws will be fastened.

r Drill holes at these marks.

t Install the mounting base using screws as shown below.

y The installation is completed.

Mounting base Nut

Gasket

Screw holes

(approx. 2 (d) mm; 3 ⁄

32

″)

Cap

40

01 IC-M503-(1).qxd 01.12.17 5:00 PM Page 41 (1,1)

2 mm; 3 ⁄

32

˝

HM-134 CONNECTIONS AND INSTALLATION

13

Mounting base

5 mm; 3 ⁄

16

˝ 2 mm; 3 ⁄ 32 ˝ x 3

Gasket

Nut

Cap

24 to 27 (d) mm

( 15 ⁄ 16 to 1 1 ⁄ 16 ˝)

41

01 IC-M503-(1).qxd 01.12.17 5:00 PM Page 43 (1,1)

MB-75

HM-134

24 to 27 (d) mm

( 15 ⁄ 16 to 1 1 ⁄ 16 ˝)

149 (5 7 ⁄

8

˝)

MB-75 TEMPLATE

4–R11

2 mm; 3 ⁄ 32 ˝

Unit: mm (inch)

01 IC-M503-(1).qxd 01.12.17 5:00 PM Page 45 (1,1)

INSTALLATION NOTES

■ Installation notes

The installation of this equipment should be made in such a manner as to respect the EC recommended electromagnetic field exposure limits (1999/519/EC).

The maximum RF power available from this device is 25 watts. The antenna should be installed as high as possible for maximum efficiency and that this installation height should be at least 5 meters above ground (or accessible) level. In the case where an antenna cannot be installed at a reasonable height, then the transmitter should neither be continuously operated for long periods if any person is within 5 meters of the antenna, nor operated at all if any person is touching the antenna.

In all cases any possible risk depends on the transmitter being activated for long periods. (actual recommendation limits are specified as an average of 6 minutes) Normally the transmitter is not active for long periods of time. Some radio licenses will require that a timer circuit automatically cuts the transmitter after 1–2 minutes etc.

Similarly some types of transmitter, SSB, CW, AM, etc. have a lower ‘average’ output power and the perceived risk is even lower.

01 IC-M503-(1).qxd 01.12.17 5:00 PM Page 46 (1,1)

DECLARATION

OF CONFORMITY

We Icom Inc. Japan

1-1-32 Kamiminami, Hirano-ku,

Osaka 547-0003 Japan

Declare on our sole responsibility that this equipment complies with the essential requirements of the Radio and Telecommunications Terminal

Equipment Directive, 1999/5/EC, and that any applicable Essential Test

Suite measurements have been performed.

Kind of equipment: VHF MARINE TRANSCEIVER

Type-designation: iC- m503

Version (where applicable):

This compliance is based on conformity with the following harmonised standards, specifications or documents: i) EN 301 025-1 ii) EN 301 025-2

V1.1.2 (2000-08)

V1.1.1 (2000-08) iii) EN 301 025-3 iv) EN 300 162-2 v) EN 300 162-3 vi) EN 60945 vii) EN 60950 viii) EN 300 698-2

V1.1.1 (2001-05)

V1.1.2 (2000-12)

V1.1.1 (2001-05)

1997

1992

V1.1.1 ( 2000-8)

Signature

0560

Düsseldorf 25th Sept. 2001

Place and date of issue

Icom (Europe) GmbH

Himmelgeister straße 100

D-40225 Düsseldorf

Authorized representative name

T. Maebayashi

General Manager

01 IC-M503-(1).qxd 01.12.17 5:00 PM Page Z (1,1)

Count on us!

< Intended Country of Use >

GER

AUT

FRA

NED

ESP

POR

SWE

DEN

BEL

LUX

ITA

GRE

FIN

SUI

GBR

IRL

A-6097D-1EU-q

Printed in Japan

© 2001 Icom Inc.

1-1-32 Kamiminami, Hirano-ku, Osaka 547-0003 Japan

01 IC-M503-(1).qxd 01.12.17 5:00 PM Page AA (1,1)

AA

10

CHANNEL LIST

• International channels

CH

Frequency (MHz)

Transmit Receive

CH

Frequency (MHz)

Transmit Receive

CH

Frequency (MHz)

Transmit Receive

CH

Frequency (MHz)

Transmit Receive

CH

Frequency (MHz)

Transmit Receive

CH

Frequency (MHz)

Transmit Receive

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

161.725

02 156.100

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

161.775

03 156.150

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

161.825

04 156.200

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

161.875

05 156.250

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

161.925

06 156.300

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

157.375

07 156.350

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

157.425

08 156.400

156.400

18 156.900

161.500

28 157.400

162.000

69 156.475

156.475

79 156.975

161.575

09 156.450

156.450

19 156.950

161.550

60 156.025

160.625

70 ‡ 156.525

156.525

80 157.025

161.625

10 156.500

156.500

20 157.000

161.600

61 156.075

160.675

71 156.575

156.575

81 157.075

161.675

• USA channels (for U.K. version only)

CH

Frequency (MHz)

Transmit Receive

CH

Frequency (MHz)

Transmit Receive

CH

Frequency (MHz)

Transmit Receive

CH

Frequency (MHz)

Transmit Receive

CH

Frequency (MHz)

Transmit Receive

CH

Frequency (MHz)

Transmit Receive

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

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.

‡ Receive only.