INSTRUCTION MANUAL
VHF MARINE TRANSCEIVER
iM503
TABLE OF CONTENTS
IN CASE OF EMERGENCY........................i
TABLE OF CONTENTS ..............................ii
IMPORTANT ..............................................iii
CAUTIONS.................................................iii
8
CONNECTIONS AND
I Setting tag channels ...................... 36
I Dualwatch/Tri-watch operation ...... 36
I Set mode programming ................. 37
I Intercom operation ......................... 38
I Channel names .............................. 38
13 HM-134 CONNECTIONS AND
MAINTENANCE ......................... 18–24
I Unpacking ...................................... 18
I Antenna ......................................... 18
I Fuse replacement .......................... 18
I Cleaning ......................................... 18
I Connections ................................... 19
I Microphone hanger ........................ 20
I Mounting the transceiver ............... 21
I Optional unit installation ................. 23
I Dimensions..................................... 24
TROUBLESHOOTING ...................... 25
1
2
OPERATING RULES .......................... 1
PANEL DESCRIPTION .................. 2–5
I Panel description ............................. 2
I Function display ............................... 4
I Microphone ...................................... 5
BASIC OPERATION .................... 6–10
I Channel selection ............................ 6
I Receiving and transmitting .............. 8
I Call channel programming ............... 9
I Channel names ................................ 9
INSTALLATION ........................... 39-41
I HM-134 supplied accessories .........39
I Installation .......................................39
MB-75 TEMPLATE
INSTALLATION NOTES
3
9
10 CHANNEL LIST ................................ 26
11 SPECIFICATIONS AND OPTIONS ... 27
I Specifications ................................. 27
I Options .......................................... 27
12 HM-134 REMOTE-CONTROL
I
Optional voice scrambler operation .. 10
4
5
DUALWATCH/TRI-WATCH ............... 11
I Description ..................................... 11
I Operation ....................................... 11
SCAN OPERATIONS ................. 12–13
I Scan types ..................................... 12
I Setting tag channels ...................... 13
I Starting a scan ............................... 13
SET MODE ................................. 14–16
I Set mode programming ................. 14
I Set mode items .............................. 15
INTERCOM OPERATION ................. 17
I Intercom operation ......................... 17
MICROPHONE ........................... 28-38
I Panel description ........................... 28
I Function display ............................. 30
I Channel selection .......................... 32
I Receiving and transmitting ............ 33
I Lock functions ................................ 34
I Display backlighting ....................... 34
I Monitor function ............................. 34
I Call channel programming ............. 35
I Optional voice scrambler
6
7
operation......................................... 35
I Starting a scan ............................... 36
ii
IMPORTANT
READ ALL INSTRUCTIONS carefully and completely
before using the transceiver.
SAVE THIS INSTRUCTION MANUAL — This in-
struction 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.
atures below –20°C or above +60°C or, in areas subject to di-
rect sunlight, such as the cockpit.
AVOID the use of chemical agents such as benzine or al-
cohol when cleaning, as they may damage the transceiver
surfaces.
NEVER connect the transceiver to a power source of more
than 15.6 V DC or using reverse polarity. This will ruin the
transceiver.
BE CAREFUL! The transceiver rear panel will become
hot when operating continuously for long periods.
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.
BE CAREFUL! The optional HM-134 remote-control mi-
crophone’s rear panel will become hot when monitoring con-
tinuously for long periods.
NEVER place the transceiver where normal operation of the
vessel may be hindered or where it could cause bodily injury.
Place the transceiver in a secure place to avoid inadvertent
use by children.
KEEP the transceiver at least 1 m away from the ship’s nav-
igation compass.
After exposure to salt water, clean the transceiver thoroughly
with fresh water to avoid corrosion.
DO NOT use or place the transceiver in areas with temper-
iii
OPERATING RULES
1
(2) OPERATOR’S LICENSE
ï
PRIORITIES
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.
•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.
The Restricted Radiotelephone Operator Permit must be
posted or kept with the operator. Only a licensed radio opera-
tor may operate a transceiver.
•False or fraudulent distress signals are prohibited and pun-
ishable by law.
However, non-licensed individuals may talk over a transceiver
if a licensed operator starts, supervises, ends the call and
makes the necessary log entries.
ï
PRIVACY
•Information overheard but not intended for you cannot law-
fully be used in any way.
Keep a copy of the current government rules and regulations
handy.
•Indecent or profane language is prohibited.
ï
RADIO LICENSES
(1) SHIP STATION LICENSE
You must have a current radio station license before using the
transceiver. It is unlawful to operate a ship station which is not
licensed.
Inquire through your dealer or the appropriate government
agency for a Ship-Radiotelephone license application. This
government-issued license states the call sign which is your
ship’s identification for radio purposes.
1
PANEL DESCRIPTION
2
I Panel description
!
1
!
0
o
i
VHF MARINE
iM503
Function
display
16
WATER RESISTANT
Speaker
SCAN
TAG
DUAL
HI/LO
DIAL
CALL
q
DIMMER
POWER
VOL
SQL
w
e
r
t
y
u
q POWER SWITCH [POWER]
r TRANSMIT POWER SWITCH [HI/LO]
➥Push to Toggle high and low power . (p. 8)
•Some channels are set to low power only.
Push to toggle the transceiver power ON and OFF.
➥While pushing and holding this switch, other switches
perform secondary functions.
w VOLUME CONTROL [VOL]
Adjusts the audio level. (p. 8)
e SQUELCH CONTROL [SQL]
Sets the squelch threshold level. (p. 8)
2
PANEL DESCRIPTION
2
function is not available.
t CHANNEL SELECTOR [CHANNEL]
Rotate [CHANNEL] to select the operating channels, set
mode contents, etc. (p. 8)
! 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 dis-
played channel as a tag (scanned) channel.
➥While pushing and holding [HI/LO], push and hold for 3
sec. to clear all tag channels.
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.
! DUALWATCH/TRI-WATCH SWITCH [DUAL] (p. 11)
➥Push to start dualwatch or tri-watch.
➥When dualwatch/tri-watch is activated, push to stop
them.
u CALL CHANNEL SWITCH [CALL]
➥Push to select the call channel. (p. 6)
➥Push and hold for 3 sec. to enter call channel program-
ming 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 chan-
nel group. (pgs. 6, 7)
•The “EUR” version has International channels only and this
3
PANEL DESCRIPTION
2
to approx. 10 V DC or below.
➥“DUAL” appears during dualwatch; “TRI” appears dur-
ing tri-watch. (p. 11)
➥“WAIT” appears in the IC-M503 display while transmit-
ting 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 func-
tion is activated.
I Function display
o
i
q
w
e
r
BUSY
25W
INT
CALL
u
TAG SC DUP
CALLING
t SCRAMBLER INDICATOR (p. 10)
t y
Appears when the optional voice scrambler is activated.
y DUPLEX INDICATOR
Appears when a duplex channel is selected.
q BUSY/TRANSMIT INDICATOR (p. 8)
u CHANNEL NUMBER READOUT
➥“BUSY” appears when receiving a signal or when the
squelch opens.
➥“TX” appears while transmitting.
➥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)
w POWER INDICATOR (p. 8)
➥“25W” appears when high power is selected.
➥“1W” appears when low power is selected.
i CHANNEL GROUP INDICATOR (p. 6)
Indicates whether an International, U.S.A., Holland, DSC
or ATIS channel is selected.
e TAG CHANNEL INDICATOR (p. 13)
Appears when a tag channel is selected.
•Available channel groups depend on version.
r CHANNEL NAME INDICATOR
o CALL CHANNEL INDICATOR (pgs. 6, 9)
➥Channel comment appears if programmed. (p. 9)
➥“Low Battery” appears when the battery voltage drops
Appears when a call channel is selected.
4
PANEL DESCRIPTION
2
I Microphone
q
Speaker
Microphone
w
e
q PTT SWITCH [PTT]
Push and hold to transmit; release to receive. (p. 8)
w CHANNEL UP/DOWN SWITCHES [Y]/[Z]
Push either switch to change the operating memory chan-
nel, 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.
5
BASIC OPERATION
3
➥Push [CALL] to select the call channel of the selected
channel group.
I Channel selection
•“CALL” and call channel number appear.
ï
Channel 16
➥Push [DIAL] to return to the condition before selecting call
channel, or rotate [CHANNEL] to select operating channel.
Channel 16 is the distress and safety channel. It is used for
establishing initial contact with another station and for emer-
gency communications. Channel 16 is monitored during both
dualwatch and tri-watch. While standing by, you must monitor
Channel 16.
INT
25W
CALL
CALL
Push
TAG
➥Push [16] to select Channel 16.
CALLING
•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.
ï
International channels
There are 57 International channels for the IC-M503.
➥Push [DIAL] to return to the condition before selecting Chan-
nel 16, or rotate [CHANNEL] to select operating channel.
•Output power returns to the previous output power automatically.
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
25W
•“INT” appears when International channels are selected.
e Rotate the channel selector to select a channel.
•“DUP” appears for duplex channels.
16
Push
TAG
CALLING
INT
25W
ï
Call channel
TAG
DUP
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.
INTL
6
BASIC OPERATION
3
ï
U.S.A. channels (U.K. version only)
HOLLAND
DUP
For the U.K. versions, there are 58 U.S.A. channels in addi-
1W
tion to 57 International channels.
INTL
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.
ï
ATIS and DSC channels (FRG version only)
For the FRG versions, there are 57 ATIS and 57 DSC chan-
nels 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.
USA
25W
TAG
CCG
•International, ATIS and DSC channels can be selected in se-
quence.
e Rotate the channel selector to select a channel.
•Channels are memorized separately for each channel group.
ï
Holland channels (Holland version only)
For Holland versions, there are 59 Holland channels in addi-
ATIS
25W
tion to 57 International channels.
TAG
DUP
q Push [DIAL] to select a regular channel.
INTL
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.
7
BASIC OPERATION
3
y Push and hold [PTT] to transmit, then speak into the mi-
crophone.
I Receiving and transmitting
•“TX” appears.
CAUTION: Transmitting without an antenna may dam-
age the transceiver.
•Channel 70 cannot be used for transmission (for GMDSS use).
u Release [PTT] to receive.
q Push [POWER] to turn power ON.
w Set the audio and squelch levels.
IMPORTANT: To maximize the readability of your trans-
mitted 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.
➥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 micro-
phone to select the desired channel.
q t
e
y u
VHF MARINE
iM503
•When receiving a signal, “BUSY” appears and audio is emitted
16
WATER RESISTANT
from the speaker.
SCAN
TAG
DUAL
DIAL
CALL
•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, re-
spectively.
HI/LO
DIMMER
POWER
VOL
SQL
•Choose low power to conserve power, choose high power for
longer distance communications.
w
r
r
t
•Some channels are for low power only.
8
BASIC OPERATION
3
I Call channel programming
I Channel names
The call channel switch can be programmed to your most
often-used channels in each channel group for quick recall.
Memory channels can be tagged with alphanumeric names
of up to 10 characters each.
q While pushing and holding [HI/LO], push [DIAL] one or
more times to select the desired channel group (Interna-
tional, U.S.A., Holland, ATIS, DSC) to be programmed.
w Push and hold [CALL] for 3 sec. to enter the call channel
programming condition.
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.
•Channel number starts flashing.
INT
•A cursor appears and blinks.
25W
CALL
TAG
INT
25W
CALLING
TAG
äLEASURE
e Rotate the channel selector to select the desired channel.
INT
e Select the desired character by rotating the channel selec-
tor 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.
25W
CALL
DUP
TAG
INTL
r Push [CALL] to program the displayed channel as the call
channel.
t Repeat steps q to r to program another memory channel
name, if desired.
•Push [DIAL] to cancel the programming.
•The channel number stops flashing.
9
BASIC OPERATION
3
I Optional voice scrambler operation
ï
ï
Activating the scrambler
Programming scrambler codes
The optional voice scrambler provides private communica-
tions. 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.
There are 128 or 32 codes (0 to 127 or 1 to 32) available for
programming. In order to understand one another, all trans-
ceivers in your group must have the same scramble code.
This function may not be available depending on dealer set-
ting.
q Select an operating channel other than Channel 16 and
70.
w While pushing and holding [HI/LO], push [DIMMER] to tog-
gle an optional scrambler function ON or OFF.
•“SC” appears.
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.
e To turn the scrambler function OFF, repeat step w.
•“SC” disappears.
•“Scrambler code” appears.
t Rotate the channel selector to select the desired scram-
bler code.
y Turn power OFF, then ON again to exit set mode.
[Example]: Programming scrambler code 127.
16
POWER
16
+
Set mode
Beep
Set mode
Set mode
Push one or
more times.
Enter set mode
Scrambler
code
Scrambler
code
Select code
Set mode
Scrambler code item
10
DUALWATCH/TRI-WATCH
4
I Description
I Operation
Dualwatch monitors Channel 16 while you are receiving an-
other channel; tri-watch monitors Channel 16 and the call
channel while receiving another channel.
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 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.
DUALWATCH/TRI-WATCH SIMULATION
r To cancel dualwatch/tri-watch, push [DUAL] again.
Call channel
[Example]: Operating tri-watch on INT Channel 25.
INT
Tri-watch starts.
25W
TAG
TRI
DUP
16
BUSY
25W
INT
Signal is received
on call channel.
CALL
Dualwatch
Tri-watch
TAG
CALLING 16
•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, tri-
watch becomes dualwatch until the signal disappears.
•To transmit on the selected channel during dualwatch/tri-watch,
push and hold [PTT].
BUSY
25W
INT
DUP
Signal received on
Channel 16 takes
priority.
TAG
CALLING 16
INT
Tri-watch resumes
after the signal
disappears.
25W
TAG
TRI
DUP
16
11
SCAN OPERATIONS
5
I Scan types
Scanning is an efficient way to locate signals quickly over a
wide frequency range. The transceiver has priority scan and
normal scan.
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 ad-
vance. (p. 15)
PRIORITY SCAN
NORMAL SCAN
CH 01
CH 02
CH 01
CH 02
CH 06
CH 03
CH 06
CH 16
CH 03
CH 05
CH 04
CH 05
CH 04
Priority scan searches through all tag channels in se-
quence while monitoring Channel 16. When a signal is de-
tected on Channel 16, scan pauses until the signal disap-
pears; when a signal is detected on a channel other than
Channel 16, scan becomes dualwatch until the signal dis-
appears.
Normal scan, like priority scan, searches through all tag
channels in sequence. However, unlike priority scan, Chan-
nel 16 is not checked unless Channel 16 is set as a tag
channel.
12
SCAN OPERATION
5
for 3 sec. to clear all tag channels in the channel group.
I 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) indepen-
dently.
I Starting a scan
Set scan type (priority or normal scan) and scan resume timer
in advance using set mode. (p. 15)
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 disap-
pears or resumes after pausing 5 sec. according to set mode set-
ting. (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.
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]
r To stop the scan, push [SCAN].
•“Pri scan” or “Normal scan” disappears.
[Example]: Starting a normal scan.
Push
INT
DUP
INT
DUP
BUSY
25W
INT
DUP
SCAN
25W
25W
TAG
TAG
TAG
TAG
INTL
Normal scan
Normal scan
Scan starts.
When a signal is received
13
SET MODE
6
I Set mode programming
Set mode is used to change the conditions of the trans-
ceiver’s functions: scan mode (normal or priority), scan re-
sume 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.
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.
•Available functions may differ depending on dealer set-
ting.
y Turn power OFF, then ON again to exit set mode.
•The optional HM-134 has it’s own settings for the beep
tone, internal speaker and LCD contrast.
•SET MODE CONSTRUCTION
Scan mode
Scan resume timer
Dual/tri watch
ATIS check
Scan mode
Scan timer
DUAL/TRI
ATIS check
Beep tone
16
Push
Beep
Scrambler type
Scrambler code
LCD contrast
Internal speaker
Scrambler
type
Scrambler
code
LCD
contrast
Internal
speaker
14
SET MODE
6
I Set mode items
ï
Dual/tri watch
ï
Scan mode
This item sets the [DUAL] switch function as dual watch or tri-
The transceiver has 2 scan modes: normal scan and priority
scan. Normal scan searches all tag channels in the selected
channel group. Priority scan searches all tag channels in se-
quence while monitoring channel 16.
watch.
See the section ‘Dual watch/Tri-watch’ for details.
Set mode
DUAL/TRI
Set mode
Scan mode
Dual watch (default)
Tri-watch
Priority scan (default)
Normal scan
ï
Scan resume timer
ï
Beep tone
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.
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
Set mode
Scan timer
Beep tone ON (default)
Beep tone OFF
*Beep tones setting are selectable on IC-M503 and HM-134 inde-
pendently
Scan timer ON (default)
Scan timer OFF
15
SET MODE
6
ï
Internal speaker
Set mode
When an optional external speaker is connected, the speak-
ers on the transceiver and microphone can be muted.
Scrambler
code
Set mode
Scrambler code 0 (UT-98 default)
Scrambler code 127
Internal
speaker
ï
Scrambler type
Internal speaker ON (default)
Internal speaker OFF
When an optional scrambler unit is connected, the scrambler
*Internal speaker setting is selectable on IC-M503 and HM-134
independently
unit can be selected in set mode depending on dealer setting.
Set mode
ï
LCD contrast
Scrambler
type
This item adjusts the contrast of the LCD in 8 steps.
Set mode
UT-98 scrambler unit
UT-112 scrambler unit
LCD
contrast
ï
ATIS check
LCD contrast 4 (default)
*LCD contrast setting is adjustable on IC-M503 and HM-134 in-
dependently
The ATIS ID code can be checked in set mode.
Set mode
ATIS check
0123456789
ï
Scrambler code
When an optional scrambler unit is connected, the scrambler
code can be set depending on dealer setting.
ATIS code
When the UT-98 or UT-112 is installed, 128 or 32 codes (0 to
127 or 1 to 32) can be selected, respectively.
16
INTERCOM OPERATION
7
I 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.
•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].
*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.
INT
INT
Intercom
TALK
q Push and holding [DIMMER] for 1 sec. to enter intercom
IC-M503 (caller)
HM-134 (listener)
mode.
•The HM-134 power is automatically turned ON, even if the power
is OFF.
r After releasing the PTT switch you can hear the response
through the speaker.
t To return to normal operation, push [DIMMER] momentar-
INT
ily.
INT
•Other switches also turn the function OFF, however, the corre-
sponding function is then activated e.g. pushing [16] selects
Channel 16.
Intercom
IC-M503
HM-134
•While in the intercom mode, the transceiver functions
(transmit and receive) are interrupted. If the transceiver is
in transmit condition, the intercom function is not avail-
able.
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 dis-
play, respectively.
17
CONNECTIONS AND MAINTENANCE
8
I Unpacking
I Antenna
The following accessories are supplied:
Qty.
A key element in the performance of any communication sys-
tem is an antenna. Ask your dealer about antennas and the
best places to mount them.
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.
I 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 dam-
aged fuse with a new, rated one.
I Cleaning
If the transceiver becomes dusty or dirty, wipe it clean with a
soft, dry cloth.
t
q
e
y
AVOID the use of solvents such as benzene or al-
cohol, as they may damage transceiver surfaces.
i
o
w
r
18
CONNECTIONS AND MAINTENANCE
8
w EXTENSION JACK
I Connections
Connects to the optional DS-100 (#02) DSC CONTROLLER.
e EXTERNAL MICROPHONE CONNECTOR
Connects to the optional HM-134 REMOTE-CONTROL MICRO-
PHONE.
t
q
•Intercom function is available.
CAUTION: NEVER connect another microphone such
as the HM-127, etc. It may cause damage to the trans-
ceiver.
r
e
w
r ANTENNA CONNECTOR
Connects a marine VHF antenna with a PL-259 connector
to the transceiver.
CAUTION: Transmitting without an antenna may damage
q DC POWER CONNECTOR
the transceiver.
Connects the supplied DC power cable from this connector
to an external 12 V DC power source.
t EXTERNAL SPEAKER JACK
Connects to an external speaker. See ‘Options’ on p. 27
for available external speakers.
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.
19
CONNECTIONS AND MAINTENANCE
8
I Microphone hanger
OPC-1096
Rest the supplied microphone on the hanger when not in use.
Connect the OPC-1096* to the transceivers chassis and mi-
crophone 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 se-
lected automatically when the supplied microphone is rested
on the hanger.
20
CONNECTIONS AND MAINTENANCE
8
•OVERHEAD MOUNTING
I Mounting the transceiver
ï
Using the supplied mounting bracket
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.
•MOUNTING ON DASHBOARD
NOTE: Check the installation angle; the function display
may not be easy-to-read at some angles.
21
CONNECTIONS AND MAINTENANCE
8
r Attach the clamps on either side of the transceiver.
• Make sure that the clamps align parallel to the transceiver body.
ï
Using the optional mounting bracket
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.
t Tighten the end bolts on the clamps (rotate clockwise) so
that the clamps press firmly against the inside of the in-
strument control panel.
y Tighten the locking nuts (rotate counterclockwise) so that
the transceiver is securely mounted in position as below.
u Connect the antenna and control cable, then return the in-
strument control panel to its original place.
e Attach the 2 bolts supplied (M5 × 8 mm) on either side of
the IC-M503.
22
CONNECTIONS AND MAINTENANCE
8
I Optional unit installation
CAUTION: DISCONNECT the DC power cable from the
transceiver before performing any work on the transceiver.
Otherwise, there is danger of electric shock and/or equip-
ment damage.
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.
ï
Opening the transceiver case
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 trans-
ceiver.
Optional unit
r Return the shielding plate and assemble the units to their
original positions.
23
CONNECTIONS AND MAINTENANCE
8
I Dimensions
145.0 (5 23⁄32˝)
31.4
53.0
165.0 (6 1⁄2˝)
(1 1/4˝) (2 /32˝)
3
Unit: mm (inch)
24
TROUBLESHOOTING
9
PROBLEM
POSSIBLE CAUSE
SOLUTION
REF.
No power comes ON.
•Bad connection to the power supply.
•Check the connection to the transceiver.
p. 19
No sound comes from
the speaker.
•Squelch level is too deep.
•Volume level is too low.
•Speaker has been exposed to water.
•Set squelch to the threshold point.
•Set [VOL] to a suitable level.
•Drain water from the speaker.
p. 8
p. 8
—
Transmitting is impossi- •Some channels are for low power or re-
ble, or high power can - ceive only.
•Change channels.
pgs.
6, 26
p. 8
not be selected.
•The output power is set to low.
•Push [HI/LO] to select high power.
Scan does not start.
•“TAG” channel is not programmed.
•Set the desired channels as “TAG” chan-
p. 13
nels.
No beep sounds.
•Beep tone is turned OFF.
•Turn the beep tone ON in SET mode.
p. 15
Receive signal cannot
be understood.
•Optional voice scrambler is turned OFF.
•Scramble code is not set correctly.
•Turn the optional voice scrambler ON.
•Reset the scramble code.
p. 10
p. 16
25
CHANNEL LIST
10
• International channels
Frequency (MHz)
Frequency (MHz)
Frequency (MHz)
Frequency (MHz)
Frequency (MHz)
Frequency (MHz)
CH
CH
CH
CH
CH
CH
Transmit Receive
Transmit Receive
Transmit Receive
Transmit Receive
Transmit Receive
Transmit Receive
01 156.050 160.650
02 156.100 160.700
03 156.150 160.750
04 156.200 160.800
05 156.250 160.850 15† 156.750 156.750
06 156.300 156.300 16 156.800 156.800
07 156.350 160.950 17† 156.850 156.850
11 156.550 156.550
12 156.600 156.600
13 156.650 156.650
14 156.700 156.700
21 157.050 161.650
22 157.100 161.700
23 157.150 161.750
24 157.200 161.800
25 157.250 161.850
26 157.300 161.900
27 157.350 161.950
28 157.400 162.000
62 156.125 160.725
63 156.175 160.775
64 156.225 160.825
65 156.275 160.875 75† 156.775 156.775
66 156.325 160.925 76† 156.825 156.825
72 156.625 156.625
73 156.675 156.675
74 156.725 156.725
82 157.125 161.725
83 157.175 161.775
84 157.225 161.825
85 157.275 161.875
86 157.325 161.925
87 157.375 157.375
88 157.425 157.425
67 156.375 156.375
68 156.425 156.425
69 156.475 156.475
77 156.875 156.875
78 156.925 161.525
79 156.975 161.575
80 157.025 161.625
81 157.075 161.675
08 156.400 156.400
09 156.450 156.450
10 156.500 156.500
18 156.900 161.500
19 156.950 161.550
20 157.000 161.600
60 156.025 160.625 70‡ 156.525 156.525
61 156.075 160.675
71 156.575 156.575
• USA channels (for U.K. version only)
Frequency (MHz)
Frequency (MHz)
Frequency (MHz)
CH
Frequency (MHz)
CH
Frequency (MHz)
CH
Frequency (MHz)
CH
CH
CH
Transmit Receive
Transmit Receive
Transmit Receive
Transmit Receive
Transmit Receive
Transmit Receive
01A 156.050 156.050
-- - - - - - -
03A 156.150 156.150
-- - - - - - -
05A 156.250 156.250
12 156.600 156.600 22A 157.100 157.100 64A 156.225 156.225
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
77 156.875 156.875
86 157.325 161.925
14 156.700 156.700
15† 156.750 156.750
16 156.800 156.800
24 157.200 161.800 66A 156.325 156.325 79A 156.975 156.975
25 157.250 161.850 67† 156.375 156.375 80A 157.025 157.025 87A 157.375 157.375
87 157.375 161.975
26 157.300 161.900
27 157.350 161.950
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
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
71 156.575 156.575 84 157.225 161.825
72 156.625 156.625 84A 157.225 157.225
73 156.675 156.675 85 157.275 161.875
74 156.725 156.725 85A 157.275 157.275
08 156.400 156.400 19A 156.950 156.950 37A 157.850 157.850
09 156.450 156.450 20 157.000 161.600 61A 156.075 156.075
10 156.500 156.500 20A 157.000 157.000 -- - - - - - -
11 156.550 156.550 21A 157.050 157.050 63A 156.175 156.175
†Low power only.
‡Receive only.
26
SPECIFICATIONS AND OPTIONS
11
I Specifications
I Options
•DS-100 (#02) DSC CONTROLLER
•GENERAL
•Frequency coverage
Transmit
:
When the DS-100 is installed, the transceiver conforms to
DSC Class D for marine digital communications.
156.000–161.450 MHz
156.000–163.425 MHz
Receive
•MB-75 FLUSH MOUNT
For mounting the transceiver to a panel.
•Mode
•Channel spacing
•Current drain (at 13.8 V)
: FM (16K0G3E)
: 25 kHz
: TX high
6.0 A max.
1.5 A max.
•HM-134 REMOTE-CONTROL MICROPHONE
Max. audio
External microphone-type controller. Provides optional inter-
com operation. 6 m (20 feet) microphone cable and mount-
ing base included. Black color is available.
•Power supply requirement
•Frequency stability
•Dimensions
: 13.8 V DC (10.8 to 15.6 V)
: 10 ppm (–20°C to +60°C)
: 165(W)×110(H)×109.4(D) mm
(Projection not included)
•Weight
•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)
: 1130 g
•TRANSMITTER
•Output power
•Modulation system
: 25 W and 1 W
: Variable reactance phase
modulation
•SP-5 EXTERNAL SPEAKER (IC-M503 ONLY)
A large, external speaker for superior audio output.
•Max. frequency deviation
•Spurious emissions
:
5.0 kHz
: Less than 0.25 µW
•SP-10 EXTERNAL SPEAKER (IC-M503 ONLY)
A compact, external speaker. Features easy installation.
•RECEIVER
•Receive system
•Sensitivity (20 dB SINAD)
•Squelch sensitivity
:
Double conversion superheterodyne
•UT-98 VOICE SCRAMBLER UNIT
: Less than –3dBµ EMF (typical)
: Less than 0dBµ EMF
•UT-112 VOICE SCRAMBLER UNIT
Ensures private communications. 128 or 32 codes are
available. Not available in some countries.
•
•
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
:
2 W at 10% distortion with a 4 Ω load
2 W at 10% distortion with a 8 Ω load
All stated specifications are subject to change without notice or
obligation.
HM-134
27
OPTIONAL
HM-134 REMOTE-CONTROL MICROPHONE
12
q POWER SWITCH [PWR] (pgs. 8, 33)
I Panel description
When the IC-M503 power is turned ON, push and hold for
2 sec. to turn the HM-134 power ON or OFF.
The optional HM-134 remotely controls the IC-M503 and pro-
vides an optional intercom function.
w PTT SWITCH [PTT] (pgs. 8, 33)
Push and hold to transmit; release to receive.
!
o
q
w
e CHANNEL UP/DOWN SWITCHES [Y]/[Z]
➥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 ad-
just audio level or noise squelch level, respectively. (pgs.
8, 33)
i
MONI
L
DIM
SQL
VOL
u
y
e
r
IC
DUAL
DIAL
C
➥In set mode, changes setting of the selected item. (pgs.
9, 37)
t
➥During scanning, checks tag channels or changes scan-
ning 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
28
HM-134 REMOTE-CONTROL MICROPHONE
12
microphone key lock function is turned ON.
➥Enter set mode when pushed and held while turning
➥Advances the cursor while in memory name program-
power ON. (pgs. 14, 37)
ming condition. (pgs. 9, 38)
t DIAL SWITCH [DIAL]
i VOLUME/DIMMER SWITCH [VOL•DIM]
➥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.
➥After pushing [VOL], [Y]/[Z] adjusts the audio level.
➥Push and hold [VOL•DIM] for 1 sec. to adjust the bright-
ness of the LCD and switch backlight. (p. 34)
➥Moves the cursor backward while in memory name pro-
gramming condition. (pgs. 9, 38)
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 func-
tion. (pgs. 17, 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.
➥Push to stop dualwatch or tri-watch when either is acti-
vated.
➥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)
! SCAN SWITCH [SCAN•TAG] (pgs. 13, 36)
➥Starts and stops normal or priority scan when tag chan-
nels are programmed.
➥Push and hold [SQL•MONI] for 1 sec. to turn the monitor
function ON. (p. 34)
➥Push and hold [SCAN•TAG] for 1 sec. to set the dis-
played channel as a tag (scanned) channel.
➥While pushing and holding [H/L], push and hold for 3
sec. to clear all tag channels.
➥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
29
HM-134 REMOTE-CONTROL MICROPHONE
12
! EXTERNAL SPEAKER JACK
I Function display
➥Connect the external speaker (an 8 Ω load). The internal
speaker can be deactivated via the Set mode program-
ming. (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.
TX BUSY TAG CALL LOW
WAIT
USA
INT
L
DUP DUAL
P SCAN TRI
q
w
!
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 connec-
tion mold with water resistant tape increases the water-
proofing of the connection mold.
o
i
e
r
t
VOL
SQL
SCRM
u
y
External SP jack
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)
Connection mold
30
HM-134 REMOTE-CONTROL MICROPHONE
12
➥In set mode, indicates the selected condition. (pgs. 14,
Appears when low power is selected.
37)
! CALL CHANNEL INDICATOR (pgs. 6, 32)
r VOLUME INDICATOR (p. 33)
Appears when the call channel is selected.
Appears while audio output level is adjusted.
! DUPLEX INDICATOR (pgs. 6, 32)
t SQUELCH INDICATOR (p. 33)
Appears when a duplex channel is selected.
Appears while noise squelch level is adjusted.
! TAG CHANNEL INDICATOR (pgs. 13, 36)
y CHANNEL NAME INDICATOR
➥Channel comment appears (and scrolls) if programmed.
(pgs. 9, 38)
Appears when a tag channel is selected.
! BUSY INDICATOR (pgs. 8, 33, 34)
Appears when receiving a signal or when the squelch
opens.
➥In set mode, indicates or scrolls the selected set mode
item. (pgs. 14, 37)
! TRANSMIT INDICATOR (pgs. 8, 33)
u SCRAMBLER INDICATOR (pgs. 10, 35)
Appears while transmitting.
Appears when an optional voice scrambler is activated.
! “WAIT” INDICATOR
i SCAN INDICATOR (pgs. 13, 36)
➥“SCAN” appears during normal scan.
➥“P SCAN” appears during priority scan.
“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 prior-
ity.
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)
! DUAL/TRI WATCH INDICATOR (pgs. 11, 36)
“DUAL” appears during dualwatch;“TRI” during tri-watch.
! LOW POWER INDICATOR (pgs. 8, 33)
31
HM-134 REMOTE-CONTROL MICROPHONE
12
I Channel selection
ï
ï
Channel 16
U.S.A. and International channels
q Push [16•C] to select Channel
q Push [DIAL] to select regular channel.
w While pushing and holding [H/L], push [DIAL] to select
channel group.
16.
w Push [DIAL] to return to the con-
dition before selecting Channel
16, or push [Y] or [Z] to select
operating channel.
•U.S.A. or International can be selected in sequence.
•Output power turns to “25W” auto-
matically, whenever Channel 16 is
selected.
ï
Call channel
U.S.A. channels
q Push and hold [16•C] for 1 sec.
to select call channel.
then push DIAL
Push and hold
w Push [DIAL] to return to the con-
dition before selecting call chan-
nel, or push [Y] or [Z] to select
operating channel.
International channels
32
HM-134 REMOTE-CONTROL MICROPHONE
12
I 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.
t Push and hold [PTT] to transmit, then speak into the mi-
crophone.
•“ ” appears.
•Channel 70 cannot be used for transmission (for GMDSS use).
•When receiving a signal, “
from the speaker.
” appears and audio is emitted
y Release [PTT] to receive.
IMPORTANT: To maximize the readability of your trans-
mitted 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.
•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.
r Set output power
q Turn power ON
t Push to
w Set volume
transmit
y Release
to receive
w Set squelch,
if required
e Set channel
t Speak into
microphone
33
HM-134 REMOTE-CONTROL MICROPHONE
12
I Lock functions
I Display backlighting
The lock function electronically locks keys and switches to
prevent accidental changes and function access from the mi-
crophone.
The function display and switches can be backlit for better
visibility under low light conditions. And the backlighting con-
dition can be adjusted independently from the transceiver.
•All keys, switches and controllers on the transceiver are functional.
q Push and hold [VOL•DIM] for 1 sec. to enter backlight ad-
justing mode.
ï
Activating the lock
function
•“
” with number of backlight level appears in the channel name
indicator.
➥While pushing and holding
[H/L], push [SQL] to turn the
lock function ON and OFF.
•“ ” appears.
w Push [Y]/[Z] to adjust the backlight level.
•The backlight level is adjustable between 0 (lights OFF) and 3
(brightest).
•Only [PWR], [PTT], [H/L],
[SQL•MONI], [VOL]+[Y]/[Z] and
[SQL]+[Y]/[Z] are functional.
Appears when the lock
function is in use.
I 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 mon-
itor function.
ï
Activating the all key
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.
•“
” flashes and audio is emitted.
•Any key, except [Y]/[Z], cancels the monitor function.
Flashes when the all lock
function is in use.
•Only [PWR] and [PTT] are func-
tional.
34
HM-134 REMOTE-CONTROL MICROPHONE
12
I 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.
I Optional voice scrambler
operation
ï
Activating the scrambler
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.
w Push and hold [16•C] for 1 sec. to
select the call channel of the se-
lected channel group.
•“SCRM” appears.
•“CALL” and call channel number ap-
pear.
e To turn the scrambler func-
tion OFF, repeat step w.
Appears when the voice
scrambler function is in use.
•“SCRM” disappears.
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.
ï
Programming scramble codes
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.
t Push [16•C] to program the dis-
played channel as the call channel.
•The call channel number and channel
group stop flashing.
35
HM-134 REMOTE-CONTROL MICROPHONE
12
I Starting a scan
q While pushing and holding [H/L],
push [DIAL] several times to select
the channel group (USA or INT), if
desired.
I Setting tag
I Dualwatch/Tri-
watch operation
q Push [Y]/[Z] to select the desired
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.
channel.
•While pushing and holding [H/L], push
[DIAL] several times to select the chan-
nel group (USA, INT), if desired.
w Push [DUAL] to start dualwatch or
tri-watch.
w Push [SCAN] to start priority or nor-
mal scan.
•“SCAN” appears during normal scan.
•The priority channel readout indicates
“16”, and “P” and “SCAN” indicators ap-
pear 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 moni-
tored during priority scan).
•“DUAL” appears during dualwatch; “TRI”
appears during tri-watch.
•Beep tone sounds when a signal is re-
ceived on Channel 16.
•“
” appears.
r To cancel the tag channel setting,
push and hold [SCAN•TAG] for
1 sec.
•Tri-watch becomes dualwatch when re-
ceiving a signal on the call channel.
e To cancel dualwatch/tri-watch, push
[DIAL] again.
•“
” disappears.
•Push [Y]/[Z] to check the scanning tag
channels, to change the scanning direc-
tion or resume the scan manually.
e To stop the scan, push [SCAN].
•“SCAN” disappears.
•Clearing all tag channels in the
selected channel group
➥While pushing and holding [H/L],
push [SCAN•TAG] for 3 sec. to clear-
ing all tag channels. (until long beep
changes to 2 short beeps)
•Pushing [PTT], [16•C] or [DIAL] also
stops the scan.
36
HM-134 REMOTE-CONTROL MICROPHONE
12
•Beep tone “BEEP”
➥Push [Y] to turn ON, [Z] to turn OFF the beep output.
I Set mode programming
Set mode is used to change the condition of the transceiver’s
functions and the microphone’s own functions:
Push
Transceiver’s functions—
Scan mode (normal or priority), scan resume timer, dual-
watch/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.
•LCD contrast “LCD CONTRAST”
➥Push [Y]/[Z] to adjust to a suitable LCD contrast.
In this section, instructions are for the microphone’s own func-
tions only. Refer to pgs. 14–16 for the setting of the other
functions. (Some functions may not be selectable from the mi-
crophone.)
• •
Push
• •
ï
Entering set mode
•Internal speaker “INT-SPEAKER”
➥Push [Y]/[Z] to turn the HM-134 internal-speaker ON/OFF.
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 indi-
cator 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.
Push
37
HM-134 REMOTE-CONTROL MICROPHONE
12
I Intercom operation
I Channel names
q Push and hold [DUAL] for 1 sec.
to activate the intercom function.
•“IC” appears in the priority channel
readout.
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.
•The channel name disappears.
w Push [PTT] to talk.
Appears when the inter-
com function is in use.
•“
” appears in the channel
r Push [SQL] to move to right; then push [Y]/[Z] to select a
character.
name indicator.
e Release [PTT] to listen.
•Push [VOL] to move to the left.
•“
” appears in the channel name indicator when the trans-
t Continue until the desired characters have been selected,
then push [16•C] to return to normal operation.
ceiver is in talking mode.
r Push [DUAL] to cancel the intercom function.
•Pushing [16], [SCAN•TAG] or [DIAL] is also cancels the intercom
function.
•Available characters
(space)
(✱)
(4)
(!)
(+)
(5)
(F)
(P)
(Z)
(j)
(")
(#)
(–)
(7)
(H)
(R)
(b)
(l)
($)
(.)
(
%
)
(&)
(0)
(A)
(K)
(U)
(e)
(o)
(y)
(’)
(1)
(B)
(L)
(V)
(f)
(()
(2)
(C)
(M)
())
(3)
(D)
(N)
(X)
(h)
(r)
For your reference:
(,)
(/)
In case the intercom mode is selected with the transceiver
during microphone power OFF, the microphone power is au-
tomatically turned ON and the intercom mode is selected.
(6)
(G)
(Q)
(a)
(k)
(u)
(8)
(I)
(9)
(J)
(T)
(d)
(n)
(x)
(E)
(O)
(Y)
(i)
(S)
(c)
(m)
(w)
(W)
(g)
(q)
ï
Intercom beep function
➥Push and hold [DIAL] for more than 1 sec.
•Emits intercom beep while holding.
(p)
(z)
(s)
(t)
(v)
38
HM-134 CONNECTIONS AND INSTALLATION
13
I HM-134 supplied accessories
I Installation
Accessories included with the HM-134:
Qty.
The optional HM-134 can be connected to the transceiver di-
rectly, as well as via the supplied connection cable for longer
distance remote operation. The connector of the connection
cable can be installed into a cabinet, wall, etc., as a built-in
plug.
q Connection cable (OPC-1000: 6 m; 20 ft) ...................... 1
w Mounting base ................................................................ 1
e Microphone hanger ........................................................ 1
r Screws (M3 × 16; tapping) ............................................. 5
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
HM-134 CONNECTIONS AND INSTALLATION
13
w To use the supplied cable as a wall socket, see the follow-
ing steps.
y The installation is completed.
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.
Mounting base
Nut
Gasket
Screw holes
(approx. 2 (d) mm; 3⁄32″)
Cap
40
HM-134 CONNECTIONS AND INSTALLATION
13
Mounting base
5 mm; 3⁄16˝
2 mm; 3⁄32˝ x 3
2 mm; 3⁄32˝
Nut
Gasket
Cap
24 to 27 (d) mm
(15⁄16 to 11⁄16˝)
41
MB-75 TEMPLATE
149 (57⁄8˝)
MB-75
4–R11
2 mm; 3⁄32˝
HM-134
24 to 27 (d) mm
(15⁄16 to 11⁄16˝)
Unit: mm (inch)
INSTALLATION NOTES
I Installation notes
In all cases any possible risk depends on the transmitter
being activated for long periods. (actual recommendation lim-
its are specified as an average of 6 minutes) Normally the
transmitter is not active for long periods of time. Some radio li-
censes will require that a timer circuit automatically cuts the
transmitter after 1–2 minutes etc.
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 op-
erated for long periods if any person is within 5 meters of the
antenna, nor operated at all if any person is touching the an-
tenna.
Similarly some types of transmitter, SSB, CW, AM, etc. have a
lower ‘average’ output power and the perceived risk is even
lower.
DECLARATION
OF CONFORMITY
We Icom Inc. Japan
1-1-32 Kamiminami, Hirano-ku,
Osaka 547-0003 Japan
0560
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.
Düsseldorf 25th Sept. 2001
Place and date of issue
Kind of equipment: VHF MARINE TRANSCEIVER
Icom (Europe) GmbH
Himmelgeister straße 100
D-40225 Düsseldorf
Type-designation: iC-m503
Version (where applicable):
Authorized representative name
This compliance is based on conformity with the following harmonised
standards, specifications or documents:
T. Maebayashi
General Manager
i)
EN 301 025-1
V1.1.2 (2000-08)
V1.1.1 (2000-08)
V1.1.1 (2001-05)
V1.1.2 (2000-12)
V1.1.1 (2001-05)
1997
ii) EN 301 025-2
iii) EN 301 025-3
iv) EN 300 162-2
v) EN 300 162-3
vi) EN 60945
Signature
vii) EN 60950
1992
viii) EN 300 698-2
V1.1.1 ( 2000-8)
Count on us!
< Intended Country of Use >
GER
AUT
GBR
IRL
FRA
NED
BEL
LUX
ESP
POR
ITA
SWE
DEN
FIN
GRE
SUI
A-6097D-1EU-q
Printed in Japan
© 2001 Icom Inc.
1-1-32 Kamiminami, Hirano-ku, Osaka 547-0003 Japan
CHANNEL LIST
10
• International channels
Frequency (MHz)
Frequency (MHz)
Frequency (MHz)
Frequency (MHz)
Frequency (MHz)
Frequency (MHz)
CH
CH
CH
CH
CH
CH
Transmit Receive
Transmit Receive
Transmit Receive
Transmit Receive
Transmit Receive
Transmit Receive
01 156.050 160.650
02 156.100 160.700
03 156.150 160.750
04 156.200 160.800
05 156.250 160.850 15† 156.750 156.750
06 156.300 156.300 16 156.800 156.800
07 156.350 160.950 17† 156.850 156.850
11 156.550 156.550
12 156.600 156.600
13 156.650 156.650
14 156.700 156.700
21 157.050 161.650
22 157.100 161.700
23 157.150 161.750
24 157.200 161.800
25 157.250 161.850
26 157.300 161.900
27 157.350 161.950
28 157.400 162.000
62 156.125 160.725
63 156.175 160.775
64 156.225 160.825
65 156.275 160.875 75† 156.775 156.775
66 156.325 160.925 76† 156.825 156.825
72 156.625 156.625
73 156.675 156.675
74 156.725 156.725
82 157.125 161.725
83 157.175 161.775
84 157.225 161.825
85 157.275 161.875
86 157.325 161.925
87 157.375 157.375
88 157.425 157.425
67 156.375 156.375
68 156.425 156.425
69 156.475 156.475
77 156.875 156.875
78 156.925 161.525
79 156.975 161.575
80 157.025 161.625
81 157.075 161.675
08 156.400 156.400
09 156.450 156.450
10 156.500 156.500
18 156.900 161.500
19 156.950 161.550
20 157.000 161.600
60 156.025 160.625 70‡ 156.525 156.525
61 156.075 160.675
71 156.575 156.575
• USA channels (for U.K. version only)
Frequency (MHz)
Frequency (MHz)
Frequency (MHz)
CH
Frequency (MHz)
CH
Frequency (MHz)
CH
Frequency (MHz)
CH
CH
CH
Transmit Receive
Transmit Receive
Transmit Receive
Transmit Receive
Transmit Receive
Transmit Receive
01A 156.050 156.050
-- - - - - - -
03A 156.150 156.150
-- - - - - - -
05A 156.250 156.250
12 156.600 156.600 22A 157.100 157.100 64A 156.225 156.225
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
77 156.875 156.875
86 157.325 161.925
14 156.700 156.700
15† 156.750 156.750
16 156.800 156.800
24 157.200 161.800 66A 156.325 156.325 79A 156.975 156.975
25 157.250 161.850 67† 156.375 156.375 80A 157.025 157.025 87A 157.375 157.375
87 157.375 161.975
26 157.300 161.900
27 157.350 161.950
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
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
71 156.575 156.575 84 157.225 161.825
72 156.625 156.625 84A 157.225 157.225
73 156.675 156.675 85 157.275 161.875
74 156.725 156.725 85A 157.275 157.275
08 156.400 156.400 19A 156.950 156.950 37A 157.850 157.850
09 156.450 156.450 20 157.000 161.600 61A 156.075 156.075
10 156.500 156.500 20A 157.000 157.000 -- - - - - - -
11 156.550 156.550 21A 157.050 157.050 63A 156.175 156.175
†Low power only.
‡Receive only.
AA
|