Icom Stereo System IC M501EURO User Manual

INSTRUCTION MANUAL  
VHF MARINE TRANSCEIVER  
iM501EURO  
 
INSTALLATION NOTES  
The installation of this equipment should be  
made in such a manner as to respect the EC  
recommended electromagnetic field expo-  
sure limits (1999/519/EC).  
accessible) level. In the case where an an-  
tenna 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.  
(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 transmit-  
ter after 1–2 minutes etc.  
The maximum RF power available from this  
device is 25 watts. The antenna should be  
installed as high as possible for maximum ef-  
ficiency and that this installation height  
should be at least 5 meters above ground (or  
Similarly some types of transmitter, SSB,  
CW, AM, etc. have a lower ‘average’ output  
power and the perceived risk is even lower.  
In all cases any possible risk depends on the  
transmitter being activated for long periods.  
TABLE OF CONTENTS  
1
2
OPERATING RULES .......................... 1  
PANEL DESCRIPTION .................. 2–5  
I Panel description ............................. 2  
I Function display ............................... 4  
I Microphone ...................................... 5  
BASIC OPERATION .................... 610  
I Channel selection ............................ 6  
I Receiving and transmitting .............. 8  
I Call channel programming ............... 9  
I Channel names ................................ 9  
I Operation ....................................... 11  
I Cleaning ......................................... 17  
I Connections ................................... 18  
I Mounting the transceiver ............... 19  
I Optional unit installation ................. 21  
I Dimensions..................................... 20  
TROUBLESHOOTING ...................... 23  
CHANNEL LIST ................................ 24  
5
SCAN OPERATIONS ................. 1213  
I Scan types ..................................... 12  
I Setting tag channels ...................... 13  
I Starting a scan ............................... 13  
SET MODE ................................. 1416  
I Set mode programming ................. 14  
I Set mode items .............................. 15  
CONNECTIONS AND  
MAINTENANCE ......................... 1722  
I Unpacking ...................................... 17  
I Antenna ......................................... 17  
I Fuse replacement .......................... 17  
8
9
3
4
6
7
10 SPECIFICATIONS AND OPTIONS ... 25  
I Specifications ................................. 25  
I Options .......................................... 25  
I
Optional voice scrambler operation .. 10  
MB-75 TEMPLATE  
DUALWATCH/TRI-WATCH ............... 11  
I Description ..................................... 11  
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-M501EURO.  
CAUTIONS  
DO NOT use or place the transceiver in areas with temper-  
atures below –4°F (–20°C) or above +140°F (+60°C) or, in  
areas subject to direct sunlight, such as the dashboard.  
RWARNING! NEVER connect the transceiver to an AC  
outlet. This may pose a fire hazard or result in an electric  
shock.  
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 16 V DC or using reverse polarity. This will ruin the trans-  
ceiver.  
BE CAREFUL! The transceiver rear panel will become  
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.  
hot when operating continuously for long periods.  
Place the transceiver in a secure place to avoid inadvertent  
use by children.  
NEVER place the transceiver where normal operation of the  
vehicle may be hindered or where it could cause bodily injury.  
After exposure to water including fresh water, clean the trans-  
ceiver thoroughly with fresh water to avoid corrosion.  
KEEP the transceiver at least 3.3 ft (1 m) away from the  
ship’s navigation compass.  
iii  
 
OPERATING RULES  
1
(2) OPERATOR’S LICENSE  
PRIORITIES  
A Restricted Radiotelephone Operator Permit is the license  
most often held by small vessel 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.  
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.  
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  
craft’s identification for radio purposes.  
1
 
PANEL DESCRIPTION  
2
I Panel description  
!
!
o
i
VHF MARINE  
iM501EURO  
Function  
display  
16  
WATER RESISTANT  
Speaker  
SCAN  
TAG  
DUAL  
DIAL  
CALL  
q
HI/LO  
DIMMER  
POWER  
VOL  
SQL  
w
e
r
t
y
u
q POWER SWITCH [POWER]  
r TRANSMIT POWER SWITCH [HI/LO]  
Toggles high and low power when pushed. (p. 8)  
Some channels are set to low power only.  
While pushing this switch, other switches perform sec-  
ondary functions.  
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)  
2
 
PANEL DESCRIPTION  
2
t CHANNEL SELECTOR [CHANNEL]  
Rotate [CHANNEL] to select the operating channels, set  
mode contents, etc. (p. 8)  
! SCAN SWITCH [SCAN/TAG] (p. 13)  
Starts and stops normal or priority scan when tag chan-  
nels are programmed.  
Push [SCAN/TAG] for 1 sec. to set the displayed chan-  
nel as a tag (scanned) channel.  
While pushing [HI/LO], push for 3 sec. to clear all tag  
channels.  
y DIMMER SWITCH [DIMMER]  
Push to select one of 8 backlighting (LCD and switches)  
levels.  
u CALL CHANNEL SWITCH [CALL]  
Push to select the call channel. (p. 6)  
Push for 3 sec. to enter call channel programming con-  
dition. (p. 9)  
! DUALWATCH/TRI-WATCH SWITCH [DUAL] (p. 11)  
Starts dualwatch or tri-watch when pushed.  
Stops dualwatch/tri-watch when either is activated.  
While pushing [HI/LO], enters memory name program-  
ming condition. (p. 9)  
i CHANNEL 16 SWITCH [16]  
Selects channel 16 when pushed. (p. 6)  
Enters initial set mode when pushed while turning power  
ON. (p. 14)  
o DIAL SWITCH [DIAL]  
Exits from channel 16 or call channel when pushed. (p.  
6)  
While pushing [HI/LO], selects channel group when  
pushed. (pgs. 6, 7)  
The European version has International channels only and  
this function is not available.  
3
 
PANEL DESCRIPTION  
2
r CHANNEL NAME INDICATOR  
I Function display  
Channel comment appears if programmed. (p. 9)  
Low Batteryappears when the battery voltage drops  
to approx. 10 V DC or below.  
o
i
DUALappears during dualwatch; TRIappears dur-  
ing tri-watch. (p. 11)  
q
w
e
r
BUSY  
25W  
INT  
CALL  
t SCRAMBLER INDICATOR (p. 11)  
u
TAG SC DUP  
CALLING  
Appears when the optional voice scrambler is activated.  
y DUPLEX INDICATOR  
Appears when a duplex channel is selected.  
t y  
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. (p. 14)  
q BUSY/TRANSMIT INDICATOR (p. 8)  
BUSYappears when receiving a signal or when the  
squelch opens.  
TXappears while transmitting.  
i CHANNEL GROUP INDICATOR (p. 6)  
Indicates whether an International, U.S.A., Holland, DSC  
or ATIS channel is selected.  
w POWER INDICATOR (p. 8)  
Available channel groups depend on version.  
25Wappears when high power is selected.  
1Wappears when low power is selected.  
o CALL CHANNEL INDICATOR (pgs. 6, 9)  
Appears when a call channel is selected.  
e TAG CHANNEL INDICATOR (p. 13)  
Appears when a tag 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.  
Toggles the [Y]/[Z] and [HI/LO] switch functions ON and  
OFF when pushed at power ON.  
5
 
BASIC OPERATION  
3
Push [CALL] to select the call channel of the selected  
channel group.  
I Channel selection  
CALLand call channel number appear.  
Each channel group may have an independent call channel after  
changing a call channel. (U.K. version only)  
Channel 16  
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.  
Push [DIAL] to return to the condition before selecting call  
channel, or rotate [CHANNEL] to select operating channel.  
INT  
Push [16] to select channel 16.  
25W  
CALL  
CALL  
Push  
Push [DIAL] to return to the condition before selecting  
channel 16, or rotate [CHANNEL] to select operating chan-  
nel.  
TAG  
CALLING  
INT  
25W  
International channels  
There are 55 International channels for the IC-M501EURO.  
16  
Push  
TAG  
CALLING  
q Push [DIAL] to select a regular channel.  
w Push [DIAL] while pushing [HI/LO] to change the channel  
group, if necessary.  
INTappears when International channels are selected.  
e Rotate the channel selector to select a channel.  
DUPappears for duplex channels.  
Call channel  
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.  
INT  
25W  
TAG  
DUP  
INTL  
6
 
BASIC OPERATION  
3
U.S.A. channels (U.K. version only)  
For the U.K. versions, there are 61 U.S.A. channels in addi-  
tion to 56 International channels.  
HOLLAND  
DUP  
1W  
INTL  
q Push [DIAL] to select a regular channel.  
w To change the channel group, push [DIAL] while pushing  
[HI/LO].  
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.  
ATIS and DSC channels (FRG version only)  
For the FRG versions, there are 55 ATIS and 52 DSC chan-  
nels in addition to 57 International channels.  
q Push [DIAL] to select a regular channel.  
w To change the channel group, push [DIAL] while pushing  
[HI/LO].  
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.  
Holland channels (Holland version only)  
For the holland versions, there are 57 Holland channels in ad-  
dition to 56 International channels.  
ATIS  
25W  
TAG  
DUP  
q Push [DIAL] to select a regular channel.  
w To change the channel group, push [DIAL] while pushing  
[HI/LO].  
INTL  
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  
TXappears.  
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 10 to 15 cm (4 to 6 inches) 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 To change the channel group, push [DIAL] while pushing  
[HI/LO]. (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  
iM501EURO  
When receiving a signal, BUSYappears 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.  
25Wor 1Wappears 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 [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 [CALL] for 3 sec. to enter the call channel program-  
ming 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 [HI/LO], push [CALL] to edit memory chan-  
nel name.  
Channel number starts ashing.  
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 [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  
names, if desired.  
Push [DIAL] to cancel.  
The channel number stops ashing.  
9
 
BASIC OPERATION  
3
I Optional voice scrambler operation  
Activating the scrambler  
Programming scrambler codes  
The optional voice scrambler provides private communica-  
tions. In order to receive or send scrambled transmissions  
you must rst 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 except channel 16 and 70.  
w While pushing [HI/LO], push [DIMMER] to toggle an op-  
tional scrambler function ON or OFF.  
SCappears.  
q Turn power OFF.  
w While pushing [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.  
SCdisappears.  
Scrambler codeappears.  
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  
 
DUAL WATCH/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.  
DUALappears during dualwatch; TRIappears 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 efcient 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 digital communication use.  
Choose priority or normal scan in set mode. (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
I Setting tag channels  
I Starting a scan  
For more efficient scanning, add desired channels as tag  
channels or clear tag channels for unwanted channels. Chan-  
nels set as non-tag channels will be skipped during scanning.  
Tag channels can be assigned to each channel group (Inter-  
national, U.S.A., Holland, DSC, ATIS) independently.  
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 [HI/LO], push [DIAL] one or more times to  
select the desired channel group, if desired.  
q While pushing [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 [SCAN/TAG] for 1 sec. to set the displayed channel  
as a tag channel.  
e Push [SCAN] to start priority or normal scan.  
Pri scan 16or Normal scanappears 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.  
TAGappears in the function display.  
r To cancel the tag channel setting, repeat e.  
TAGdisappears.  
r To stop the scan, push [SCAN].  
Clearing all tag channels in the selected channel group  
While pushing [HI/LO], push [DIAL] for 3 sec. to clear all  
tag channels in the channel group.  
Pri scanor Normal scandisappears.  
[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-  
ceivers functions: beep tone function, scan mode (normal/pri-  
ority), scan resume timer, dual/tri watch, LCD contrast, scram-  
ble code, scrambler unit, internal speaker and ATIS code.  
q Turn power OFF.  
w While pushing [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 versions.  
y Turn power OFF, then ON again to exit set mode.  
SET MODE CONSTRUCTION  
Beep tone  
Scan mode  
Scan resume timer  
Dual/tri watch  
Beep  
Scan mode  
Scan timer  
DUAL/TRI  
ATIS check  
16  
Push  
ATIS check  
LCD contrast  
Scrambler unit  
Scrambler code  
Internal speaker  
LCD  
contrast  
Scrambler  
Scrambler  
code  
Internal  
speaker  
14  
 
SET MODE  
6
Scan resume timer  
I Set mode items  
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.  
Beep tone  
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  
Set mode  
Beep  
Scan timer  
Scan timer ON (default)  
Scan timer OFF  
Beep tone ON (default)  
Beep tone OFF  
Dual/tri watch  
Scan mode  
This item sets the [DUAL] switch function as dual watch or tri-  
watch.  
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.  
See the section Dual watch/Tri-watchfor details.  
Set mode  
DUAL/TRI  
Set mode  
Scan mode  
Dual watch (default)  
Tri-watch  
Priority scan (default)  
Normal scan  
15  
 
SET MODE  
6
LCD contrast  
This item adjusts the contrast of the LCD in 8 steps.  
Set mode  
Scrambler  
code  
Set mode  
LCD  
Scrambler code 0 (UT-98 default)  
Scrambler code 127  
contrast  
LCD contrast 4 (default)  
Scrambler unit  
When an optional scrambler unit is connected, the scrambler  
unit can be selected in set mode depending on dealer setting.  
Internal speaker  
When an optional external speaker is connected, the speak-  
ers on the transceiver and microphone can be muted.  
Set mode  
Scrambler  
Set mode  
Internal  
speaker  
UT-98 scrambler unit  
UT-112 scrambler unit  
Internal speaker ON (default)  
Internal speaker OFF  
ATIS check  
The ATIS ID code can be checked in set mode.  
Scrambler code  
When an optional scrambler unit is connected, the scrambler  
code can be set depending on dealer setting.  
Set mode  
ATIS check  
0123456789  
When the UT-98 or UT-112 is installed, 128 or 32 codes (0 to  
127 or 1 to 32) can be selected, respectively.  
ATIS code  
16  
 
CONNECTIONS AND MAINTENANCE  
7
I Unpacking  
I Antenna  
The following accessories are supplied:  
Qty.  
A key element in the performance of any communication sys-  
q Mounting bracket ............................................................ 1  
w Microphone hanger (OPC-562) ...................................... 1  
e Mic hanger screws (3.5 × 30) ......................................... 2  
r Mounting screws (5 × 20) ............................................... 2  
t Flat washers (M5) ........................................................... 2  
y Spring washers (M5) ...................................................... 2  
u Mounting bracket knobs ................................................. 2  
i DC power cable (OPC-947) ........................................... 1  
tem is an antenna. Ask your dealer about antennas and the  
best places to mount them.  
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.  
q
w
e
r
Fuse rating: 10 A  
I Cleaning  
If the transceiver becomes dusty or dirty, wipe it clean with a  
soft, dry cloth.  
t
y
i
u
AVOID the use of solvents such as benzene or al-  
cohol, as they may damage transceiver surfaces.  
17  
 
CONNECTIONS AND MAINTENANCE  
7
w EXTENSION JACK  
I Connections  
Connects to optional DS-100 DSC CONTROLLER.  
e ANTENNA CONNECTOR  
r
e
Connects a marine VHF antenna with a PL-259 connector  
to the transceiver.  
q
CAUTION: Transmitting without an antenna may dam-  
age the transceiver.  
r EXTERNAL SPEAKER JACK  
w
Connects to an external speaker. See Optionson p. 25  
for available external speakers.  
MICROPHONE HANGER  
Rest the supplied microphone on the hanger when not in  
use.  
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.  
18  
 
CONNECTIONS AND MAINTENANCE  
7
OVERHEAD MOUNTING  
I Mounting the transceiver  
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 supplied screws  
(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 vessels magnetic navigation  
compass.  
MOUNTING ON DASHBOARD  
NOTE: Check the installation angle; the function display  
may not be easy-to-read at some angles.  
19  
 
CONNECTIONS AND MAINTENANCE  
7
r Attach the clamps on either side of the transceiver.  
Make sure that the clamps align parallel to the transceiver body.  
Using the optional mounting bracket  
An optional MB-75 FLUSH MOUNT is available for mounting  
the transceiver to a at surface such as an instrument panel.  
CAUTION: KEEP the transceiver and microphone at  
least 1 meter away from your vessels 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 supplied bolts (M5 × 8 mm) on either side of  
the IC-M501EURO.  
20  
 
CONNECTIONS AND MAINTENANCE  
7
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 J6 on the MAIN unit as shown  
below.  
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.  
21  
 
CONNECTIONS AND MAINTENANCE  
7
I Dimensions  
145.0 (5 2332˝)  
31.4  
53.0  
165.0 (6 12˝)  
(1 14˝) (2 332˝)  
Unit: mm (inch)  
22  
 
TROUBLESHOOTING  
8
PROBLEM  
POSSIBLE CAUSE  
SOLUTION  
REF.  
No power comes ON.  
Bad connection to the power supply.  
Check the connection to the transceiver.  
p. 18  
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, 24  
p. 8  
not be selected.  
The output power is set to low.  
Push [HI/LO] to select high power.  
Scan does not start.  
TAGchannel is not programmed.  
Set the desired channels as TAGchan-  
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  
23  
 
CHANNEL LIST  
9
International channels  
Frequency (MHz)  
Frequency (MHz)  
Frequency (MHz)  
Transmit Receive  
Frequency (MHz)  
Transmit Receive  
Frequency (MHz)  
Transmit Receive  
Frequency (MHz)  
Transmit Receive  
CH  
CH  
CH  
CH  
CH  
CH  
Transmit Receive  
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 84 157.225 161.825  
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 85 157.275 161.875  
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 86 157.325 161.925  
04 156.200 160.800 14 156.700 156.700 24 157.200 161.800 65 156.275 160.875 77 156.875 156.875 87 157.375 161.975  
15†  
05 156.250 160.850  
06 156.300 156.300 16 156.800 156.800 26 157.300 161.900 67 156.375 156.375 79 156.975 161.575  
07 156.350 160.950 156.850 156.850 27 157.350 161.950 68 156.425 156.425 80 157.025 161.625  
08 156.400 156.400 18 156.900 161.500 28 157.400 162.000 69 156.475 156.475 81 157.075 161.675  
09 156.450 156.450 19 156.950 161.550 60 156.025 160.625 156.525 156.525 82 157.125 161.725  
156.750 156.750 25 157.250 161.850 66 156.325 160.925 78 156.925 161.525 88 157.425 162.025  
17†  
70‡  
10 156.500 156.500 20 157.000 161.600 61 156.075 160.675 71 156.575 156.575 83 157.175 161.775  
U.S.A. channels (for U.K. version only)  
Frequency (MHz)  
Frequency (MHz)  
Frequency (MHz)  
Transmit Receive  
Frequency (MHz)  
Transmit Receive  
Frequency (MHz)  
Transmit Receive  
Frequency (MHz)  
Transmit Receive  
CH  
CH  
CH  
CH  
CH  
CH  
Transmit Receive  
Transmit Receive  
01A 156.050 156.050 11 156.550 156.550 20A 157.000 157.000 61A 156.075 156.075 71 156.575 156.575 83A 157.175 157.175  
02A 156.100 156.100 12 156.600 156.600 21A 157.050 157.050 62A 156.125 156.125 72 156.625 156.625 84 157.225 161.825  
13†  
15‡  
17†  
03A 156.150 156.150  
04A 156.200 156.200 14 156.700 156.700 23A 157.150 157.150 64A 156.225 156.225 74 156.725 156.725 86 157.325 161.925  
05A 156.250 156.250 156.750 156.750 24 157.200 161.800 65A 156.275 156.275 77 156.875 156.875 86A 157.325 157.325  
06 156.300 156.300 16 156.800 156.800 25 157.250 161.850 66A 156.325 156.325 78A 156.925 156.925 87 157.375 161.975  
07A 156.350 156.350 156.850 156.850 26 157.300 161.900 156.375 156.375 79A 156.975 156.975 88 157.425 162.025  
156.650 156.650 22A 157.100 157.100 63A 156.175 156.175 73 156.675 156.675 85 157.275 161.875  
67†  
08 156.400 156.400 18A 156.900 156.900 27 157.350 161.950 68 156.425 156.425 80A 157.025 157.025 88A 157.425 157.425  
09 156.450 156.450 19A 156.950 156.950 28 157.400 162.000 69 156.475 156.475 81A 157.075 157.075  
70‡  
10 156.500 156.500 20 157.000 161.600 60A 156.025 156.025  
156.525 156.525 82A 157.125 157.125  
Low power only for U.K. version.  
Receive only.  
24  
 
SPECIFICATIONS AND OPTIONS  
10  
I Specications  
I Options  
GENERAL  
Frequency coverage  
Transmit  
DS-100 DSC CONTROLLER  
When the DS-100 is installed, the transceiver conforms to  
DSC class D for marine digital communications.  
:
156.025157.425 MHz  
156.025162.025 MHz  
Receive  
Mode  
Channel spacing  
Current drain (at 13.8 V)  
: FM (16K0G3E)  
: 25 kHz  
: TX high  
Max. audio  
: 13.8 V DC  
: 10 ppm  
MB-75 FLUSH MOUNT  
For mounting the transceiver to a panel.  
6.0 A max.  
1.2 A max.  
SP-5 EXTERNAL SPEAKER  
A large, external speaker for superior audio output.  
Power supply requirement  
Frequency stability  
(20°C to +60°C; 4°F to +140°F)  
: 165(W)×110(H)×109.4(D) mm  
SP-10 EXTERNAL SPEAKER  
A compact, external speaker. Features easy installation.  
Dimensions  
(Projection not included)  
Weight  
: 1130 g  
UT-98 VOICE SCRAMBLER UNIT  
UT-112 VOICE SCRAMBLER UNIT  
Ensures private communications. 128 or 32 codes are avail-  
able. Not available in some countries.  
TRANSMITTER  
Output power  
Modulation system  
: 25 W and 1 W  
: Variable reactance phase  
modulation  
Max. frequency deviation  
Spurious emissions  
:
5.0 kHz  
: Less than 0.25 µW  
RECEIVER  
Receive system  
:
Double conversion superheterodyne  
Sensitivity (12 dB SINAD)  
Squelch sensitivity  
: Less than 0.32 µV (typical)  
: Less than 0.32 µV  
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 : 3.5 W at 10% distortion with a 4 Ω  
load  
All stated specications are subject to change without notice or  
obligation.  
25  
 
Blank page  
 
MB-75 TEMPLATE  
149 (57/8˝)  
4R11  
Unit: mm (inch)  
 
Blank page  
 
DECLARATION  
OF CONFORMITY  
We Icom Inc. Japan  
1-1-32 Kamiminami, Hirano-ku,  
Osaka 547-0003 Japan  
0560  
Declare on our sole responsability that this equipment complies 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 11th Oct. 2000  
Place and date of issue  
Kind of equipment: VHF MARINE TRANSCEIVER  
Icom (Europe) GmbH  
Himmelgeister straße 100  
D-40225 Düsseldorf  
Type-designation:  
iC-m501euro  
Version (where applicable):  
Authorized representative name  
This compliances is based on conformity with the following harmonised  
standards, specifications or documents:  
i) EN301 025-2  
ii) prEN300 162-2 v1.1.1  
iii) EN60945  
v1.1.1  
08/2000  
07/2000  
1997  
Icom (Europe) GmbH  
iv) EN60950  
v) ETS300 698  
vi) prEN300 698-2 v1.1.1  
1992  
1997 Annex B  
03/2000  
T. Aoki  
General Manager  
Signature  
 
Count on us!  
< Intended Country of Use >  
GER NED ITA  
AUT BEL GRE  
GBR LUX SWE  
IRL ESP DEN  
FRA POR FIN  
A-5661H-1EU-e  
Printed in Japan  
© 2000 Icom Inc.  
1-1-32 Kamiminami, Hirano-ku, Osaka 547-0003 Japan  
 

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