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 .................... 6–10
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 ................. 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
CONNECTIONS AND
MAINTENANCE ......................... 17–22
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 Battery” appears when the battery voltage drops
to approx. 10 V DC or below.
o
i
➥“DUAL” appears during dualwatch; “TRI” appears 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)
➥“BUSY” appears when receiving a signal or when the
squelch opens.
➥“TX” appears 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.
➥“25W” appears when high power is selected.
➥“1W” appears 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
•“CALL” and 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.
•“INT” appears when International channels are selected.
e Rotate the channel selector to select a channel.
•“DUP” appears 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
•“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 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, “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 [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 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 [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 flashing.
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 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 except channel 16 and 70.
w While pushing [HI/LO], push [DIMMER] to toggle an op-
tional scrambler function ON or OFF.
•“SC” appears.
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.
•“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
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.
•
“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 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 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.
•“TAG” appears in the function display.
r To cancel the tag channel setting, repeat e.
•“TAG” disappears.
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 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: 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-watch’ for 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 ‘Options’ on 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 vessel’s 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 flat surface such as an instrument panel.
CAUTION: KEEP the transceiver and microphone at
least 1 meter away from your vessel’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 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 23⁄32˝)
31.4
53.0
165.0 (6 1⁄2˝)
(1 1⁄4˝) (2 3⁄32˝)
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.
•“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
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 Specifications
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.
:
156.025–157.425 MHz
156.025–162.025 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 specifications are subject to change without notice or
obligation.
25
Blank page
MB-75 TEMPLATE
149 (57/8˝)
4–R11
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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