ICOM orporated 290500 VHF Marine Transceiver User Manual Manual

ICOM Incorporated VHF Marine Transceiver Manual

Manual

INSTRUCTION MANUAL
iM72
VHF MARINE TRANSCEIVER
This device complies with Part 15 of the FCC
Rules. Operation is subject to the condition that
this device does not cause harmful interference.
New2001
IC-M72_0.qxd 05.11.21 18:46 Page A (1,1)
i
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SAFETY TRAINING INFORMATION
Your Icom radio generates RF electromagnetic energy during
transmit mode.
This radio has been evaluated for compliance at the distance
of 2.5 cm with the FCC RF exposure limits for “Occupational
Use Only”. In addition, your Icom radio complies with the fol-
lowing Standards and Guidelines with regard to RF energy
and electromagnetic energy levels and evaluation of such lev-
els for exposure to humans:
• FCC OET Bulletin 65 Edition 97-01 Supplement C, Evaluating Compliance
with FCC Guidelines for Human Exposure to Radio Frequency Electro-
magnetic Fields.
• American National Standards Institute (C95.1-1992), IEEE Standard for
Safety Levels with Respect to Human Exposure to Radio Frequency Elec-
tromagnetic Fields, 3 kHz to 300 GHz.
• American National Standards Institute (C95.3-1992), IEEE Recommended
Practice for the Measurement of Potentially Hazardous Electromagnetic
Fields– RF and Microwave.
• The following accessories are authorized for use with this product. Use of
accessories other than those specified may result in RF exposure levels
exceeding the FCC requirements for wireless RF exposure.; Belt Clip (MB-
86, MB-103), Rechargeable Li-Ion Battery Pack (BP-245), Speaker-micro-
phone (HM-125), Headset with headset adapter (HS-94, HS-95, HS-97
with OPC-1392).
To ensure that your expose to RF electromagnetic en-
ergy is within the FCC allowable limits for occupational
use, always adhere to the following guidelines:
CAUTION
WARNING
• DO NOT operate the radio without a proper antenna attached, as this may
damaged the radio and may to exceed FCC RF exposure limits. A proper
antenna is the antenna supplied with this radio by the manufacturer or an
antenna specifically authorized by the manufacturer for use with this radio.
• DO NOT transmit for more than 50% of total radio use time (“50% duty
cycle”). Transmitting more than 50% of the time can cause FCC RF expo-
sure compliance requirements to be exceeded. The radio is transmitting
when the “TX indicator” lights. You can cause the radio to transmit by
pressing the “PTT” switch.
• ALWAYS keep the antenna at least 2.5 cm (1 inch) away from the body
when transmitting and only use the Icom belt-clips which are listed on
page 33 when attaching the radio to your belt, etc., to ensure FCC RF ex-
posure compliance requirements are not exceeded. To provide the recipi-
ents of your transmission the best sound quality, hold the radio in an
almost vertical position at least 5 cm (2 inches) from your mouth, the mi-
crophone is located next to the speaker, so you should “talk into the
speaker”.
The information listed above provides the user with the information needed to
make him or her aware of RF exposure, and what to do to assure that this radio
operates within FCC RF exposure limits.
Electromagnetic Interference/Compatibility
During transmissions, your Icom radio generates RF energy that can possibly
cause interference with other devices or systems. To avoid such interference,
turn off the radio in areas where signs are posted to do so. DO NOT operate
the transmitter in areas that are sensitive to electromagnetic radiation such as
hospitals, aircraft, and blasting sites.
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ii
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IN CASE OF EMERGENCY
If your vessel requires assistance, contact other vessels and
the Coast Guard by sending a distress call on Channel 16.
❍USING CHANNEL 16
DISTRESS CALL PROCEDURE
1. “MAYDAY MAYDAY MAYDAY.”
2. “THIS IS ...........................” (name of vessel)
3. Your call sign or other indication of the ves-
sel.
4. “LOCATED AT .....................” (your position)
5. The nature of the distress and assistance re-
quired.
6. Any other information which might facilitate
the rescue.
RECOMMENDATION
CLEAN THE TRANSCEIVER THOROUGHLY WITH FRESH
WATER after exposure to saltwater, and dry it before opera-
tion. Otherwise, the transceiver’s keys, switches and con-
trollers may become inoperable due to salt crystallization.
DO NOT wash the transceiver in water if there is any reason to
suspect the waterproofing may not be effective. For example, in
cases where the battery pack rubber seal is damaged, the trans-
ceiver/battery pack is cracked or broken, or has been dropped,
or when the battery pack is detached from the transceiver.
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FOREWORD
Thank you for purchasing this Icom radio. The IC-M72
VHF MA
-
RINE TRANSCEIVER
is designed and built with Icom’s state of the
art technology and craftsmanship. With proper care this prod-
uct should provide you with years of trouble-free operation.
IMPORTANT
READ ALL INSTRUCTIONS carefully and com-
pletely before using the transceiver.
SAVE THIS INSTRUCTION MANUAL—This in-
struction manual contains important operating instructions for
the IC-M72.
EXPLICIT DEFINITIONS
FEATURES
☞Submersible construction
Built tough to withstand the punishing marine environ-
ment, the IC-M72’s submersible construction meets IPX8
of the corresponding International Standard IEC 60529
(2001) while using BP-245.
In addition, the new speaker grill structure with the water
draining function is helpful for draining water or seawater
easily.
☞Dualwatch and tri-watch functions
Convenient functions which allow you to monitor the dis-
tress channel (Ch 16) while receiving one other channel of
your choice (dualwatch), or while receiving one other chan-
nel of your choice and the call channel (Ch 09) (tri-watch).
See p. 16 for details.
☞Large, easy-to-read LCD
With dimensions of 22.5(H) ×31.5(W) mm; 7⁄8(H) ×11⁄4(W)
inch, the IC-M72’s function display is easy to read and
shows operating conditions at a glance. Backlighting and
contrast can be adjusted to suit your preferences.
☞Simple operation
6 large buttons on the front panel provide user-friendly op-
eration. The independent volume and channel buttons are
located on the front panel for convenient one-handed op-
eration.
iii
New2001
WORD DEFINITION
RWARNING
CAUTION
NOTE
Personal injury, fire hazard or electric shock
may occur.
If disregarded, inconvenience only. No risk
of personal injury, fire or electric shock.
Equipment damage may occur.
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iv
PRECAUTION
RWARNING! NEVER connect the transceiver to an
AC outlet. This may pose a fire hazard or result in an electric
shock.
RWARNING! NEVER hold the transceiver so that the
antenna is closer than 2.5 cm (1 inch) from exposed parts of
the body, especially the face or eyes, while transmitting. The
transceiver will perform best if the microphone is 5 to 10 cm (2
to 4 inches) away from the lips and the transceiver is vertical.
NEVER connect the transceiver to a power source other
than the BP-245. Such a connection will ruin the transceiver.
AVOID using or placing the transceiver in direct sunlight or
in areas with temperatures below –20°C (–4°F) or above
+60°C (+140°F).
KEEP the transceiver out of the reach of children.
KEEP the transceiver at least 0.9 meters (3.0 ft) away from
your vessel’s magnetic navigation compass.
MAKE SURE the flexible antenna and battery pack are
securely attached to the transceiver, and that the antenna and
battery pack are dry before attachment. Exposing the inside
of the transceiver to water will result in serious damage to the
transceiver.
BE CAREFUL! The IC-M72 employs submersible con-
struction (1.5 m; 4.5 ft depth for 30 min.). However, once the
transceiver has been dropped, waterproofing cannot be guar-
anteed due to the fact that the transceiver may be cracked,
or the waterproof seal damaged, etc.
For the U.S.A. only
CAUTION: Changes or modifications to this device, not
expressly approved by Icom Inc., could void your authority to
operate this device under FCC regulations.
New2001
Icom, Icom Inc. and the logo are registered trademarks of Icom Incor-
porated (Japan) in the United States, the United Kingdom, Germany, France,
Spain, Russia and/or other countries.
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SAFETY TRAINING INFORMATION ............................................... i
IN CASE OF EMERGENCY ........................................................... ii
RECOMMENDATION ...................................................................... ii
FOREWORD .................................................................................. iii
IMPORTANT ................................................................................... iii
EXPLICIT DEFINITIONS ................................................................ iii
FEATURES ..................................................................................... iii
PRECAUTION ................................................................................ iv
TABLE OF CONTENTS .................................................................. v
1 OPERATING RULES ................................................................. 1
2 SUPPLIED ACCESSORIES AND ATTACHMENTS ............... 2–3
■Supplied accessories............................................................... 2
■Attachments............................................................................. 2
3 PANEL DESCRIPTION .......................................................... 4–6
■Front, top and side panels ....................................................... 4
■Function display ...................................................................... 5
4 BASIC OPERATION ............................................................ 7–12
■Channel selection ................................................................... 7
■Receiving and transmitting ...................................................... 9
■Call channel programming .................................................... 10
■Lock function ......................................................................... 10
■Monitor function .................................................................... 10
■Adjusting the squelch level .................................................... 11
■Backlighting function ............................................................. 11
■Voice scrambler operation ..................................................... 11
■VOX function ......................................................................... 12
■Water draining function ......................................................... 12
■Comment programming ........................................................ 12
5 SCAN OPERATION ........................................................... 14–15
■Scan types ............................................................................ 14
■Setting TAG channels ........................................................... 15
■Starting a scan ...................................................................... 15
6 DUALWATCH/TRI-WATCH ...................................................... 16
■Description ............................................................................ 16
■Operation .............................................................................. 16
7 SET MODE ......................................................................... 17–22
■SET mode programming ....................................................... 17
■SET mode items ................................................................... 18
8 BATTERY CHARGING ....................................................... 23–27
■Battery cautions .................................................................... 23
■Supplied battery charger ....................................................... 25
■Optional battery chargers ...................................................... 26
9 OPTIONAL SWIVEL BELT CLIP ............................................. 28
■Attachment ............................................................................ 28
■Detachment ........................................................................... 28
10 OPTIONAL SPEAKER-MICROPHONE ................................... 29
■HM-125 descriptions ............................................................. 29
■Attachment ............................................................................ 29
11 TROUBLESHOOTING ............................................................. 30
12 VHF MARINE CHANNEL LIST ................................................ 31
13 SPECIFICATIONS .................................................................... 32
14 OPTIONS ................................................................................. 33
TABLE OF CONTENTS
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1
OPERATING RULES
DPriorities
• Read all rules and regulations pertaining to priorities and
keep an up-to-date copy handy. Safety and distress calls
take priority over all others.
• You must monitor Channel 16 when you are not operating
on another channel.
• False or fraudulent distress calls are prohibited under law.
DPrivacy
• Information overheard but not intended for you cannot law-
fully be used in any way.
• Indecent or profane language is prohibited.
DRadio licenses
(1) SHIP STATION LICENSE
When your craft is equipped with a VHF FM transceiver, 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. This license in-
cludes the call sign which is your craft’s identification for radio
purposes.
(2) OPERATOR’S LICENSE
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.
The Restricted Radiotelephone Operator Permit must be
posted near the transceiver or be kept with the operator. Only
a licensed radio operator may operate a transceiver.
However, non-licensed individuals may talk over a transceiver
if a licensed operator starts, supervises, ends the call and
makes the necessary log entries.
A current copy of the applicable government rules and regu-
lations is only required to be on hand for vessels in which a
radio telephone is compulsory. However, even if you are not
required to have these on hand it is your responsibility to be
thoroughly acquainted with all pertinent rules and regulations.
NOTE: Even though the IC-M72 is capable of operation
on VHF marine channels 3, 21, 23, 61, 64, 81, 82 and 83,
according to FCC regulations these simplex channels can-
not be lawfully used by the general occupational in USA
waters.
1
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2
SUPPLIED ACCESSORIES AND ATTACHMENTS
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2
■Supplied accessories
The following accessories are supplied: Qty.
qHandstrap …………………………………………………… 1
wBattery charger …………………………………………… 1
eScrews for the battery charger (M3.5×30) ………………… 2
rBelt clip (with screws) ……………………………………… 1
tAC adapter ………………………………………………… 1
yLi-Ion battery pack ………………………………………… 1
uFlexible antenna …………………………………………… 1
■Attachments
DFlexible antenna
Connect the supplied flexible an-
tenna to the antenna connector.
CAUTION: Transmitting without
an antenna may damage the
transceiver.
NEVER HOLD by the antenna
when carrying the transceiver.
DHandstrap
Pass the handstrap through the
loop on the top of the transceiver
as illustrated at left.
Facilitates carrying.
qw e
r
ty
u
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3
2
SUPPLIED ACCESSORIES AND ATTACHMENTS
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DBattery pack
qAttach the battery pack into the transceiver as below.
wLock the battery pack with the latch.
CAUTION!:
NEVER attach or detach the battery pack in wet condition.
Be careful when release the latch. Because of the latch is
tightly locked, you may injured if finger nail is used. Use a
an instrument, such as flat head screw driver, to release
the latch is recommended.
DBelt clip
Attach the belt clip to the transceiver as illustrated below.
Supplied screws
2
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4
PANEL DESCRIPTION
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3
■Front, top and side panels
qVOLUME CONTROL [VOL]
Turns power ON and adjusts the audio level.
wPTT SWITCH [PTT]
Push and hold to transmit; release to receive.
eMONITOR KEY [ ]
• Manually opens the squelch for monitoring the channel
while pushed and held. (p. 10)
• Push this switch, then adjust the squelch level with
[YY]/[ZZ]. (p. 11)
• While pushing and holding this switch, turn power ON to
enter the set mode. (p. 17)
rCHANNEL UP/DOWN KEYS [YY]/[ZZ]
• Selects an operating channel. (pgs. 7–9)
• Selects the SET mode condition of the item. (p. 17)
• Selects the SET mode item when pushed with [].
(p. 17)
• Checks TAG channels or changes scanning direction dur-
ing scan. (p. 15)
tCHANNEL 16 KEY [16•9]
• Selects Channel 16 when pushed. (p. 7)
• Selects call channel when pushed for 1 sec. (p. 7)
• Enters call channel write mode when the call channel is
selected and this key is pushed and held for 3 sec. (p. 10)
q
w
e
r
t
Microphone
!0
o
i
u
y
Speaker
Function
display
(p. 5)
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5
3
PANEL DESCRIPTION
New2001
yTRANSMIT POWER/LOCK KEY [H/L•LOCK]
• Selects high, middle or low power when pushed. (p. 9)
• Toggles the lock function ON/OFF when pushed and held
for 1 sec. (p. 10)
uSCAN KEY [SCAN•DUAL]
• Starts and stops normal or priority scan when pushed.
(pgs. 14, 15)
• Enters watch mode when pushed and held for 1 sec.
(p. 16)
iCHANNEL/WEATHER CHANNEL KEY [CH/WX•U/I/C]
• Selects and toggles the regular channels and weather
channel when pushed. (p. 8)
• Selects one of 3 regular channels in sequence when
pushed and held for 1 sec. (p. 8)
- U.S.A., International and Canadian* channels are avail-
able. *Available with the USA versions only.
• Push to return to the condition before selecting the chan-
nel when the priority channel or the call channel is se-
lected.
oSPEAKER-MICROPHONE CONNECTOR [SP MIC]
Connects the optional external speaker-microphone or
headset.
NOTE: Attach the [SP MIC] cap when the optional
speaker-microphone or headset is not used.
!0 ANTENNA CONNECTOR
Connects the supplied antenna.
■Function display
qCHANNEL NUMBER READOUT
• Indicates the selected operating channel number.
• In SET mode, indicates the selected condition.
• “DUP” appears when a duplex channel is selected.
wTAG CHANNEL INDICATOR (p. 15)
Appears when TAG channel is selected.
eBATTERY INDICATOR
Indicates remaining battery power.
Indication
Full Middle Charging
required No battery
Battery level
blinks when the battery is over charged.
q
we
r
t
yu
i
o
!0
!1
!2
!3
!4
!5
3
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6
3PANEL DESCRIPTION
New2001
rMONITOR INDICATOR (p. 10)
Appears when the monitor function is activated.
tDUALWATCH/TRI-WATCH INDICATORS (p. 16)
“DUAL” blinks during dualwatch; “TRI” blinks during tri-
watch.
yVOX INDICATOR (p. 12)
Appears when the VOX function is used.
uSCRAMBLER INDICATOR (pgs. 11, 22)
Appears when the voice scrambler is activated.
*The voice scrambler function is available with some versions
only.
iCOMMENT INDICATOR
• Indicates or scrolls operating channel comment, etc.
(p. 13)
• In SET mode, indicates or scrolls the selected item.
(pgs. 17–22)
oLOCK INDICATOR (p. 10)
Appears when the lock function is activated.
!0 CALL CHANNEL INDICATOR (p. 7)
Appears when the call channel is selected.
!1 CHANNEL GROUP INDICATOR (p. 8)
“USA” appears when U.S.A.; “INT” appears when Interna-
tional; “CAN*” appears when Canadian channel group is
selected.
*Available with the USA versions only.
!2 WEATHER CHANNEL/WEATHER ALERT INDICATORS
(p. 8)
• “WX” appears when the weather channel group is
selected.
• “WX ALT” appears when the weather alert function is
activated.
!3 TRANSMIT POWER INDICATORS (p. 9)
• “LOW” appears when low power is selected.
• “MID” appears when middle power is selected.
• No indication appears when high power is selected.
!4 TRANSMIT INDICATOR (p. 9)
Appears during transmit.
!5 BUSY INDICATOR (pgs. 9, 10)
Appears when a signal is received or squelch is open.
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7
4
BASIC OPERATION
3
4
■Channel selection
IMPORTANT!: Prior to using the transceiver for the first
time, the battery pack must be fully charged for optimum
life and operation. To avoid damage to the transceiver, turn
the power OFF while charging.
DChannel 16
Channel 16 (Distress channel) is used for establishing initial
contact with another station and for emergency communica-
tions. Channel 16 is automatically monitored during both
dualwatch and tri-watch. While standing by, you must monitor
Channel 16.
qPush [16•9] to select Channel 16.
wPush [CH/WX•U/I/C] to return to the condition before se-
lecting Channel 16, or push [YY]/[ZZ]to select the operating
channel.
DChannel 9 (Call channel)
Channel 9 is the leisure-use call channel. Each regular
channel group has separate call channels. In addition, the call
channel is monitored during tri-watch. The call channels can
be re-programmed (p. 10) and may be used to store your most
often used channels in each channel group for quick recall.
qPush and hold [16•9] for 1 sec. to select the call channel.
•“CALL” and the call channel number appear.
•Call channel can be re-programmed. See the “Call channel
programming” on p. 10 for details.
wPush [CH/WX•U/I/C] to return to the condition before se-
lecting Channel 9 (call channel), or push [YY]/[ZZ]to select
the operating channel.
Push
for 1 sec.
Push
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DU.S.A., International and Canadian channels
The IC-M72 has 57 U.S.A., 57 International and 61 Cana-
dian* channels. You must select the proper channels for the
operating area. *Available with the USA versions only.
qPush [CH/WX•U/I/C] to select the regular channel.
•If the weather channel appears, push [CH/WX•U/I/C] again.
wPush [YY]/[ZZ]to select a channel.
•“DUP” appears for duplex channels.
eTo change the channel group, push and hold
[CH/WX•U/I/C] for 1 sec.
•U.S.A., International and Canadian channels can be selected in
sequence.
DWeather channels
The IC-M72 has 10 weather channels. They are used for
monitoring NOAA (National Oceanographic and Atmospheric Ad-
ministration) broadcasts (reception of weather channels possible in
U.S.A. only).
qPush [CH/WX•U/I/C] to select the weather channel group.
wPush [YY]/[ZZ]to select a weather channel.
ePush [CH/WX•U/I/C] to return to the condition before se-
lecting the weather channel group.
✔
CONVENIENT!
The IC-M72 can detect a weather alert tone on the
selected weather channel while in another channel (when the
power save function is turned ON) or during scanning. See the
“SET mode items” on p. 18 for details.
Push
Push for 1 sec.
U.S.A. channel
International channel Canadian channel
8
4BASIC OPERATION
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4
BASIC OPERATION
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4
■Receiving and transmitting
qRotate [VOL] clockwise to turn power ON.
•Opening comment scrolls. (p. 13)
•Push [16•9] to skip the opening comment indication.
wSet the volume and squelch level.
➥Push [], and push [ZZ]to open the squelch.
➥Rotate [VOL] to set the volume level.
➥Push [], and push [YY]/[ZZ]to set the squelch level.
ePush [YY]/[ZZ]to select the desired channel.
- When receiving a signal, “” indicator appears while audio is
emitted from the speaker.
- Further adjustment of [VOL] may be necessary at this point.
rPush [H/L•LOCK] to select the output power if necessary.
- “LOW” appears when low power is selected; “MID” appears
when middle power is selected; no indication when high power is
selected.
- Choose low power to conserve battery power, choose high
power for longer distance communications.
- Some channels are for low power only.
tPush and hold [PTT] to transmit, then speak into the mi-
crophone.
- The transmit indicator appears while transmitting.
- Channel 70 cannot be used for transmission.
yRelease [PTT] to receive.
IMPORTANT: To maximize the readability of your trans-
mitted signal, pause a few sec. after pushing [PTT], hold
the microphone 5 to 10 cm (2 to 4 inches) from your mouth
and speak into the microphone at a normal voice level.
NOTE: The transceiver has a power save function to con-
serve the battery power. The power save function activates
automatically when no signal is received for 5 sec.
To prevent accidental prolonged transmission, etc., the IC-
M72 has a time-out timer function. This timer cuts a trans-
mission OFF after 5 min. of continuous transmission.
Microphone
Speaker
r Set output power
t Push to transmit
y Release to receive q Power ON
w Set volume
w Set the squelch
level
w Set the squelch
level
e Select the
channel
CAUTION: Transmitting without an antenna may
damage the transceiver.
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4BASIC OPERATION
New2001
■Call channel programming
The call channel key is used to select Channel 9 by default,
however, you can program your most often-used channel in
each channel group for quick recall.
qPush and hold [CH/WX•U/I/C] for 1 sec. to several times to
select the desired channel group (USA, INT, CAN) to be pro-
grammed.
wPush and hold [16•9] for 1 sec. to se-
lect the call channel.
•“CALL” and call channel number appear.
ePush and hold [16•9] again for 3 sec.
(until a long beep changes to 2 short
beeps) to enter call channel program-
ming condition.
•Call channel number to be programmed
blinks.
rPush [YY]/[ZZ]to select the desired
channel.
tPush [16•9] to program the displayed
channel as the call channel.
•The call channel number stops blinking.
■Lock function
This function electronically locks all keys (except for [PTT], [
]and [H/L•LOCK])to prevent accidental channel changes and
function access.
➥Push [H/L•LOCK] for 1 sec. to turn the lock function ON
and OFF.
■Monitor function
The monitor function releases the noise squelch mute to
check the volume level. See p. 19 for details of the monitor
switch action.
➥Push and hold []for 1 sec. to activate the monitor func-
tion.
•“ ” and “” appear and audio is emitted.
Push
for 1 sec.
Appears while the
monitor function is
in use.
Push
for 1 sec.
Appears while the lock
function is in use.
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11
4
BASIC OPERATION
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4
■Adjusting the squelch level
To adjust the IC-M72’s squelch level, use the [YY]/[ZZ]keys as
desired below. In order to receive signals properly, as well as
for the scan to function effectively, the squelch must be ad-
justed to the proper level.
qPush [], then adjust the squelch level with [YY]/[ZZ].
- “SQL” and the squelch level are displayed.
- There are 11 squelch levels to choose from: OP is completely
open; 10 is tight squelch; 1 is loose squelch level.
- When no key is pushed for 5 sec., the transceiver returns to
normal condition.
wPush []again to return to normal condition.
■Backlighting function
This function is convenient for nighttime operation. The back-
lighting can be turned OFF in the SET mode. (p. 19)
➥Push any key other than [PTT] to turn the backlighting ON.
•The backlighting is automatically turned OFF after 5 sec. of
inactivity.
■Voice scrambler operation
(available with some versions only)
DActivating the scrambler
The voice scrambler provides private communications. In
order to receive or send scrambled transmissions, you must
activate the scrambler function first.
qSelect an operating channel other than Channel 16, 70 or
weather channels.
wWhile pushing and
holding [], push
[SCAN•DUAL].
•“SCRM” appears.
eTo turn the scrambler
function OFF, repeat
step w.
•“SCRM” disappears.
DProgramming scramble codes
There are 32 codes (1 to 32) available for programming. Set
the code in the SET mode. In order to understand each other,
all transceivers in your group must have the same scramble
code, as well as the same scrambler unit. See p. 22 for
“Scrambler code” setting details.
Push Shows the squelch
level.
Appears during squelch
level adjustment
Appears when the voice scrambler
function is in use.
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12
4BASIC OPERATION
New2001
■VOX function
The VOX function (voice operated transmission) starts transmis-
sion without pushing [PTT] when you speak into microphone;
then automatically returns to receive when you stop speak-
ing (hands-free operation becomes possible).
➥Push and hold [], then push [H/L•LOCK] to turn the
VOX function ON/OFF while connecting the headset and
optional headset adapter to [SP MIC] connector.
• “VOX” appears on the LCD while the VOX function turns ON.
•
The VOX gain and VOX delay can be set on the SET mode. (p. 22)
•During scan, dual/tri-watch or on a transmission inhibited chan-
nel, the VOX function will not be activated.
■Water draining function
IC-M72 is employs a new water draining support system for
driving out water that has built up in the speaker housing. A vi-
brating noise occurs when this function is being used. This
new feature keeps the speaker and speaker housing free
from water and grit build up for crisp, clear audio all the time.
➥Push and hold both [16•9] and [H/L•LOCK].
•A low beep tone sounds for 9 sec. to drain water, regardless of
[VOL] control setting.
•The transceiver never accepts a key operation while the water
draining function is activated. And this function won’t be activated
when an optional speaker-microphone or headset is connected.
■Comment programming
The IC-M72 has a capability to assign up to 10-character
channel comments for each operating channel including the
weather channel. This provides easy recognition of channel
usage, or station names, etc.
When shipped from the factory, the IC-M72 is programmed
with default comments for each VHF marine channel. These
defaults can be overwritten if desired.
In addition, up to 16-character user-programmable opening
comments are also available.
DDAvailable characters
(=)
(4)
(D)
(N)
(X)
(h)
(r)
(✱)
(5)
(E)
(O)
(Y)
(i)
(s)
(+)
(6)
(F)
(P)
(Z)
(j)
(t)
(7)
(G)
(Q)
(a)
(k)
(u)
(,)
(8)
(H)
(R)
(b)
(l)
(v)
(/)
(9)
(I)
(S)
(c)
(m)
(w)
(0)
(Space)
(J)
(T)
(d)
(n)
(x)
(1)
(A)
(K)
(U)
(e)
(o)
(y)
(2)
(B)
(L)
(V)
(f)
(p)
(z)
(3)
(C)
(M)
(W)
(g)
(q)
(–)
NOTE: An optional headset and optional headset adapter
are required for the VOX operation.
IC-M72_0.qxd 05.11.21 18:46 Page 12 (1,1)
13
4
BASIC OPERATION
New2001
4
DDChannel comment programming
qPush [YY]/[ZZ]to select a channel to
program.
• Push and hold [CH/WX•U/I/C] for 1 sec.
to select a channel group, if necessary.
wWhile pushing and holding [],
push [CH/WX•U/I/C].
• The 1st character of the currently pro-
grammed comment blinks.
ePush [YY]/[ZZ]to select a character.
rPush [H/L•LOCK] to move to the
right; then push [YY]/[ZZ]to select a
character.
• Pushing [16•9], moves to left
tContinue until the desired characters
have been selected, then push
[CH/WX•U/I/C] to return to normal
operation.
DDOpening comment programming
qWhile pushing and holding
[SCAN•DUAL], turn power ON.
• “OC” is displayed and the 1st character
of the currently programmed comment
blinks.
wPush [YY]/[ZZ]to select a character.
ePush [H/L•LOCK] to move to the
right; then push [YY]/[ZZ]to select a
character.
• Pushing [16•9], moves to left
rContinue until the desired characters
have been selected, then push
[CH/WX•U/I/C] to return to normal
operation.
The programmed opening comment is displayed or
scrolled when the transceiver is powered ON.
However, the opening comment indication can be skipped
by pushing [16•9].
IC-M72_0.qxd 05.11.21 18:46 Page 13 (1,1)
14
SCAN OPERATION
New2001
5
■Scan types
Scanning is an efficient way to quickly locate signals over a
wide frequency range. The transceiver has a priority scan set-
ting and normal scan setting.
In addition, the “Weather alert” and “Auto scan” functions are
available for scanning. These functions can be activated si-
multaneously, depending on the settings on the SET mode.
(pgs. 18, 19)
Set the TAG channels (scanned channel) before scanning.
Clear those TAG channels which are not needed or inconve-
niently stop scanning, such as digital communications.
Choose priority or normal scan on the SET mode. (p. 18)
PRIORITY SCAN
Priority scan searches through all TAG channels in sequence
while monitoring Channel 16. When a signal is detected on
Channel 16, scan pauses until the signal disappears; when a
signal is detected on a channel other than Channel 16, scan
becomes dualwatch until the signal disappears.
NORMAL SCAN
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.
IC-M72_0.qxd 05.11.21 18:46 Page 14 (1,1)
15
5
SCAN OPERATION
New2001
5
■Setting TAG channels
For more efficient scanning, add desired channels as TAG
channels or clear the TAG for unwanted channels.
Channels are not tagged will be skipped during scanning.
TAG channels can be assigned to each channel group (USA,
INT, CAN) independently.
qSelect the desired channel to set as a TAG channel.
wPush and hold both [YY]and [ZZ]for 1 sec. to set the dis-
played channel as a TAG channel.
•“ ” appears in the function display.
eTo cancel the TAG channel setting, push and hold both [YY]
and [ZZ]for 1 sec.
•“ ” disappears.
✔Clearing all tagged channels in the selected channel group
While pushing and holding both [YY]and [ZZ], turn power ON
to clear all TAG channels setting in the channel group.
■Starting a scan
Set the weather alert function, priority scan function, scan re-
sume timer and auto scan function in advance, using the SET
mode. (pgs. 18, 19)
qSelect the desired channel group (e.g., USA, CAN, INT) by
pushing [CH/WX•U/I/C] for 1 sec., if desired.
•When the weather alert function is in use, select the desired
weather channel with [CH/WX•U/I/C] and [YY]/[ZZ].
wPush [SCAN•DUAL] to start priority or normal scan.
•“SCAN” blinks in the function display.
•“16” appears on the comment indicator during priority scan.
•When a signal is received, scan pauses until the signal disap-
pears or resumes after pausing 5 sec. according to scan resume
timer setting. (Channel 16 is still monitored during priority scan.)
•Push [YY]/[ZZ]to check the scanning TAG channels, change the
scanning direction or resume the scan manually.
eTo stop the scan, push [SCAN•DUAL].
•“SCAN” disappears.
•Pushing [PTT], [16•9] or [CH/WX•U/I/C] also stops the scan.
[Example]: Starting a normal scan.
Scan starts
“SCAN” indication blinks
Push
for 1 sec.
Push
to stop the scan
When receiving a
signal, “SCAN” indi-
cation blinks and
audio is emitted.
IC-M72_0.qxd 05.11.21 18:46 Page 15 (1,1)
16
DUALWATCH/TRI-WATCH
New2001New2001
6
■Description
Dualwatch monitors Channel 16 while you are receiving
another channel; tri-watch monitors Channel 16 and the call
channel while receiving another channel.
■Operation
qSelect the desired operating channel.
wPush [SCAN•DUAL] for 1 sec. to start dualwatch or tri-
watch (depending on the SET mode setting; p. 19).
•“DUAL” blinks during dualwatch; “TRI” blinks during tri-watch.
•A beep tone sounds when a signal is received on Channel 16.
•Tri-watch becomes dualwatch when receiving a signal on the call
channel.
eTo cancel dualwatch/tri-watch, push [SCAN•DUAL] again.
DUALWATCH/TRI-WATCH SIMULATION
•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].
Dualwatch Tri-watch
Call channel
[Example]: Operating tri-watch on INT channel 07.
Signal is received
on the call channel.
Signal is received
on Channel 16
takes priority.
Tri-watch resumes
after the signal
disappears.
Tri-watch starts.
Push for 1 sec.
IC-M72_0.qxd 05.11.21 18:46 Page 16 (1,1)
17
6
7
7
SET MODE
New2001
■SET mode programming
SET mode is used to change the condition of 18 transceiver
functions: beep tone function, weather alert function, scan
type, scan resume timer, auto scan function, dual/tri-watch
function, monitor key action, backlighting function, LCD con-
trast selection, auto power save function, self check function,
battery voltage indication, squelch sensitivity, scroll type,
scroll speed, scrambler code, VOX gain and VOX delay.
DSET mode operation
qTurn power OFF.
wWhile pushing and holding [], turn power ON to enter
the SET mode.
• “BEEP” (Beep tone function setting) appears.
ePush [], or push []] and [YY]/[ZZ]to select the de-
sired item.
rPush [YY]/[ZZ]to select the desired condition of the item.
tTo exit the SET mode, push [16•9].
DSET MODE ITEMS
Beep tone* Weather alert Scan type Scan resume timer
Auto scan start function
Dual/Tri-watch
Monitor key
action
Display
backlight
LCD
contrast
VOX delay
VOX gain
Voice scrambler
code†
Scroll speed
Power save functionSelf-check functionBattery voltage indicationSquelch sensitivityComment scroll type
: Push [ ], or while pushing and holding [ ], push [Y]
: While pushing and holding [ ], push [Z]
*Starting item
†Availability may differ according to versions.
IC-M72_0.qxd 05.11.21 18:46 Page 17 (1,1)
18
7SET MODE
New2001
■SET mode items
DBeep tone function “”
Selects the key touch beep emission capability from ON, US
and OFF.
•ON : A fixed beep sounds (default)
•US : The preset beeps (e.g. do, re, mi) sound
•OFF: Silent operation
DWeather alert function “”
An NOAA broadcast station transmits a weather alert tone be-
fore any important weather announcements. When the
weather alert function is turned ON, the transceiver detects
the alert, the alert indicator (“WXALT”)blinks and sounds a
beep tone until the transceiver is operated. The previously se-
lected (used) weather channel is checked any time during
standby, or while scanning, when the power save function is
activated.
•“ALT” appears when the function is set ON.
DDPriority scan function “”
The transceiver has 2 scan types— normal (OFF) and priority
(ON) scans. Normal scan searches all TAG channels in the
selected channel group. Priority scan searches all TAG chan-
nels in sequence while monitoring Channel 16.
DScan resume timer “”
The scan resume timer can be set as a pause (OFF) or timer
scan (ON). When OFF is selected, the scan pauses until a
received signal disappears. When ON is selected, the scan
pauses for 5 sec. after receiving a signal and then resumes
even if the signal has been received.
Push
Scan resume timer
OFF (default)
Scan resume timer
ON
Push
Normal scan (default) Priority scan
Push
Weather alert function
OFF (default)
Weather alert function
ON
Push
Beep tone ON (default) Beep tone OFF
IC-M72_0.qxd 05.11.21 18:46 Page 18 (1,1)
19
7
SET MODE
New2001
7
DAuto scan function “”
The Auto scan function starts the desired scan automatically
when no signal is received, and no operation is performed for
30 sec.
DDual/Tri-watch function “”
This item selects dual or tri-watch as desired. See p. 16 for
details.
DMonitor key action “”
The monitor key action cuts off the squelch function tem-
porarily. This key action contains PUSH (Pu) or HOLD (Ho)
settings as shown below.
• Pu (PUSH): After pushing []for 1 sec., the squelch opens and
emits audio. The squelch is held open while continu-
ously pushing and holding []. (default)
• Ho (HOLD): After pushing []for 1 sec., the squelch opens and
emits audio even []is released. To close the
squelch, push any key.
DBacklighting function “”
This function is convenient for nighttime operation. The back-
lighting can be selected from ON and OFF.
• The automatic backlighting turns the backlighting ON when any key
except for [PTT] is pushed.
• The backlighting is automatically turned OFF after 5 sec. of inactiv-
ity.
Push
Backlighting ON
(default)
Backlighting OFF
Push
Push setting (default) Hold setting
Push
Dualwatch (default) Tri-watch
Push
Auto scan OFF (default) Auto scan ON
IC-M72_0.qxd 05.11.21 18:46 Page 19 (1,1)
20
7SET MODE
New2001
DLCD contrast selection “”
The contrast of the LCD can be selected from Hi (default) and
Lo.
DAuto power save function “”
The auto power save function reduces current drain by deac-
tivating the receiver circuit for preset intervals.
• ON : The power save function is turned ON. The power save func-
tion will activate when no signal is received, and no operation
is performed for 5 sec.
• OFF : The power save function is turned OFF.
DSelf check function “”
The self check function checks the transceiver conditions by
itself, and informs you in case a problem is found. Self check
automatically and quickly runs through its diagnostic steps
each time the radio is turned ON. Afterwards, the radio
switches to normal operation mode.
• Temperature : Outside of –35°C to +73°C; –31°F to +163°F
(approx.)
• Connected battery voltage
•Water intrusion
When error messages as shown below are displayed, see
troubleshooting for advice. (p. 30)
Battery voltage error Temperature error Water intrusion
Push
Self check OFF
(default)
Self check ON
Push
Power save ON
(default)
Power save OFF
Push
High contrast (default) Low contrast
IC-M72_0.qxd 05.11.21 18:46 Page 20 (1,1)
21
7
SET MODE
New2001
7
DBattery voltage indicator “”
This function controls display or non-display settings of the
connected battery pack’s voltage when the power is ON.
• The voltage of the connected battery pack is displayed for 2 sec.
after power is turned ON.
DSquelch sensitivity function “”
When this function is turned ON, blocking against noise is im-
proved. Therefore the squelch is not easily affected by noise.
DComment scroll type “”
Selects the channel comment scroll type from 1 and 2.
•1: The first 7 characters are displayed for 1 sec. (approx.) then
scrolls. When the channel comment is 7 character or less, it does
not scroll. (default)
•2: The channel comment scrolls regardless of the number of char-
acters after no comment (blank) is indicated for 1 sec.
DScrolling speed “”
Selects the channel comment scroll speed.
•1: Scrolls 3.33 characters in a second.
•2: Scrolls 2.5 characters in a second.
•3: Scrolls 2 characters in a second.
Push
Scroll speed 1 (default) Scroll speed 3
Push
Scroll type 1 (default) Scroll type 2
Push
Squelch sensitivity
OFF (default)
Squelch sensitivity
ON
Push
Voltage indication
OFF (default)
Voltage indication ON
IC-M72_0.qxd 05.11.21 18:46 Page 21 (1,1)
22
7SET MODE
New2001
DDVoice scrambler code “”
(available with some versions only)
There are 32 codes (1 to 32) available for programming. In
order to understand each other, all transceivers in your group
must share the same scrambler code.
DVOX gain “”
Adjusts the VOX gain level from 1 (low sensitivity) to 6 (high sen-
sitivity) when speaking with the optional headset.
DVOX delay “”
Sets the VOX delay timer (0.5 to 3.0 sec. in 0.5 sec. steps) that
keeps on transmitting after stops speaking.
Push
VOX delay 1.0 (default) VOX delay 3.0
Push
VOX gain 1 (default) VOX gain 6
Push
Scramble code 1
(default)
Scramble code 32
IC-M72_0.qxd 05.11.21 18:46 Page 22 (1,1)
23
8
BATTERY CHARGING
7
8
■Battery cautions
•RDANGER! Use and charge only specified Icom battery
pack with Icom transceiver. Only Icom battery pack is tested
and approved for use with Icom transceiver. Using third-
party or counterfeit battery packs may cause smoke, fire, or
cause the battery to burst.
DDBattery caution
•RDANGER! DO NOT hammer or otherwise impact the bat-
tery. Do not use the battery if it has been severely impacted
or dropped, or if the battery has been subjected to heavy
pressure. Battery damage may not be visible on the outside
of the case. Even if the surface of the battery does not show
cracks or any other damage, the cells inside the battery may
rupture or catch fire.
•RDANGER! NEVER use or leave battery pack in areas
with temperatures above +60˚C (+140˚F). High temperature
buildup in the battery, such as could occur near fires or
stoves, inside a sun heated car, or in direct sunlight may
cause the battery to rupture or catch fire. Excessive temper-
atures may also degrade battery performance or shorten
battery life.
•RDANGER! DO NOT expose the battery to rain, snow,
seawater, or any other liquids. Do not charge or use a wet
battery. If the battery gets wet, be sure to wipe it dry before
using. The battery by itself is not waterproof.
•RDANGER! NEVER incinerate used battery pack since in-
ternal battery gas may cause it to rupture, or may cause an
explosion.
•RDANGER! NEVER solder the battery terminals. This may
cause heat generation, and the battery may rupture, emit
smoke or catch fire.
•RDANGER! Use the battery only with the transceiver for
which it is specified. Never use a battery with any other
equipment, or for any purpose that is not specified in this in-
struction manual.
•RDANGER! If fluid from inside the battery gets in your
eyes, blindness can result. Rinse your eyes with clean
water, without rubbing them, and see a doctor immediately.
•WARNING! Immediately stop using the battery if it emits an
abnormal odor, heats up, or is discolored or deformed. If any
of these conditions occur, contact your Icom dealer or dis-
tributor.
•WARNING! Immediately wash, using clean water, any part
of the body that comes into contact with fluid from inside the
battery.
Misuse of Lithium-ion batteries may result in the follow-
ing hazards: smoke, fire, or the battery may rupture.
Misuse can also cause damage to the battery or degra-
dation of battery performance.
IC-M72_0.qxd 05.11.21 18:46 Page 23 (1,1)
24
8BATTERY CHARGING
New2001
•WARNING! NEVER put the battery in a microwave oven,
high-pressure container, or in an induction heating cooker.
This could cause a fire, overheating, or cause the battery to
rupture.
•CAUTION! Always use the battery within the specified tem-
perature range for the transceiver (–20˚C to +60˚C; –4˚F to
+140˚F) and the battery itself (–20˚C to +60˚C; –4˚F to
+140˚F). Using the battery out of its specified temperature
range will reduce the battery’s performance and battery life.
Please note that the specified temperature range of the bat-
tery may exceed that of the transceiver. In such cases, the
transceiver may not work properly because it is out of its op-
erating temperature range.
•CAUTION! Shorter battery life could occur if the battery is
left fully charged, completely discharged, or in an excessive
temperature environment (above +45˚C; +113˚F) for an ex-
tended period of time. If the battery must be left unused for a
long time, it must be detached from the radio after discharg-
ing. You may use the battery until the battery indicator
shows half-capacity, then keep it safely in a cool dry place
with the temperature between –20˚C to +25˚C (–4˚F to
+77˚F).
DDCharging caution
•RDANGER! NEVER charge the battery pack in areas with
extremely high temperatures, such as near fires or stoves,
inside a sun heated car, or in direct sunlight. In such envi-
ronments, the safety/protection circuit in the battery will acti-
vate, causing the battery to stop charging.
•WARNING! DO NOT charge or leave the battery in the bat-
tery charger beyond the specified time for charging. If the
battery is not completely charged by the specified time, stop
charging and remove the battery from the battery charger.
Continuing to charge the battery beyond the specified time
limit may cause a fire, overheating, or the battery may rup-
ture.
•WARNING! NEVER insert the battery and transceiver (bat-
tery attached to the transceiver) into the charger if it is wet or
soiled. This could corrode the battery charger terminals or
damage the charger. The charger is not waterproof.
•CAUTION! DO NOT charge the battery outside of the spec-
ified temperature range: ±0˚C to +45˚C (+32˚F to +113˚F).
Icom recommends charging the battery at +20˚C (+68˚F).
The battery may heat up or rupture if charged out of the
specified temperature range. Additionally, battery perfor-
mance or battery life may be reduced.
IC-M72_0.qxd 05.11.21 18:46 Page 24 (1,1)
25
8
BATTERY CHARGING
New2001
8
■Supplied battery charger
DBC-166 installation DCharging
qConnect the AC adapter as shown below.
wInsert the battery pack with/without the transceiver into the
charger.
• The charge indicator lights orange.
eCharge the battery pack approx. 10 hours, depending on
the remaining power condition.
• The charge indicator lights green after the charging.
NOTE: The battery charger, BC-166, has charging timer.
The timer stops charging after 14 hours (approx.) of
charging is performed.
Transceiver
Battery
pack
AC
adapter
Turn the transceiv-
er power OFF dur-
ing charging.
Charger indicator
q
w
e
Supplied screws
Supplied screws
• To a desktop
• For your convenience
• To a wall
Eyelet:
Use a rubber band to
secure the transceiv-
er, if desired.
IC-M72_0.qxd 05.11.21 18:46 Page 25 (1,1)
26
8BATTERY CHARGING
New2001
■Optional battery chargers
DAD-114 installation
qConnect both the 3-pin and 10-pin connectors of the
charger to the AD-114 desktop charger adapter’s plug.
wInstall the adapter into the charger in the direction of the
arrow, then screw supplied 2 screws to fix the charger
adapter with the charger.
DRapid charging with the BC-119N+AD-114
The optional BC-119N provides rapid charging of battery
packs. The following are additionally required.
• AD-114 charger adapter
• An AC adapter (BC-145) or the DC power cable (OPC-
515L/CP-17L).
AD-114 charger
adapter is instal-
led in BC-119N.
AC adapter
(Not supplied
with some
versions.)
Optional OPC-515L (for 13.8 V
power source) or CP-17L (for 12
V cigarette lighter socket) can be
used instead of the AC adapter.
Transceiver
Battery pack
Turn power OFF
Desktop charger adapter
10-pin connector
3-pin connector
Supplied
screws
IC-M72_0.qxd 05.11.21 18:46 Page 26 (1,1)
27
8
BATTERY CHARGING
New2001
8
DRapid charging with the BC-121N+AD-114
The optional BC-121N allows up to 6 battery packs to be
charged simultaneously. The following are additionally re-
quired.
• Six AD-114 charger adapters
• An AC adapter (BC-157) or the DC power cable (OPC-656)
Transceiver
Battery pack
AC adapter
(Purchase
separately)
AD-114 charger adapters
are installed in each slot.
DC power cable (OPC-656)
(Connect with the DC power supply;
13.8 V/at least 7 A)
Turn power OFF
IC-M72_0.qxd 05.11.21 18:46 Page 27 (1,1)
28
OPTIONAL SWIVEL BELT CLIP
New2001
9
■Attachment
qScrew the base clip to the
back of the transceiver
using the two screws (sup-
plied), as shown at right.
wClip the belt clip over your belt and insert the transceiver.
eOnce the transceiver is locked in place, it swivels.
■Detachment
➥Turn the transceiver upside down in the direction of the
arrow and pull out from the belt clip.
RRCAUTION!: HOLD THE TRANSCEIVER TIGHTLY,
WHEN HANGING OR DETACHING THE TRANSCEIVER
FROM THE BELT CLIP.
Otherwise the transceiver may not be attached to the belt
clip or swivelled properly if the transceiver is accidentally
dropped and the base clip is scratched or damaged.
Supplied screws
IC-M72_0.qxd 05.11.21 18:46 Page 28 (1,1)
29
10
OPTIONAL SPEAKER-MICROPHONE
9
10
■HM-125 descriptions
NEVER immerse the connector in water. If the connector be-
comes wet, be sure to dry BEFORE attaching it to the trans-
ceiver.
NOTE: The microphone is located at the top of the
speaker-microphone, as shown in the diagram above. To
maximize the readability of your transmitted signal (voice),
hold the microphone approx. 2.5 cm (1 inch) from your
mouth, and speak in a normal voice level.
■Attachment
Insert the speaker-mic connector onto the [SP MIC] connec-
tor and carefully screw it tight, as shown in the diagram
below. Be careful not to cross thread the connection.
IMPORTANT: KEEP the transceiver’s [SP MIC] connector
cap attached when the speaker-microphone is not in use.
Water will not get into the transceiver even if the cover is
not attached, however, the terminals (pins) will become
rusty, or the transceiver will function abnormally if the con-
nector has become wet.
Alligator type clip
To attach the speaker-mic.
to your shirt or collar, etc.
PTT switch
Transmits during push.
Receives during release.
Microphone
Speaker
Turn the transceiver power OFF
when connecting the HM-125.
Set the triangle mark
to the front side.
CAUTION: Attach the speaker-
microphone’s connector securely
to prevent accidental dropping, or
water intrusion in the connector.
Detaching:
Pull up the cap
in the direction
of the arrow to
detach it.
Attaching:
Attach the cap
in the direction
of the arrow
completely.
IC-M72_0.qxd 05.11.21 18:46 Page 29 (1,1)
PROBLEM
The transceiver does not
turn ON.
No sound from the
speaker.
Transmitting is impossible,
or high power can not be
selected.
The displayed channel
cannot be changed.
Scan does not start.
No beeps.
Self check error.
(Temperature)
Self check error.
(Battery voltage)
Transmitting continuously
while not speaking when
using VOX function.
“CHARGE” comment
blinks
30
TROUBLESHOOTING
New2001
11
POSSIBLE CAUSE
•The battery is exhausted.
•Bad connection to the battery pack.
•Squelch level is too deep.
•Volume level is too low.
•Speaker has been exposed to water.
• Water has entered to [SP MIC] connector.
•Some channels are for low power or receive
only.
•The battery is exhausted.
•The battery is over charged.
•The output power is set to low.
•Lock function is activated.
•“TAG” channels are not programmed.
•Beep tones are turned OFF.
•The temperature is outside of –35°C to +73°C;
–31°F to +163°F (approx.).
•The connected battery pack’s voltage is more
than 11 V.
• Ambient noise is too loud.
•The connected battery is exhaustion.
SOLUTION
•Recharge the battery pack.
•Check the connection to the transceiver.
•Set squelch to the threshold point.
•Rotate [VOL] to set a suitable level.
•Push and hold both [16•9] and [H/L•LOCK] to
drain water from the speaker.
• Dry [SP MIC] connector.
•Change channels.
•Recharge the battery pack.
•Verify the battery voltage is correct.
•Push [H/L•LOCK] to select high power.
•Push [H/L•LOCK] for 1 sec. to cancel the function.
•Set the desired channels as “TAG” channels.
•Set the beep tones to ON (Fix Beep/User Beep) in
the SET mode.
•Leave the transceiver at room temperature for a
while. Turn the power ON to check if the internal
temperature has returned to normal.
•Verify the battery voltage is correct.
• Push []and [H/L•LOCK] to deactivate the
VOX function.
• Set the VOX gain to lower sensitive value.
•Recharge the battery pack.
REF.
pgs.
25–27
p. 3
p. 11
p. 9
p. 12
—
pgs. 8, 9,
31
pgs.
25–27
—
p. 9
p. 10
p. 15
p. 18
—
—
p. 12
p. 22
pgs.
25–27
IC-M72_0.qxd 05.11.21 18:46 Page 30 (1,1)
31
12
VHF MARINE CHANNEL LIST
11
12
Channel number
USA CAN
Transmit
Receive
Frequency (MHz)
INT
Channel number Frequency (MHz)
USA CAN
Transmit
ReceiveINT
Channel number Frequency (MHz)
USA CAN
Transmit
ReceiveINT
Channel number Frequency (MHz)
USA CAN
Transmit
ReceiveINT
WX channel Frequency (MHz)
Transmit Receive
01 156.050 160.650
01A 156.050 156.050
02 156.100 160.700
03 156.150 160.750
03A 156.150 156.150
156.200 160.800
04A 156.200 156.200
156.250 160.850
05A 05A 156.250 156.250
06 06 156.300 156.300
156.350 160.950
07A 07A 156.350 156.350
08 08 156.400 156.400
09 09 156.450 156.450
10 10 156.500 156.500
11 11 156.550 156.550
12 12 156.600 156.600
13*13*156.650 156.650
14 14 156.700 156.700
15*15*156.750 156.750
16 16 156.800 156.800
17*17*156.850 156.850
156.900 161.500
18A 18A 156.900 156.900
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15*
16
17
18
156.950 161.550
19A 19A 156.950 156.950
20 20*157.000 161.600
21 157.050 161.650
21A 21A 157.050 157.050
157.100 161.700
22A 22A 157.100 157.100
23 157.150 161.750
23A 157.150 157.150
24 24 157.200 161.800
25 25 157.250 161.850
26 26 157.300 161.900
27 27 157.350 161.950
28 28 157.400 162.000
60 156.025 160.625
156.075 160.675
61A 61A 156.075 156.075
156.125 160.725
62A 156.125 156.125
156.175 160.775
63A 156.175 156.175
64 156.225 160.825
64A 64A 156.225 156.225
19
20
21
22
23
24
25
26
27
28
60
61
62
63
64
20A 157.000 157.000
66A 66A*
156.325 160.925
67*67 156.375 156.375
68 68 156.425 156.425
69 69 156.475 156.475
70 70 156.525
71 71 156.575 156.575
72 72 156.625 156.625
73 73 156.675 156.675
74 74 156.725 156.725
77*77*156.875 156.875
156.925 161.525
78A 78A 156.925 156.925
156.975 161.575
79A 79A 156.975 156.975
157.025 161.625
80A 80A 157.025 157.025
157.075 161.675
81A 81A 157.075 157.075
157.125 161.725
82A 82A 157.125 157.125
66
67
68
69
70
71
72
73
74
77
78
79
80
81
82
156.325 156.32566A
85 85 157.275 161.875
85A 157.275 157.275
86 86 157.325 161.925
86A 157.325 157.325
87 87 157.375 161.975
87A 157.375 157.375
88 88 157.425 162.025
88A 157.425 157.425
85
86
87
88
21b Rx only
Rx only
161.650
25b Rx only 161.850
28b Rx only 162.000
83b Rx only 161.775
4
1 RX only 162.550
2 RX only 162.400
3 RX only 162.475
5 RX only 162.450
6 RX only 162.500
7 RX only 162.525
8 RX only 161.650
9 RX only 161.775
10 RX only 163.275
RX only 162.425
156.275 160.875
65A 65A 156.275 156.275
65
65A 84A
83 157.175 161.775
83A 83A 157.175 157.175
84 84 157.225 161.825
83
84
157.225 157.225
*Low power only.
NOTE: Simplex channels 3, 21, 23, 61, 64, 81, 82 and 83 CANNOT be lawfully used by the general public in USA waters.
The programmed channels are differ according to versions.
IC-M72_0.qxd 05.11.21 18:46 Page 31 (1,1)
32
SPECIFICATIONS
New2001New2001
13
DDGENERAL
• Frequency coverage : TX 156.025–157.425 MHz
RX 156.050–163.275 MHz
• Mode : 16K0G3E
• Power supply requirement : Specified Icom’s battery pack only
• Current drain (at 7.5 V DC; approx.):
TX High (at 6 W) 1.7 A
TX Mid. (at 3 W) 1.3 A
TX Low (at 1 W) 0.7 A
RX Max. audio 400 mA (internal speaker)
200 mA (external speaker)
• Useable temperature range : –20°C to +60°C; –4°F to +140°F
• Frequency error : ±10 ppm
• Antenna connector : SMA (50 Ωnominal)
• Dimensions : 52.5(W) ×125(H) ×30(D) mm
(Projections not included) 21⁄16(W) ×415⁄16(H) ×13⁄16(D) inch
• Weight (with BP-245) : Approx. 280 g (9.9 oz)
DDTRANSMITTER
• Output power (at 7.5 V DC) : 6 W* (High), 3 W (Middle)
and 1 W (Low) *5 W for some versions
• Modulation system : Variable reactance frequency mod-
ulation
• Max. frequency deviation : ±5 kHz
• Adjacent channel power : 70 dB
• Spurious emissions : –68 dBc typical
DDRECEIVER
• Receive system : Double-conversion superhetero-
dyne
• Sensitivity (12 dB SINAD) : 0.22 µV typical
• Squelch sensitivity : 0.35 µV typical (at threshold)
• Intermodulation rejection ratio: 70 dB typical
• Spurious response rejection ratio:
70 dB typical
• Adjacent channel selectivity : 70 dB typical
• Audio output power :
Internal speaker 0.6 W typical at 10% distortion with an
8 Ωload
External speaker 0.35 W typical at 10% distortion with an
8 Ωload
All stated specifications are subject to change without notice or
obligation.
IC-M72_0.qxd 05.11.21 18:46 Page 32 (1,1)
33
13
14
New2001
14
OPTIONS
DBATTERY CASE AND PACK
•BP-245 Li-Ion
BATTERY PACK
7.2 V/2000 mAh Li-Ion battery pack.
DCHARGERS
•BC-119N
DESKTOP CHARGER
+ AD-114
CHARGER ADAPTER
+ BC-145
AC ADAPTER
For rapid charging of battery packs. An AC adapter is supplied with
the charger depending on versions. Charging time: approx. 3 to 4
hours
•BC-121N
MULTI
-
CHARGER
+ AD-114
CHARGER ADAPTER
(6 pcs.)
+ BC-157
AC ADAPTER
For rapid charging of up to 6 battery packs (six AD-114’s are re-
quired) simultaneously. An AC adapter should be purchased sepa-
rately. Charging time: approx. 3 to 4 hours.
•BC-166
DESKTOP CHARGER
+ BC-147A/E/BM-95V
AC ADAPTER
Used for regular charging of battery pack. The same as supplied
with the transceiver. Charging time: approx. 11 hours
DBELT CLIPS
•MB-103
BELT CLIP
The same as supplied with the transceiver.
•MB-86
SWIVEL BELT CLIP
Belt clip for swivel type.
DDC CABLES
•CP-17L
CIGARETTE LIGHTER CABLE
Charges the battery pack through a 12 V cigarette lighter socket.
(For BC-119N)
•OPC-515L/OPC-656
DC POWER CABLES
Charges the battery pack using 13.8 V power source instead of the
AC adapter.
OPC-515L: For BC-119N
OPC-656 : For BC-121N
DOTHER OPTIONS
•HM-125
SPEAKER
-
MICROPHONE
Full sized waterproof (JIS grade 7; 1m/30 min.) speaker-microphone.
Includes an alligator clip to attach the speaker mic to your shirt, col-
lar, etc.
•HS-94/HS-95/HS-97
HEADSET
+ OPC-1392
HEADSET ADAPTER
HS-94: Ear-piece type
HS-95: Neck-arm type
HS-97: Throat microphone
•FA-S64V
FLEXIBLE ANTENNA
Same as that supplied with the transceiver.
Available or usable options may differ according to coun-
tries. Ask your authorized dealer for details.
IC-M72_0.qxd 05.11.21 18:46 Page 33 (1,1)
1-1-32 Kamiminami, Hirano-ku, Osaka 547-0003, Japan
A-6479D-1EX
Printed in Japan
©2005 Icom Inc.
New2001
IC-M72_0.qxd 05.11.21 18:46 Page 34 (1,1)

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