Icom IC-M402A, IC-M402SA Instruction Manual

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-M402A/M402SA.

EXPLICIT DEFINITIONS

WORD DEFINITION

R WARNING!

CAUTION

NOTE

Personal injury, fire hazard or electric shock
may occur.

Equipment damage may occur.

Recommended for optimum use. No risk of
personal injury, fire or electric shock.

CLEAN THE TRANSCEIVER AND MICROPHONE THOR­OUGHLY WITH FRESH WATER after exposure to water

including salt water, otherwise, the keys and switches may
become inoperable due to salt crystallization.

ii

NOTE

A WARNING STICKER is supplied with the transceiver.
To comply with FCC regulations, this sticker must be affixed in
such a location as to be readily seen from the operating con­trols of the radio as in the diagram below. Make sure the cho­sen location is clean and dry before applying the sticker.
(p. 33)

EXAMPLE

WARNING.

WARNING
STICKER

FAILURE TO OBSERVE THESE LIMITS MAY ALLOW
THOSE WITHIN THE MPE RADIUS TO EXPERIENCE RF
RADIATION ABSORPTION WHICH EXCEEDS THE FCC
MAXIMUM PERMISSIBLE EXPOSURE (MPE) LIMIT.
IT IS THE RESPONSIBILITY OF THE RADIO OPERATOR
TO ENSURE THAT THE MAXIMUM PERMISSIBLE EXPO­SURE LIMITS ARE OBSERVED AT ALL TIMES DURING
RADIO TRANSMISSION. THE RADIO OPERATOR IS TO
ENSURE THAT NO BYSTANDERS COME WITHIN THE
RADIUS OF THE MAXIMUM PERMISSIBLE EXPOSURE
LIMITS.

Determining MPE Radius
THE MAXIMUM PERMISSIBLE EXPOSURE (MPE) RA­DIUS HAS BEEN ESTIMATED TO BE A RADIUS OF
ABOUT 3M PER OET BULLETIN 65 OF THE FCC.
THIS ESTIMATE IS MADE ASSUMING THE MAXIMUM
POWER OF THE RADIO AND ANTENNAS WITH A MAXI­MUM GAIN OF 9dBi ARE USED FOR A SHIP MOUNTED
SYSTEM.

iv

……………………… 29

11 COMMANDMIC

®

HM-127

(IC-M402A only) ………………… 38–51

■ Panel description …………………38

■ Function display ……………………40

■ Channel selection …………………42

■ Receiving and transmitting ………43

■ Call channel programming ………44

■ Lock functions………………………44

■ Display backlighting ………………45

■ Monitor function ……………………45

■ Dualwatch/Tri-watch operation …45

■ Setting tag channels ………………46

■ Starting a scan ……………………46

■ Set mode programming …………47

■ Intercom operation…………………48

■ Channel comments ………………48

■ HM-127 supplied accessories ……49

■ Installation …………………………50

12 CHANNEL LIST …………………… 52
13 SPECIFICATIONS …………… 53–54

■ Specifications …………………… 53

■ Dimensions ……………………… 54

14 TEMPLATE ………………………… 55
15 OPTIONS …………………………… 57

BE CAREFUL! The transceiver rear panel will become

hot when operating continuously for long periods.
Place the transceiver in a secure place to avoid inadvertent
use by children.

BE CAREFUL! The transceiver and optional HM-127*em-

ploy waterproof construction, which corresponds to JIS wa­terproof specification, Grade 7 (1 m/30 min.). However, once
the transceiver or microphone has been dropped, water­proofing cannot be guaranteed due to the fact that the case
may be cracked, or the waterproof seal damaged, etc.
*IC-M402A only

1

1

OPERATING RULES

(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 or kept with the operator. Only a licensed radio opera­tor may operate a transceiver.

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

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

Radio license for boaters (U.S.A. only)

The Telecommunications Act of 1996 permits recreational
boaters to have and use a VHF marine radio, EPIRB, and
marine radar without having an FCC ship station license.
Boaters traveling on international voyages, having an HF
single sideband radiotelephone or marine satellite termi­nal, or required to carry a marine radio under any other
regulation must still carry an FCC ship station license. For
further information, see the FCC Ship Radio Stations Fact
Sheet.

1

r SCAN KEY [SCAN•

TAG ] (p. 13)

➥ Starts and stops Normal or Priority scan.
➥ Sets or clears the displayed channel as a tag (scanned)

channel when pushed for 1 sec.

➥ While pushing [HI/LO] on the microphone, push for 3

sec. to clear or set all tag channels in the selected chan­nel group.

t CHANNEL/WEATHER CHANNEL KEY [CH/WX•

DUAL]

➥ Toggles between regular channels and weather chan-

nel when pushed momentarily. (p. 7)

➥ Starts Dualwatch or Tri-watch when pushed for 1 sec.

(p. 11)

➥ Stops Dualwatch or Tri-watch when either is activated.

y CHANNEL 16/CALL CHANNEL KEY [16•

9]

➥ Selects Channel 16 when pushed. (p. 6)
➥ Selects call channel when pushed for 1 sec. (p. 6)

•“CALL” appears when call channel is selected.

➥ Push for 3 sec. to enter call channel programming con-

dition when call channel is selected. (p. 9)

➥ While pushing [CH/WX

•DUAL], push to enter the chan-

nel comments programming condition. (p. 10)

➥ Enters Set mode when pushed while turning power ON.

(p. 30)

3

2

PANEL DESCRIPTION

2

r TAG CHANNEL INDICATOR (p. 13)

Appears when a tag channel is selected.

t CALL CHANNEL INDICATOR (p. 6)

Appears when the call channel is selected.

y LOW POWER INDICATOR (p. 8)

Appears when low power is selected.

u DUPLEX INDICATOR (p. 7)

Appears when a duplex channel is selected.

i WEATHER CHANNEL INDICATOR (pgs. 7, 31)

➥ “WX” appears when a weather channel is selected.
➥ “WX ALT” appears when the Weather alert function is

in use; blinks when an alert tone is received.

o GPS INDICATOR

➥ Appears while valid position data is received.
➥ Blinks when invalid position data is received.
➥ Disappears when no GPS receiver is connected.

!0 DSC INDICATOR

Indicates the DSC status.

➥ “DSC” appears when a DSC call is received. (p. 25)
➥ “POS REPLY” appears when a Position Request Reply

call or Position Report Reply call is received. (p. 28)

5

2

PANEL DESCRIPTION

■ Microphone

q PTT SWITCH [PTT]

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

w CHANNEL UP/DOWN KEYS [YY]/[ZZ]

Push either key to change the operating memory channel,
Set mode settings, etc. (pgs. 6, 7, 30)

e TRANSMIT POWER KEY [HI/LO]

➥ Toggles power high and lower when pushed. (p. 8)

• Some channels are set to low power only.

➥ While pushing [HI/LO], turn power ON to toggle the mi-

crophone lock function ON and OFF. (p. 10)

Microphone

w

q

e

2

ïï

Channel 9 (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.

➥ Push [16•

9] for 1 sec. to select the call channel of the se-

lected channel group.

•“CALL” and call channel number appear.

• Each channel group may have an independent call channel after

programming a call channel. (p. 9)

➥ Push [CH/WX•DUAL

] to return to the condition before se-

lecting call channel, or push [Y] or [Z] to select an oper­ating channel.

Push

for 1 sec.

Scrolls

7

3

BASIC OPERATION

ïï

Weather channels

The IC-M402A/M402SA has 10 weather channels. These are
used for monitoring broadcasts from NOAA (National
Oceanographic and Atmospheric Administration.)
The transceiver can detect a weather alert tone on the se­lected weather channel while receiving the channel, during
standby on a regular channel or while scanning. (p. 31)

q Push [CH/WX•

DUAL] once or twice to select a weather

channel.

•“WX” appears when a weather channel is selected.

• “WX ALT” appears when the Weather alert function is in use.

(p. 31)

w Push [Y] or [Z] to select a channel.

Push once or twice

When Weather alert is OFF.

When Weather alert is ON.

3

Simplex channels, 3, 21, 23, 61, 64, 81, 82 and 83 CAN­NOT be lawfully used by the general public in U.S.A. wa-

ters.
IMPORTANT: To maximize the readability of your trans-

mitted signal, pause a few sec. after pushing [PTT], hold
the microphone 2 to 4 inches (5 to 10 cm) from your mouth
and speak into the microphone (M) at a normal voice level.

u

rt

M

yq

M: Microphone

w

re

9

3

BASIC OPERATION

r Push [Y] or [Z] to select

the desired channel.

t Push [16•

9] to program the

displayed channel as the
call channel.

• Push [CH/WX•DUAL] to can-
cel.

• The channel number stops
blinking.

3

■ Microphone lock function

The microphone lock function electrically locks [Y]/[Z] and
[HI/LO] keys on the supplied microphone. This prevents ac-

cidental channel changes and function access.
➥ While pushing [HI/LO] on the microphone, turn power ON

to toggle the lock function ON and OFF.

■ Display backlighting

The function display and keys can be backlit for better visibil­ity under low light conditions.

➥ While pushing [SCAN

•TAG], push [Y] or [Z] to adjust the

brightness of the LCD and key backlight.

• The backlight is selectable in 3 levels and OFF.

[HI/LO]

[Y]/[Z]

11

4

DUALWATCH/TRI-WATCH

■ Operation

q Select Dualwatch or Tri-watch in Set mode. (p. 31)
w Select the desired operating channel.
e Push [CH/WX•

DUAL] for 1 sec. to start Dualwatch or Tri-

watch.

•“ ” blinks during Dualwatch; “” blinks during Tri-watch.

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

r To cancel Dualwatch/Tri-watch, push [CH/WX•DUAL] again.

[Example]: Operating Tri-watch on INT Channel 25

Tri-watch starts.

Signal is received on call
channel.

Signal is received on
Channel 16 takes priority.

Tri-watch resumes after
the signal disappears.

Push

for 1 sec.

3
4

Set the tag channels (scanned channel) before scanning.
Clear the tag channels which inconveniently stop scanning,
such as those for digital communication use.

Choose Priority or Normal scan in Set mode. (p. 31)

NORMAL SCAN

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

CH 01 CH 02

CH 06

CH 05 CH 04

CH 03

13

5

SCAN OPERATION

■ Starting a scan

Set scan type (Priority or Normal) and scan resume timer in
advance, using Set mode. (p. 31)

q Set tag channels as described at left.
w Make sure the squelch is closed to start a scan.
e Select the channel group (USA, CAN, INT) by pushing

both [Y] and [Z] on the transceiver, if desired.

r Push [SCAN•

TAG ] to start Priority or Normal scan.

•“ ” or “” appears at the channel comment indicator.

• When a signal is detected, scan pauses until the signal disap-

pears or resumes after pausing 5 sec. according to Set mode
setting. (Channel 16 is still monitored during Priority scan.)

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

•“ ” blinks at the channel comment indicator and a beep tone
sounds when a signal is received on Channel 16 during Priority
scan.

t To stop the scan, push [SCAN•TAG].

Scan starts. When a signal is received.

Push

5

■ MMSI code check

The 9-digit MMSI (DSC self ID) code can be checked.

q Push [DSC•

IC] to enter the DSC menu.

w Push [Y] or [Z] to select “” and push [DSC•

IC].

e Check the 9-digit MMSI (DSC self ID) code.

• The MMSI code is displayed and scrolls at the channel comment
indicator.

r Push [DSC•IC] to exit the DSC menu.

MMSI (DSC self ID) code scrolls

15

6

DSC OPERATION

r Push [Y] or [Z] to input 9-digit of the appropriate Individ-

ual/Group ID.

• Push [SCAN•TAG] or [CH/WX•DUAL] to move the cursor forward
or backward, respectively.

• Push [16•9] to cancel and exit the condition.

1st digit ‘0’ is fixed for a group ID. Thus an address ID input
cannot start with ‘0.’ When you input 1st digit ‘0’ and other 8
digits, the ID is automatically registered as a group ID.

t After inputting 9-digit ID, push [DSC•IC] to input 5 charac-

ters ID name using [Y] or [Z].

• Push [SCAN•TAG] or [CH/WX•DUAL] to move the cursor forward
or backward, respectively.

• Push [16•9

] to cancel and exit the condition.

y Push [DSC•IC] to program and exit the DSC menu.

6

■ Position indication

When a GPS receiver (NMEA0183 ver. 2.0 or 3.01) is con­nected, the transceiver indicates the current position data in
seconds of accuracy.

A NMEA0183 ver. 2.0 or 3.01 (sentence formatters RMC,
GGA, GNS, GLL) compatible GPS receiver is required. Ask
your dealer about suitable GPS receivers.

➥ While pushing [SCAN

•TAG ], push [DSC•IC] to display the

current position.

•‘Latitude’ and ‘Longitude’ scroll in sequence at the channel com-
ment indicator.

• “” scrolls when no GPS is connected.

• When the connecting GPS receiver is compatible with

several sentence formatters, the order of input prece­dence is ‘RMC,’‘GGA,’‘GNS’ and ‘GLL.’

• “GPS” blinks when the GPS data is invalid.

Scrolls

17

6

DSC OPERATION

r After receiving the acknowledgment, reply using the mi-

crophone.

•“ ” scrolls at the channel comment indicator.

➥ A distress alert contains;

• Kinds of distress: Undesignated distress

• Position data : Latest GPS position data held for 23.5 hrs.

or until the power is turned OFF.

➥ The Distress call is repeated every 3.5–4.5 min., until re-

ceiving an ‘acknowledgement.’

➥ Push [DISTRESS] to transmit a renewed Distress call,

if desired.

➥ Push any key except [DISTRESS] to cancel the ‘Call

repeat’ mode.

Scrolls

Scrolls

6

e Push [Y] or [Z] to specify the desired intership channel,

and push [DSC•

IC].

• Channel 70 is selected and “” appears.

r Push [DSC•IC] to transmit the Individual call.

• If Channel 70 is busy, the transceiver stands by until the channel
becomes clear.

• Routine category only is available.

When Ch 70 is busy.Push [DSC

IC] to

transmit DSC call.

19

6

DSC OPERATION

D Transmitting Individual acknowledgement

Transmit an acknowledgement (‘able to comply’ or ‘unable to
comply’) when an Individual call for you is received.

q Push [DSC•

IC] to enter the DSC menu.

w Push [Y] or [Z] to select “” and push [DSC•

IC].

• “” item appears after an Individual call is received.

• “” item disappears if another call is received after the

Individual call.

• The Individual acknowledgement can be transmitted to the last
received individual call only.

e Push [Y] or [Z] to select the acknowledgement “” or

“ .”

Scrolls

6

D Transmitting Group call

The Group call function allows you to transmit a DSC signal
to a specific group only.

q Push [DSC•

IC] to enter the DSC menu.

w Push [Y] or [Z] to select “ ,” and push [DSC•

IC].

e Push [Y] or [Z] to select the desired pre-programmed

group address, and push [DSC•

IC

].

• The ID code for the group call must be set in advance. (p. 15)

21

6

DSC OPERATION

y After the Group call has been transmitted, the display

changes to the previously specified channel.

u Push and hold [PTT] to communicate your message to the

responding ship.

6

r Push [DSC•IC] to transmit the All Ships call.

• Routine category only is available.

t After the All Ships call has been transmitted, the display

changes to Channel 16 automatically.

Scrolls

23

6

DSC OPERATION

r Push [DSC•IC] to enter the standby condition for Position

Request call.

• Channel 70 is selected and “” appears.

t Push [DSC•IC] to transmit the Position Request call.

y After the Position Request call has been transmitted, the

following indication is displayed.

•“ ” scrolls at the channel comment indicator.

u Push any key to exit the condition and return to the nor-

mal operation.

Scrolls

6

r Push [DSC•IC] to enter the standby condition for Position

Report call.

• Channel 70 is selected and “” appears.

t Push [DSC•IC] to transmit the Position Report call.

y After the Position Report call has been transmitted, stand

by on Channel 70 until an acknowledgement is received.

•“ ” scrolls at the channel comment indicator.

u Push any key to exit the condition and return to the nor-

mal operation.

Scrolls

25

6

DSC OPERATION

D Receiving a Distress acknowledgement

While monitoring Channel 70 and a Distress acknowledge­ment to other ship is received:
➥ The emergency alarm sounds for 2 minutes.

• Push any key to stop the alarm.

➥ “DSC” appears and “” scrolls at the chan-

nel comment indicator, then Channel 16 is automatically
selected.

D Receiving a Distress Relay call

While monitoring Channel 70 and a Distress Relay acknowl­edgement is received:
➥ The emergency alarm sounds for 2 minutes.

• Push any key to stop the alarm.

➥ “DSC” appears and “” scrolls at the channel com-

ment indicator, then Channel 16 is automatically selected.

Scrolls

Scrolls

6

D Receiving a Group call

While monitoring Channel 70 and a Group call is received:
➥ The emergency alarm or beeps sound depending on the

received category.

➥ “DSC” appears and “” scrolls at the channel

comment indicator.

➥ Push [DSC•

IC] to change to the channel specified by the

calling station for voice communication; push any other key
to ignore the Group call.

Scrolls

27

6

DSC OPERATION

D Receiving a Geographical Area call

While monitoring Channel 70 and a Geographical Area call
(for the area you are in) is received:
➥ The emergency alarm or beeps sound depending on the

received category.

➥ “DSC” appears and “” scrolls at the chan-

nel comment indicator.

➥ Push [DSC•

IC

] to change to the channel specified by the

calling station for voice communication; push any other key
to ignore the Geographical Area call.

➥ Monitor the selected channel for an announcement from

the calling station.

When no GPS receiver is connected or if there is a prob­lem with the connected receiver, all Geographical Area
calls are received, regardless of your position.

Scrolls

6

D Receiving a Position Report call

While monitoring Channel 70 and a Position Report call is re­ceived:
➥ “DSC” appears and “” scrolls at the chan-

nel comment indicator.

➥ Push [DSC•

IC] to reply to the Position Report call; push

any other key to ignore the Position Report call.

D Receiving a Position Report Reply call

While monitoring Channel 70 and a Position Report Reply call
is received:

➥ “DSC” and “POS REPLY” appear in the display.

• The ‘Latitude’ and ‘Longitude’ you have sent is displayed and

scrolled automatically in order of Latitude co-ordinates and then
Longitude co-ordinates.

Scrolls

Scrolls

29

7

6
7

r After releasing the PTT switch you can hear the response

through the speaker.

t To return to the normal operation, push [DSC•

IC] momen-

tarily.

• Other keys also turn the function OFF, however, the correspond­ing function is then activated (e.g. pushing [16•9]selects Chan­nel 16).

• While in the Intercom mode, the transceiver functions
(transmit and receive) are interrupted. If the transceiver
is in transmit condition, the Intercom function is not avail­able.

• When a DSC call is received, “DSC” appears and DSC
message is displayed at the channel comment indicator
after the Intercom use is finished.

• When a WX alert is received, “WX ALT” blinks and a
beep sounds. The WX alert sounds after the Intercom
use is finished.

IC-M402A (caller)

INT

HM-127 (listener)

D Set mode operation

q Turn power OFF.
w While pushing [16•

9], turn power ON to enter Set mode.

• “” appears at the channel comment indicator.

e After the display appears, release [16•9].
r Push [16•

9] to select the desired item, if necessary.

t Push [Y] or [Z] to select the desired condition of the item.
y Turn power OFF, then ON again to exit Set mode.

Dual/Tri-watch DSC watch

Push

Scrolls

31

8

SET MODE

DD

Weather alert

A NOAA broadcast station transmits a weather alert tone be­fore important weather information. When the weather alert
function is turned ON, the transceiver detects the alert, then
the “WX ALT” indicator blinks until the transceiver is operated.
The previously selected (used) weather channel is checked
any time during standby or while scanning.

•“WX ALT” appears instead of “WX” indication when the function is
set ON.

DD

Dual/Tri-watch

This item can be selected as Dualwatch or Tri-watch. (p. 11)

Dualwatch (default) Tri-watch

Weather alert OFF (default) Weather alert ON

8

DD

LCD contrast

This item adjusts the contrast of the LCD in 4 levels.
The LCD contrast can be adjustable in 4 levels. 1 is the low­est contrast, and 4 is the highest contrast.

DD

Automatic acknowledgement

This item sets the Automatic acknowledgement function ON
or OFF.
When Position Request or Position Report call is received,
transceiver automatically transmits Position Request Reply or
Position Report Reply, respectively.

•

“” scrolls at the channel comment indicator.

Auto acknowledgement

OFF (default)

Auto acknowledgement

ON

Scrolls Scrolls

LCD contrast level 3

(default)

LCD contrast level 1

33

9

■ Antenna

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

■ Fuse replacement

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

■ Cleaning

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

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

8
9

-

r GPS RECEIVER JACK

Connects to a GPS receiver for position indication.

• A NMEA0183 ver. 2.0 or 3.01 (sentence formatters RMC, GGA,
GNS, GLL) compatible GPS receiver is required. Ask your dealer
about suitable GPS receivers.

t EXTERNAL SPEAKER JACK

Connects to an external speaker. See p. 57 for available
external speakers.

CAUTION: After connecting the DC power cable, GPS re­ceiver jack and external speaker jack, cover the connector
and jacks with an adhesive tape as shown below, to pre­vent water seeping into the transceiver.

Rubber vulcanizing
tape

NMEA (+)

RCA

NMEA (—)

35

9

CONNECTIONS AND MAINTENANCE

■ Optional MB-92 attachment

An optional MB-92

DUST COVER

is available for attaching the
transceiver’s front panel to prevent the keys and knobs get­ting wet when the transceiver is not used.

➥ Attach the optional MB-92

DUST COVER

to the transceiver

as shown below.

9

e Attach the clamps on either side of the transceiver with 2

supplied bolts (5 × 8 mm).

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

r Tighten the end bolts on the clamps (rotate clockwise) so

that the clamps press firmly against the inside of the in­strument control panel.

t Tighten the locking nuts (rotate counterclockwise) so that

the transceiver is securely mounted in position as below.

y Connect the antenna and power cable, then return the in-

strument control panel to its original place.

IC-M402A

37

10

TROUBLESHOOTING

p. 8
p. 8

—

• Set squelch to the threshold point.

• Set [VOL] to a suitable level.

• Drain water from the speaker.

pgs. 6,
7, 52
p. 8

• Change channels.

• Push [HI/LO] on the microphone to select

high power.

• Turn the beep tone ON in Set mode.

• Set squelch to the threshold point.

p. 32
p. 8

• Program the MMSI (DSC self ID) code. p. 14

9
10

q PTT SWITCH [PTT] (pgs. 8, 43)

Push and hold to transmit; release to receive.

w CHANNEL UP/DOWN KEYS [YY]/[ZZ]

➥ Push either key to change the operating channel, Set

mode settings, etc. (pgs. 8, 30, 43, 47)

➥ Push either key to adjust audio level or noise squelch

level after [VOL] or [SQL] is pushed, respectively.
(pgs. 8, 43)

➥ Push either key to adjust the brightness of the LCD and

key backlight after [VOL• ] is pushed for 1 sec.
(p. 45)

➥ Checks tag channels or changes scanning direction dur-

ing scan. (pgs. 13, 46)

e CHANNEL 16/CALL CHANNEL KEY [16•

9]

➥ Selects Channel 16 when pushed. (pgs. 6, 42)
➥ Selects call channel when pushed for 1 sec. (pgs. 6, 42)

•“CALL” appears when call channel is selected.

➥ Push for 3 sec. to enter call channel programming con-

dition when call channel is selected. (pgs. 9, 44)

➥ While pushing [CH/WX•

U/I/C], enters channel com-

ments programming condition. (pgs. 10, 48)

➥ Enters Set mode when pushed while turning power ON.

(pgs. 30, 47)

DW

DIM

OPTION

(IC-M402A only)

39

11

COMMANDMIC®HM-127

y SQUELCH/MONITOR/LOCK KEY [SQL•

L]

➥ [YY]/[ZZ] sets the squelch threshold level after pushing

[SQL]. (p. 43)

➥ Push [SQL•

L] for 1 sec. to turn the monitor func-

tion ON. (p. 45)

➥ While pushing [H/L], push [SQL•

L] to toggle the

(microphone) Key lock function ON or OFF. (p. 44)

•“ T ” appears while (microphone) Key lock function is in use.

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

(microphone) Key lock function is turned ON.

➥ Advance the cursor while in channel comment pro-

gramming condition. (pgs. 10, 48)

u VOLUME/DIMMER KEY [VOL• ]

➥ [YY]/[ZZ] adjusts the audio level after pushing [VOL]

(p. 43)

➥ [YY]/[ZZ] adjust the brightness of the LCD and key back-

light after pushing [VOL• ] for 1 sec. (p. 45)

➥ Move the cursor backward while in channel comment

programming condition. (pgs. 10, 48)

DIM

DIM

MONI

MONI

MONI

11

■ Function display

q CHANNEL GROUP INDICATOR (pgs. 7, 42)

Indicates whether an International “INT,” U.S.A. “USA” or
Canadian “CAN” channel is selected.

w KEY LOCK INDICATOR (p. 44)

➥ Appears while the Key lock function is in use.
➥ Blinks while the All key lock function is in use.

e CHANNEL NUMBER READOUT

➥ Indicates the selected operating channel number.

“A” appears when a simplex channel is selected. “b” ap­pears when a receive only channel for a Canadian
channel group is selected. (pgs. 6, 42)

➥ In Set mode, indicates the selected condition.

(pgs. 30, 47)

CALL

WX ALT

DUP

P SCAN TRI

DUAL

LOW

TAG
CAN
USA
INT

L

TX

BUSY

VOL

SQL

q

w

r
t

e

!4!5 !3

!2

!1

!0

u

i

o

y

!6

41

11

COMMANDMIC®HM-127

o DUAL/TRI-WATCH INDICATOR (pgs. 11, 45)

“DUAL” appears during Dualwatch; “TRI” during Tri-watch.

!0 WEATHER CHANNEL INDICATOR (pgs. 7, 42)

➥ “WX” appears when a weather channel is selected.
➥ “WX ALT” appears when the Weather alert function is

in use; blinks when an alert tone is received.

!1 LOW POWER INDICATOR (pgs. 8, 43)

Appears when low power is selected.

!2 CALL CHANNEL INDICATOR (pgs. 6, 42)

Appears when call channel is selected.

!3 DUPLEX INDICATOR (pgs. 7, 42)

Appears when a duplex channel is selected.

!4 TAG CHANNEL INDICATOR (pgs. 13, 46)

Appears when a tag channel is selected.

!5 BUSY INDICATOR (pgs. 8, 43, 45)

Appears when receiving a signal or when the squelch
opens.

!6 TRANSMIT INDICATOR (pgs. 8, 43)

Appears while transmitting.

11

DD

U.S.A., International and Canadian channels

q Push [CH/WX• U/I/C] to select a regular channel.

• Push [CH/WX• U/I/C] again, if a weather channel appears.

w While pushing [H/L], push [CH/WX• U/I/C] to select a

channel group.

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

U.S.A. channels

Canadian channelsInternational channels

+

while pushing

Push

+

DW

DW

DW

43

11

COMMANDMIC®HM-127

IMPORTANT: To maximize the readability of your trans-

mitted signal (voice), pause a few sec. after pushing [PTT],
hold the microphone 2 to 4 inches (5 to 10 cm) from your
mouth and speak at a normal voice level.

w Set volume

w Set squelch,

if required

r Set output power

t Speak into

microphone

q Turn power ON

e Set channel

t Push to

transmit

y Release
to receive

11

■ Lock functions

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

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

DD

Activating the Lock function

➥ While pushing [H/L], push

[SQL•

L] to turn the Lock

function ON or OFF.

•“ ” appears.

• Only [PWR], [PTT], [H/L],

[SQL• L

], [VOL]+[YY]/[ZZ]

and [SQL]+[YY]/[ZZ] are func­tional.

DD

Activating the All key lock function

➥ While pushing [H/L], turn the

power ON by pushing [PWR]
to turn the All key lock function
ON or OFF.

•“ ” blinks.

• Only [PWR] and [PTT] are func-

tional.

MONI

MONI

Appears when the lock
function is in use.

Blinks when the all lock
function is in use.

45

11

COMMANDMIC®HM-127

■ Dualwatch/Tri-watch operation

q Push [YY] or [ZZ] to select the desired channel.

• Push [CH/WX• U/I/C] several times while pushing [H/L] to

select the channel group (USA, INT, CAN), if desired.

w Push [CH/WX• U/I/C] for 1 sec. to start Dualwatch or

Tri-watch.

•“DUAL” appears during Dual-
watch; “TRI” appears during Tri­watch.

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

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

• Dualwatch or Tri-watch can be
selected in the transceiver’s Set
mode.

e To cancel Dualwatch/Tri-watch, push [CH/WX• U/I/C

]

again.

DW

DW

DW

Appears when the Dual or
Tri-watch function is in use.

11

■ Starting a scan

q While pushing [H/L], push [CH/WX• U/I/C] several

times to select the channel group (USA, INT, CAN), if de­sired.

• When the Weather alert function is in use, select the desired
weather channel with [CH/WX• U/I/C] and [YY] or [ZZ].

w Push [SCAN• ] to start Priority or Normal scan.

•“SCAN” appears during Normal scan.

• The priority channel readout indicates “16”, and “P” and “SCAN”

indicators appear during Priority scan.

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

• Push [YY] or [ZZ] to check the scanning tag channels, to change
the scanning direction or resume the scan manually.

e To stop the scan, push [SCAN• ].

•“SCAN” disappears.

• Pushing [PTT], [16•9] or [CH/WX• U/I/C] also stops the scan.

DW

TAG

TAG

DW

DW

47

11

COMMANDMIC®HM-127

DD

Entering Set mode

q Turn power OFF.
w While pushing [16•

9], turn power ON.

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

e Push [16•9] to select the desired item, if necessary.
r Push [YY] or [ZZ] to select the desired condition of the item.
t Turn power OFF, then ON to exit Set mode.

• Beep tone “”

➥ Push [YY] to turn ON, [ZZ] to turn OFF the beep output.

• LCD contrast “”

➥ Push [YY]/[ZZ] to adjust to a suitable LCD contrast.

•

“” scrolls at the channel comment indicator.

Push

Scrolls

Scrolls

Push

11

■ Channel comments

q Push [YY] or [ZZ] to select a channel to program a channel

comment.

• Push [CH/WX• U/I/C] several times while pushing [H/L] to se-
lect the channel group (USA, INT, CAN), if desired.

w While pushing [CH/WX• U/I/C], push [16•9].

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

e Push [YY] or [ZZ] to select a character.
r Push [SQL] to move to forward; then push [YY] or [ZZ] to

select a character.

• Push [VOL] to move to backward.

t Repeat steps e and r to input all characters, then push

[16•

9] to return to normal operation.

• Available characters

(r)

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

(q)

(3)

(D)

(N)

(X)

(h)

(+)

(4)

(E)

(O)

(Y)

(i)

(5)

(F)

(P)

(Z)

(j)

(✱)

(6)

(G)

(Q)

(a)

(k)

(/)

(7)

(H)

(R)

(b)

(l)

(,)

(8)

(I)

(S)

(c)

(m)

(space)

(9)

(T)

(d)

(n)

(0)

(A)

(U)

(e)

(o)

(1)

(B)

(V)

(f)

(p)

(2)

(C)

(J) (K) (L)

(M)

(W)

(g)

(.)

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

( )

DW

DW

49

11

COMMANDMIC®HM-127

11

w To use the supplied cable as a wall socket, follow the

below steps.

e Using the mounting base, carefully mark off the 2 spots

where the cable and screws will be fastened.

r Drill holes at these marks.
t Install the mounting base using the supplied screws as

shown below.

y The completed installation should look like this.

Gasket

Cap

Mounting base

Nut

Screw holes
(approx. 2 (d) mm;

3

32″)

51

11

COMMANDMIC®HM-127

50 (d) mm; 1

31

⁄32˝

5 mm; 3⁄16˝

Cap

Nut

11

New2001New2001

Channel number

66A

Frequency (MHz)

66A

*1

USA CAN

Transmit

Receive

64A 64A 156.225 160.825

65A 65A 156.275 156.275

156.325 160.925

67

*2

67 156.375 156.375

68 68 156.425 156.425

69 69 156.475 156.475

70

*3

70

*3

156.525 156.525

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

*1

77

*1

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

INT

65A

66

67

68

69

70

*3

71

72

73

74

77

78

79

80

81

82

156.325 156.32566A

Channel number

84A

Frequency (MHz)

USA CAN

Transmit

Receive

83A 83A 157.175 157.175

84 84 157.225 161.825

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

INT

84

85

86

87

88

157.225 157.225

WX channel

4

Frequency (MHz)

Transmit Receive

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

156.275 160.87565

83 157.175 161.77583

83b Rx only 161.775

NOTE: Simplex channels, 3, 21, 23, 61, 64, 81, 82 and 83 CANNOT
be lawfully used by the general public in U.S.A. waters.

53

13

SPECIFICATIONS

DD

Receiver

• Receive system : Double conversion
superheterodyne

• Sensitivity (12 dB SINAD) : 0.22µV (typical)

• Squelch sensitivity : 0.22µV

• Intermodulation rejection ratio : More than 70 dB

•

Spurious response rejection ratio

: More than 70 dB

• Adjacent channel selectivity : More than 70 dB

• Audio output power : 4.5W (typical) at 10% distortion

with a 4 Ω load

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

13

Unit: mm (inch)

32.1 (1

1

4)

86.5 (3

13

32)

51 (2)

55

14

TEMPLATE

13
14

Unit: mm (inch)

1

32

)

15

32

)

67 (2

5

8

)

53 (2

3

32

)

MB-69

2 (

3

32

)

New2001

57

15

OPTIONS

15

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