Icom IC-M710RT User Manual

INSTRUCTION MANUAL

MF/HF MARINE TRANSCEIVER

iM710RT

IMPORTANT

EXPLICIT DEFINITIONS

READ THIS INSTRUCTION MANUAL CAREFULLY

before attempting to operate the transceiver.

SAVE THIS INSTRUCTION MANUAL—This manual
contains important safety and operating instructions for
the IC-M710RT MF/HF MARINE TRANSCEIVER.

PRECAUTIONS

RWARNING! NEVER connect the transceiver to an

AC outlet directly. This may pose a fire hazard or re­sult in an electric shock.

The explicit definitions described below apply to this
instruction manual.

WORD DEFINITION

RWARNING

CAUTION

NOTE

Personal injury, fire hazard or electric
shock may occur.

Equipment damage may occur.

If disregarded, inconvenience only. No risk
of personal injury, fire or electric shock.

☞ NOTE: The IC-M710RTGMDSS version has a

high-stability crystal oscillator unit. This unit draws a
slight current even when power to the transceiver
is OFF. To prevent battery exhaustion when dock­ing your vessel for extended periods, unplug the
DC cable from the DC power receptacle.

DO NOT use chemical agents such as benzene or al­cohol when cleaning, as they can damage the trans­ceiver’s surfaces.

RWARNING! NEVER mount the transceiver over-

head. The weight of the transceiver is approximately 8
kg., but its apparent weight will increase several fold
due to wave shocks and vibration. The transceiver
must be mounted on a flat hard surface only.

NEVER connect a power source of more than 16 V DC
such as a 24 volt battery. This connection will ruin the
transceiver.

NEVER place the transceiver where normal operation
of the ship or vehicle may be hindered or where it
could cause bodily injury.

Place unit in a secure place to avoid inadvertent use
by children.

NEVER expose the transceiver to rain, snow or any
liquids.

There are two types of grounding systems available for
the IC-M710RT—Negative Ground and Floating
Ground—NEVER install the negative ground type to a
plus-grounding ship. Such a connection might blow
fuses and is not usable.

In maritime mobile operation, KEEP the transceiver
and microphone as far away as possible (at least 1 m)
from the magnetic navigation compass to prevent er­roneous indications.

USE an Icom microphone and/or handset only (sup­plied or optional). Other brands may have different pin
assignments and may damage the transceiver.

AVOID using or placing the transceiver in areas with
temperatures below –20°C (–4°F) or above +60°C
(+140°F).

AVOID connecting the transceiver to a power source
using reverse polarity. This connection will not only
blow fuses but may also damage the transceiver.

AVOID placing the transceiver in excessively dusty en­vironments or in direct sunlight.

AVOID placing the transceiver against walls or putting
anything on top of the transceiver. This will obstruct
heat dissipation.

ii

IN CASE OF EMERGENCY (for maritime operation)

If your vessel requires assistance, contact other ves­sels and the Coast Guard by sending a distress call on
2182 kHz.

❍ USING 2182 kHz WITH VOICE

➀

Push [2182kHz] to select the emergency fre­quency.

➁ Push [ALARM] and [TX FREQ] for 1 sec. to trans-

mit a 2-tone alarm signal for at least 30 sec.

• The transceiver automatically stops the alarm after 50
sec.

➂ Push [ALARM] to turn the alarm transmission off,

then push and hold the PTT switch on the micro­phone and send the following information:

1. “MAYDAY, MAYDAY, MAYDAY.”

2. “THIS IS . . . . . . . . . . . ” (name of vessel)

3. “LOCATED AT . . . . . . . ” (vessel’s position)

4. Give the reason for the distress call.

5. Explain what assistance you need.

6. Give additional information:

• Vessel type

• Vessel length

• Vessel color

• Number of people onboard.

Or, transmit your distress call using digital selective
calling on 2187.5 kHz.

❍ USING DIGITAL SELECTIVE CALLING

(Only for GMDSS versions with an optional GM­110DSC

DSC TERMINAL UNIT

)

When immediate help is needed

➀

Push and hold [EMERGENCY] on the GM­110DSC for 5 sec., until the short beeps become
one long beep, to send the distress call.

➁ After 2182 kHz is automatically selected, transmit

the appropriate information as at left using voice.

When a potential problem exists

➀

Push [SEL] on the GM-110DSC, then select “all
ships call” with [ENT] and the DATA SELECTOR.

➁ Push and hold [CALL] on the GM-110DSC for 5

sec., until short beeps become one long beep, to
use the “all ships call” function.

➂ After the pre-selected frequency is selected,

transmit the appropriate information using voice.

• DSC equipped ships may monitor your transmission.

VERSIONS

The following versions are available for the
IC-M710RT:

Version

GMDSS

Marine

General

Ground type

Negative ground

and

Floating ground

Negative ground

and

Floating ground

Negative ground

only

Corrosion-resistant exterior.
High stability crystal and FSK narrow filter built-in.
Optional DSC terminal unit can be connected.
2182 kHz 2-tone alarm is built-in.

2182 kHz 2-tone alarm is built-in.
FSK/CW narrow filter is optional.
All SSB/FSK ITU channels available.

2182 kHz 2-tone alarm is optional.
FSK/CW narrow filter is optional.
ITU channels are optional.

Description

iii

TABLE OF CONTENTS

IMPORTANT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ii

EXPLICIT DEFINITIONS . . . . . . . . . . . . . . . . . . . . . ii

PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . ii

IN CASE OF EMERGENCY . . . . . . . . . . . . . . . . . . iii

VERSIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iii

TABLE OF CONTENTS . . . . . . . . . . . . . . . . . . . . . iv

1 OPERATING RULES AND GUIDELINES . . . . . . 1

2 PANEL DESCRIPTION . . . . . . . . . . . . . . . . . . 2–5

■ Front panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

■ Main unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

D HM-120 microphone keys . . . . . . . . . . . . . . . . . . . 4

■ Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

3 SELECTING A CHANNEL/FREQUENCY . . . . 6–8

■ Selecting a channel . . . . . . . . . . . . . . . . . . . . . 6

D Using the channel selector . . . . . . . . . . . . . . . . . . 6

D Using the keypad . . . . . . . . . . . . . . . . . . . . . . . . . . 7

D Scan functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

■ Selecting a frequency . . . . . . . . . . . . . . . . . . . . 8

D Using the channel selector . . . . . . . . . . . . . . . . . . 8

D Using the keypad . . . . . . . . . . . . . . . . . . . . . . . . . . 8

4 RECEIVE AND TRANSMIT . . . . . . . . . . . . . . 9–11

■ Basic voice receive and transmit . . . . . . . . . . . 9

■ Functions for transmit . . . . . . . . . . . . . . . . . . . . 9

D Transmit frequency check . . . . . . . . . . . . . . . . . . . 9

D Transmit power selection . . . . . . . . . . . . . . . . . . . . 9

■ Functions for receive . . . . . . . . . . . . . . . . . . . 10

D Squelch function . . . . . . . . . . . . . . . . . . . . . . . . . 10

D Noise blanker . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

D AGC off function . . . . . . . . . . . . . . . . . . . . . . . . . . 10

D RF gain setting . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

D Clarity control . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

■ CW operation . . . . . . . . . . . . . . . . . . . . . . . . . 11

■ FSK operation . . . . . . . . . . . . . . . . . . . . . . . . . 11

■ Cross channel operation . . . . . . . . . . . . . . . . . 11

6 SET MODE . . . . . . . . . . . . . . . . . . . . . . . . . . 12–15

■ Set mode operation . . . . . . . . . . . . . . . . . . . . 12

■ Set mode contents . . . . . . . . . . . . . . . . . . . . . 12

7 CONNECTIONS AND INSTALLATION . . . . 16–25

■ Supplied accessories . . . . . . . . . . . . . . . . . . . 16

■ Attaching 1 remote controller . . . . . . . . . . . . . 16

■ Attaching 2 remote controllers . . . . . . . . . . . . 17

D Set ID number . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

D Intercom operation . . . . . . . . . . . . . . . . . . . . . . . . 17

■ Attaching 2 remote controllers and a PC . . . . 18

■ Notes for remote control . . . . . . . . . . . . . . . . . 18

■ Connections on rear panel . . . . . . . . . . . . . . . 19

■ Connector information . . . . . . . . . . . . . . . . . . 20

■ Ground connection . . . . . . . . . . . . . . . . . . . . . 22

■ Power source . . . . . . . . . . . . . . . . . . . . . . . . . 22

■ Antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

D MN-100/MN-101L . . . . . . . . . . . . . . . . . . . . . . . . 23

D AT-130 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

D Non-Icom tuner . . . . . . . . . . . . . . . . . . . . . . . . . . 23

■ Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

D Mounting location . . . . . . . . . . . . . . . . . . . . . . . . . 24

D Mounting example . . . . . . . . . . . . . . . . . . . . . . . . 24

D Transceiver dimensions . . . . . . . . . . . . . . . . . . . . 24

■ Installing internal options . . . . . . . . . . . . . . . . 25

D Opening the case . . . . . . . . . . . . . . . . . . . . . . . . . 25

D Installing an optional filter and alarm unit . . . . . . 25

■ Fuse replacement . . . . . . . . . . . . . . . . . . . . . . 25

8 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . 26

9 SPECIFICATIONS AND OPTIONS . . . . . . . . . . 27

■ Specifications . . . . . . . . . . . . . . . . . . . . . . . . . 27

■ Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

5 USER CHANNEL PROGRAMMING . . . . . . . . . 12

■ Programming a frequency . . . . . . . . . . . . . . . 12

D Receive frequency . . . . . . . . . . . . . . . . . . . . . . . . 12

D Transmit frequency . . . . . . . . . . . . . . . . . . . . . . . 12

D Channel names . . . . . . . . . . . . . . . . . . . . . . . . . . 12

iv

OPERATING RULES AND GUIDELINES

1

❑ CALL PROCEDURES

Calls must be properly identified and time limits must
be respected.

➀ Give your call sign each time you call another vessel

or coast station. If you have no call sign, identify
your vessel name and the name of the licensee.

➁ Give your call sign at the end of each transmission

that lasts more than 3 min.

➂ You must break and give your call sign at least once

every 15 min. during long ship-to-shore calls.

➃ Keep your unanswered calls short, less than 30 sec.

Do not repeat a call for 2 min.

➄ Unnecessary transmissions are not allowed.

❑ PRIORITIES
➀

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.

➁ False or fraudulent distress calls are prohibited and

punishable by law.

❑ PRIVACY
➀

Information overheard but not intended for you can­not be lawfully used in any way.

➁ Indecent or profane language is prohibited.

❑ LOGS
➀

All distress, emergency and safety calls must be
recorded in complete detail. Log data activity is usu­ally recorded in 24 hour time. Universal Time (UTC)
is frequently used.

➁ Adjustments, repairs, channel frequency changes

and authorized modifications affecting electrical op­eration of the equipment must be kept in the main­tenance log; entries must be signed by the
authorized licensed technician performing or super­vising the work.

❑ RADIO LICENSES

(1) SHIP STATION LICENSE
You must have a current radio station license before
using the transceiver. It is unlawful to operate a ship
station which is not licensed.

Inquire through your dealer or the appropriate govern­ment agency for a Ship-Radiotelephone license appli­cation. This government-issued license states the call
sign which is your craft’s identification for radio pur­poses.

(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 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,
and ends the call, and makes the necessary log en­tries.

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

1

2

TUNE

DUP SIMP STANDBY

TX

RX

DSC

FSCAN

SQL N B

AGC

AGC

A43210

ALM

MICROPHONE

POWER

VOLUME

ALARM

TX FREQ

2182KHz

RESET

MODE

TUNE

MF/HF MARINE TRANSCEIVER

AGC SQL FUNC

CLARITY

NB

SPEAKER

[ALARM] [TX FREQ]+

FOR ALARM TX

DIMMER

GROUP CHANNEL

123

456

789

CE

RX TX

0

–

CH/FREQ

iM 710

q w e r t y u i !0

!1

o

!2!3!4!5 !6!7!8!9

PANEL DESCRIPTION

■ Front panel (controller)

2

q MICROPHONE CONNECTOR (p. 20)

Accepts the supplied microphone or an optional
handset.

☞ NOTE: No audio is output via the speaker when the

microphone or handset is not connected.

w POWER SWITCH [POWER]

Turns power on and off.

e SPEAKER SWITCH [SPEAKER]

Turns the built-in speaker on and off.

•“è” appears in the display while the speaker is turned

off.

• Any external speaker connected to the rear panel is not
turned off.

r DISPLAY INTENSITY SWITCH [DIMMER]

➥ Toggles the display backlight on and off.
➥ While pushing, rotate [CHANNEL] to adjust the

backlighting to one of 4 levels.

➥ While pushing, rotate [GROUP] to adjust the dis-

play contrast to one of 10 levels.

t VOLUME CONTROL [VOLUME]

Adjusts the audio output level.

• Audio does not come from the speaker when:

➟ A microphone is not connected.
➟ The [SQL] switch is turned on and no signal is being

received.

y GROUP CHANNEL SELECTOR [GROUP]

Selects groups in 20 channel steps and ITU marine
channel groups.

☞ NOTE: Some versions have no ITU channels.

u ANTENNA TUNE SWITCH [TUNE] (p. 9)

Tunes the connected tuner to the antenna.

• Activates only when an optional antenna tuner such as
Icom’s AT-130/E is connected.

☞ NOTE: When selecting “automatic tuning” in set

mode, pushing this switch is not necessary to tune
the antenna. (p. 13)

i CHANNEL SELECTOR [CHANNEL] (p. 6)

➥ Selects an operating channel within the selected

channel group such as ITU channels.

• User channels can be selected from 1 to 160 (max.)
in sequence regardless of the channel group.

➥ Changes the operating frequency* after [CE] is

pushed (while “s” appears).

• The changed frequency is not programmed in this
way.

o FUNCTION SWITCH [FUNC]

After pushing, activates the secondary functions of
these switches:
[RESET] . . Deactivates external control such as

from a DSC terminal unit when con-

nected.

[SQL] . . . . . Starts and stops scan (p. 7).

[SPEAKER] Activates intercom function (p. 17).

[RX] . . . . . . Sets RF gain (p. 10).

[TX] . . . . . . Selects transmit power (p. 9).

[CE] . . . . . . Reprograms the channel name (p.

12).

☞ NOTE: Function availability depends on version.

!0 CLARITY CONTROL [CLARITY] (p. 10)

Shifts the receive frequency ±150 Hz for clear re­ception of an off frequency signal.

PANEL DESCRIPTION

0

9

to

–

CH/FREQ

CE

TX

RX

2

!1 KEYPAD

➥ Enters the selected channel number (or fre-

quency*) for direct channel selection. (p. 7)

➥ Stores a receive frequency into a user chan-

nel or ITU simplex channel when:

• pushing [CE] (“s” appears)

• entering the desired frequency via the keypad

• pushing and holding [RX] (p. 12)

➥ Adjusts the RF gain after pushing [FUNC] to

reduce the receiver sensitivity. (p. 10)

➥ Stores a transmit frequency into a user chan-

nel (except General versions) when:

• pushing [TX] (“$” flashes)

• pushing [CE] (“s” appears)

• entering the desired frequency via the keypad

• pushing and holding [TX] (p. 12)

➥ Selects the transmitter channel for cross

channel operation (Europe versions only)
when:

• pushing [TX] (“$” flashes)

• entering the desired channel number via the key-

pad

➥ Selects the transmit output power after push-

ing [FUNC]. (p. 9)

➥ Toggles the channel number input and fre-

quency input.* (p. 8)

•“s” appears when frequency input* is selected.

• The channel selector and keypad changes the

frequency while “s” appears.

➥ Clears the entered digit and retrieves the pre-

vious channel (or frequency*) while entering
numbers. (p. 7)

➥ Enters the name programming condition,

after pushing [FUNC], for changing the chan­nel name. (p. 12)

➥ Toggles the channel and frequency indica-

tions. (p. 6)

➥ Enters “–” for ITU simplex channels. (p. 7)

➥ Enter channel number with up to 4 or 5 digits

when “s” does not appear. (p. 7)

➥ Enter the frequency with up to 6 digits* when

“” appears. (p. 8)

!4 AGC OFF SWITCH [AGC] (p. 10)

Deactivates the AGC function to receive weak sig­nals blocked by strong adjacent signals.

•“ê” appears when the [AGC] switch is turned on

(stands for AGC deactivated).

!5 MODE SWITCH [MODE] (p. 9)

Selects an operating mode temporarily. Available
modes differ with version.

• J3E (USB), H3E, J2B (AFSK), FSK, R3E and A1A (CW)
modes are available.

• The temporary mode is cleared and the previous mode
appears when changing a channel.

!6 OVEN INDICATOR (GMDSS version only)

Internal high-stability crystal oscillator unit contains
a temperature-compensating oven heater. This
high-stability crystal oscillator improves frequency
stability.

•“STANDBY” appears when power to the main unit is
turned off.

!7 TRANSMIT FREQUENCY SWITCH [TX FREQ]

(p. 9)
Displays the transmit frequency and opens the
squelch to check and monitor the transmit fre­quency.

!8 2182 kHz SELECTION SWITCH

[2182kHz •

RESET

] (p. iii)

➥ Selects channel 0 (2182 kHz; distress call fre-

quency).

• The channel selector does not function when select­ing channel 0.

➥ Ignores external control and gives the front panel

control priority when an external controller
(NMEA format) is connected.

!9 ALARM SWITCH [ALARM] (p. iii)

➥ Emits a distress alarm signal from the speaker.
➥ Transmits a distress alarm or alarm testing signal

when pushed together with the [TX FREQ]
switch.

☞ NOTE: General versions are not equipped with this

[ALARM] switch.

!2 SQUELCH SWITCH [SQL] (p. 10)

➥ Activates the voice squelch function to reject un-

desired background noise while no signal is
being received.

• The squelch opens only when the received signal
contains no voice or FSK components.

➥ Starts and stops the scan function after pushing

[FUNC]. (p. 7)

!3 NOISE BLANKER SWITCH [NB] (p. 10)

Turns the noise blanker function on to remove
pulse-type noise such as engine ignition noise.

•“NB” appears when the function is turned on.
*Some versions do not have frequency selection and fre-

quency indication.

3

2

q

t

w er

PANEL DESCRIPTION

■ Main unit (controller detached)

q RS-232C CONNECTOR (p. 18)

Connects the IC-M710RT to a PC via an RS-232C
cable for remote control of transceiver function
using the optional RS-710RT software.

w POWER INDICATOR

Appears while power is turned on.

e CONTROLLER CONNECTOR

Connects the main body of the IC-M710RT to the
front panel (controller) when detached from the
main body.

r CONTROLLER CONNECTOR (pgs. 16, 17)

Same as above.

t POWER SWITCH

Same function as the power switch ([POWER]) on
the front panel.

• Only available on the Europe and GMDSS versions.

D HM-120 microphone keys

The “P” key on the HM-120
set to function as the [MODE], [NB], [AGC], [SQL] or
[TUNE] keys on the remote controller. (The YZ keys
function the same as the [CHANNEL] selector). Also,
using set mode (p. 15) these keys can be deactivated
if desired.

While pushing [P] on the microphone and the switch
on the remote controller whose function you want to
assign (see above), turn power ON.

• Repeat this to assign a different key.

HAND MICROPHONE

can be

4

■ Display

TUNE

DUP SIMP

TX

RX

DSC

FSCAN

SQL N B

AGC

AGC

A43210

ALM

q

w

e

r

t

yu io!0

!1

!2

!3!4!5!6!7

PANEL DESCRIPTION

2

q ALARM INDICATOR (p. iii)

Appears when the alarm function is activated such
as for an alarm test or distress alarm transmission.

• Not available in General version.

w RECEIVE INDICATOR (p. 10)

Appears while receiving and when the squelch is
open.

e TUNE INDICATOR (p. 9)

Flashes while the connected antenna tuner, such as
Icom’s AT-130, is being tuned.

• Tuning starts when transmitting on a new frequency or

pushing the [TUNE] switch.

r TRANSMIT INDICATOR

➥ Appears when transmitting. (p. 9)
➥ Flashes when the [TX] key is pushed for transmit

frequency programming. (p. 12)

t DSC INDICATOR (p. iii)

Appears when an optional GM-110DSC

NAL UNIT

• The GM-110DSC can be connected to GMDSS versions
only.

y S/RF METER

➥ Shows the relative received signal strength while

➥ Shows output power while transmitting.
➥ Shows antenna current level when an optional

u CHANNEL/VFO INDICATOR

➥ Shows the pre-programmed channel name (al-

➥ Shows the transmit frequency during frequency

➥ Shows transmit channel number during cross

controls transceiver functions.

receiving.

AT-130E
versions only).

HF ANTENNA TUNER

is connected (Europe

phanumeric) during channel indication. (p. 6)

• Some versions have no channel name function and
show receive frequency instead.

indication. (p. 6)

channel operation (Europe versions only). (p. 11)

DSC TERMI

i SQUELCH INDICATOR (p. 10)

Appears when the squelch is on.

o SCAN INDICATOR (p. 7)

Appears when the scan function is in use.

• The scan function is not available on some versions.

• Pushing [FUNC] then [SQL] starts and stops scan.

!0 FUNCTION INDICATOR

Appears when the [FUNC] switch is pushed.

!1 NOISE BLANKER INDICATOR (p. 10)

Appears when the [NB] switch is turned on.

!2 AGC OFF INDICATOR (p. 10)

Appears when the [AGC] switch is pushed to indi­cate the AGC function is deactivated.

!3 MODE READOUT

Shows the selected operating mode (type of emis­sion).

-

!4 SPEAKER OFF INDICATOR

Appears when the [SPEAKER] switch is pushed to
indicate the front panel speaker is deactivated.

!5 CHANNEL READOUT

➥ Shows the selected channel number during

channel indication. (p. 6)

➥ Shows the receive frequency during frequency in-

dication. (p. 9)

!6 SIMPLEX/DUPLEX INDICATORS

These appear to show whether the selected chan­nel is simplex or duplex.

!7 FREQUENCY INDICATORS (p. 8)

Appear when the frequency entry condition* is se­lected for frequency selection.

• The [CE] key toggles the indicator ON and OFF.
* Some versions have no frequency entry condition.

5

3

DUP

TX

RX

DSC

F

AGC

ALM

DUP

TX

RX

DSC

F

AGC

ALM

DUP

TX

RX

DSC

F

AGC

ALM

DUP

TX

RX

DSC

F

AGC

ALM

CHANNEL INDICATION

FREQUENCY INDICATION

CHANNEL SELECTION MODE

Channel can be selected

FREQUENCY SELECTION MODE
Frequency can be changed

CH/FREQ

CE

AGC

SELECTING A CHANNEL/FREQUENCY

■ Selecting a channel

The transceiver has 160 user channels and ITU chan­nels. However, the number of user channels can be
optionally restricted and ITU channels are not available
with some versions.

☞ NOTE: Channel name (alphanumeric) may not

appear during channel indication depending on
set mode settings (p. 14).

D Using the channel selector

The transceiver has two large controls for group se­lection and channel selection. The [GROUP] selector
changes channels in 20 channel increments and se­lects ITU channel groups*; and the [CHANNEL] se­lector selects each channel.

➀ Make sure no “s” indicator appears on the display.

ALM
RX

TX
DSC

➁ Rotate the [GROUP] selector to select the desired

channel group as shown at right and/or below.

➂ Rotate the [CHANNEL] selector to select the de-

sired channel.

DUP

F

If appears, push [CE] to delete it.

☞ NOTE: When channel 0 and/or 2182 kHz is se-

lected with the [2182KHz] switch, channel selection
is NOT possible. In such cases, push [2182KHz] in
advance.

[EXAMPLE]: Selection with the [GROUP] selector

1 J3E

WWV

21 J3E

KMI

41 J3E

WOM

61 J3E

WOO

121 J3E

FAX

141 J3E

SHP/SHP

401 J3E

4.357.0

4-1 J3E

4A LTD

601 J3E

6.501.0

2501 J3E

26.145.0

25-1 J3E

FAX

4001 FSK

4.210.5

ITU SSB channels*

ITU FSK

channels*

CHANNEL GROUPS

CHANNEL NO. DESCRIPTION
1 to 160 User channels*
401 to 427 4 MHz ITU duplex channels
4-1 to 4-9 4 MHz ITU simplex channels

6

601 to 608 6 MHz ITU duplex channels
6-1 to 6-9 6 MHz ITU simplex channels
801 to 832 8 MHz ITU duplex channels
8-1 to 8-9 8 MHz ITU simplex channels
1201 to 1241 12 MHz ITU duplex channels
12-1 to 12-9 12 MHz ITU simplex channels

*1[GROUP] selector changes in 20 channels steps.
*2SITOR use—no group separation.

1

*All ITU channels are not available with some versions and ITU

FSK channels can be hidden using set mode. (p. 13)

CHANNEL NO. DESCRIPTION

1601to 1656 16 MHz ITU duplex channels
16-1 to 16-9 16 MHz ITU simplex channels
1801 to 1815 18 MHz ITU duplex channels
18-1 to 18-9 18 MHz ITU simplex channels
2201 to 2253 22 MHz ITU duplex channels
22-1 to 22-9 22 MHz ITU simplex channels

25-1 to 25-9 25 MHz ITU simplex channels
4001 to 25040 ITU FSK duplex channels*

2

2501 to 2510 25 MHz ITU duplex channels