Icom IC-2710H User Manual

INSTRUCTION MANUAL

DUAL BAND FM TRANSCEIVER

iC- 2710h

IMPORTANT

CAUTIONS

READ ALL INSTRUCTIONS carefully and completely before
using the transceiver.

SAVE THIS INSTRUCTION MANUAL—This instruction man­ual contains important operating instructions for the
IC-2710H.

RWARNING! NEVER connect the transceiver to an

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

RWARNING! NEVER operate the transceiver while

driving a vehicle. Safe driving requires your full attention—
anything less may result in an accident.

NEVER connect the transceiver to a power source of more

EXPLICIT DEFINITIONS

The explicit definitions below apply to this instruction manual.

WORD DEFINITION

RWARNING

CAUTION

NOTE

i

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.

The IC-2710H Europe versions comply with essential re­quirements of the 89/336/EEC directive for Electromagnetic
Compatibility. This compliance is based on conformity with
the ETSI specification prEIS300 684 (EMC product standard
for Commercially Available Amateur Radio Equipment).

than 16 V DC. This connection will ruin the transceiver.

NEVER connect the transceiver to a power source using

reverse polarity. This connection will ruin the transceiver.

NEVER cut the DC power cable between the DC plug and

fuse holder. If an incorrect connection is made after cutting,
the transceiver might be damaged.

NEVER place the transceiver where normal operation of

the vehicle may be hindered or where it could cause bodily
injury.

NEVER let objects impede the operation of the cooling fan

on the rear panel.

DO NOT push the PTT when not actually desiring to transmit.

DO NOT allow children to play with any radio equipment

➀➁ ➂

➃

➄

➅➉

➆

➇
➈

containing a transmitter.

UNPACKING

During mobile operation,
without running the vehicle’s engine. When transceiver power
is ON and your vehicle’s engine is OFF, the vehicle’s battery
will soon become exhausted.

DO NOT operate the transceiver

BE CAREFUL! The transceiver will become hot when

operating it continuously for long periods.

AVOID using or placing the transceiver in areas with tem-

peratures below –10°C (+14°F) or above +60°C (+140°F) or
in areas subject to direct sunlight, such as the dashboard.

AVOID the use of chemical agents such as benzine or al-

cohol when cleaning, as they can damage the transceiver
surfaces.

USE Icom microphones only (supplied or optional). Other

manufacturer’s microphones have different pin assignments
and may damage the transceiver.

Accessories included with the transceiver:

Qty.

➀ DC power cable (OPC-346)............................................. 1

➁ Mobile mounting bracket ................................................. 1

➂ Microphone (HM-98)........................................................ 1

➃ Fuse (20 A)...................................................................... 1

➄ Knob bolt (M4 x 8) ........................................................... 4

➅ Mounting bolt (M5 x 12)................................................... 4

➆ Nut (M5)........................................................................... 4

➇ Spring washer (M5)......................................................... 4

➈ Flat washer (M5).............................................................. 4

➉ Self-tapping screws (A0 5 x 16)....................................... 4

ii

TABLE OF CONTENTS

IMPORTANT .................................................................................... i

EXPLICIT DEFINITIONS ................................................................. i

CAUTIONS ...................................................................................... i

UNPACKING ................................................................................... ii

TABLE OF CONTENTS ................................................................. iii

1 PANEL DESCRIPTION ....................................................... 1 – 8

■ Front panel ........................................................................................... 1

■ Function display ................................................................................... 3

■ Rear panel ............................................................................................ 5

■ Microphone .......................................................................................... 6

■ Microphone keypad .............................................................................. 7

2 INSTALLATION ................................................................. 9 – 14

■ Installation methods ............................................................................. 9

■ Location .............................................................................................. 10

■ Single body installation ...................................................................... 10

■ Microphone connection ...................................................................... 11

■ Separate installation ........................................................................... 11

■ Optional MB-58 installation ................................................................ 12

■ Battery connection ............................................................................. 13

■ DC power supply connection ............................................................. 13

■ Antenna installation ............................................................................ 14

3 SETTING A FREQUENCY .............................................. 15 – 19

■ Preparation ......................................................................................... 15

■ Lock functions .................................................................................... 16

■ Using a tuning dial .............................................................................. 17

■ Using [Y]/[Z] switches ....................................................................... 17

■ Tuning step selection ......................................................................... 18

■ Using the keypad ............................................................................... 19

4 BASIC OPERATION ....................................................... 20 – 26

■ Receiving ........................................................................................... 20

■ Monitor function .................................................................................. 21

■ Audio mute function ........................................................................... 21

■ Avionics band receive ........................................................................ 21

■ Sub band access ................................................................................ 22

■ Sub band mute/sub band busy beep ................................................. 23

■ Para-watch ......................................................................................... 24

■ Transmitting ........................................................................................ 25

■ Selecting the output power ................................................................. 25

■ Crossband full duplex ......................................................................... 26

■ One-touch PTT function ..................................................................... 26

5 REPEATER OPERATION ............................................... 27 – 31

■ Operation ........................................................................................... 27

■ Subaudible tones ............................................................................... 29

■ Offset frequency ................................................................................. 30

■ Auto repeater ..................................................................................... 31

6 MEMORY OPERATION .................................................. 32 – 36

■ General description ............................................................................ 32

■ Memory channel selection ................................................................. 32

■ Programming a memory channel ....................................................... 33

■ Programming a memory channel via the microphone .......................... 34

■ Transferring memory contents ........................................................... 35

■ Memory clearing ................................................................................. 36

7 CALL CHANNEL OPERATION ...................................... 37 – 38

■ Calling up a call channel contents ...................................................... 37

■ Transferring call channel contents ..................................................... 37

■ Programming a call channel ............................................................... 38

8 SCRATCH PAD MEMORY .............................................. 39 – 40

■ What is a scratch pad memory? ......................................................... 39

iii

■ Calling up a scratch pad memory ....................................................... 39

■ Transferring scratch pad memory contents ........................................ 40

9 SCAN OPERATION ........................................................ 41 – 46

■ Scan types ......................................................................................... 41

■ Start/stop scan ................................................................................... 42

■ Programming scan edges .................................................................. 43

■ Programming scan edges via the microphone ................................... 44

■ Skip channel setting ........................................................................... 45

■ Scan resume condition ....................................................................... 46

10 PRIORITY WATCH .......................................................... 47 – 48

■ Priority watch types ............................................................................ 47

■ Priority watch operation ...................................................................... 48

11 DTMF MEMORY ENCODER .......................................... 49 – 52

■ Programming a DTMF code ............................................................... 49

■ Clearing the DTMF memory contents ................................................ 49

■ Programming a DTMF code via the microphone ............................... 50

■ Transmitting a DTMF code ................................................................. 51

■ DTMF speed ...................................................................................... 52

12 POCKET BEEP AND TONE SQUELCH ........................ 53 – 55

■ Pocket beep operation ....................................................................... 53

■ Tone squelch operation ...................................................................... 54

■ Tone scan ........................................................................................... 55

13 PAGER AND CODE SQUELCH ..................................... 56 – 62

■ Pager function .................................................................................... 56

■ Code channels ................................................................................... 57

■ Code programming ............................................................................ 58

■ Pager operation .................................................................................. 59

■ Code squelch function ........................................................................ 61

■ Code squelch operation ..................................................................... 62

14 EXTERNAL DTMF REMOTE .......................................... 63 – 64

15 OPTIONAL UNIT INSTALLATION ......................................... 65

■ Optional unit installation ..................................................................... 65

16 WIRELESS OPERATION ................................................ 66 – 71

■ Connection ......................................................................................... 66

■ HM-90

■ EX-1759 installation ........................................................................... 67

■ HM-90 switches .................................................................................. 68

■ Microphone address ........................................................................... 71

WIRELESS MICROPHONE

............................................................ 66

17 OTHER FUNCTIONS ...................................................... 72 – 74

■ Beep tones on/off ............................................................................... 72

■ Time-out timer .................................................................................... 72

■ Auto power-off .................................................................................... 73

■ Cooling fan setting ............................................................................. 73

■ Microphone [F-1]/[F-2] keys ............................................................... 74

■ Display dimmer setting ....................................................................... 74

■ Demonstration display ........................................................................ 74

18 MAINTENANCE .............................................................. 75 – 77

■ Troubleshooting .................................................................................. 75

■ Fuse replacement .............................................................................. 77

■ Partial resetting .................................................................................. 77

■ Total resetting ..................................................................................... 77

19 SPECIFICATIONS .................................................................. 78

20 OPTIONS ........................................................................ 79 – 80

21 MODE ARRANGEMENT CHART ................................... 81 – 82

iv

1

V MHz

SCAN

S.MW MW

LOW DUP POWER DTMF T

MONI

SQL

MONI

SQL

SET L

VOL

SET D

VOL

M CALL

PRIO

V MHz

SCAN

S.MW MW

M CALL

PRIO

LOCK

VFO

CALLMRSUB

BAND

F-2

F-1

Function display (p. 3)

PANEL DESCRIPTION

■ Front panel (remote controller)

q POWER SWITCH [POWER]

Turns power ON and OFF when pushed for 1 sec.

w TUNING DIALS

➥ Select the operating frequency (p. 17), the memory

channel (p. 32), the contents of the set mode display
(p. 82) and the scanning direction. (p. 42)

➥ Select the main band when pushed. (p. 15)
➥ When the sub band is selected, activate the sub band

function when pushed and held. (p. 22)

➥ When the main band is selected, change the operating

band (for para watch) when pushed and held. (p. 24)

e SQUELCH CONTROLS [SQL(MONI)]

➥ Vary the squelch level. (p. 20)

• RF attenuator activates and increases the attenuation when
rotated clockwise to the center position and further.

➥ Toggles squelch opened and closed when pushed.

• Transmit frequency is automatically selected when squelch
opens.

r VOLUME CONTROLS [VOL(SET L)]/[VOL(SET D)]

➥ Adjust the audio levels. (p. 20)
➥ Select set mode when pushed. (p. 82)
➥ Toggles the lock function ON/OFF when pushed and

held [SET

(L)]. (p. 16)

➥ Allows you to adjust the display brightness when

1

pushed and held [SET

(D)]. (p. 74)

t VFO/MHz SWITCHES [V/MHz(SCAN)]

➥ Select and toggle VFO mode and 1 MHz tuning display.
➥ Start a scan when pushed and held. (p. 42)

y MEMORY/CALL CHANNEL SWITCHES

[M/CALL(PRIO)]

➥ Select and toggle memory mode or a call channel.

(pgs. 32, 37)

➥ Activate the priority watch function when pushed and

held. (p. 47)

u SELECT MEMORY/MEMORY WRITE SWITCHES

[S.MW(MW)]

➥ Select a memory channel for programming. (p. 33)
➥ Program selected memory when pushed and held. (p. 33)

i OUTPUT POWER/DUPLEX SWITCH [LOW(DUP)]

➥ Each push changes the output power selection. (p. 25)

• There are 3 output powers available: low, mid and high.

➥ Push and hold to select a duplex setting. (p. 27)

• There are 3 duplex settings available: minus duplex (“–
DUP” appears, plus duplex (“+ DUP” appears) and simplex.

o DTMF/TONE SWITCH [DTMF(T)]

➥ Turns DTMF memory encoder ON and OFF for au-

topatch operation. (p. 49)

• When an optional UT-49 is installed, activates the DTMF
memory, pager or code squelch function in sequence.

➥ Turns the subaudible tone encoder ON and OFF for re-

peater access when pushed and held. (p. 27)

• When an optional UT-104 is installed, activates the subaudi­ble tone encoder, pocket beep or tone squelch function in
sequence.

PANEL DESCRIPTION

!0 MICROPHONE

➥ To connect the supplied microphone, detach the front

panel in advance.

➥ Multi-function keypad can be accessed by removing

the keypad cover. (p. 7)

• Be careful not to lose the cover.

!1 FRONT PANEL RELEASE LATCH

While pushing this latch, slide the front panel to the left to
remove it.

!2 MICROPHONE CONNECTOR

Connect the supplied microphone or optional EX-1759

FRARED RECEIVER

!3 CABLE GUTTERS

Pass the microphone cable through one of the gutters
when attaching the front panel.

!4 MICROPHONE RELEASE

Push to release the microphone.

. (p. 11)

1

IN

-

2

1

BUSY

LOW

LOW

MUTE

PRIO

DUP

SKIP SKIP

BUSY

MUTE

PRIO

–

T SQL

DUP

–

TSQL

TOT

AO

REMO

q

wert y ui

o
!0

!1

q
o
!0
!1

!2!3!4!5!6 !2!3!4!5!6!7

werty

PANEL DESCRIPTION

■ Function display

q SUB BAND ACCESS INDICATORS (p. 22)

Appear when the sub band access function is activated
and indicate the function control band via the microphone
and some front panel switches (except transmitting).

w MAIN BAND INDICATORS (p. 15)

Indicate the main band for transmit and function control.

e TRANSMIT INDICATORS (p. 25)

➥ Appear while transmitting.
➥ Flash while transmitting with the one-touch PTT func-

3

tion (p. 26).

r FREQUENCY READOUTS

Show the operating frequency, set mode contents, etc.

• The decimal point of the frequency flashes while scanning.
(p. 42)

•“d” appears in place of the 100 MHz while the DTMF memory
function is in use; when optional units are installed, “P, ” or “C”
appears in place of the 100 MHz while the pager or code
squelch functions are in use, respectively. (pgs. 49, 59, 61)

t DUPLEX INDICATORS (p. 27)

“DUP–” or “DUP” appear during semi-duplex operation (re­peater operation).

y TONE INDICATORS

➥ “T” appears while the subaudible tone encoder is in

use. (p. 27)

➥ “T SQL” appears while the optional tone squelch func-

tion is in use. (p. 54)

➥ “T SQLS” appears while the optional pocket beep

function is in use. (p. 53)

PANEL DESCRIPTION

1

u EXTERNAL DTMF CONTROL INDICATOR (p. 63)

Appears when the optional external DTMF control function
is in use.

• Available for the U.S.A. version only.

i TOT (TIME-OUT TIMER) INDICATOR (p. 72)

Appears while the time-out timer has been activated.

o AUDIO MUTE INDICATORS (p. 21)

Appear when the audio mute function is activated via mi­crophone control.

• This function is cancelled when any switch or control is oper­ated.

!0 PRIORITY WATCH INDICATORS (p. 48)

Appear while the priority watch is activated; flash while the
watch is paused.

!1 OUTPUT POWER INDICATORS (p. 25)

➥ “LOW” appears for low output power. (5 W)
➥ “LOW ★” appears for mid output power. (10 W)
➥ No indicator appears for high output power.

!2 MEMORY CHANNEL READOUTS

➥ Show the selected memory channel numbers. (p. 32)
➥ Only 2 capital “L”’s appear while the frequency lock

function is in use. (p. 16)

➥ A capital “C” appears while on a call channel (p. 37)
➥ “L1–L3” appear when a scratch pad memory is se-

lected. (p. 39)

➥ A small “c” appears when VFO mode is selected from

the call channel or a scratch pad memory (pgs. 37, 39)

!3 SKIP INDICATORS (p. 45)

Appear when the displayed memory channel is specified
as a skip channel.

!4 MEMORY INDICATORS (p. 32)

Appear when memory mode is selected.

!5 S/RF INDICATORS (p. 25)

➥ Show the relative signal strength while receiving sig-

nals.

➥ Show the output power selection while transmitting.

!6 BUSY INDICATORS (p. 20)

Appear while a signal is being received or the squelch is
open.

!7 AUTO POWER-OFF INDICATOR (p. 73)

Appears while the auto power-off function is in use.

4

1

q

w
e

r

PANEL DESCRIPTION

■ Rear panel

q ANTENNA CONNECTOR [ANT]

Accepts a 50 Ω dual band antenna with a PL-259 connec­tor. (p. 14)

w SPEAKER JACK 1 [144 MHz SP]

Connects a 4–8 Ω speaker, if required. Outputs the 144
MHz band’s audio. See the table at right for details.

e SPEAKER JACK 2 [430(440) MHz SP]

Connects a 4–8 Ω speaker, if required. Outputs both
band’s audio when [430(440) MHz SP] has no connection.

r POWER RECEPTACLE [DC13.8V]

Accepts 13.8 V DC with the supplied DC power cable.

5

D Speaker information

Connected
speaker

With no exter­nal speakers

[144 MHz SP]
only

[430(440) MHz
SP] only

2 external
speakers

VHF band audio UHF band audio

Internal speaker (mixed audio)

External speaker

External speaker (mixed audio)

External speaker via
[144 MHz SP]

Internal speaker

External speaker via
[430(440) MHz SP]

PANEL DESCRIPTION

LOCK

VFO

CALLMRSUB

BAND

MW

FUNC

A

CLR

D-OFF

B

SET

PTT-M

3

PRIO

DTMF

6

LOW

AFC-OFF

2

SCAN

CSQL

5

MID

AFC

1

MONI

PGR

4

HIGH

T-OFF

C

ENT

TSQL

9

SIMP

16

KEY LOCK

#

TSQLS

8

DUP+

TONE-2

0

TONE

7

DUP

TONE-1

F-2

F-1

DTMF-S

MUTE

D

SQLSQLVOLVOL

Mic element

q

w

e

r

t

y

u

i

o

1

■ Microphone

q UP/DOWN SWITCHES [Y]/[Z]

➥ Push either switch to change the operating frequency,

➥ Push and hold either switch to start scanning. (p. 42)

w PTT SWITCH

➥ Push and hold to transmit; release to receive. (p. 25)

memory channel, set mode contents, etc. (pgs. 17, 32)

➥ Toggles between transmitting and receiving while the

one-touch PTT function is in use. (p. 26)

e VFO SWITCH [VFO(LOCK)]

➥ Push to select VFO mode.
➥ Push and hold to toggle the lock function ON and OFF.

r MEMORY SWITCH [MR(CALL)]

➥ Push to select memory mode. (p. 32)
➥ Push and hold to select the call channel. (p. 37)

t ACTIVITY INDICATOR

Lights red while a key is pushed; lights green while the
one-touch PTT function is in use.

y BAND SWITCH

➥ Push to toggle the main band. (p. 15)
➥ Push and hold to turn the sub band access function ON

and OFF. (p. 22)

u FUNCTION SWITCHES [F-1]/[F-2] (p. 74)

Assign your desired key function from the front panel
switches.

• Default settings are VHF and UHF tuning dials to [F-1] and [F-2],
respectively for quick band selection.

i FUNCTION INDICATOR

➥ Lights yellow while [FUNC] is activated—indicates the

secondary function of switches can be accessed.

➥ Lights green when [DTMF-S] is activated—DTMF sig-

nals can be transmitted with the keypad. (p. 51)

o KEYPAD

Used for controlling the transceiver, transmitting a DTMF
encoder, etc. See pgs. 7 and 8 for function details.

6

1

FUNC

DTMF-S

PANEL DESCRIPTION

■ Microphone keypad

KEY

AFC

MONI

AFC-OFF

SCAN

2

FUNCTION

Toggles between opening and closing the

1

accessed band’s squelch. (p. 20)

• Starts and stops scanning. (p. 42)

• Starts tone scan when an optional tone

SECONDARY FUNCTION (after )

No secondary function.

No secondary function.

OTHER FUNCTIONS

squelch is in use. (p. 55)

PTT-M

PRIO

3

PGR

HIGH

4

CSQL

MID

5

DTMF

LOW

6

TONE

DUP–

7

TSQLS

DUP+

8

TSQL

SIMP

9

TONE-2

0

VOL

Starts and stops priority watch. (p. 48)

Selects high output power. (p. 26) Turns the optional pager function ON.(p. 59)

Selects middle output power. (p. 26) Turns the optional code squelch function

Selects low output power. (p. 26)

Selects –duplex. (p. 28)

Selects +duplex. (p. 28)

Selects simplex (p. 28)

Increases the audio output. (p. 20)

Turns the one-touch PTT function ON and
OFF. (p. 26)

ON. (p. 62)

Turns the DTMF memory encoder function
ON. (p. 50)

Turns the subaudible tone encoder ON.

(p. 28)

Turns the optional pocket beep function ON.

(p. 53)

Turns the optional tone squelch function
ON. (p. 54)

While being pushed, transmits a 1750 Hz
tone. (p. 28)

After :

Transmit the appropriate
DTMF code or push [1] to
[8] to transmit the DTMF
memory contents when
the DTMF memory en­coder is activated. (p. 51)

7

PANEL DESCRIPTION

FUNC

DTMF-S

1

KEY FUNCTION

• Clears a digit before entry. (p. 19)

• Cancels the scan, priority watch, pager,

MW

CLR

code squelch or DTMF memory function.

A

(pgs. 42, 48, 51, 59, 62)

D-OFF

SET

Enters set mode and advances the set
mode selection order. (p. 82)

B

• Sets the keypad for numeral input.

T-OFF

ENT

C

• Decreases the set mode selection order
after entering set mode. (p. 82)

MUTE

SQL

16

KEY LOCK

TONE-1

Increases the squelch level. (p. 20)

• The [SQL] control on the front panel has prior-

D

ity when rotated.

Decreases the squelch level. (p. 20)

• The [SQL] control on the front panel has prior-

#

SQL

ity when rotated.

Decreases the audio output. (p. 20) Sends a 1750 Hz tone signal for 1 sec.

VOL

M

(p. 19)

SECONDARY FUNCTION (after )

• Writes the VFO contents into the memory
channel or call channel. (pgs. 34, 38)

• Advances the memory channel number
when continuously pushed after program­ming is completed. (p. 34)

Turns the pager, code squelch, DTMF mem­ory or DTMF remote function OFF.

(pgs. 59, 62, 63)

Turns the subaudible tone encoder, pocket
beep or tone squelch OFF. (pgs. 28, 53, 54)

Mutes both band’s audio signals. (p. 21)

• Mute function is released when any operation is
performed.

Locks the digit keys on the keypad (including
the A–D, # and

keys. (p. 16)

M

(p. 28)

OTHER FUNCTIONS

After :

Transmit the appropriate
DTMF code. (p. 51)

8

2

INSTALLATION

■ Installation methods

D Single body installation

• It is not necessary to purchase a mounting bracket. The
supplied mounting bracket (or optional MB-17A) can be
used for installation.

9

D Separate installation

Front panel

Main body

• Optional OPC-600
OPC-601 (7.0 m; 23.0 ft) is necessary.

• Optional MB-58
for front panel mounting.

• Optional MB-65
front panel mounting possibilities (MB-58 is necessary).

• Optional OPC-440
OPC-647 (2.5 m; 8.2 ft) are available to extend the micro­phone cable.

• Optional OPC-441
able to extend the speaker cable.

SEPARATION CABLE

REMOTE CONTROLLER BRACKET

MOUNTING BASE

MICROPHONE CABLE

SPEAKER CABLE

(3.5 m; 11.5 ft) or

is available for increasing

(5.0 m; 16.4 ft) and

(5.0 m; 16.4 ft) is avail-

is available

INSTALLATION

20°

Mounting nut

Mounting
bracket

When using
self-tapping
screws.

Nut

Spring washer

Flat washer

Flat washer

Spring
washer

2

■ Location

Select a location which can support the weight of the trans­ceiver and does not interfere with driving in any way. We rec­ommend the locations shown in the diagram below.

NEVER place the transceiver or remote controller where

normal operation of the vehicle may be hindered or where
it could cause bodily injury.

NEVER place the transceiver or remote controller where

air bag deployment may be obstructed.

DO NOT place the transceiver or remote controller where

hot or cold air blows directly onto it.

AVOID placing the transceiver or remote controller in di-

rect sunlight.

• EXAMPLE INSTALLATION LOCATIONS

■ Single body installation

➀ Drill 4 holes where the mounting bracket is to be installed.

• Approx. 5.5–6 mm (3⁄16 in) when using nuts; approx. 2–3 mm (1⁄16
in) when using self-tapping screws.

➁ Insert the supplied screws, nuts and washers through the

mounting bracket and tighten.

➂ Adjust the angle for the clearest view of the function dis-

play.

10

2

mic release

Push

Release
button

OPC-600 or OPC-601

Rear of front panel Main body

➇➀

INSTALLATION

■ Microphone connection

The microphone connector is located behind the front panel.
Connect the supplied microphone as follows:

➀ Push the release button, then detach the remote controller

as shown below.

➁ Connect the supplied microphone to the microphone con-

nector.

Microphone pin assignments

➀ 8 V OUT
➁ Freq. up/down
➂ 8 V control IN
➃ PTT
➄ Mic AF (–)
➅ Mic AF (+)
➆ Ground
➇ Data IN

■ Separate installation

Using an optional OPC-600/601
panel can be separated from the main body, doubling as a re­mote controller.

SEPARATION CABLE

➀ Detach the front panel as shown at left.
➁ Connect a separation cable to the front panel and to the

main body using the supplied screws as illustrated below.

, the front

11

➂ Reattach the remote controller to the main body.
➃ To remove the microphone, push the release button as

above.

■ Optional MB-58 installation

Bracket

When using self­tapping screws.

Mounting
base

Mounting
bolt

MB-58 IC-2710H remote controller

MB-58

MB-65

Adjust the viewing
angle for maximum
visibility of the
function display.

INSTALLATION

2

The optional MB-58
able for separate installation.

REMOTE CONTROLLER BRACKET

➀ Drill 2 or 4 holes where the bracket or mounting base is to

be installed, respectively.

• Approx. 4 mm (1⁄8 in) when using nuts; approx. 1–2 mm (1⁄16 in)
when using self-tapping screws.

➁ Insert the supplied screws, bolts and washers through the

mounting base and tighten.

➂ Adjust the angle for the clearest view of the function dis-

play and tighten 2 screws when the mounting base is used.

is avail-

➃ Attach the supplied Velcro pads (large) to the remote con-

troller and bracket.

➄ Attach the supplied Velcro pad (small) or rubber pad to the

bracket as shown below; then attach the remote controller.

D When using the MB-65

12

2

INSTALLATION

■ Battery connection ■ DC power supply connection

13

NEVER connect the transceiver directly to a 24 V battery.
DO NOT use the cigarette lighter socket for power con-

nections.
Attach a rubber grommet when passing the DC power
cable through a metal plate to prevent short circuits.

• CONNECTING TO A DC POWER SOURCE

See p. 77 for fuse replacement.

Grommet

red⊕

−

black

Fuses
20 A

−

black

red

⊕

12 V

Supplied
DC power cable

Use a 13.8 V DC power supply with more than 12 A capabil­ity. An optional IC-PS30

DC POWER SUPPLY

is available for

using the transceiver with a DC power supply in your home.

Make sure the ground terminal of the DC power supply is
grounded.

• CONNECTING TO A DC POWER SUPPLY

See p.77 for fuse replacement.

DC power
supply 13.8 V

to an
AC
outlet

−

black
red⊕

−

⊕

Fuses
20 A

■ Antenna installation

30 mm

10 mm (soft solder)

10 mm

1–2 mm

solder solder

Soft
solder

Coupling ring

• PL-259 CONNECTOR

➀

➂

➃

➁

Slide the coupling ring
down. Strip the cable
jacket and soft solder.

Slide the connector
body on and solder it.

Screw the coupling
ring onto the connec­tor body.

Strip the cable as
shown at right. Soft
solder the center con­ductor.

(10 mm ≈

3

⁄8 in)

INSTALLATION

2

D Antenna location

To obtain maximum performance from the transceiver, select
a high-quality antenna and mount it in a good location. A non­radial antenna should be used when using a magnetic mount.

Roof-mount antenna
(Drill a hole or use a magnetic mount.)

Gutter-mount antenna

D Antenna splitter

You can use a dual band antenna because a duplexer is in­stalled in the transceiver. However, an external duplexer must
be connected when using a separate antenna for each band.

Trunk-mount
antenna

D Antenna connector

The antenna uses a PL-259 connector.

14

3

Push [POWER] for 1 sec.

BAND

Indicates memory modeVFO mode is selected

VFO

SETTING A FREQUENCY

■ Preparation

D Turning power ON

Push [POWER] for 1 sec. to turn power ON.

D Main band

The IC-2710H can receive 144 MHz and 430(440) MHz band
signals simultaneously. Function access or frequency
changes affect the main band only. In addition, signals can
be transmitted on the main band only. Set the desired band
as the main band.

Push the desired band’s tuning dial to select the main band.

•“Q” indicates the main band.

Push [BAND] to toggle the main band selection
between the 144 and 430(440) MHz bands.

D VFO and memory modes

The transeiver has 2 normal operating modes: VFO mode
and memory mode. You can select VFO mode or memory
mode independently on each band.

Push the desired band’s [V/MHz] to select VFO mode when
the transceiver is not in VFO mode.

• If VFO mode is already selected, the digits below 100 kHz disap­pear. In this case, push [V/MHz] again (or push twice depending on
version).

Push [VFO] to select VFO mode.

• The microphone controls the main band only (or using
sub band access; p. 22). Push [BAND] to toggle the
main band, then push [VFO], if necessary.

15

■ Lock functions

2 “L”s appear while the frequency lock function
is in use.

16 KEY LOCK

#

LOCK

SETTING A FREQUENCY

3

To prevent accidental frequency changes and unnecessary
function access, use the lock function. The transceiver has 2
different lock functions.

D Frequency lock

This function locks the tuning dials and switches electronically
and can be used together with the microphone lock function.

Push and hold [
nel readout to activate the function.

• To cancel the function, push and hold [

• [PTT], [BAND], [MONI], [MUTE], [VOL] and [SQL] can be used while

the frequency lock function is in use. Also, DTMF tones or DTMF
memory contents can be transmitted from the microphone.

(SET)L] until “L” appears in the memory chan-

(SET)L] until “L” disappears.

Push and hold [(VFO)LOCK] for 1 sec. to toggle
the function ON and OFF.

D Microphone keypad lock

This function locks the microphone keypad.

Push [FUNC] then [
the microphone keypad lock function ON and
OFF.

• [PTT] and the 7 keys on the upper half of the mi­crophone can be used.

• All switches on the transceiver can be used.

• The keypad lock function is released when the

power is turned OFF then ON again.

A16 KEYLOCK] to toggle

16

3

The display shows that the 1 MHz tuning step is
selected for the VHF band.

YZ

59

SETTING A FREQUENCY

■ Using a tuning dial

➀ Rotate the desired band’s tuning dial to set the frequency.

• If VFO mode is not selected, push the same band’s [V/MHz] to
select VFO mode.

• Frequency changes according to the selected tuning steps.
(p. 18)

➁ For the 1 MHz frequency setting, rotate the same band’s

tuning dial after pushing [V/MHz].

• Pushing [V/MHz] for 1 sec. starts a scan function. If this happens,
push [V/MHz] again to stop the scan.

D 10 MHz steps

Some versions have 10 MHz tuning steps. For these versions
the [V/MHz] switch selects 10 MHz, 1 MHz then kHz steps in
sequence.

■ Using [Y]/[Z] switches

Push [Y] or [Z] to set the main band’s frequency.

• If VFO mode is not selected, push [VFO] to select it.

• Frequency changes according to the selected tuning

steps. (p. 18)

• Pushing [Y] or [Z] for more than 0.5 sec. activates a
scan. If this happens, push [Y] or [Z] again to stop it.

NOTE: 1 MHz steps cannot be used via the [Y]/[Z]
switches

17

SETTING A FREQUENCY

25 kHz tuning step15 kHz tuning step

SET

B

3

■ Tuning step selection

Tuning steps are the minimum frequency change increments
when you rotate the tuning dial or push the [Y] or [Z]
switches on the microphone. The following tuning steps are
available:

• 5 kHz • 10 kHz • 12.5 kHz • 15 kHz

• 20 kHz • 25 kHz • 30 kHz • 50 kHz

NOTE: For convenience, select a tuning step that
matches the frequency intervals of repeaters in your area.

USING

➀ Push the desired band’s tuning dial.
➁ Push the selected band’s [V/MHz] to select VFO mode if

another mode has been selected.

➂ Push the selected band’s [

until “tS” appears as shown below.

• Pushing [(SQL)MONI] reverses the order of selection.

• Cancel the DTMF memory or optional pager/code squelch in ad-

vance. (pgs. 49, 59, 62)

(VOL)SET] one or more times

➃ Rotate the selected band’s tuning dial to select the tuning

step.

➄ Push the selected band’s tuning dial to exit set mode.

SET MODE

Ä Push [BAND] to set the main band, if neces-

sary.

Å Push [VFO] to select VFO mode.
Ç Push [FSET] one or more times until “tS” ap-

pears as shown previously.

• Push [ENT] to reverse the order of selection.

• Cancel the DTMF memory or optional pager/code

squelch in advance. (pgs. 49, 59, 62)

É Push [Y] or [Z] to select the tuning step.
Ñ Push [CLR] to exit set mode.

18

3

ENT

C

SETTING A FREQUENCY

■ Using the keypad

The frequency can be directly set via numeral
keys on the microphone.

É Push 5 keys to input a frequency.

• When a digit is mistakenly input, push [ENT] to clear the input,
then input from the 1st digit.

• Pushing [CLR] clears input digits and retrieves the frequency.

Ñ Push [Y] or [Z] to make adjustments below the 10 kHz

Ä Push [BAND] to set the main band, if necessary.

digit, if desired.

Å Push [VFO] to select VFO mode.
Ç Push [ENT] to activate the keypad for digit input.

[EXAMPLE]: Setting the frequency to 145.360 MHz.

BAND

then

VFO

ENT

C

MONI4HIGH

1

[EXAMPLE]: Setting the frequency to 446.325 MHz. (When the 25 kHz tuning step is selected in UHF.)

PRIO

BAND

then

VFO

ENT

C

HIGH4HIGH

4

LOW

3

6

PRIO

MID

3

5

0

VOL

LOW

6

19

BASIC OPERATION

BUSY

159

When receiving a signal on VHF.

BAND

VOL

VOL

Appears while setting volume Appears while setting squelch

BUSY

1 1

4

■ Receiving

The IC-2710H can receive 144 MHz and 430(440) MHz band
signals simultaneously.

➀ Push [POWER] for 1 sec. to turn power ON.
➁ Set the audio levels.

➥ Push [
➥ Rotate the [VOL] control to adjust the audio output level.
➥ Push [

➂ Set the squelch levels.

➥ Rotate [SQL] fully counterclockwise in advance.
➥ Rotate [SQL] clockwise until the noise just disappears.
➥ When interference is received, rotate [SQL] clockwise

➃ Set the operating frequency. (pgs. 15–19)
➄ When receiving a signal on the set frequency, squelch

opens and the transceiver emits audio.

•“BUSY” appears and the S/RF indicator shows the relative signal
strength on the received band.

(SQL)MONI] to open the squelch.

(SQL)MONI] again to close the squelch.

again for attenuator operation.

The volume and squelch levels can be adjusted via the mi­crophone. However, levels return to the front panel setting
when power is turned OFF or a front panel control is adjusted.

Ä Push [POWER] on the transceiver for 1 sec. to

turn power ON.

Å Set the audio levels.

➥ Select the desired band.
➥ Push [➀MONI], then push [BZVOL] or

[IYVOL] to adjust the audio level.

➥ Push [➀MONI] again to close the squelch.

Ç Set the squelch level using [AZSQL] or

[HYSQL], if desired.

É Set the operating frequency. (pgs. 15–19)

✔ CONVENIENT
RF attenuator: The transceiver has an RF attenuator related

to the [SQL] setting. The attenuator is automatically activated
when [SQL] is rotated further than the 12 o’clock position.
Approx. 10 dB attenuation is obtained at full rotation.

20

4

159

Appears when AM
mode is selected.

MONI

➀

MUTE

H

BASIC OPERATION

21

■ Monitor function

This function is used to listen to weak signals without disturb­ing the squelch setting or to open the desired band’s squelch
manually even when the optional mute functions such as tone
squelch, pager functions, etc., are in use.

Push the desired band’s [MONI] to open the desired band’s
squelch.

• Push [MONI] again to cancel the function.

• While duplex is ON for repeater operation, the transmitting fre-

quency can be monitored with [MONI].

Ä Push [BAND] to change bands, if necessary.
Å Push [➀MONI] to open the main band’s

squelch.

• Push [➀MONI] again to cancel the function.

■ Audio mute function

This function mutes both band’s audio signals
without disturbing the volume settings.

Ä Push [FUNC] then [HMUTE] to mute both band’s audio signals.

•“MUTE” appears for both bands.

Å Push [ECLR] (or any other key) to cancel the function.

•“MUTE” disappears.

■ Avionics band receive

AM mode can be selected over the range of 118.000 to

135.995 MHz for reception of avionics-related broadcasts.

➥ Push and hold [

modes.

• Mode selection cannot be performed via the microphone.

NOTE: The avionics band can be selected in the left band
only, even when the para watch fuinction is in use.

✔ CONVENIENT

The tuning steps for the avionics band are available sepa­rately from those for other ranges.

(SQL)MONI] to toggle between AM and FM

(U.S.A. version only)

BASIC OPERATION

“^” appears

BAND

4

■ Sub band access

This function allows you to change sub band settings such as
duplex settings, especially useful from the microphone, during
transmission standby on the main band.

It’s easy to access the sub band and return to the main band
with the band switch.

➀ Push and hold the sub band’s tuning dial until “^” ap-

pears as shown below.

• If the [PTT] is pushed at this time, transmit is on the main band.

• If the main band’s tuning dial is mistakenly pushed and held, the

para-watch function is activated. In this case, push the main
band’s tuning dial for 1 sec. and repeat ➀ again. (p. 24)

➁ Activate functions such as duplex setting, subaudible

tones, etc.

➂ To exit sub band access, push the main band’s tuning dial.

• To switch from the sub band to the main band, push the sub
band’s tuning dial.

• Pushing and holding the sub band’s tuning dial until “^” dis-

appears also exits sub band access.

The sub band access function is also available from the mi­crophone and is useful for setting the sub band’s frequency,
etc. during transmission standby on the main band.

Ä Push and hold [(BAND)SUB].

•“^” appears.

• If the [PTT] is pushed at this time, transmit is on the

main band.

Å Set the sub band’s operating frequency or acti-

vate functions.

Ç To exit sub band access, push and hold

[

•“^” disappears.

• To switch from the sub band to the main band (for

SUB] again.

(BAND)

transmitting), push [(BAND)

SUB] (momentarily).

22