Icom IC-T7H User Manual

INSTRUCTION MANUAL

This device complies with Part 15 of the FCC rules. Operation is sub­ject to the following two conditions: (1) This device may not cause
harmful interference, and (2) this device must accept any interference
received, including interference that may cause undesired oper ation.

DUAL BAND FM TRANSCEIVER

iT7H

RW ARNING! NEVER hold the transceiver so that the

antenna is very close to, or touching exposed par ts of the
body, especially the face or eyes, while transmitting. The
transceiver will perform best if the microphone is 5 to 10 cm
(2 to 4 in) away from the lips and the transceiver is vertical.

RWARNING! NEVER operate the transceiver with a

headset or other audio accessories at high volume levels.
Hearing experts advise against continuous high volume op­eration. If you experience a ringing in your ears, reduce the
volume level or discontinue use.

NEVER connect the transceiver to an AC outlet or to a

power source of more than 16 V DC. Such a connection will
damage the transceiver.

NEVER

connect the transceiver to a pow er source that is DC
fused at more than 5 A. Accidental reverse connection will be
protected by this fuse, higher fuse values will not give any pro­tection against such accidents and the transceiver will be ruined.

NEVER attempt to charge alkaline or dry cell batteries. Be-

ware that external DC power connections will charge batteries
inside the battery case. This will damage not only the battery
case but also the transceiver.

i

IMPORTANT

READ ALL INSTRUCTIONS carefully and completely before
using the transceiver.

SA VE THIS INSTRUCTION MANUAL—This instruction man­ual contains important operating instructions for the IC-T7H.

EXPLICIT DEFINITIONS

The explicit definitions below apply to this instruction manual.

CAUTIONS

WORD DEFINITION

RWARNING

Personal injury, fire hazard or electric shock
may occur.

CAUTION

Equipment damage may occur.

NOTE

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

The IC-T7H complies with essential requirements of the
89/336/EEC directive for Electromagnetic Compatibility.
This compliance is based on conformity with the ETSI
specification ETS300 684 (EMC product standard for
Commercially Available Amateur Radio Equipment).

ii

UNPACKING

Accessories included with the transceiver: Qty.

➀ Antenna ............................................................................1

➁ Handstrap.........................................................................1

➂ Battery pack (BP-173/BP-180) or battery case (BP-170)

attached to the transceiver................................................1

➃ Belt clip.............................................................................1

➄ Wall charger*....................................................................1

*Not supplied with battery case versions.

Antenna for U.S.A. version differs from that shown above.

DO NOT push the PTT when not actually desiring to trans-

mit.

DO NOT operate the transceiver near unshielded electrical

blasting caps or in an explosive atmosphere.

AVOID using or placing the tr ansceiver in direct sunlight or

in areas with temperatures below –10°C (+14°F) or above
+60°C (+140°F).

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

The use of non-Icom battery packs/chargers may impair
transceiver performance and invalidate the warranty.

Even when the transceiver power is OFF, a slight current still
flows in the circuits. Remove the battery pack or case from
the transceiver when not using it for a long time. Otherwise,
the battery pack or installed dry cell batteries will become ex­hausted.

For U.S.A. only

CAUTION:Changes or modifications to this device, not ex-

pressly approved by Icom Inc., could void your authority to
operate this device under FCC regulations.

➀

➁

➂

➃

➄

TABLE OF CONTENTS

iii

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

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

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

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

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

1 PANEL DESCRIPTION ............................................ 1 – 5

■ Switches, controls, keys and connectors ................... 1

■ Function display ......................................................... 5

2 BATTERY PACKS AND ACCESSORIES ................6–9

■ Battery pack charging ................................................ 6

■ Charging precautions ................................................. 6

■ About the battery pack ............................................... 6

■ Charging connections ................................................ 7

■ Battery case ............................................................... 8

■ Accessory attachment ................................................9

3 BASIC OPERATION ............................................ 10 – 14

■ Power ON ................................................................. 10

■ Setting a frequency .................................................. 10

■ Setting tuning steps .................................................. 11

■ Selecting a memory channel ....................................12

■ Lock function ............................................................ 12

■ Receive and transmit ................................................ 12

■ Repeater operation .................................................. 13

4 ADVANCED FUNCTIONS ................................... 15 – 22

■ Memory/call channels .............................................. 15

■ DTMF memory operation ......................................... 17

■ Scan operation ......................................................... 18

■ Subaudible tone operation ....................................... 21

5 OTHER FUNCTIONS ........................................... 23 – 26

■ Initial set mode ......................................................... 23

■ Channel indication mode .......................................... 26

■ CPU resetting ...........................................................26

6 TROUBLESHOOTING ................................................ 27

7 OPTIONS ..................................................................... 28

8 SPECIFICATIONS ....................................................... 29

9 MODE ARRANGEMENT .....................................30–31

PANEL DESCRIPTION

1

1

1[PTT]

@[BAND]
A[H/L]

B[TONE]

I

J

[DC13.5V]

6[VOL]

9[POWER]

7[RX/TX]

2[LOCK]

8[MONI]

4[SP/MIC]

3

5[DIAL]

C

D

E
F

G

H

K

CLR MHz

SKIP

MW

VFO

MR

CALL

S.MW

A

B

C

D

DTMF•M

.

T SCAN

POWER

SCAN

DUP

SET

B

A

N

D

T

O

N

E

H

L

LOCK

MONI

■ Switches, controls, ke ys and connectors

1

PANEL DESCRIPTION

2

➏ VOLUME CONTROL [VOL]

Rotate [VOL] clockwise to increase volume and counter­clockwise to decrease volume.

➐ RX/TX INDICATOR [RX/TX] (p. 12)

Lights green while receiving a signal or when the squelch is
open; lights red while transmitting.

➑ MONITOR SWITCH [MONI] (p. 12)

➥ Push and hold this switch to force the squelch

open; release to close it again.

➥ Push twice to keep the squelch open; push again

to close it.

➥ While pushing this switch, rotate [DIAL] to set the

squelch level.

➥ While pushing [PTT], push this switch to transmit

a DTMF memory.

➒ POWER SWITCH [POWER]

Push for 1 sec. to toggle power ON and OFF.

• Battery voltage appears for 1 sec. after power ON.

➓ BAND SWITCH [BAND/SCAN]

➥ Push to toggle between VHF and UHF operation

except in memory mode (p. 10).

➥ Push and hold to indicate the selected scan

range (or band) and to start scanning (p. 18).

• While scanning, each push of this switch changes the
selected scan range.

SCAN

BAND

POWER

MONI

➊ PTT SWITCH [PTT] (p. 12)

Push and hold to transmit; release to receive.

➋ LOCK SWITCH [LOCK]

Slide up to turn the lock function ON.

• [PTT], [VOL], [H/L], [MONI] and [POWER] function even
when the lock function is activated.

➌ ANTENNA CONNECTOR (p. 9)

Connects the supplied antenna.

➍ EXTERNAL SPEAKER AND MICROPHONE JACKS

[SP/MIC]

Connect an optional speaker-microphone or headset, if de­sired. The internal microphone and speaker will not func­tion when either is connected. (See p. 28 for options.)

D External connection

➎ TUNING DIAL [DIAL]

Rotate [DIAL] to set an operating frequency, select a mem­ory channel, select set mode contents, change scan direc­tion, etc.

This connec­tion does not
apply when a
condensor mi­crophone is
connected.

Remote Audio out

(8 Ω)

[SP]

MIC

3.5 V
PTT

[MIC]

Audio input

PTT

33 kΩ

(2 kΩ)

1

PANEL DESCRIPTION

3

!1 OUTPUT POWER SWITCH [H/L(SET)]

➥ Push to toggle between low and high output

power (p. 12).

•“LOW” appears when low output power is selected.

➥ Push and hold to enter set mode.

!2 TONE SWITCH [TONE(DUP)]

➥ Push this switch to activate the following func-

tions in order (pgs. 21, 22).

• Subaudible tone encoder—“T” appears.

• Pocket beep—“T SQLS” appears.

• Tone squelch—

“T SQL” appears.

• No tone operation—no indicator appears.

➥ Push this switch for 1 sec. to select semi-duplex

or simplex operation (p. 13).

•“–DUP” appears during minus duplex operation,
“DUP” appears during plus duplex operation and no

indicator appears during simplex operation.

➥ For the European version only, while pushing

[PTT], push this switch to transmit a 1750 Hz
tone burst signal (p. 13).

!3 VFO/CLEAR KEY [VFO(CLR MHz);;]

➥ Clears some functions, such as digit input before

entry, scan, etc.

➥ Push this key to select VFO mode (p. 10).
➥ Push and hold for 1 sec., then rotate [DIAL] to

change the MHz digit (p. 11).

➥ While pushing [PTT], this key sends a DTMF “A.”

CLR MHz

VFO

A

DUP

T

O

N

E

SET

H

L

!4 MEMORY MODE KEY [MR(SKIP)<<]

➥ Push this key to select memory mode (p. 12).

•“XX” appears while in memory mode.

➥ While in memory mode, push this key for 1 sec.

to toggle the selected memory channel between
a skip and a non-skip channel (p. 20).

•“SKIP” appears when the channel is set as a skip
channel.

➥ While pushing [PTT], this key sends a DTMF “B.”

!5 CALL MODE KEY [CALL==]

➥ Push this key to select the call channel (p. 15).

•“C” appears while the call channel is selected.

➥ While pushing [PTT], this key sends a DTMF “C.”

!6 SELECT MEMORY WRITE KEY [S.MW(MW)>>]

(pgs. 15, 16)

➥ Push this key to enter memory select mode.

•“X” flashes and the [DIAL] can be used for channel
selection (for memory writing or clearing).

➥ Push and hold for 1 sec. to write the set contents

into the selected memory channel (or VFO, call
channel).

➥ Push then push and hold this key while in mem-

ory select mode to erase the contents of the se­lected memory channel.

➥ While pushing [PTT], this key sends a DTMF “D. ”

MW

S.MW

D

CALL

C

SKIP

MR

B

1

PANEL DESCRIPTION

4

!7 TONE SCAN KEY [TSCAN?]

➥ Push this key for 1 sec. to start and stop tone de-

code scan (p. 13).

• When a subaudible tone is detected, the tone fre­quency is displayed and overwrites the prepro­grammed:

➠ tone squelch frequency when the tone squelch is

in use;

➠ tone encoder (repeater tone) frequency when the

tone squelch is not in use.

➥ While pushing [PTT], this key sends a DTMF “#.”

!8 DTMF KEY [• (DTMF M@)]

➥ Enters a decimal for MHz unit during frequency

input (p. 10).

➥ Push and hold for 1 sec. to enter DTMF memory

mode for programming or recall (p. 17).

• To program use [(H/L)SET].

• To transmit use [MONI] while transmitting.

➥ While pushing [PTT], this key sends a DTMF “M.”

!9 DIGIT KEYS

➥ Input the specified digit during frequency input, memory

channel selection, etc.

➥ Transmit the DTMF code of the specified digit while

pushing [PTT].

DTMF• M

.

T SCAN

@0 EXTERNAL DC POWER JACK [DC13.5V]

Allows operation with a 4.5 to 16 V DC power source using
the optional cables, CP-12L or OPC-254L.

CAUTION: Operation with an external DC power

source simultaneously charges batteries inside the bat­tery case or the battery pack. When using dry cell bat­teries this may cause battery leakage and damage the
transceiver; when using a Ni-Cd battery pack this may
cause battery overcharging and shorten the life of the
battery pack.

@1 BATTERY PACK RELEASE (p. 8)

Push to open the latch for battery pack removal.

5

1

PANEL DESCRIPTION

➎ MEMORY CHANNEL INDICATOR (p. 12)

Indicates the selected memory channel and other items
such as the call channel, key lock indicator, etc.

➏ S/RF INDICATORS (p. 12)

Show the relative signal strength while receiving.
and the output power selection while transmitting.

➐ LOW POWER INDICATOR (p. 12)

Appears when low output power is selected.

➑ ALPHANUMERIC READOUTS

Show the selected frequency, set mode contents, etc.

D

LOW

UP T SQL SKIP

➊➋ ➌

➍

➎

➏

➐

➑

■ Function display

➊ DUPLEX INDICATORS (p. 13)

Appear during semi-duplex operation.

•“– DUP” appears for minus duplex; “DUP” only appears for plus
duplex.

➋ TONE INDICATORS (p. 21)

“T” appears when the subaudible tone encoder is in use,
“T SQLS” appears during pocket beep operation and
“TSQL” appears when the tone squelch function is acti-

vated.

➌ SKIP INDICATOR (p. 20)

Appears when a selected memory channel is set as a skip
channel.

➍ MEMORY MODE INDICATOR (p. 15)

Appears while in memory mode.

6

BATTERY PACKS AND ACCESSORIES

2

■ Battery pack charging

The supplied* BP-180

BATTERY PACK

includes rechargeable
Ni-Cd batteries and can be charged approx. 300 times.
Charge the battery pack before first operating the transceiver
or when the battery pack becomes exhausted.

*Optional for versions which come with the BP-170

BATTERY CASE

.

If you want to be able to charge the battery pack more than
300 times, the following points should be observed:

1. Avoid overcharging. The charging period should be less

than 48 hours.

2.Use the battery until it becomes almost completely ex-

hausted under normal conditions. We recommend battery
charging just after transmitting becomes impossible.

■ Charging precautions

NEVER attempt to charge dr y cell batteries. This will cause

internal liquid leakage and damage the battery case and
transceiver.

NEVER connect two or more chargers at the same time.
Charging may not occur under temperatures of 10°C (50°F)

or over temperatures of 40°C (104°F).

■ About the battery pack

D Operating period

Depending on the attached battery pack, the operating period
of the transceiver varies. Ref er to p. 28 for battery pack spec­ifications.

D Battery pack life

If your battery pack seems to have no capacity even after
being fully charged, completely discharge it by leaving the
power ON overnight. Then, fully charge the battery pack
again.

If the battery pack still does not retain a charge (or very little),
a new battery pack must be purchased.

Recycling information (U.S.A. only)

The product that you purchased contains a
rechargeable battery. The battery is recyclable. At

the end of its useful life, under various state and
local laws, it may be illegal to dispose of this battery into the
municipal waste stream. Call 1-800-8-BATTERY for battery
recycling options in your area or contact your dealer.

R

B

R

C

R

B

R

C

Ni-

Cd

7

2

BATTERY PACKS AND ACCESSORIES

■ Charging connections

D Regular charging

Attach the supplied* or optional battery pack; then, connect
the supplied* wall charger via an AC outlet as shown below.

*Optional for versions which include a battery case.

D Rapid charging with the BC-119

➀ Insert the AD-56A into the charging slot of the BC-119.
➁ Insert the AD-56B into the groove in the AD-56A (front-fac-

ing side of the AD-56A).

➂ Insert the battery pack, either by itself or attached to the

transceiver, into the AD-56B.

To [DC13.5V]

Wall charger

BP-171 or
BP-172
attached to
the transceiver

Check orientation
for correct
charging

BP-171 or
BP-172
WITHOUT

transceiver

BP-173 or
BP-180
WITH
or WITHOUT

transceiver

AD-56
(optional)

BC-119
(optional)

Charging periods:

1 hour (w/BP-171

or BP-180)

1.5 hours (w/BP-172 or BP-173)

Charging periods:

15 hours (w/BP-171, BP-173 or BP-180)
20 hours (w/BP-172)