Manual Icom iF1721 D (page 34 of 36) (English)

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CONNECTION AND MAINTENANCE

■ Antenna

A key element in the performance of any communication sys-

tem is an antenna. Contact your dealer about antennas and

the best places to mount them.

■ Fuse replacement

A 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.

❑ Fuse rating: 20 A

USE the 20 A fuse only.

■ 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 the transceiver sur-

faces.

■ Options

• RMK-2

SEPARATION KIT

OPC-607/OPC-608/OPC-609

SEPARATION CABLE

Allows you to install the transceiver main unit separately

from the front panel for operating convenience.

• SP-5/SP-22

EXTERNAL SPEAKER

Input impedance : 4 Ω

Max. input power : 5 W

SP-5 : Large speaker for good audio quality.

SP-22 : Compact and easy-to-install. The same as supplied

with the transceiver (depending on version.)

• HM-152/HM-152T/HM-148

HAND MICROPHONE

HM-152 : Hand microphone

HM-152T : DTMF microphone

HM-148 : Heavy duty microphone

• SM-25

DESKTOP MICROPHONE

• UT-109 (#02)/UT-110 (#02)

SCRAMBLER UNITS

Non-rolling type (UT-109)/Rolling type (UT-110) voice

scrambler unit provides higher communication security.

• UT-111

LTR TRUNKING BOARD

Provides trunking operation.

• OPC-617

ACC CABLE

Allows you to connect to an external terminal.

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Icom iF1721 D Manual

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