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3
CONNECTION AND MAINTENANCE
■ Antenna
A key element in the performance of any communication sys-
tems is the antenna. Contact your dealer for more information
regarding antennas and how to install them.
■ Fuse replacement
A fuse is installed in each fuse holder of the supplied DC
power cable*. If a fuse blows or the transceiver stops func-
tioning, track down the source of the problem if possible, re-
paire it and then replace the damaged fuse with a new rated
one.
*Depending on the version, only 1 fuse holder may be attached.
❑ Fuse rating: 10 A (for 1 fuse holder)/20 A (for 2 fuse holders)
USE the applicable fuse only.
■ Cleaning
If the transceiver becomes dusty or dirty, wipe it clean with a
soft, dry cloth.
DO NOT use harsh solvents such as benzine or
alcohol, as they will damage the transceiver sur-
faces.
16
■ Options
• OPC-1132A/OPC-347
dc power cable
2 fuse holders are attached. USE only a 20 A fuse.
OPC-1132A : 3 m (9.8 ft)
OPC-347
: 7 m (23 ft)
• OPC-1939/OPC-2078
acc cable
Allows you to connect to an external terminal.
OPC-1939: D-sub 15-pin, OPC-2078: D-sub 25-pin
• HM-152/HM-152T/HM-148G/HM-148T
HM-152 : Hand microphone
HM-152T : DTMF microphone
HM-148G: Self grounding heavy duty microphone
HM-148T : Self grounding heavy duty DTMF microphone
• SM-26
desktop microphone
• SP-22/SP-30/SP-35
external speakers
Input impedance : 4 ø
Max. input power: 7 W (SP-22/SP-35)/30W (SP-30)
SP-22/SP-35 : Compact and easy-to-install.
SP-30
: High input power level.
• UT-108R
dtmf decoder unit
provides pager and code squelch capabilities.
• UT-109R/UT-110R
voice scrambler unit
Non-rolling type (UT-109R) and Rolling type (UT-110R)
voice scrambler units provides higher communication secu-
rity.
hand microphone
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