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INSTALLATION AND CONNECTIONS
2
■ External antenna tuners
GroundGround
Long wire or optional AH-2b
AH-4
ANT1
IC-7000
Coaxial cable
(from the AH-4)
CONNECTING THE AH-4
CONNECTING THE AT-180
•Turn the IC-7000’s power OFF when connecting
the AT-180, otherwise, the CPU may malfunction
and the AT-180 may not function properly.
•The OPC-742 is required when using both the AT-
180 and a 2m/70cm linear amplifier.
•Do not connect [ANT2] to the AT-180. When using
an HF to 2m/70cm dual or wide-band antenna,
use a duplexer between the AT-180 and antenna
since 2 m/70 cm signals do not pass through the
AT-180.
[ANT 1]
Transceiver
Duplexer
HF to 2 m/70 cm
antenna
AT-180
[ANT 2]
IC-7000
Ground
Ground
AT-180
HF
to 6 m
antenna
[TRANSCEIVER]
[ANT][ANT1][ACC] [ACC]
ACC cable supplied with the AT-180
Coaxial cable supplied
with the AT-180
Either of the two
external connectors