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2
INSTALLATION AND CONNECTIONS
■ External antenna tuners and linear amplifier
AH-4
ANT 1
Transceiver
Coaxial cable
(from the AH-4)
To the AH-2b or
an antenna element
CONNECTING THE AH-4
The AH-4 can be used for the HF bands and 50
MHz band only.
CONNECTING THE AT-180
Ground
HF
to 6 m
antenna
[TRANSCEIVER]
[ANT 1] [ACC] [ACC]AT-180
ACC cable supplied with the AT-180
Coaxial cable supplied
with the AT-180
IC-706
one of two
connectors
ACC-1 REMOTE
INPUT-1 ANT1
ANT
Mini-plug cable
ACC cable
7-pin side
AC outlet (220–240 V)
IC-PW1
GND
GND
ACC REMOTE
Transceiver
Coaxial cable
To an
antenna
OPC-599 conversion cable
CONNECTING THE IC-PW1
Note:
•Turn the IC-706MKIIG’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 2
m linear amplifier.
Do not connect [ANT 2] to the
AT-180. When using an HF to 2 m
wide antenna, use a duplexer
between the AT-180 and antenna
since 2 m signals do not pass
through the AT-180.
[ANT 1]
Transceiver
Duplexer
HF to 2 m
antenna
AT-180
[ANT 2]