I Linear Amplifier Connections (Not Usable In European Countries); I External Antenna Tuner Connections - Icom IC-7400 Instruction Manual

2
INSTALLATION AND CONNECTIONS
I Linear amplifier connections
CONNECTING THE IC-PW1
To an
antenna ACC(1)
ANT
AC outlet
(Non-European versions: 100—120/220—240 V
European version
Turn OFF the transceiver's antenna tuner while tuning the IC-PW1's tuner.
CONNECTING A NON-ICOM LINEAR AMPLIFIER
To an
antenna
RF OUTPUT RF INPUT
Non-Icom linear amplifier
I External antenna tuner connection
CONNECTING THE AH-4
The AH-4 must be connected to [ANT1].
Transceiver
Control cable
17
Remote control cable
REMOTE
EXCITER
1 1&2
IC-PW1
: 230 V)
50 Ω coaxial cable
Transceiver
ALC
SEND
Coaxial cable (from AH-4)
ANT1
Ground
(not usable in European countries)
Use the [ANT1] connector when connecting a linear amplifier.
(supplied with the IC-PW1)
ACC cable
(supplied with the IC-PW1)
Coaxial cable
INPUT1
(supplied with the IC-PW1)
Be sure to connect the cable
to the 7-pin ACC(2) jack.
GND
GND
Ground
R WARNING:
Set the transceiver output power and linear ampli-
fier ALC output level referring to the linear amplifier
ANT1
instruction manual. Be sure the linear amplifier key-
ing circuit control voltage is compatible with the IC-
746PRO, before connecting to [SEND] jack.
The ALC input level must be in the range 0 V to –4
V, and the transceiver does not accept positive volt-
age. Non-matched ALC and RF power settings
could cause a fire or ruin the linear amplifier.
ALC SEND
The specifications for the SEND relay are 16 V/DC
0.5 A. If this level is exceeded, a large external
relay must be used.
AH-4
ACC(2) ANT1
Transceiver
Long wire or optional AH-2b