Linear Amplifier Connections - Icom IC-7000 Instruction Manual

2
INSTALLATION AND CONNECTIONS

■ Linear amplifier connections

CONNECTING THE IC-PW1/EURO
To an
antenna ACC-1
ANT
AC outlet
(
Non-European versions : 100–120/200–240 V
European version
CONNECTING A NON-ICOM LINEAR AMPLIFIER
R WARNING!:
Set the transceiver output power and linear
amplifier ALC output level referr ing to the
linear amplifier instruction manual. Be sure the
linear amplifier keying circuit control voltage is
compatible with the IC-7000, before connecting to
the HSEND line (ACC cable).
The ALC input level must be in the range 0 V to
–4 V, and the transceiver does not accept positive
voltage. Non-matched ALC and RF power settings
could cause a fire or damage the linear amplifier.
The IC-7000 SEND line (ACC connector pin 3) is
rate at 16 V/200 mA DC. If this level is exceeded,
a larger external relay must be used.
When the HSEND (or VSEND) terminal controls
the inductive load (such as a relay), a counter-
electromotive force can cause the transceiver's
malfunction or damage. To prevent this, we
recommend adding a switching diode, such as
an "1SS133," on the load side of the circuit to the
counter-electromotive force absorption.
When the diode is added, a switching delay of the
relay may occur. Be sure to check its switching action
before operation.
21
Remote control cable
ACC cable
(supplied with the IC-PW1/EURO)
REMOTE
EXCITER
1 1&2
IC-PW1/EURO
: 230 V
Use the [ANT1] connector when connecting an HF/50
MHz linear amplifier.
(supplied with the IC-PW1/EURO)
OPC-599 conversion cable
INPUT1
Coaxial cable
(supplied with the IC-PW1/EURO)
GND
Ground
)
To an
antenna
RF OUTPUT
50 Ω coaxial cable
Transceiver
[ACC]
ACC cable
7-pin side
ACC REMOTE
ANT1
Transceiver
RF INPUT
ALC
SEND
HSEND
(Orange)
Relay
GND
Switching
diode
13.8V (Gray)
[ANT1]
Ground
ALC (Blue)
GND