User’s manual EXPERT 1K-FA
Pag. 14 of 76
4. USE OF THE LINEAR AMPLIFIER
TUNER
ANT 1
ANT 2
ANT 3
ANT 4
INPUT 1
INPUT 2
AMPLIFIER
ALC RS 232CAT RELAY ALCCAT RELAY
IN 1 IN 2
SO2R
The position of the contacts, as shown in the diagram, is the situation of the linear
amplifier in OFF state.
The linear amplifier can be used in the following ways:
1) OFF Only two direct connections are actuated:
between INPUT 1 and ANT 1
between INPUT 2 and SO2R
2) STANDBY All the functions are activated (band change, antenna change, tuner
control) but the transmission is from the transceiver only.
3) OPERATE All the functions are activated and the transmission is using the
linear amplifier.
Note: regulation of the exciter’s power is automatic through the ALC connection. With the
ALC connected, the amplifier input power in OPERATE mode is reduced to the correct
level to drive the amplifier. In standby, the exciter will give the output power as set by
its POWER OUTPUT control. Without the connection, you have to manually regulate
the exciter power to drive the amplifier correctly.
Note: for continuous duty cycle transmissions (RTTY, PSKxx, SSTV, FM, AM etc.) we
recommend switching the power to “HALF“ state.
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