Page. 13 of 87
4. USE OF THE LINEAR AMPLIFIER
Block diagram.
The position of the contacts, as shown in the diagram, is the situation of the linear
amplifier in the OFF state.
The linear amplifier can be used in the following way:
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) and 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 automatically achieved through the ALC link.
With the ALC connected, the amplifier input power in OPERATE mode is automatically
adjusted to the correct driving level for the amplifier. In STANDBY, the exciter will pass
the output power as set by its POWER OUTPUT control.
Without the ALC connection, you have to manually adjust the exciter power to correctly
drive the amplifier in order to avoid damaging the amplifier.
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