Antenna Current/Tuning Meter - SAC SS-800AVS Manual

3.2.4 Antenna Current/Tuning Meter
The RF signal from the current sample transformer is developed
across R1 and R2, amplified by Q1 and detected by Q2. The detected
signal is calibrated with RI0 and RII and fed to the 1 mA meter.
An RF signal proportional to reflected power is generated by T4 and
C2 in the antenna coupler and fed to Q3 on the Antenna Current/Tuning
Meter PWB for detection. The detected signal is fed through RI2
to the 1 mA metero
SS-800AVS Southern Avionics
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