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FRONT PANEL CONTROLS
TUNE
The TUNE control is a dual capacitor to provide capacitive adjustment
of the coupling between the transmitter and the impedance established
by the BAND switch and the LOAD control,
The TUNE and LOAD
controls are adjusted for minimum SWR.
BAND switch
The BAND switch selects the inductance required to accomplish
matching on the band in question,
The operator should select the
BAND switch position which best covers the portion of the band
being used,
The DIREGT
position of the BAND switch connects the
transmitter directly to the antenna, bypassing the FC-902 matching
circuitry, but permitting measurement of the SWR on the line at
that point.
SWR SET
This
control is used to calibrate
the SWR
METER:
the SWR
may
be read accurately by adjusting the SWR SET control for full deflection
of the FWD
POWER
meter
with the POWER
& SWR
switch in the
SWR SET position.
LOAD
The LOAD control is connected to a variable capacitor which adjusts
the coupling between the antenna feedline and the impedance presented
by the BAND switch inductor and the TUNE control.
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