TM 11-5820-880-12
CHAPTER 2
OPERATING INSTRUCTIONS
SECTION I
DESCRIPTION AND USE OF OPERATOR'S
CONTROLS, INDICATORS, AND CONNECTORS
60W: The 60 watt section is used for rf tuning of the band-pass filter.
60W-F: The 60 watt-forward position is for high-level forward power through the band-pass filter.
This can be used to display high-level transceiver rf power output on the meter.
60W-R: The 60 watt-reflected position is for high-level reflected power through the band-pass
filter. This position is used for rf tuning of band-pass filter knobs A, B, and C.
60W-: The 60 watt-phase position is for high-level phase error in the band-pass filter. This
position is used during rf tuning of the band-pass filter in order to phase knob B.
6W: The 6 watt section is used for rf fine tuning of the band-pass filter after the 60 watt rf tuning
of the band-pass filter is completed or for rf tuning of the band-pass filter using a low-level
transceiver.
6W-: The 6 watt-phase position is for low-level phase error in the band-pass filter. This position
is used during rf tuning of the band-pass filter in order to phase knob B.
6W-R: The 6 watt-reflected position is for low-level reflected power through the band-pass filter.
This position is used at end of 60 watt tuning procedure of the band-pass filter because it allows
rf fine tuning of knobs A, B, and C while passing high-level reflected power through the band-
pass filter. This position is also used for rf tuning of the band-pass filter when using low-level
transceivers.
6W-F: The 6 watt-forward position is for low-level forward power through the band-pass filter. This
can be used to display low-level transceiver rf power output not exceeding 6 watts.
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