TM 11-5820-880-12
The meter is used to indicate forward power, reflected power, and phase error through the band-
pass filter. The meter function switch will determine the function of the meter. When selecting
60W-F on the meter function switch, the rf output of the transceiver passing through the band-
pass filter is displayed up to 60 watts. When selecting 60W-R on the meter function switch,
tuning knobs A, B, and C are used to rf tune the band-pass filter, and the meter will indicate the
proper tune points when the displayed power is minimum. When selecting 60W- on the meter
function switch, tuning knob B is used to rf tune high-level phase error in the band-pass filter,
and the meter will indicate the proper tune point when the displayed power is 0. When selecting
6W-F, 6W-R, or 6W- on the meter function switch, meter indications will be the same as for 60W
positions. Remember that the 6W positions are used for rf fine tuning of the band-pass filter after
60W rf tuning or for rf tuning of the band-pass filter using low-level transceivers with rf power not
exceeding 6 watts.
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