TM 11-6625-820-45
Figure 1-1. Test Set, Radio AN/ARM-92, block diagram.
c. Phase Shifting Circuits. The phase shift-
30-cycle refererence signal obtained from the
radio receiver. Either the OBS resolver or pre-
ing circuits (comprised of precision bearing
transformer T2; Indicator, Course ID-1347/
cision bearing transformer T2 performs the
ARN82, OBS (omni bearing switch) indica-
phase shifting, and BRGOBS switch S2 se-
lects the one to be used. The OBS resolver
t o r ; BEARING switch S3; and BRG-OBS
switch S2) are used to shift the phase of the
shifts the phase of the 30-cycle reference signal
1-2
