TM 32-6625-022-24&P
f. Set SWEEP RATE control to VAR position.
g. Rotate SWEEP RATE ADJUST control approxi-
to 1200 MHz, and SWEEP WIDTH control to NARROW
mately 3/4 CW.
position with SWEEP WIDTH ADJUST control CCW.
trace extends to the extreme right vertical graticule line.
monitor RF power level at front panel RF OUT connector.
It should be approximately 6 mW.
trace extends to the extreme left vertical graticule line.
d. Rotate RF OUTPUT control CW.
j. Alternately adjust R108 and R116 so that oscillo-
e. Adjust R410 (LEVEL MAX) to obtain a 6 mW power
level as indicated by RF POWER METER.
scope trace extends from the extreme left to the extreme
right vertical graticule lines.
f. Adjust RF OUTPUT control to obtain a 5 mW power
k. Set SWEEP RATE control to LINE position.
level as indicated by RF POWER METER.
g. Adjust R562 (METER CAL) to obtain 0.5 Vrms as
l. Alternately adjust R122 (LINE TRIG AMPL) for
trace width and R106 (LINE DC LEVEL) for trace posi-
indicated by front panel RF OUTPUT meter.
h. Using a coaxial cable, jumper front panel RF OUT
tion so that oscilloscope trace extends from the extreme
left to the extreme right vertical graticule line.
connector to RF DETECTOR IN connector.
m. With SWEEP RATE control set to MAN position,
i. Using coaxial cables, connect oscilloscope to sweep
note the extreme positions of oscilloscope beam as SWEEP
generator as shown in figure 4-13.
j. Adjust oscilloscope controls to obtain a display as
RATE ADJUST control is rotated from CCW to CW.
n. Set SWEEP RATE control to VAR position and
shown in figure 4-14.
then to LINE position. The oscilloscope trace extremes
k. Set RF ATTENUATOR to the 10 dB position; note
obtained from each of these positions shall be identical
output level of oscilloscope display.
to the trace extremes for the MAN position.
l. Set RF ATTENUATOR to the 0 dB position.
m. Rotate RF OUTPUT control CCW.
4-17 RF OUTPUT METER - LEVELER CIRCUIT.
n. Adjust R411 (LEVEL MIN) so that output level
a. Set front panel controls to positions described in
of oscilloscope display is identical with output level noted
in step k (10 dB down).
