HP 4935A Operating And Service Manual page 85

DET) until the display flickers
LEVEL FREQLIENCY
FILTER - change to I Sl\lHz
still rc~~cls X I6mV +O.SmV at A3TP25.
that the instrument
Attach ;I scope prohc to A3TP23(full
D I S P L A Y - T R M T
M E A S U R E M E N T - L E V E L F R E Q
Vary the OLlTPlJT LEVEL from 0 JBm to +I 2.0 dBm, starting at 0 and finishing at +I 2.9. T h e
at A 3 T P 2 3
On the 4035A LEVEL FREQUENCY to NOISE.
filter and verify
distortion.
the notch filter capacitors (A3CO2.
pick up noise when
ADJUSTMENTS
and acl,iust
using onI\, ;I Voltmctcr. T h e following test is intcndcd
in each that a rcctificd
00. and A3CI
too close). Bcntl the capacitors away
GAIN) [or ;I reading of 8 I6mV
with the peaks \cithin
at A 3 T P 2 3
4 I); they must Ican away
from the switch board ir
as
50 mV of each
should appear.
with no visual
from the