TB 9-4931-427-35
7. Equipment Setup
WARNING
HIGH VOLTAGE is used or exposed during the performance of
this calibration.
DEATH ON CONTACT may result if
personnel fail to observe safety precautions.
REDUCE
OUTPUT(S) to minimum after each step within the
performance check where applicable.
DIFFERENCE meter face for a 0 indication.
b. Connect TI to a 115 V ac source.
c. Connect time/frequency workstation 1 MHz output to TI REF (TEST) INPUT.
d. Set TEST/OPERATE switch to TEST.
e. Set POWER ON/OFF switch to ON.
f. If necessary, adjust
ZERO
ADJ
for
a
0
indication
on
FREQUENCY
DIFFERENCE meter.
g. For Tracor Model 527E only, press PHASE meter ZERO pushbutton and if
necessary, adjust mechanical zero adjustment screw on phase meter face for 0 indication.
Press PHASE meter FS pushbutton and if necessary, adjust FS ADJ for full
scale deflection.
h. Set TEST/OPERATE switch to OPERATE. Do not disconnect time/frequency
workstation from TI.
a. Performance Check
(1) Connect time/frequency workstation 10 MHz output to function/arbitrary
generator 10 MHz In (rear panel).
INPUT using a 50 Ω feedthrough termination.
NOTE
Allow settling time. It may be necessary to take an average of
TI indications.
(3) Set TI METER RANGE/DIFF MULT switch to 1010.
(4) Set function/arbitrary generator for a 10.000000009 MHz, 1 V rms output. If
TI does not indicate between +8.5 and +9.5, perform b (1) below.
(5) Repeat technique of (3) and (4) above using TI and function/arbitrary generator
settings listed in table 3. If TI does not indicate within limits specified, perform b (1)
below. Perform b (2) below for TI METER RANGE/DIFF MULT switch 107 settings.
