TB 9-6625-003-35
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.
NOTE
Unless otherwise specified, verify the results of each test and,
whenever the test requirement is not met, take corrective
action before continuing with the calibration. Adjustments
required to calibrate the TI are listed in this procedure.
Additional maintenance information is contained in the
manufacturer's manuals for these TI's.
NOTE
When indications specified in paragraphs 16 through 21 are
not within tolerance, perform the power supply check prior to
making adjustment. After adjustments are made, repeat
if all other parameters are within tolerance.
NOTE
Unless otherwise specified, all controls and control settings
refer to the TI.
15. Equipment Setup
a. Remove protective cover from TI only to make adjustments or to gain access to test
points, and replace immediately upon completion.
d. Energize TI and allow 15 minutes for warm up.
e. Set power switch to off (down) position and wait 30 seconds. If TI meter pointer
does not indicate 1.3 (radial line model 351) on EXPAND SWR scale, turn mechanical zero
adjustment screw clockwise until meter pointer travels to left toward 1.3 or radial line and
stops when meter pointer indicates 1.3 or radial line.
f. Position TI controls as listed in (1) through (5) below:
(1) GAIN control fully clockwise.
(2) RANGE switch to 0 (zero).
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