TB 9-6625-2343-50
R 45 "A" LVL
R 39 SYM M
AM CALIBRATOR
AM
ADJUSTM E N T
A 50
(38) Press TI keys as listed in (a) and (b) below:
(a) DATA 49.5.
(b) DATA SP CL.
(39) TI display should indicate between 1.8 and 2.2.
(40) Press TI keys as listed in (a) through (d) below:
(a) DATA 13.2.
(b) DATA SPCL.
(c) DATA 5.1.
(d) DATA SPCL.
(41) Alternately switch TI DETECTOR between PEAK+ and PEAK-. Note the
indications for each setting.
(42) Adjust A50R39 SYMM (fig. 5) until the indications are the same for both
detectors within 0.015 percent (R).
(43) Press TI keys as listed in (a) and (b) below:
(a) MEASUREMENT FM.
(b) CALIBRATION CALIBRATE.
(44) Allow TI to take at least two readings, then adjust A2R6 AM SENS (fig. 2) for a
displayed indication of 99.95 percent to 100.05 percent (R).
(45) Press TI CALIBRATION CALIBRATE key.
(46) Reduce all outputs to minimum and disconnect equipment setup.
9. Frequency Modulation
a. Performance Check
NOTE
In the following procedure, any source can be connected either
to a sensor module (as written) or directly to the TI INPUT 50 Ω.
(1) Connect AM/FM test source LOW RESIDUAL OUTPUT to TI sensor module.
(2) Set AM/FM test source TEST MODE switch to RESIDUAL FM.
(3) Press TI keys as listed in (a) through (f) below:
(a) BLUE.
