TB 9-6625-2004-35
(4) Adjust FINE TUNE ADJ R75 (fig. 1) until TI CARRIER SHIFT meter indicates
a positive shift of 250 kHz (R).
(5) Repeat (1) through (4) above until no further adjustment is required.
11. Frequency Deviation
a. Performance Check
(1) Connect equipment as shown in figure 2.
Figure 2. Frequency deviation - equipment setup.
(2) Set DEVIATION RANGE-KC switch to 20 and FREQUENCY RANGE-MC
switch to 20-55.
(3) Set measuring receiver for automatic operation to measure RF frequency.
(4) Set synthesized signal generator frequency to 50 MHz and level to 100 mV,
adjust attenuator as necessary to limit signal to black section of TI limiting meter.
(5) Adjust TI FREQUENCY-MC dial for a 0 indication on CARRIER SHIFT meter.
(6) Set synthesized signal generator FM to INT and MOD FREQ to 1 kHz.
(7) Set measuring receiver to FM modulation.