TB 9-4931-488-35
a. Performance Check
(1) Position controls as listed in (a) through (e) below:
(a) FM k/MHz pushbutton pressed.
(b) PEAK DEVIATION switch to 320 kHz.
(c) FM control fully cw.
(d) RANGE MHz switch to 128-64.
(e) FM switch to AC.
(2) Connect equipment as shown in figure 8.
(3) Set measuring receiver to measure FM. Set the high-pass filter to 50 Hz and
low-pass filter to 15 kHz and use peak + detector.
(4) Set audio analyzer for a 1-kHz 1.414-V ac output level.
(5) Adjust FREQUENCY TUNE control for a FREQUENCY MHz display
indication of 64 MHz.
(6) Set PEAK DEVIATION switch to positions listed in table 29. The measuring
receiver will indicate as specified; if not, perform b below.
(7) Repeat (5) and (6) above remaining settings in table 29.
