TB 9-6625-2343-50
PHASE
PHASE MODULATION
SENSITIVITY
Figure 10. A3 board.
10. Phase Modulation
a. Performance Check
(1) Press TI INSTR PRESET key.
(2)
Set AM/FM test source TEST MODE switch to FM and connect equipment as shown
in figure 11 below.
(3) Set calibrator for a wideband output frequency of 200 Hz at a level of 89.6 mV.
(4) Press TI keys as listed in (a) and (b) below:
(a) MEASUREMENT FREQ.
(b) TRACK MODE.
(5) Adjust AM/FM test source CARRIER FREQUENCY TUNE for a TI indication
of approximately 400 MHz.
