TB 9-6625-2330-35
(3) Set measuring receiver to measure PM with a + PEAK detector, 15 kHz low-pass
filter and a 300 Hz high-pass filter.
(4) Using measuring receiver, measure phase modulation. Measuring receiver
phase modulation indication will be within limits specified for first carrier frequency listed
in table 29.
(5) Set TI FUNCTION-CARR FREQ and DATA ENTRY keys to next frequency
listed in table 29.
(6) Measuring receiver phase modulation indication will be within limits specified
in table 30 for carrier frequency setting of TI.
Measuring receiver phase modulation indications
Test instrument
(rad)
Carrier frequency
(MHz)
Min
Max
8
9
11
1050
9
11
.50
9
11
(8) Press TI pushbuttons as listed in (a) through (j) below:
(a)
FUNCTION-CARR FREQ.
(b)
DATA ENTRY- 8 MHz.
(c)
FUNCTION- CARR LEVEL.
(d)
DATA ENTRY- 10 dBm.
(e)
FUNCTION-MOD FREQ.
(f)
DATA ENTRY- 1 kHz.
(g)
FUNCTION-MOD LEVEL.
(h)
DATA ENTRY- 10 RAD.
(i)
MODULATION/AUX-MOD ON ONE (red light lit).
(j)
FUNCTION-RF ON to on (red light lit).
(9) Set measuring receiver to measure 1 kHz audio distortion.
(10) Using measuring receiver, measure audio distortion. Measuring receiver audio
distortion indication will be within limits specified for first carrier frequency listed in
(11) Set TI FUNCTION-CARR FREQ and DATA ENTRY keys to next frequency
listed in table 30.
(12) Measuring receiver audio distortion indication will be within limits specified in
table 31 for carrier frequency setting of TI.
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