TB 9-6625-152-24
(c) Press Rx TEST, [Mod Gen], [Gen1/Gen2] until MOD2 FREQ is
highlighted, FREQ, and set to 100 Hz.
(d) Press Rx TEST, [Mod Gen], [Gen1/Gen2] until MOD2 FREQ is
highlighted, LEVEL and set to 10 kHz.
(5) Configure measuring receiver for FM deviation measurement with Peak+
detector, high pass filter to none and 3 kHz low pass filter. If measuring receiver indication
is not within limits specified in first row of table 11, perform b below.
(6) Repeat technique of (4) (a), (b), (d) and (5) above for remaining TI frequencies
and modulation levels in table 11. If measuring receiver indications are not within limits
specified in table 11, perform b below.
Table 11. Frequency Modulation @ 100 Hz.
Test instrument
Measuring receiver
Modulation level
Indication limit (kHz)
(MHz)
(kHz)
Min
Max
0.5
10
9.000
11.000
10
10
9.000
11.000
10
20
18.000
22.000
10
50
45.000
55.000
10
70
63.000
77.000
100
10
9.000
11.000
500
10
9.000
11.000
750
10
9.000
11.000
1000
10
9.000
11.000
(7) Set TI as listed in (a) through (d) below:
(a) Press Rx TEST key then [RF Gen].
(b) Press FREQ and set to 0.5 MHz.
(c) Press Rx TEST, [Mod Gen], [Gen1/Gen2] until MOD2 FREQ is
highlighted, FREQ, and set to 10 kHz.
(d) Press Rx TEST, [Mod Gen], [Gen1/Gen2] until MOD2 FREQ is
highlighted, LEVEL and set to 10 kHz.
(8) Configure measuring receiver for FM deviation measurement with Peak+
detector, 300 Hz high pass filter and 15 kHz low pass filter. If measuring receiver
indication is not within limits specified in first row of table 12, perform b below.
(9) Repeat technique of (7) (a), (b), (d) and (8) above for remaining TI frequencies
and modulation levels in table 12. If measuring receiver indications are not within limits
specified in table 12, perform b below.
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