TB 9-6625-103-24
(18) Set function generator for a 1 kHz, 2 Vp-p sine wave output and turn output on.
(19) Press TI FREQ, 1, GHz and AM DEPTH, 3, 0, % keys.
(20) Set the measuring receiver to acquire the frequency.
(21) Set the measuring receiver to measure AM in units of dB and establish a ratio
reference.
(22) Set function generator to 10 Hz and press Restart on the measuring receiver.
(23) Verify that the measuring receiver AM indication is within limit specified in
(24) Repeat technique of (22) and (23) above for remaining settings listed in table 14.
Table 14. AM Flatness.
Measuring receiver
Function generator
AM indication
( dB)
10 Hz
1.0
2 kHz
1.0
3 kHz
1.0
4 kHz
1.0
5 kHz
1.0
6 kHz
1.0
7 kHz
1.0
8 kHz
1.0
9 kHz
1.0
10 kHz
1.0
15 kHz
1.0
20 kHz
3.0
25 kHz
3.0
30 kHz
3.0
35 kHz
3.0
40 kHz
3.0
45 kHz
3.0
50 kHz
3.0
(25) Reduce output to minimum and disconnect equipment setup.
b. Adjustments. Refer to paragraph 6 c.
14. Frequency Modulation
a. Performance Check
(1) Connect TI RF Out to measuring receiver RF INPUT.
(2) Set measuring receiver to measure amplitude modulation, with PEAK +-/2
detector.
(3) Press TI keys as listed in (a) through (f) below.
(a)
Preset.
(b)
RF On/Off to Off.
(c)
AMPD, -, 1, 0, and dBm.
(d)
FREQ, 3, GHz.
(e)
RF On/Off to On.
(f)
FM, FM RATE, 1, kHz, FM DEV, 5, 0, Hz and FM Off/On to On.