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 TM 11-6625-2884-30/NAVAIR 16-35TS3615-2
CON SCAN MODULATION CHECK (Continued)
3. Set CS FREQ tens switch
and observe modulation
period.
I
Switch
Position
Period
8
12.5
ms
7
14.3
ms
6
16.7
ms
5
20.0
ms
4
25.0
ms
3
33.3
ms
2
50.0
ms
1
100. O
ms
Same as in step 2.
Set CS FREQ switch to
4.
90 and CS MOD DEPTH
switch to 1 dB.
Set INPUT RF ATTENUATOR
5.
1A2AT1 on Status Panel
to 2 dB.
Set oscilloscope for - UP
6.
display. set Pw to 4 s.
Set PRI to VAR PRI. Increase
oscilloscope gain until the
modulation is equal to 1 DIV
peak-to-peak. Set modulation
bottom on a horizontal refer-
ence line.
I
SWEEP:
2.0 ms/DIV
3-32
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