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-B-2010
5
:
Synthesizer PLL Output Adjustment
RX Ant, Rf and 1st 1F Adjustment
Procedure:
Procedure:
.
R332
2002
output
AM rf signal
generator
.
oscilloscope
30 % amplitude
modulation by
|
|
|
|
;
1 kHz signal
joo
frequency: 27.175 MHz
I
@ for IFT302 |
@
oscilloscope
generator output: about 3.2uV (—100B)
|
:
\
for
|
Adjust IFT101,
IFT102
and
IFT103
for a maxi-
|
IFT301
mum waveform reading on the oscilloscope.
'
Adjustment Location:
~ main board oa
1FT103
I1FT102
{FT101
1. Adjust IFT302 for a maximum
waveform reading
on the oscilloscope at R332.
;
2. Adjust
IFT301
for a maximum
waveform
reading
on the oscilloscope at the output terminal.
Adjustment Location:
— synthesizer board —
IF T302
1FT301
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