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iCB-201(
RX 2nd IF Adjustment
SQUELCH
Adjustment
Procedure:
Setting:
SQUELCH
control:
center of rotation
AM rf signal
VOLUME
control:
maximum
generator
oscilloscope
Procedure:
ae
EXT SP
1. Adjust RV102 to the point where the noise output
O
:
from the speaker just disappears.
G
2. Turn
SQUELCH
control
from
minimum _ to
30 % amplitude
maximum
and
check
that squelch
operates
and
modulation by
A
a
1 kHz signal
noise
disappears
at
the
center
of SQUELCH
frequency: 27.175 MHz
me
control rotation.
generator output: about 3.2
uV (—10dB)
Adjustment Location:
Adjust
IFT104
and [FT105
for a maximum
read-
— main board —
ing on the oscilloscope.
RV102
Adjustment Location:
— main board —
{FT104
1FT105
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