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SB-740-5821-91-004 Radio Set AN/ARC-54 Manual
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Figure 2. Transmitter test setup XMODE.


aligned, proper left-right deflection will
tions is not obtained after adjustments
now be possible.
of R224 and R227, it may be necessary
to adjust coils L-204 and L-205. The coils
6. With each adjustable attenuator set
should be peaked at 50.00 MHz. A fre-
for 6 db each, set the signal generator output to
quency counter such as the CP-772/U
2000 microvolt. When using the ID-1351A, the
with plug-in unit CV2002/U or equiv-
horizontal pointer (signal strength indicator) on
alent should be used to make sure that
the left side of the ID135/A should be centered
the signal generator is on FREQUENCY.
on the first dot below the rest position of the
When these coils are peaked, resistors
pointer. If a microamp meter is used, the reading
R224 and R227 may have to be re-
shall be 37.5 microamps plus or minus 20 micro-
amps. If the above indication or microamp read-
adjusted. If the RF and IF sections of
ing cannot be obtained, adjust R211 on the
are  properly
the AN/ARC-54( )
NOTE:
CONNECTION OF MODULATION METER,
FREQUENCY METER AND 0.2UF CAPACITOR
EL740-5821-91-004-SB-I
IS FOR TONE DEVIATION TEST
Figure 1. Transmitter test set u p .
12


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