SAC SS-800AVS Manual page 89

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i0.
ii.
signals present on the voltmeter leads may affect the spectral
purity of the oscillator, the voltmeter should not be left
attached to TP4 during normal transmitter operation.
NOTE:
With large variations in ambient temperature, some
variations in the TP4 error voltage will be noted, with the
voltage increasing gradually with increasing temperature. This
does not indicate a change in frequency, and is permissable
within the range of 2.0 volts to 7.0 volts. This should be
sufficient to handle temperature variations of -60°F (-51°C)
to +122°F (+50°C) from an initial setup temperature of 77°F
(+25°C). Readjustment of the error voltage to 5.0 volts after
arrival of the transmitter at the final ambient temperature
is recommended to allow the greatest tolerance to temperature
and component variation.
Set the switch on the Recycle PWB to CONT.
the Auto Shutdown PWB to OFF.
Set the switch on
Adjust the RF DRIVE on the AM Oscillator PWB for a reading of
approximately i0 watts.
NOTE: If the filter is badly out of adjustment, it may be
impossible to get an RF output reading until Step ii is per-
formed.
Adjust the inductor L1 on the AM Oscillator PWB for maximum
output. If there is a large increase in RF power, decrease
RF level with the RF DRIVE control in order to keep the power
level at approximately i0 watts.
96
Southern Avionics
Company
SS~800AVS

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