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Analog/Digital IF Troubleshooting
≥ 85 MHz BW IF Section
Manually troubleshooting the assembly is basically verifying the 300 MHz IF
signal is present and at the proper level. In addition you will want to verify input
and output levels of the various calibration and reference signals.
Additionally, the A25 Analog IF has a built in RF Burst Trigger that is available
when either the 85 MHz, 125 MHz, 140 MHz, or 160 MHz IF path is selected
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