Tracking Oscillator For Option 010 - Agilent Technologies 8590 Series Service Manual

24. Tracking Oscillator for Option 010

This adjustment applies to:
8593E spectrum analyzers, Option 010
8594E spectrum analyzers, Option 010
8595E spectrum analyzers, Option 010
8596E spectrum analyzers, Option 010
This is not a routine adjustment. This adjustment should only be
performed if the range of either the automatic tracking peak
adjustment (
TRACKING PEAK
( ) is insufficient to peak a signal.
MAN TRK ADJUST
The centering of the tracking oscillator range is adjusted in the factory
to ensure that the tracking adjustment will work properly. Over a
period of 5 years, however, the center frequency of the tracking
oscillator range may drift outside of acceptable limits.
The tracking oscillator range is checked first. A tracking peak test is
performed and the output frequency is recorded. Then the manual
tracking adjustment is set to its minimum and maximum values and
the output frequency is recorded. The minimum and maximum
frequencies are compared to the peaked frequency. If the difference is
less than 5 kHz, adjustment is necessary.
The adjustment recenters the tracking oscillator range. The A3 RF
assembly is placed in its service position to perform this adjustment. A
frequency counter is used to measure the output frequency.
Equipment Required
Microwave frequency counter
Termination, 50 Ω termination
Alignment tool, non-metallic
Cable, BNC, 122 cm (48 in.) (two required)
Adapter, Type N (f) to APC-3.5 (f)
Adapter, Type N (m) to BNC (f)
Chapter 2
24. Tracking Oscillator for Option 010
) or the manual tracking peak adjustment
Making Adjustments
145