Tests and Adjustments
Adjustments
Adjustments
These adjustments are firmware-driven tests that are used to fine-tune your
analyzer.
If multiple adjustments are to be performed, perform them in the order listed.
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These adjustments are described on the following pages.
10 MHz Frequency Reference Adjustment
The 10 MHz frequency adjustment is used to adjust the frequency accuracy of
the network analyzer's 10 MHz frequency reference on the A14 frequency
reference board assembly.
Equipment Used for the 10 MHz Frequency Reference Adjustment
Equipment Type
Cable, BNC, 50W, 24 inch
Frequency counter
Procedure
This adjustment typically adjusts to within ±0.01 ppm.
1. Connect the equipment as shown in
Keysight N5224A/25A Service Guide
"10 MHz Frequency Reference Adjustment" on page 3-41
Model or Part Number
8120-1839
53151A, Option 001
between the network analyzer and the frequency counter.
Alternate Model or Part Number
Any
Any that will measure a signal at 10 MHz.
Figure
3-14. Connect a GPIB cable
3-41