Specifications

Absolute Amplitude Accuracy Troubleshooting
Agilent Technologies
PSA Series Spectrum Analyzers
Test and Adjustment Software
Absolute Amplitude Accuracy Troubleshooting
Related Adjustments
● 50 MHz Calibrator Amplitude Adjustment
● Switched LO Distribution Amplifier Adjustment
● Second LO Power Adjustment
Perform the 50 MHz Calibrator Adjustment if this test fails. If the adjustment does not
cure the problem, suspect a hardware failure. See the PSA Service Guide for
troubleshooting information. Assemblies that can cause a failure are anything in the
Lowband signal path, especially the input attenuators or A20 Lowband Assembly.
NOTE: This test might fail due to incorrect calibration data of the 8494 and 8496 step
attenuators. Make sure you have entered the calibration data for the step attenuators that
you're using. Please refer to the
Enter Equipment Calibration Data section in the TME
help for details on how to enter this data. You must enter the data for the following
columns to obtain valid results: Attn(dB), Uncert(dB) and ReflSize.
http://mktwww.soco.agilent.com/field/lp/PSA/PSAcalSWwebhelp/Troubleshooting/troubleabsampstd.htm [5/29/2003 8:47:47 AM]