Table of Contents
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Tests and Adjustments
Performance Tests
13.The noise receiver compression is calculated as the difference between
the noise power density measurements minus the difference between the
standard receiver measurements. The standard receiver is operating
within its linear range, so it is used as the linearity standard for this
measurement.
14.Steps 11 to 13 are repeated for each of the three gain stages.
If the Analyzer Fails this Test:
A failure of this test indicates a fault in the noise receiver chain. This can
indicate a faulty assembly or a loose cable.
— Check for proper torquing of all semi-rigid cables in the receiver chain, and
then repeat this test.
— If the analyzer still fails this test, replace the A7 Noise Receiver board and
repeat this test. Refer to
page
3-50
"Removing and Replacing the A4–A17 Boards" on
7-18.
Keysight N5247B Service Guide
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Table of Contents
Troubleshooting
