3-40 Keysight N5221A/22A Service Guide
Tests and Adjustments
Performance Tests
3-
7. With the 1 dB of overlap in each measurement, the data for each
attenuator setting can be stitched together to provide a complete receiver
linearity profile from +3 dBm to -63 dBm.
8. This test is repeated for each receiver.
If the Analyzer Fails this Test:
—If the analyzer fails this test, rerun the test.
— If the analyzer fails this test repeatedly, replace the A23 mixer brick for a
Port 1 or Port 2 failure or the A24 mixer brick for a Port 3 or Port 4 failure,
then repeat this test. Refer to “Removing and Replacing the A23 and A24
Mixer Bricks” on page 7-37.
— If the analyzer still fails this test, replace the A12 SPAM board and repeat
this test. Refer to “Removing and Replacing the A4–A13 Boards” on
page 7-15.
To Next Page
Loading...
