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Source 2 Output Power

Question asked by YP on May 20, 2015
Latest reply on May 23, 2015 by Dr_joel
This is for a OIP3 test on the N5242A PNA-X. When running the source power calibration with the power sensor, the calibration failed at frequency around 25GHz. We have tried using different power levels and different accuracy tolerance but to no avail. We have no problem testing below 24GHz. 

It was also tested on a different PNA-X but the similar failure was observed on both PNA-X.
Attached is the PNA-X setup. 

Please let me know if this is a test setup issue or equipment failure.
Is there a way to manually to turn on Source 2 to Port 1 and set the frequency and power level to verify it?

Edited by: YP on May 20, 2015 6:24 PM