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Downconverter Noise Figure Testing with N8975B

Question asked by on Jan 4, 2018
Latest reply on Jan 8, 2018 by


I have a downconverter with an IF frequency of 960 MHz. Let's say the tuning range of the RF front end is 5-10 GHz.

How do I tell the NFA to apply the ENR values for 5-10 GHz and not use the 960 MHz ENR value?

I have put the NFA in to Downconverter mode and entered the IF frequency. LO Mode is set to Swept.

The ENR mode is Table and the values are correctly entered in to the table. But, it appears the NFA is using the IF ENR values, and not the ENR values that cover the RF frequency range.

Any help would be appreciated.