AnsweredAssumed Answered

PNA-X noise figure magnitude offset problem

Question asked by rok on May 28, 2014
Latest reply on Jun 6, 2014 by Dr_joel

I'm using A.09.90.09 firmware. The problem I am encountering is that when I am entering a 0.1dB magnitude offset, the noise figure measurement markers shows only a 0.05dB change. In the attached pictures, for marker 1, it has a value of 1.12. In the next picture, I apply a 0.1dB change, but it only changed to 1.17 instead of 1.22. When I try it for a S21 measurement trace, it has no issues. Is there something special about the noise figure measurement I am missing?

Best regards,