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Gain Msmnt Accuracy Using E4407B and NF Personality

Question asked by tbaugh on Nov 14, 2012
Latest reply on Nov 16, 2012 by tbaugh
What is the gain measurement uncertainty when using the noise figure personality and a 6 dB ENR source with an E4407B? Page 325 of the "Specifications Guide for ESA-E Series Spectrum Analyzers" shows instrument uncertainty to be +/- 0.83 dB.  Is it really going to be that much when measuring gain of a 20 dB amp with 3 dB NF?