Hi Andrew,
Thank you for the answer. My SA44B look almost the same. I don’t understand what are those spurs around 500-800MHz?!
Do you have in your future plans to normalize the overall noise floor?
Like measure it then mathematically extract it from the measurements the display it just to look linear.
In a 100kHz-100MHz span with RBW/VBW 6.5kHz and -60dBm ref. the noise floor was about -115dBm average. For this BW the thermal noise at 300K is -136dBm. That means that the overall analyzer’s noise contribution is 21dB?
Thank you.
BR,
Cristian