Sir ,we have spectrum analyzer Model No N9320a having problem of not showing the voltage below 500mv,so please send me solution for the same (we observe DSB Amplitude modulated signal having FC =500k,Fm=1Khz)same dsb signal can show on the CRO but not on the Spectrum )
Could you provide the firmware revision of this N9320A unit?
If you want to observe the signal as CRO does. Please set the center frequency of SA to 500 kH z, SPAN -> zero span, Sweep time -> 4 ms, RBW and VBW -> 100 kHz. Then the signal should be found as CRO.
Simon