Reply To: 100kHz on Signalhound display

I think the following is quite a useful follow up. I have set the RBW to 30kHz and the VBW to 3kHz. I have averaged 100 sweeps. The trace shows the Y-factor from our amplifier with an RFDesign RFD2305 noise diode with an ENR of 5.7. Most of the 100kHz/ 200kHz is gone and we get a fairly flat noise trace. The noise figure is calculated from the ENR and the Y-factor and comes to 1.32dB. A test house measurement of the same amplifier gave a noise figure of 1.27dB. This figure was measured on HP346B noise figure meter.