1) The sampling rate is 80MS/s IF which we convert to 40MS/s IQ.
2) Yes, we do overlapped FFTs. I apologize, 1.25 is not necessarily the exact number, it’s going to depend on the overlap amount. The idea being the same though, the energy needs to be present in a significant portion of the FFT to show up at the correct amplitude on the spectrum.
3) It depends on what you need from the measurement. This will also mean that the waterfall only has 30ms resolution, which some people might want a smaller resolution, in your case see activity in the waterfall between the pulses.
Regards,
