Hello,
Until I'll buy a proper SA I am playing with a combo made of an Anritsu MG3633A and a Picoscope 3206MSO.
I have made a simple crystal ladder filter with 3 poles, all xtal are 11.0592MHz and then set the generator to output a 0dBm signal
start at 11.00 MHz
stop at 11.10 MHz
The first graph has step size 10Hz and dwell time 10ms
The second step size 1Hz and dwell time 1ms
Apart from the later taking way longer to complete and a much cleaner plot the measured shape and the amplitude at top are very close.
Is there any rule to set dwell time, step size, span for better results?
Thanks.