Hello,
I've been looking at various scopes from the usual sources and wanting a scope that could give high Dynamic Range for the standard 2 tone IMD tests using an FFT. The moderately priced scopes mostly seem to have 8 bit ADCs with exception of the R&S which has a 10 bit ADC. Has anyone done any FFT based 2 tone IMD tests at low (~10KHz & 100KHz) and medium (1MHz) and higher frequencies (>10MHz)?
I know this test is more in line with a Spectrum Analyzer, has anyone done these test and frequency range with a modest SA?
I think the new dual channel 16 bit AWGs from Rigol and Siglent might be a good source for the 2 tones, using a resistive combiner at the outputs.
Anyway, interested if folks have done any of these test and any comments, recommendations are welcome.
Seems this would be an interesting comparison for the various scopes, SA and AWGs now available.
Thanks in advance.
Best,