On Tue, Jul 28, 2020 at 01:26 PM, hwalker wrote:
?A third option is to put one tinySA in max hold and step a second tinySA/rf generator 290 points using the same step-size as the first tinySA.? I get a pretty clean trace that way, but haven't figured out how to normalize a max-hold trace.
? I swept a filter using the proposed third option and realized that a limitation is that harmonics of the tinySA output are 40dB down.? That's actually pretty good for a $50.00 device, but in MAX-HOLD it also means you can't see more than 40dB down because the harmonics lead the sweep.
? The alternative is not to do MAX-HOLD and instead read the peak carrier level at each 290 point generator step, and plot the accumulated data in an external program.? That should get you 70dB or more of dynamic range.??
- Herb
