I think that DSO138 scope would be quite useful for audio stuff and for looking at control lines from the Nano.
I'm not convinced it would show an envelope when looking at RF from the modulator, just a DC average.
JYE has posted their manual with complete schematics:
? ??
and posted their original source code (the stuff I pointed to earlier has a few extra features):
? ??
Would be good karma to buy from them, and their's is more likely to work and get technical support.
There are clones.
Jerry
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On Thu, Feb 1, 2018 at 01:32 pm, Dexter N Muir wrote:
RF to/from will show the envelope.