[sdiy] Analog & Digital Ground

[Harry Bissell Jr]

--- Seb Francis <seb at burnit.co.uk> wrote:


> No, I'm not letting the FCC in my house either ;)
> I just don't like to see the little HF spikes that
> PICs tend to make, 
> appearing all over my high-fidelity analog
> circuitry!
> Probably they're not even audible, but they show up
> on the scope and 
> it's just playing it safe to try and filter them.

with the small loop area, you are depriving them of a
way to couple into the circuit.  With the power and
grounds
more or less isolated, they should not end up on the
audio.  You still have a transmitter but you broke the
antenna off...

H^) harry