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Re: Supply noise at higher harmonics #internals


 

Well, has anyone measured the +5 V rail(s) to see how noisy they are? Once that is done the specs for the parts powered by +5 V would need to be looked at to see how noise is too much.

DaveD

Sent from a small flat thingy

On Oct 17, 2019, at 15:58, bryburns via Groups.Io <bryburns@...> wrote:

On Thu, Oct 17, 2019 at 11:32 AM, <erik@...> wrote:


Next picture shows what happens when you use a clean 5V supply. Much less
noise in the reference signal.
Erik,

This data seems to suggest that if we had better by-pass capacitors on the 5V supply noise in measurements would be reduced. Would you agree?

--
Bryan, WA5VAH


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