On Wed,2/24/2016 2:26 PM, Pete Smith N4ZR wrote:
Does anyone have any ideas from this "signature" what I might be
dealing with here?
Hi Pete,
You're being serenaded by hundreds of switching power supplies and
microprocessors. If they drift, they're SMPS. If they don't, they're
from a microprocessor. I'd take a WAG that the average residence has at
least 30 such noise sources. Virtually every wall wart, battery charger,
PS for low voltage lighting, computer, computer accessory, variable
speed motor controller, etc. is an SMPS.
73, Jim K9YC
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