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Old 07-10-2014, 11:00 PM
Boombox Boombox is offline
Join Date: Sep 2012
Posts: 706

Don't rule out RFI.

Whenever I hear 'warbling' near a broadcast signal, that's generally the first thing I think of.

I have several devices whose switching power supplies / DC-DC converters, etc. put out weak signals in various places in the SW spectrum.
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