I live about 2 miles from San Francisco International airport.
And I get a kind of annoying interference all up and down the SW
bands, although perhaps a little stronger on the higher frequency
end. Kind of a "schwufff... schwufff... schwufff..." that
repeats every second or so. It must be at a pretty low level
since it drops away when I catch a strong station.

Also, I haven't heard that at all on my scanner (FM, tho, I
know.)

First guess that now seems unlikely was the airport radar.
Thought of that because of the periodic nature of the noise. And
yes, I've shut down everything in the house by opening the main
breaker (had to do that for a repair anyway) and still got the
rfi.

Any guesses out there?



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This calls for a careful blend of
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