[CQ-Contest] FOLLOWUP: 3second ON/OFF QRN

[Dan Eskenazi]

Last week we wrote up a strange 3 second ON and 3 second OFF QRN that
was wiping out the HF bands. Posted a noter here, and some wrote and said 
they were hearing the same
thing at their QTHs, while most never heard it. Turns out that the writer 
in TX had
recently purchased a SHARPER IMAGE QUADRA AIR FILTERS recently,
as had I,  and discovered he had the same QRN; while the other writer in NV
had the same noise but no air filter!  Others may be hearing a neighbors unit.

So after unplugging the offending unit,  decided to change it out with the
other one we had got for another area of the house, and voila the noise was 
gone.
Just reversed their QTHs, and no noise from either.
FYI we have old style two prong outlets, and that may be the problem in the 
first place.
We await word from engineers and seeers who may be able to explain the 
phenomenon.

What a RELIEF to have a quiet band again!

(and YES this has ALOT to do with CONTESTING)

73
Danny K7SS