On Sun, 04 Dec 2011 16:41:04 -0800, DEFCON 88 wrote:

On Dec 2, 2:55Â*pm, Mike wrote:
While scanning the 25 meter SWBC band, I noticed some strange signals
between 1830 and 1930 UTC. Sounded like time pulses every other second
when compared to WWV. Strong in both AM and USB, only barely audible in
LSB or lower sync. Incredible range of // oddball frequencies: 11098.5,
11220.7, 11342.1, 11587.1, 11648.1, 11709.2, 11892.5, 11953.5, 12105
(underneath WTWW), 12136.6, 12190.1, 12228.2, 12442.1, 12503, 12533.6,
12686.3. I finally gave up, so there are probably more. Some
frequencies might be off by 100 Hertz, since i was using an old Sony
ICF-2010. Also, some were incredibly strong, others sounded further
away.

Any ideas?

Mike,
Louisville, KY

Blinking Christmas lights? Take the 2010 for a drive around your
neighborhood and maybe you'll find the culprit. Who knows, maybe they'll
QSL.

Look for a new switch mode power supply in the house (they are usually L
shaped and say Efficiency 4 (IV) or 5 (V)