[RFI] mystery noise

Pete Smith n4zr at contesting.com
Wed Jan 12 11:50:17 PST 2011


I have a small active vertical for my QS1R receiver, mounted on my 
garage roof.  Using the QS1R's panadaptor display, I can see that I have 
recurrent broad, strong noise sources every 54 KHz. When listened to on 
CW with a wide (10 KHz) filter they sound like a rough CW signal, and 
the waterfall shows definite pulsations.  I first noticed these on 160, 
and searching with the QS1R they appear to be pretty much gone by 5 
MHz.  I can provide a recording to anyone who wants one.

Does the description or the periodicity suggest a source that I can look 
for?  It must be close, because my Beverage-on-Ground a couple of 
hundred feet away shows no trace.  The antenna is near the fence with my 
neighbors, so it would be helpful to know more or less wehat I'm looking 
for before I go over there.

-- 
73, Pete N4ZR

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