Hello,
I am new to this list, and you can probably guess why. :) Name is
Dave, call is NK7Z. I hope this is the correct list for this sort of
question. If not, please forgive... I looked in the archives, and
was unable to locate anything to help with a noise problem I am
having...
All of a sudden a few months ago, I have an incredibly strong broadband
noise on only 40 Meters. I have a clip of it at:
http://www.nk7z.net/40.mp3.
I added a reference of no noise on 75 at the front, and a quick switch
between 75 and 40 a few times at the end.
My 40 Meter noise level used to be around S1 or 2. Now it is S9 to 10
over almost 7 X 24. I have a graph of S Meter value vs time at:
http://www.nk7z.net/033011.pdf.
Broadband, maybe .75 MHz wide, (could just be the passband of my
Antenna). Tried to track it, and can't find it with a portable
shortwave...
If I take the SW receiver to my Vertical, and hold it near, the noise
is strong, very strong... Thinking I had something going on in the
house, I pulled the cable from the antenna at the base, and it is still
strong, so the Vertical is re-radiating it... Any suggestions on how
to locate this noise, or what it might be? I have checked the Power
Line, and I do hear it there, so I killed power to the house and tried
the Vertical test again, same noise...
Thanks,
Dave
NK7Z
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