[RFI] New to list...

Dave Cole dave at nk7z.net
Fri Apr 8 22:52:07 PDT 2011

Hi all,

I found my noise!!  It is 3/4 of a mile away, and very loud there...
Like 40 over S9 in my mobile rigs S meter.  S7 in the same rig at my
home.  Only took about two hours total to track it down.

It is the same noise, I am sure, I drove from what appears to be the
source, the power feed from the overhead power pole pig, to what appears
to be an unoccupied home, all the way back to my home. I will be calling
the power company Monday, so they can investigate further.

The process was as follows:

1.  Grid off the area.
2.  Drive all over, making sure to keep track of sig strength on the
low band rig in the car.  The rig was set to AM to make it simpler to
3.  When getting close to what we thought was the source, hop out of
the car, using the portable SW radio, DF it looking for null.  That
pointed to the general area of the power feed.  

As I said, next step is to contact the Power Company Monday, and have
them do any more poking around.

Thanks to all for the help!!


On Wed, 6 Apr 2011 20:39:59 -0700
Dave Cole <dave at nk7z.net> wrote:

> Hi,
> Thanks for the info!  I purchased a nice little SW rig tonight, with
> the extendo antenna...  I needed a portable SW rig anyway, and it does
> SSB to boot.  Anyway, I hear not a thing below about 6.5 MHz...
> Whatever this is it is very odd...  On most of the time, See graph on
> web page of S meter vs signal strength, and very very broadband, just
> a spray of RF sitting at S9 or better...  
> Would you expect that the vertical would re-radiate the signal?  When
> I get near the vertical with the portable, the level goes way up.  If
> I short the connector at the base of the antenna it goes away.  I
> know it is not anything I have going, I killed power to the house,
> and it keeps right on...  It has totally destroyed my 40 Meter DX
> every morning...  I can't even hear the JAs.  USed to be able to work
> the VK too...
> Dave
> NK7Z

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