[600MRG] Re-post: Strange Signal in 630M WSPR Band

[Neil Klagge]

Ken, it looks a bit familiar to me. For about 3 years I had a signal
similar to that coming from a neighbor across the street. It took me a year
to find out where it was until I took my 30m xcvr and a small loop around
the block and it led me straight to his house. I noticed that he had a
security system (ADT company) and I always wondered it that system was
polling each window and door in the house and maybe causing the jumps in
freq. He finally moved out and the problem stopped. I suspect the new
people might not be using the service.

All this is pure speculation as I was never able to find out what it was.
He would not give me permission to search inside the house.

My penny's worth.....
Neil


On Wed, Sep 18, 2013 at 5:21 PM, Kenneth G. Gordon <kgordon2006 at frontier.com
> wrote:

> We got it both times, Claude. Maybe your ISP is slow.
>
> Ken W7EKB /24
>
> On 18 Sep 2013 at 16:07, Claude Baker wrote:
>
> > Sorry for the re-post, my link wasn't accepted.
> >
> > I'm wondering if  anyone might recognize or even speculate on the
> > origin of a signal I've been seeing for the last couple of weeks.
> >
> > I'm a
> >  relatively constant presence on the 630M WSPR band. Over the last
> > couple of weeks I've noticed a stepped signal showing up in my
> > display. Initially I thought QRSS but as I looked more closely I
> > noticed the use of multiple frequency steps spaced at 10 Hz intervals.
> > When I finally noticed that they seemed to be a fairly precise 30
> > seconds long, I used Spectrum Lab's 30 second per dot QRSS mode to
> > display the signal.
> >
> >
> > I posted a screen capture taken today, 2013-09-18, that covers roughly
> > 1500Z to 1630Z: http://www.flickr.com/photos/102149795@N06/
> >
> > Info about the signal reception:
> >     1. Relatively local to Aurora, CO - I see the signal day and
> > night.
> >
> >
> >  2. I live in an antenna free neighborhood so I use an indoor loop,
> > 8'x13', tacked to the back wall of my radio room. Although I have not
> > been able to detect any real directionality as expected for a loop, it
> > is oriented in a 105-285 degree plane.  Using Google maps to project
> > the
> >  eastward lobe, the centerline hits the Atlantic at right on the North
> >
> > Carolina/South Carolina border.
> >
> >     3. The signal does move but
> > note that it frequently returns to a step at about 1530 Hz in the
> > display - visually forming a straight line (little, if any drift ).
> > 1500
> >  Hz in the display corresponds to 475.700 KHz
> >
> >
> >     4. The
> > signal occasionally goes off for about 20 minutes and usually returns
> > in
> >  slightly different frequency range. As I write at approximately
> >  2000Z,
> > the range is 1600-1650 Hz.
> >
> > Earlier today I communicated with John
> >  at WG2XIQ to ask what he thought. He offered some speculation but
> >  from
> > my perspective, his most important observation was that it might not
> > be an intelligent communication but rather "noise" or a harmonic from
> > some electronic system. That is not a quote of what John said but
> > rather my summation.
> >
> > Please, any ideas?
> >
> >
> > Claude Baker, AC0ZL
> > Aurora, CO
> > _______________________________________________
> > 600MRG mailing list
> > 600MRG at w7ekb.com
> > http://w7ekb.com/mailman/listinfo/600mrg_w7ekb.com
> >
>
>
>
> Kenneth G. Gordon W7EKB
>
> "Courage is being scared to death but saddling up anyway."--- John   Wayne
>
>
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>



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