[Flexradio] ...odd signals...

[Geep Howell]

Are you, by any chance, in an area that is served by BPOL?  This  
sounds suspiciously like just that kind of interference, although it  
does not normally extend higher than 35 Mhz or so.

geep
wa4rts

On Oct 1, 2009, at 10:23 AM, John Ragle wrote:

> Jim...
>
>   I live out in the countryside on a dead-end road (in the middle of  
> a corn field) with 12 houses on it. My panadapter screens on almost  
> every band are filled with spurious signals that go away when I  
> remove the antenna (or connect to a 50-ohm dummy load). I have tried  
> turning off my WiFi router (no relief), my wife's computers (no  
> relief), disconnecting my cable modem (no relief). Similar spurs  
> show up on my non-digital 2 meter rig (IC-910) with all the  
> household computers and the modem off, and those also go away when I  
> disconnect its antenna. The most common of these spurs is a cluster  
> of 3 narrow signals spaced by 1 or 2 kHz and occurring every 90-95  
> kHz or so. They do not appear to be a carrier and sidebands. Some of  
> the spurs wander slowly across the spectrum at a rate of a few kHz  
> an hour.
>
>   My cable service and all my other services are /*underground*/ up  
> to the house. I have not tried shutting down the power to the house  
> (awkward), but conclude these are real signals emanating from the  
> neighborhood. The nearest above-ground power, phone, and cable lines  
> are at least 500 feet from the house. Many of my close neighbors run  
> computers of unknown vintage. My choice is either to hire out a "fox  
> hunter" or ignore the spurs. By now, the spurs are "old friends."
>
> John Ragle -- W1ZI
>
> _______________________________________________
> FlexRadio Systems Mailing List
> FlexRadio at flex-radio.biz
> http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
> Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/
> Knowledge Base: http://kc.flex-radio.com/  Homepage: http://www.flex-radio.com/
> Message delivered to geep at wa4rts.net
>