[Elecraft] RF Noise in the Neighborhood
Eugene Balinski
eugeneb at nni.com
Mon Oct 18 12:52:57 EDT 2010
See the article in QST (Apr 2006, pp 41-46) by Jim Hanson
W1TRC (SK) about the Ultrasonic RFI detector. Very helpful
in locating all sorts of interference issues. I believe
that the design has been turned in to a kit.
73
Gene K1NR
K2 6K
On Mon, 18 Oct 2010 08:26:56 -0700
"Ron D'Eau Claire" <ron at cobi.biz> wrote:
> Many streetlights will do the same.
>
> Ron AC7AC
>
> -----Original Message-----
>
> The powerline noise was masking another
> noise source that was trashing everything from 80 up to
> 10m. This noise was
> about S5-7, but would cycle on an off....on for about 40
> seconds, off for
> about 20 seconds then back on. .. Eventually
> tracked it down to my neighbor's sodium vapor flood
> lights. These lights are
> notorious for generating interference when they are on
> their last legs. Had
> the rig on and observed his light flickering (noise
> present), going off
> (noise gone) and then coming back on (noise returned).
> Neighbor would not
> replace it until it eventually craped out....
>
> Harry WE1X
> --
>
>
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