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Re: OT: Electric fences

Posted by WILLIS COOKE on Aug 22, 2008; 5:12am
URL: http://elecraft.85.s1.nabble.com/noise-blanker-tp735319p742091.html

I have a pulse noise that I thought was a fence charger, but it is to the north and the only electric fence that I have found is south east.  In another internet discussion someone mentioned that he had traced a similar interference to a blinking caution light.  Sure enough I have a blinking caution light 1.5 miles to the north.  Fortunately for me the interference is very light and can only be heard on a nearly dead band.  Fence chargers are not the only source of a pulse with about one second interval.

Willis 'Cookie' Cooke
K5EWJ


--- On Thu, 8/21/08, Tom W8JI <[hidden email]> wrote:

> From: Tom W8JI <[hidden email]>
> Subject: Re: [Elecraft] OT: Electric fences
> To: "Ken Kopp" <[hidden email]>, [hidden email]
> Date: Thursday, August 21, 2008, 6:01 PM
> > Again, the noise isn't from the charger ...
> it's generated
> > along the wire.  Carrying an AM radio along the fence
> may
> > be helpful  and is useful in illustrating to the fence
>
> > owner what
> > you're talking about.  He/she may already be aware
> of the
> > noise and not know the source. (:-))
>
> While it is true most problems seem to be caused by bad
> connections in the fence, the most severe problem I had
> with
> an electric fence was caused by a charger! The charger was
> sent back and the replacement charger produced exactly the
> same problem. I put RF chokes on it, ferrite beads, you
> name
> it.
>
> My neighbor switched to a different brand and the problem
> vanished.
>
> I've generally had varying success with an AM broadcast
>
> radio, but a VHF aircraft radio always lets me walk right
> up
> to the bad area.
>
> 73 Tom
>
>
>
>
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