[Elecraft] OT: Electric fences

[WILLIS COOKE]

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 <w8ji at w8ji.com> wrote:

> From: Tom W8JI <w8ji at w8ji.com>
> Subject: Re: [Elecraft] OT: Electric fences
> To: "Ken Kopp" <k0pp at rfwave.net>, elecraft at mailman.qth.net
> 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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