[RFI] Electric Fence pulsing (will get worse soon !)

[Mike Smith VE9AA]

Hi Roger, 

Just a wild guess...perhaps 1000' or a titch better.  Not a huge fence. It's
been QRV about a year and I never remember hearing it as the paddock was
very small and not much for weeds around it.  Now, instead of encircling
about 1 acre or a little less, he encircles perhaps 5-6 acres, which runs
through woods and has lots of weeds/grass.

This gives me hope for winter, as the deep/heavy snow will knock down a lot
of the weeds into the ground and remove a lot of arcing----I hope!

Still, my summer DXing and contesting is severly compromised....

Mike

Mike, Coreen & Corey
Keswick Ridge, NB

-----Original Message-----
From: Roger D Johnson [mailto:n1rj at roadrunner.com] 
Sent: July 21, 2015 6:51 PM
To: Mike Smith VE9AA
Subject: Re: [RFI] Electric Fence pulsing (will get worse soon !)

YES!! The fence will arc to the weeds! An AM radio is not the best tool as
the noise propagates along the fence wire. A VHF/UHF radio is better but
usually you can hear the arc. This may not be true where you have large
areas of grass grown up touching the wire. How long is the fence (total)?
Perhaps a gasoline powered weed-whacker would do the job.

73, Roger


On 7/21/2015 21:27, Mike Smith VE9AA wrote:
> Hi Gang !
>
>
>
> Small update on the issue.
>
> I visited the neighbour today to have a casual chat.  I am trying to 
> make this important, but not "end of the world" in talks with him.
>
> (even though the QRM is pretty severe on 40-80-160 (s9-20dB/9) and bad 
> on
> 20-15 (s5-7)...not too bad on 10- 6 - 2 (s1-2)
>
>
>
> His unit is showing 10kV, but I touched the far end as it came around
1000'
> of feet of rope and barely felt more than a spark.
>
> Touching a doorknob in the winter is worse!
>
> I tested the fence behind my house and am not even seeing 300V on my
meter.
> (the lowest light)
>
>
>
> He claims to have consulted "an expert in fencing" and was told weeds 
> would not affect it at all.
>
>
>
> The last thing I want to do is get in an argument with this 6'4" 250lb 
> large fellow, who is actually quite a nice guy, so I didn't press the 
> issue, but I never really noticed
>
> any REAL noise until the grass and weeds suddenly spurted up here in 
> mid to late May.  This is NB (VE9) so our growing season is well 
> behind you fellas south of the border.
>
>
>
> Am I crazy, or is all this arcing "probably" taking place to the 
> weeds?  He has 2 layers of rope fencing.  One at perhaps 18"-24" off 
> the ground, literally enveloped in weeds and grass and a top layer of 
> rope up 4-5', with nothing touching it. (I didn't walk the fence yet, 
> but I will maybe next
> week)
>
>
>
> Second question.  Would an AM radio highlight an area that was 
> sparking or just be loud regardless? (like if it was sparking to the 
> weeds the whole 1000' for example)
>
>
>
> His Clydesdales have figured out the fence is not very hot and have 
> tested it some. (long story)
>
>
>
> Mike VE9AA
>
>
>
> Mike, Coreen&  Corey
>
> Keswick Ridge, NB
>
>
>
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