[RFI] Rfi from a neighbor.

[Gary Smith]

Hi Lee, 

Thanks for the reply. The specific file I heard was called 
w1uk-dogfence.mp3 & they do have other instances of RFI from electric 
fences on the top of that page, this fence is the one at the very 
bottom of the page. It's not a clicking/ticking sound at all, it's 
very digital in nature. 

Where we are, there are no electric fences, it's what used to be a 
secluded seaside private development & now there's a whole lot more 
houses than there were before & there hasn't been an electric fence 
here since the early 60's. This sound has been there for 4-5 years 
I'd guess but it's never been an issue till I got on 160 & the 20 
seconds of time I drive past the source when it overpowers the AM 
radio in the car. 

I'm driving up to visit a friend this evening & will pass by the 
other house that has this noise. I will stop by their place and ask 
them if they know what it is. I'm pretty sure they know about the 
problem if they use AM. Their answer might be of help. 


!@#$%^&* RFI... 

Gary 
KA1J 

> Having sold electric fences for a living, I can tell you that 
the 
> recorded ticking on the ARRL site is not from an underground 
dog 
> fence. The underground dog fence wires use a continuous RF 
> transmitter loop and a receiver on a dog collar. It only shocks 

> the dog when he goes across the underground wire. That ticking 
in 
> the ARRL mp3 is from an above ground electric fence. Two 
> important things. There will generally be no noise from an 
> electric fence unless there is an arc somewhere. Most often 
due 
> to bad connections somewhere, or the high voltage wire is 
> touching something that is grounded. Most people using these 
> things have very little understanding of electricity and how it 

> flows. I have seen installations where people just staple the 
> wire to a wooden fence and then wonder why it did not work when 

> it rained. These things operate at Kilovolts and up. Second 
> important thing is that some cities or municipalities actually 
> have ordinances against electric fences being used w 
> ithin their boundaries. It might be worth checking with local 
> authorities. This could be used as a last resort. Some people here in 
> the Pacific NW actually have electric fences around their backyard 
> fish ponds to keep the Racoons from eating their often expensive pond 
> fish. No dogs involved so be sure and check things out before any 
> direct accusations. 
> Lee K7TJR Oregon 
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