[RFI] electric fence interference

[Tim Groat]

Typical electric fence problems are plant growth touching the wire, wire 
falling out of insulators and arcing to other fence parts, improvised 
"insulators" made from who knows what scrap material, rusty terminals on 
the charger, and bad connections where the fence wire is poorly spliced. 
Everything in the fence must be properly insulated or reliably joined; 
so-so workmanship and materials cause trouble.

Talk nicely to the fence owner about how you can hear the fence arcing, and 
how that might ignite dry grass or weeds (it does happen!). Also how the 
fence may not be working as effectively as it should. Often they will be 
happy to walk around with you looking for trouble spots, but some folks are 
just plain difficult...

My next door neighbor has a working electric fence (how do I know? Can you 
say OUCH?). It gives me no RFI problems, so it is possible to have an 
RF-quiet electric fence.

73 and good luck,
--Tim (KR0U)

>David Garnier <dgarnier at wi.rr.com>:
>
>I am posting this for another friend (yes I have them,) who is 
>experiancing the cyclic "one a second" interference spike from a nearby 
>neighbors electric fence.
>
>We have gone as far as draging a hp 8594em out into his yard and it's an 
>ugly broad-band decaying pulse which extends past 70 Mhz (maybe worse 
>given our simple antenna for the spectrum analyzer.)