[CW] Electric fence QRM?
Ronald KA4INM Youvan
[email protected]
Fri, 11 Jul 2003 19:15:25 +0000
A tough problem, I've been there, a bazaar construction
that I've never heard of too.
Every poor connection in your neighbor's antenna will
cause the snapping, if it is from an arc, all arcs must
be eliminated for his "rig" to be quite". This fence will
not be quite if you can hear any arc with your ear, as
your walk by the joints. (splices)
The noise eliminator in your rig is critical, try every
rig you own, and/or borrow a few to see where the K2
stands in the pack.
When it is wet, just surface dirt can make a quite fence
a little noisy, damp grass touching the "wire" is maximum
interference, if you don't hear these differences your
baseline noise level is very great, there must be a constant
arc somewhere. It could even be an arc in the lightning
protector built into the `fence charger' device.
Normally a properly maintained fence and charger will not
cause enough interference to bother you, it might just
require you to use the noise eliminator all of the time.
Getting you antenna farther away from your neighbors
antenna (fence) will help you.
You may have to become a friend to your neighbor, helping
him bring his fence up to it's best operating condition,
to keep his cattle in his property. (I hope this isn't
a dog yard problem!)
(don't forget to PULL the grass and weeds directly under
the `wire' of the fence. If there is any barbed wire
anywhere near the "HOT" wire it could be arcing to it,
provide no less than two (2) inches between them.
If the length of the fence is not too long you may
have to install a properly insulated strand of wire,
avoid aluminum wire, it oxidizes and the white powder
is a gud insulator, that alone could be the problem,
use stainless or galvanized steel wire sold as electric
fence wire. Use electric fence insulators not bottle
tops and other makeshift insulators.
Ron 73
> My neighbours adjoining field has a fence which to me looks in poor shape.
> The fence is of rope with a fine strand/s of conductor woven in and to make
> joints in the rope it is just knotted, I can hear ticking (as in arcing)
> from these 'joints' I've tried wire bonding across a couple of these
> 'joints' which seems to eliminate the arcing but this does not do anything
> for the QRM.
> Is it possible to reduce or eliminate this QRM ? It also interferes with MW
> and LW broadcast reception btw.
> I have no previous knowledge of these fences and I haven't approached my
> neighbour yet as I'm new here and there is a language barrier.
> I'm using a K2 and the NB sometimes helps a little but doesn't eliminate the
> QRM which sounds like a regular ticking about once per second.
--
73 (= Best Regards) de: Ron [email protected]
100% Slack. since July, 1997 (still free!) SENT D&T are UTC
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