1.8MHz to 144MHz.....lower you go, the worse it is. 6m is moderately worse
than 10m or 15m, but that's only because I have a 6el yagi on that band,.
On 160m the pulses are on average 10/s9.....on 20m, on average s7......on 6m
(with the beam) about s3-4....on 2m with a 17el yagi, s1 or 2
I do use all HF bands and am a very active contester; that's why this is so
gosh-darn frustrating. If I was a casual DXer or ragchewer I might not be
quite so bothered.
I don't own an aircraft VHF (AM) receiver (nor is anything available
anywhere in Canada unless I want to spend more than $200 on amazon.ca for a
PL-660SLV), but did take a regular Grundig SW band handheld radio over there
last night, but without an attenuator, beam or S-meter, was unable to narrow
down where the pulses might be coming from when listening around 9.85MHz.
It's like the whole fence is radiating when I check with the handheld, but
when I use the various directional antennas I have the pulses are DEFINITELY
stronger up closer to his paddock/house, than they are directly behind my
house. I guess that's probably because there is almost no voltage in the
fence close to me.
Mike VE9AA
Mike, Coreen & Corey
Keswick Ridge, NB
-----Original Message-----
From: J. Gordon Beattie, Jr. [mailto:w2ttt@att.net]
Sent: July 30, 2015 1:52 PM
To: 'dalej'; 'Mike Smith VE9AA'
Cc: rfi@contesting.com
Subject: RE: [Bulk] Re: [RFI] Electric Fence pulsing (will get worse soon !)
Mike,
What frequency bands are being impacted by this fence?
73,
Gordon Beattie, W2TTT
201.314.6964
-----Original Message-----
From: RFI [mailto:rfi-bounces@contesting.com] On Behalf Of dalej
Sent: Thursday, July 30, 2015 12:14 PM
To: Mike Smith VE9AA <ve9aa@nbnet.nb.ca>
Cc: rfi@contesting.com
Subject: [Bulk] Re: [RFI] Electric Fence pulsing (will get worse soon !)
Maybe the higher power controller will burn off the grass. Can only hope.
Dale, k9vuj
On 30, Jul 2015, at 9:02, Mike Smith VE9AA <ve9aa@nbnet.nb.ca> wrote:
So, small update. Seems like when it rains or is extremely foggu/humid
outside the noise goes down.sometimes way down.(mostly overnight)..(solar
charged battery dying?)
I am unable to convince the neighbour he should trim weeds, even though I
told him I never noticed anything until mid-to-late May (when the grass and
weeds really took off here in NB (Ve9)
I checked a bunch of connections and even put the back of my hand on the
fence no farther than 20' from the controller. At 800' from the controller,
I can rest my hand right on it (and I am no Arnold Swatrzenegger)
I dropped him off a paper manual of his controller last w/e and highlighted
(with yellow highlighter) in no less than 8 or 9 places in the book where it
essentially says "weeds are bad..get rid of the weeds"
Hi solution?
He's going to buy a bigger fence controller that runs off 120VAC, instead of
his small to medium sized solar one.
I can't get through to him, even though he says " I didn't change anything
since last year except add the piece of fence near your property" (which is
the part engulfed in weeds..down by his paddock it's 99% open dry ground)
The only saving grace in all this fiasco, is that the noise seems to be
somewhat less since last Saturday I spent ~2 hours going around the 1000' of
fence and trimmed a couple dozen tree branches that were touching the fence,
along with dozens of raspberry bushes and weeds. I suppose if I wanted to
really wanted to get motivated I could trim 1000' of weeds with grass
shears...my weed wacker has recently died.
He's got some farm supply guy who he knows coming over with hopefully a
better fence meter (I couldn't get my Neon bulb one even to register right
at the controller) and hopefully some better experience and advice.
I don't think he believes a thing I am saying.
Exasperated in NB,
Mike VE9AA
Mike, Coreen & Corey
Keswick Ridge, NB
From: Mike Smith VE9AA [mailto:ve9aa@nbnet.nb.ca]
Sent: July 25, 2015 5:10 PM
To: 'rfi@contesting.com'
Subject: Re: [RFI] Electric Fence pulsing (will get worse soon !)
Today I walked the fence (well, most of it..the internal divide in 1 spot
was not accessible as there were 4 big Clydesdales there and nobody home at
the house)
I trimmed 9 or 10 tree branches hard up against the fence, 30 or 40 good
sized raspberries bushes, 100+ various types of weeds, but had to leave the
grass. I was only 1 guy with grass shears, tennis elbow and only so much
energy.
All this seemed to make a SMALL difference in the fence's QRM level, though
it does vary from day to day somewhat, so only over time will I know if I
have made any real change with my hour and a half of trimming.
The far end of this rectangular fence is nearly due north of my property
line. When I beam due North, NW or NE, no change in signal level. When I
beam ENE/E, the signal comes up indicating to me the most problematic area
is in the original small paddock in that direction (about East/NE from me).
I can put the back of my hand against the fence near my property and not get
knocked on my butt, so there's very little voltage close to me.
I did come upon a place at the original paddock (ENE) where there was gate
hooks that were merely looped onto some wire rope and one of the hooks was
audibly sparking. I mean, my hearing isn't the best, but I could hear it
from 5' away.
I played with the placement and stopped the arcing, but when I got back to
the shack, there was still noise. He has nice new hardware everywhere, but
is missing the 2 parts of the hooks that would attach to the stationary part
of a gate.
Owner not around, so I really didn't touch the fence nor anything else on
his property. Just trimmed weeds/branches on the outside perimeter.
I have noticed on a couple early mornings when it's been very
rainy/foggy/drizzly, the arcing "signal" is quite weak.(one day I could've
sworn it was off) Whether that means gobs of current are being dumped to
ground all night and the battery is dead, -OR- some of these places that
have less than a stellar connections (galvanized fence wire wrapped around
conductive rope and no u-bolts) are being bridged partially by water, I
don't know yet.
That's all for now.
Mike VE9AA
Mike, Coreen & Corey
Keswick Ridge, NB
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