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Re: Topband: Radial wire

To: Herbert Schoenbohm <herbert.schoenbohm@gmail.com>
Subject: Re: Topband: Radial wire
From: Kenneth Grimm <grimm@sbc.edu>
Date: Wed, 5 Sep 2018 14:21:29 -0400
List-post: <mailto:topband@contesting.com>
If you have a Tractor Supply store near you, the price for 1/4 mile of 17
ga. galvanized electric fence wire is $14.99.  You can get 1/2 mile roll
for $29.99.  Just how long it will last will vary depending on your soil.
However, at that price it is worth a try.

73,
Ken - K4XL

On Wed, Sep 5, 2018 at 1:10 PM, Herbert Schoenbohm <
herbert.schoenbohm@gmail.com> wrote:

> 1/4 mile for $30 is reasonable and would work well for radials.
> https://www.ebay.com/itm/Acorn-International-EFW1714-1-
> 4-Mile-17-Gauge-Galvanized-Fence-Wire/152465194663?epid=4017419194&hash=
> item237fa23ea7:g:xOMAAOSw4A5YwFca
>
> Herb, KV4FZ
>
> On Wed, Sep 5, 2018 at 2:00 PM Herbert Schoenbohm <
> herbert.schoenbohm@gmail.com> wrote:
>
> > For a cheap solution for radials is to use buried galvanized barbed wire.
> > It is available for pennies a foot.  A preferred way of putting it in is
> to
> > use a is a  Ditch Witch with a vibrating plow attachment that allows the
> > wire to buried with limited handling.  Depending on the soil consistency
> it
> > will be long-lasting.   My sons with metal detectors have unearthed
> barbed
> > wire that was of a style used 50 years ago by local farmers. In Puerto
> Rico
> > AM stations have lost entire copper fields by poachers who sent it off to
> > Rep Dom by containers to be sent by the pound. They have used the
> > galvanized fence wire successfully.
> >
> > Herb, KV4FZ
> >
> > On Wed, Sep 5, 2018 at 1:13 PM JC <n4is@n4is.com> wrote:
> >
> >> Hi Guys
> >>
> >> Stay away from aluminum, the aluminum oxide dielectric is a terrible
> >> complication around 2 MHz, it become a capacitor and a diode and will
> >> generate a lot of noise in presence RF currents.
> >>
> >> There is no way to avoid the diodes at the connection with different
> >> materials, like at the ground plate. When these electrical junctions are
> >> very well they will work well for few months, than the noise will start
> >> around Sunset when the RF field from AM BC are more intense, the RF
> will be
> >> there, even if you are far from BC station, the propagation peak is near
> >> Sunset.
> >>
> >> Galvanic corrosion and diode formation is inevitable. Same problem is
> >> very common on rotor, mast and tower contacts originating birds on 1810,
> >> 1820 and every 10 KHz, most of this signals are originate on your own
> >> tower. Just grounding the with a solid contact with the tower can kill a
> >> lot of noise.
> >>
> >> I've seen several situation of aluminum joints becoming a strong noise
> >> source. The same joints are not a problem on 80 or 40m, the issue is
> just
> >> around 2 MHz
> >>
> >> Save yourself a lot of problems, aluminum an 160m antennas are not a
> good
> >> combination.
> >>
> >> 73's
> >> JC
> >> N4IS
> >>
> >>
> >> _________________
> >> Topband Reflector Archives - http://www.contesting.com/_topband
> >>
> >
> _________________
> Topband Reflector Archives - http://www.contesting.com/_topband
>



-- 
Ken - K4XL
BoatAnchor Manual Archive
BAMA - http://bama.edebris.com
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