Really? They are selling that? I can find tons of this, let me know if
someone interested hi hi hi
-----Mensaje original-----
De: Topband [mailto:topband-bounces@contesting.com] En nombre de Herbert
Schoenbohm
Enviado el: miércoles, 15 de abril de 2015 03:07 p.m.
Para: topband@contesting.com
Asunto: Re: Topband: radial wire size
I just saw on eBay a 3' piece of barbed wire dated 1878 for sale for
$9.78 which comes up to $3.26 per foot! I guess this stuff gets more valuable
with age like some good Uruguayan wine.?
http://www.ebay.com/itm/Vintage-Antique-3-foot-piece-of-Barbed-Wire-Barb-Wire-Barbwire-Bobbed-Old-/121567131845?pt=LH_DefaultDomain_0&hash=item1c4df738c5
Herb, KV4FZ
On 4/15/2015 1:47 PM, Jorge Diez - CX6VM wrote:
> Hi Herb
>
> Local price:
>
> #17 $16,65 per 100 mts (328ft)
> #14 $30,32 per 100 mts (328ft)
>
> Not problem with thief actually at the farm, but will be very bad if
> after 2 years the radials "disappear" because of the corrosion
>
> 73,
> Jorge
>
>
> -----Mensaje original-----
> De: Topband [mailto:topband-bounces@contesting.com] En nombre de
> Herbert Schoenbohm Enviado el: mi rcoles, 15 de abril de 2015 01:06
> p.m.
> Para: topband@contesting.com
> Asunto: Re: Topband: radial wire size
>
> From Home Depot
>
>
>
> $64.98 / roll
> FARMGARD 1320 ft. 12-1/2 Gauge 2-Point Class I Barbed Wire
> <http://www.homedepot.com/p/FARMGARD-1320-ft-12-1-2-Gauge-2-Point-Clas
> s-I-Ba
> rbed-Wire-317821A/202025609>
>
>
> Model # 317821A
>
>
>
> On 4/15/2015 11:53 AM, Herbert Schoenbohm wrote:
>> In AM broadcast installations the use of buried copper wire (bare)
>> smaller than #10 is considered unacceptable. Here in the Caribbean
>> cooper thieves have found radios stations a good source for black
>> market copper wire and some stations replace thier systems with
>> barbed wire which is harder to steal but very difficult to install.
>> Depending upon the soil the ability to last more than a few years he
>> use of such a solution is very questionable.
>>
>>
>> Herb Schoenbohm, KV4FZ
>>
>> On 4/15/2015 11:43 AM, donovanf@starpower.net wrote:
>>> Hi Jorge,
>>>
>>>
>>> Bill is almost correct, in most soils mechanical durability is the
>>> only consideration for long term durability of copper wire, but out
>>> of sight out of mind can be a big problem for radial systems in at
>>> least two cases.
>>>
>>>
>>> Galvanic corrosion will damage a buried radial system i f small (or
>>> large!)
>>> electrical currents flow from the shield of your coaxial cable into
>>> your radial system. Of course, small diameter wire will fail more
>>> quickly than heavier wire. This is not a trivial consideration
>>> because in many installations the buried radial system has
>>> significantly lower ground resistance than any other ground in your
>>> home or in your station. You can determine if this is a problem in
>>> your installation by using a milliammeter (or a common VOM) to check
>>> for shield current.
>>>
>>>
>>> Corrosive soils may damage a buried radial system. Fortunately most
>>> soils are not corrosive for copper but there are important
>>> exceptions, some examples are:
>>> - soils with large quantities of organic matter,
>>> - poorly drained soils such as wetlands,
>>> - soils with a history of heavy agricultural use with farm animals
>>> or fertilizers
>>> - soils containing materials such as cinders or cinder blocks.
>>>
>>>
>>> 73
>>> Frank
>>> W3LPL
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>> ----- Original Message -----
>>>
>>> From: "Bill Wichers" <billw@waveform.net>
>>> To: "Jorge Diez - CX6VM" <cx6vm.jorge@gmail.com>, "topband"
>>> <topband@contesting.com>
>>> Sent: Wednesday, April 15, 2015 2:27:01 PM
>>> Subject: Re: Topband: radial wire size
>>>
>>> The only real difference when using reasonable-gauge sizes is in
>>> physical durability. Electrically it makes little difference since
>>> you effectively have a large number of radials in parallel so each
>>> one carries only a relatively small percentage of the overall
>>> current in the system.
>>>
>>> I use 18 gauge bare solid copper on my radials. I use that size
>>> since I consider it a practical minimum in terms of physical
>>> durability and I can get it for around $50/thousand feet from my
>>> supplier (although they have a 5,000 foot minimum order). I've had
>>> some 60+ radials in place for about 4-5 years without any problems.
>>> Once the copper turns a dull-brown color after the first season it's
>>> almost impossible to see on the ground.
>>>
>>> A lot of people use 14 gauge since that's a commonly available size
>>> for building wire in the US. It's easy to get through "regular"
>>> (hardware store) channels and it's strong. There isn't really any
>>> electrical advantage to the heavier wire -- you won't notice any
>>> difference in performance.
>>>
>>> I think you'll be fine with the #17 wire you have access to. Save
>>> the money on the smaller radial wire and spend it somewhere else
>>> where it will make more difference in your overall antenna system.
>>>
>>> -Bill
>>>
>>>> Hello
>>>>
>>>>
>>>>
>>>> Thinking in a 4 SQ, buried radials, 60 or more on each vertical
>>>>
>>>>
>>>>
>>>> What is the difference in performance between installing radial
>>>> wire size
>>>> #14 (2.08 mm2) or #17 (1.04 mm2) ?
>>>>
>>>>
>>>>
>>>> #14 is the size that DXE sell, so I think is a good size for
>>>> radials. But what about #17?
>>>>
>>>>
>>>>
>>>> In $$$ is the half J, so want to know what I am loosing in
>>>> performance, if any
>>>>
>>>>
>>>>
>>>> Thanks in advance
>>>>
>>>>
>>>>
>>>> 73,
>>>>
>>>> Jorge
>>>>
>>>> CX6VM/CW5W
>>>>
>>>>
>>>>
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