[Boatanchors] Loading up fences etc.
Duane Fischer, W8DBF
dfischer at usol.com
Wed Feb 8 13:59:55 EST 2006
Don't tell Peter about the Cattle Prod!
----- Original Message -----
From: "Peter Markavage" <manualman at juno.com>
To: <boatanchors at mailman.qth.net>
Sent: Wednesday, February 08, 2006 11:36 AM
Subject: Re: [Boatanchors] Loading up fences etc.
> Don't burn the cows or whatever with the RF. Nothing worse than a testy
> cow or a bull with an RF burn on the nose.
>
> Pete, wa2cwa
>
> On Tue, 7 Feb 2006 18:15:41 -0800 (PST) Glen Zook <gzook at yahoo.com>
> writes:
>> It depends on what type of fence posts are used with a
>> barb wire fence. If wood they will work OK in dry
>> weather. If metal (like many posts today) the wire is
>> effectively grounded and won't work. Remember that
>> the antenna is still going to be very close to the
>> ground and the pattern is going to be more of straight
>> up than a low angle of radiation.
>>
>> Out in west Texas there are still telephone lines run
>> to some ranch houses that use the barb wire fence.
>> These are on wooden posts. One side of the line hooks
>> to one wire and the other side hooks to another wire.
>> At gates they just run an insulated wire that is
>> buried under the roadway to connect the fence wires to
>> continue the circuit.
>>
>> When it rains (not very often) the line gets really
>> noisey or even "shorts out" until things dry out for a
>> few days.
>>
>> Technically these systems shouldn't work. However,
>> like the bumble bee that aeronautical engineers say
>> can't fly, no one ever told the ranchers and those
>> fence / telephone lines sometimes run for miles from
>> the main road.
>>
>> As for antennas made from gutters and down spouts rain
>> doesn't usually have that much of an effect on them
>> when it stops raining. When raining, it depends on
>> the installation.
>>
>> Now ice and snow should have a marked effect until the
>> ice or snow melts.
>>
>> However, when someone has to use stealth antennas
>> using a metal gutter / downspout is sure a lot better
>> than no antenna at all.
>>
>> Glen, K9STH
>>
>>
>> --- "Duane Fischer, W8DBF" <dfischer at usol.com> wrote:
>>
>> What about a barb wire or other wire fence where the
>> actual wire is strung?
>>
>> Additionally, what happens, good or not so good, when
>> it rains or snows on, or in, an antenna made from an
>> evestrough or a rain downspout?
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