[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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