[Antennas] Antenna support weight
NPAlex at aol.com
NPAlex at aol.com
Thu Feb 15 07:07:37 EST 2007
Two comments on the reply below - first a weight heavy enough to maintain
tension on a dipole is indeed potentially dangerous IF suspended very high above
one's head. But if extended so that it is just a couple of feet above the
ground it presents little danger. Second comment is regarding the use of Clorox
or any plastic container. These materials are very UV sensitive and can
degrade rapidly when exposed to sun light.
Use of water and a temporary container to determine the necessary weight is
simple and expedient, however after that determination, a more permanent
anchor such as cement in a bucket with a eyebolt imbedded does the job.
Your choice of antenna support rope should not be nylon, (stretch and UV
degradation) but use dacron/polyester for low stretch and a black dacron out
jacket for abrasion and UV protection. It could be combined with a metallic cable,
but the polyester ropes are very strong (3/16" diameter recommended).
Norm W4QN
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Subject: Re: [Antennas] dipole support: steel cable???
A GREAT APPROACH, I AGREE.
RE: WEIGHTS ON THE END OF THE ROPE MAYBE AS FOLLOWS:
HOWEVER, IF YOU DON'T WANT TO CREAT AN INJURY OR KILL
SOMEBODY, PERHAPS ONES SELF,
USE NOTHING HEAVIER THAN A USED/EMPTY CLOROX BOTTLE OR EQUVELANT
FILLED WITH WATER, TO THE
COUNTER WEIGHT NECESSARY TO DO THE JOB.
HOW MUCH WATER SHOULD ONE USE IT IS LIKE FEEDING MARTINIS
TO A YOUNG LADY...TOO MUCH
OR TOO LITTLE DOES NOT DO THE JOB INTENDED!!!!
CONCRETE OR STEEL COUNTERWEIGHTS WILL KILL OR SEVERE
INJURIES, BELIEVE ME.
LEE, 7J1AAP
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