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Old September 28th 09, 08:44 PM posted to rec.radio.amateur.antenna
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Default Open wire feedline

Ron Walters wrote:
#3 is the easiest but I am worried about open wire feed-line coiled,
thoughts please!


Adjacent coils of parallel feedline should never be located
very close to each other. The minimum spacing should be a
few times the spacing between the wires.

What I do is use a dacron messenger line. For instance, if
a knot is tied in the dacron messenger line every two feet
and at each knot, the length of the parallel line is four
feet, a transmission spiral will result where 100 feet of
ladder-line can be spiraled into 50 linear feet of messenger
line. The ladder-line can be attached at the knots using
black nylon tie wraps. Hope this is understandable and helps.
--
73, Cecil, IEEE, OOTC, http://www.w5dxp.com
 
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