nuckollsr(at)cox.net Guest
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Posted: Wed Jan 11, 2006 10:23 am Post subject: ELT Antenna radials |
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At 06:49 AM 1/11/2006 -0800, you wrote:
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Bob & list,
Thank You all for the many helpful suggestions. I feel sorta silly not to
have thought of some of them myself, so thanks for your patience &
willingness to point out what may seem obvious to you.
As for installing the radials, one to the front will be easy & off to one
side will be short (maybe 2.5 inches) but there is no room to the other side
or back, at least if I want to stay in the same 'plane' as the base of the
antenna, which I believe is important. Is there a way to incorporate the
'silver spray' portion of the polyfiber finishing system into the antenna?
The 'silver spray' is basically a thin sheet of aluminum used to protect the
fabric from UV rays.
Thanks again for all the help. This list is a GREAT resource.
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The full length radial to the front is 99% of your radial
effectiveness . . . short ones like 2.5" is of no practical value
at 121.5 Mhz. Conductive sprays are useful for attenuating
outside interference on non-conductive cases . . . it is
extremely difficult to make a long-lived, low-resistance
connection to conductive film on a resilient substrate. Been
there, tried that, didn't work.
Run the single, full length, radial forward. Make it as WIDE
as practical . . . perhaps wrap it down each side of the
structure.
Bob . . .
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