Message 22270 in TECH.WW
From: G8MNY
Date: Tue, 12 May 26 06:50:00 Z
Newsgroups: TECH.WW
Subject: Growing Loft to Roof Aerials
Message-ID: <59500_GB7CIP>
Path: GB7RJJ|GB7YEW|GB7CIP
R:260512/0651Z 13154@GB7RJJ.#79.GBR.EURO LinBPQ6.0.25
R:260512/0651Z 18252@GB7YEW.#79.GBR.EURO LinBPQ6.0.24
R:260512/0650Z @:GB7CIP.#32.GBR.EURO #:59500 [Caterham Surrey GBR]
From: G8MNY@GB7CIP.#32.GBR.EURO
To : TECH@WW
By G8MNY (New Nov 09)
(8 Bit ASCII graphics use code page 437 or 850, Terminal Font)
When I started AR in 1977 as a VHF & above ham, I used a loft aerial system
that grew & grew.
n
Loft floor Rot
n
There was quite a bit RF loss through the roof so I decided to grow the pole &
pushed it out through the roof.
Roof Pole
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
To my surprise I did not have any complaints from the neighbours or planners
with the outside aerial! (would not be true today!)
Later I lifted it as high as I dare (moving the funnel down), but I noticed
some swaying in windy Wx. So I then designed & added some guys on a top
bearing.
These plastic covered steel guy wires are anchored on the 4 corners of the
house with a 7mm dia plastic covered flexible thin ally low pressure tube. The
wire is threaded through the tube and the tube bent around the masonry to "grab
it", this stops any wire chaffing and the wire length can be adjusted a few
inches & the ends loosely twisted together to finish off.
_
//////////////////////// I ended up with a 24el on
/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/ and an 8el 2m homebrew dual
Why don't U send an interesting bul?
73 De John, G8MNY @ GB7CIP
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