Hi Bill,
Each of the verticals in the W5ZN eight-circle array is designed to be guyed
with four guy wires. The upper 25 feet of the guys form a top hat that is an
intergal part of the antenna. The vertical and the four top hat wires are all
25 feet long.
http://www.w5zn.org/files/Design%20Construction%20&%20Evaluation%20of%20the%208%20Circle%20Vertical%20Array%20for%20Low%20Band%20Receiving%20Rev%203%2011-16-09.pdf
73
Frank
W3LPL
---- Original message ----
>Date: Wed, 28 Jul 2010 11:57:43 -0400
>From: "Mr Magoo" <magoo@isp.ca>
>Subject: Topband: PORTABLE RX ANTENNAS
>To: <topband@contesting.com>
>
>Regarding W5ZN's post about making an RX antenna "portable" using a mast
>supported in a bucket of cement: I tried that trick a few years ago when I
>used to string Beverages out across my neighbour's field. I poured cement
>in 20 gallon paint pails with a 10 ft mast....pretty heavy to move but I got
>them in place with the aid of my tractor. First strong wind storm took the
>whole lot of them down and I had to guy each one to keep it in place. It
>was a lot easier to drive in a T post and place a length of plastic pipe
>over top.
>
>I think that any antenna installed this way in cement would have to be very
>light (fiberglass poles) and not too long (less than 20 ft) to prevent
>tipping in strong winds.
>
>Bill VE3NH
>
>_______________________________________________
>UR RST IS ... ... ..9 QSB QSB - hw? BK
_______________________________________________
UR RST IS ... ... ..9 QSB QSB - hw? BK
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