John,
RGR on Linear loading is not the BEST electrical ( RF) Design.... the
Tornado loading coals available from JK would be the cat's MEOW but a 48
apiece X 8 and then the new extra aluminum need to strengthen the element
... I'll think I am leaning on using the 9 Ga. copper weld.
This antenna is going up on a 74 ft tower I put up two years ago with two Home
Brew HB 6 element OWA 10 meter stack 75/40 but it's now going to be a
12/17/30 meter tower wit the two element 40 ( I'll point it S S/E for the
Caribbean SA) and use my other two element forty on it's own tower @ 108
pointed on EU JA ZL VK
Wayne W3EA
________________________________
From: TowerTalk <towertalk-bounces@contesting.com> on behalf of john@kk9a.com
<john@kk9a.com>
Sent: Monday, October 23, 2017 10:16 PM
To: towertalk@contesting.com
Subject: Re: [TowerTalk] F-12 Linear Loading Wire
Years ago I had a homebrew 80m dipole with stainless steel wire rope element
support/loading wires. There were never any mechanical issues however
stainless is a poor conductor compared to aluminum. I am not sure what
effect this had, also linear loading is probably not the best method of
element shortening.
John KK9A
To: "towertalk@contesting.com" <towertalk@contesting.com>
Subject: [TowerTalk] F-12 Linear Loading Wire
From: Wayne Kline <w3ea@hotmail.com>
Date: Mon, 23 Oct 2017 23:16:32 +0000
Hello TT'ers.
I am In the process of rehabbing a Force 12 Delta 240/230 beam
antenna.
In the past I have rebuilt/repaired the original F-12 wires with Aluma-weld
12GA.
If my memory serves me there was a thread in the past because of the
flexing
and hardening resulting in failure... another type of wire was substituted
?
Coper Weld ? Galvanized fence Wire ?
Wayne W3EA
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