[TowerTalk] [Force 12 Talk] If you have a F12 linear loadedantenna, you could have some trouble

[Dan Hearn]

The linear loading wires on my 4el 20/ 2el 40 were very brittle and broke
when they were bent during initial installation. I had some copperweld with
the same OD so I substituted that. I used the bronze U shaped clamps used
for power wiring for the shorting wires. It has been working FB for 8 years.
73, Dan, N5AR

--Original Message-----
From: towertalk-bounces at contesting.com
[mailto:towertalk-bounces at contesting.com]On Behalf Of Keith Dutson
Sent: Friday, October 03, 2008 4:16 PM
To: K7LXC at aol.com; towertalk at contesting.com; cq-contest at contesting.com;
Force12Talk at qth.com
Subject: Re: [TowerTalk] [Force 12 Talk] If you have a F12 linear
loadedantenna, you could have some trouble

The small U-bolts on both of my C-4XL antennas rusted and operation became
unstable on 40M.  I replaced these with stainless U-bolts and solved the
rust problem.  However, the unstable operation persisted.  I have replaced
the linear elements with the new Delta 40 elements.  The problem is now
permanently fixed.

Keith NM5G

-----Original Message-----
From: force12talk-bounces at qth.com [mailto:force12talk-bounces at qth.com] On
Behalf Of K7LXC at aol.com
Sent: Friday, October 03, 2008 5:30 PM
To: towertalk at contesting.com; cq-contest at contesting.com; Force12Talk at qth.com
Subject: [Force 12 Talk] If you have a F12 linear loaded antenna,you could
have some trouble

Howdy --

    I've had several occasions in the last several  months to fix an
intermittent problem on Force 12 linear loaded antennas. It  turns out that
all of them had rusted U-bolts that had deteriorated and caused
intermittent electrical contact. The U-bolts are the real little ones that
connect the linear loaded wires and the shorting wire.

    You would be well advised to include checking them  during your annual
inspection and probably replacing them. Ultimately they will  all fail.

Cheers,
Steve     K7LXC
TOWER TECH -
Professional tower services for hams

PS - You are doing an annual inspection aren't  you?!?



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