[TowerTalk] 105BA VS. 105CA 10 Meter Antenna

Bill Hider, N3RR n3rr@erols.com
Tue, 20 Oct 1998 02:46:31 +0100


The 105CA, as supplied either as a BA or CA is so light weight that the HiGain
clamp, as provided, works just fine.  Don't worry about it.  My upper 105CA
(originally a BA, but installed as a CA)  is at 141 feet and has been through
70+ mph winds no problem.

As far as the models, the HiGain YO models of HiGain monobanders can be found
on their website at: http://www.hy-gain.com/models.htm

The CA element spacing (105 and 155 CAs) and more are found at the bottom of
the following webpage:
http://www.hy-gain.com/links.htm

Bill, N3RR

Jim White, K4OJ wrote:

> "Maybe if/when I put a non-conducting compensating element at the other end
> it will balance the weight okay."
>
> I have found that the convenient fact of plumbing being sized for ID versus
> booms being sized by OD allows you to use common PVC over the boom as a
> near-non wind loading balancing aide.
>
> By slipping a length over the boom near the light end you can slide it til
> you get your mechanical balance and at the point put a sheet metal screw
> through the PVC into the boom - voila.......and no electrical variations
> either!
>
> Oh yeah, its cheap, too!
>
> I am developing some 5 element ten meter beam designs on YO now, where are
> you all getting your 105CA dimensions from?
>
> 73,
>
> Jim, K4OJ
> k4oj@ij.net
>
> TWO WEEKS until Sweepstakes CW, make sure you work me so you will not miss
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>
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>
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