On Thu, 3 Dec 1998 10:20:03 EST, K7LXC@aol.com wrote:
>
>In a message dated 98-12-02 22:08:30 EST, kg0us@swbell.net writes:
>
>> I am considering the purchase of
>> a KLM KT-34A tri-band beam and putting it up on the mast instead of the
>> R7. This is KLM's smaller tri-bander. It weighs 45 pounds and has a
>> 6ft squared windload. The beam is 27 pounds heavier and has 4ft squared
>> more windload than the R7. Will the addition of the KLM tri-bander
>> along with the above mentioned smaller beams be too much and unsafe to
>> use on the existing 30 foot telescoping mast?
>
> Maybe. Probably. Without more details about your mast, it would be hard
>to say. If it's one of those pushup masts from Radio Shack, I'd say no.
>They're heavy but not very strong. They're designed for TV antennas, not HF
>yagis.
>
>> I live in Jackson County,
>> Missouri were the wind speed can exceed a minimum of 70 MPH.
>
> Jackson County is a 75 MPH windspeed zone.
>
> If you really want to pursue this, I'd consider the Force 12 C3 instead
>of the KT34A. It's smaller, lighter and probably works better. More details in
>our tribander comparison report (www.championradio.com).
You're really a pushover today, Steve. This would have gotten the LXC
wouff hongg out in earlier times... :)
Given that it's a push-up mast, I'd say a C3SS. Unless it's one of
those military masts, it can't take the wind *or* what the rotator
will do to it. And it will need to have the top and every section
joint guyed (9 total minimum) plus something to defeat rotation of the
mast at the top.
Beyond that, it's time to think tower of some kind.
73, y'all -- Guy
>
>Cheers, Steve K7LXC
>Champion Radio Products
Guy L. Olinger
k2av@qsl.net
Apex, NC, USA
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