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[TowerTalk] 40 Meter Beams

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Subject: [TowerTalk] 40 Meter Beams
From: Bill.Simpson@MCI.COM (Bill Simpson)
Date: Tue, 25 Nov 1997 14:18 -0600 (CST)
Mine lasted about four days at 120' and the insulators on the Linear loading
moved all the way down to the hose clamps. The end of the road for that
beam was when the an element center insulator broke in half and the element
fell from 120'. Looked like a pretzel. I finally just took it down and gave
up on that one. OTOH I have a KLM 6el20M that has been fine. You are able
to pull yours down  but it is a different ball game with a beam this big
at altitude. There is just no comparison.


Bill N5CMI


Jeff Singer said:

Hi Steve,

My KLM 40M4 has been up a little more than a year. Never had a problem,
but - it's true - I haven't seen any really big winds yet. Of course, when
the wind alarm goes off at 25 mph I motor-crank the whole affair down

The antenna only weighs around 85 pounds. It seems MUCH heavier, though. And
it DOES cover the entire band.

73 de Jeff K2KV

-----Original Message-----

>     How long has yours been up? Suffolk County is an 85 MPH wind speed
>plus you're within 100 miles of hurricane oceanline so if you haven't seen
>BIG winds yet - you will.
>     Anyone who's considering putting up a big 40M antenna is looking at
>cost, big rotator and a big rigging challenge (you're talking 200-300
>pounds). Here's an option. How about a 2-stack of 402CD's? Just about the
>same performance, a nice fat lobe on the horizon, less hassle and cost (Ham
>IV's instead of a prop pitch for one).
>73,  Steve  K7LXC

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