On Sat, 23 Jan 1999, Bill Fisher, W4AN wrote:
>
> I have a 8/8 stack to Europe for 10 meters on 48' booms. I'm also putting
> up 7/7 for 15 meters on 48' booms. I'm wondering what type of boom to leg
> arrangement to use. I'm leary of tightening a u-bolt too tight around the
> tower leg. My thought now is to use 4 U-bolts on the tower leg for each
> antenna. Any other advice?
I'd be more than leary...... the towers I have are all heavier than Rohn
45 and I wouldn't consider mounting anything on just one leg - that just
can't help but weaken the leg and contribute to an even worse scenario. A
couple of angle or channel brackets going along the face of the tower,
perhaps 2 feet apart will distribute the forces in a much better fashion.
A short pipe on this and mount the beam to the pipe in the conventional
fashion. Go a step further, put bearings (pillowblocks) on the pipe and a
sprocket and you have a ~120 deg sidemount. Put a barn door on it and it
becomes a ~300 deg sidemount, which is what I did last summer....6/6/6/6
48' 15m OWA designs.
73 Don VE6JY
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