The argument for the MA550 is completely aesthetic, in my mind.
The real question is whether, if motorized, one could convince
zoning to rate safety based on a retracted tower. It would be
easy to have windspeed monitored, and store the antenna nested,
when not in use. I would anticipate a topmast, placing a 3 el
steppIR @ 65'. Height would be 'tuned' appropriate to the band
in use. So nesting storage could be a normal event.
You'd still need a PE evaluation to get the permit, but it would
be a significantly more robust result.
N2EA/Jim
From: <john@iguanavilla.com>
I think your money would be better spent purchasing a stronger tower.
> Steve commented.....MA towers are too light for the job....
Before totally giving up on the MA tubular towers, I wonder if anyone h
appens
to have gotten an MA550 qualified for 90 mph with the stipulation that the
top of the bottom section would be anchored to the house. I know it is not
an
ideal situation but might be something I would be willing to try if it
would
get me over the hump.
That's an engineering question. Time to get a PE or otherwise
knowledgeable engineer involved.
Cheers,
Steve K7LXC
TOWER TECH -
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
|