In a message dated 6/17/2009 5:45:11 A.M. Mountain Daylight Time,
towertalk-request@contesting.com writes:
> FWIW, when I was building my first tower, 14 years ago, I was
planning to go with 70 feet. W3LPL, who is (and has been) at the top
of the class for antenna and propagation expertise, strongly urged me
to go to ~100 feet for a single-tower station, and to put the 40M
beam on top. I did it, and have been glad I did.
> I use this tower to support an 80-meter wire parasitic array (not
quite a 4-square, but a lot simpler to build), and shunt feed it on
160 with good results.
I totally agree. I'd do a little bit more homework and run the HFTA to
see what the arrival/takeoff angles will be.
But aside from that, 100' gives you a sweet spot on 20M and lower
arrival/takeoff angles on 40. A small tribander at 40-50' on a side-mount will
also
be invaluable.
Cheers,
Steve K7LXC
**************Dell Days of Deals! June 15-24 - A New Deal Everyday!
(http://pr.atwola.com/promoclk/100126575x1222865043x1201494942/aol?redir=http:%2F%2F
ad.doubleclick.net%2Fclk%3B215692145%3B38015538%3Bh)
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
|