Easy......

At One Wavelength the "spray" on the antenna opens fully........as you raise
the antenna the angle of take off lowers......(getting you to your DX
station with more apparent power).

-In W2PV's bible...the take off angle of a 3 element beam at 1 wl is 14
degrees, raise it to 1.5 WL and now the take off is 9 degrees...go to 2 WL
and its 7 degrees.

-Now take into consideration the useable angle of propagation, as the angle
rises you will begin to use the higher lobes of your antenna.

-There are times that because of the very high propagation angle my vertical
is stronger than my 5 ele @ 150' and my 4 element at 106' and my multibander
at 68'......

Bill
http://www.kc4pe.com/amateurshack.htm



"W5GT" wrote in message
...
I'm putting up a tower in the next week or so. It will have a TA33.

I've been putting up antennas for years, but never with a tower. I know
the
old adage that you should put up as much aluminum as you can afford as
high
as you can put it. However, will there be a noticeable difference between
34' and 44'? I work DX and with the declining sunspots, I suspect that on
some weak signals it might.

Thanks

Dave - W5GT