[TowerTalk] Basic Question about Antenna Height and Treetops
Cqtestk4xs at aol.com
Cqtestk4xs at aol.com
Tue Oct 6 19:58:46 EDT 2015
To a hilltop? I wouldn't worry too much about the tree tops. They'll be
more than compensated for by the hill top.
Do yourself a favor and run the HFTA program that comes with the ARRL
antenna book. The required data input can be obtained for free from K6TU's
site. This program will allow you to adjust the heights of your antennas to
fit your location.
You will be amazed by how much the hilltop affects your signal, especially
on the lower bands. Many times an elevation of only 30 or 40 feet tower
will "appear" to look like a 100 footer.
Get ready to work some real DX!
Bill K4XS/KH7XS
In a message dated 10/6/2015 11:51:36 P.M. Coordinated Universal Tim,
k1jos at att.net writes:
I am moving to a home situated on a hilltop. Nearest same height hilltop
or
higher is about 1 miles away. The home is surrounded by dense (typical New
England Forest) 80' high hardwood and fir trees and my planned small tower
(budget and local codes) gets me only to a 50-60' antenna height. The
trees
will be within 50- 75' from my nearest Yagi ends. How badly can I expect
my signal to be affected by the higher surrounding tree tops? I cannot
build a tower to match their height.
thanks and 73
Jerry K1JOS
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