Ralph:
I don't have direct experience with THAT particular 4-dipole antenna array but
with others like it. One caution, or at least something you should be aware of:
the specs say that it has a very narrow vertical beamwidth of 18 degrees.
http://www.telewave.com/pdf/TWDS-7045.pdf . That means if you mount this array
very high above ground, it will not provide a lot of RF at ground level below
the site and out to a few miles. Compare its vertical pattern with that of
your existing antenna to see if you'll lose much coverage near the site itself.
I recently designed an antenna installation for a local hospital. I
deliberately chose a lower-gain vertical omni over a high-gain model so I could
illuminate the ground around the hospital with RF, rather than have it bang
into the mountains off in the distance.
73 de
Gene Smar AD3F
On 08/22/12, Ralph Matheny K8RYU<mathenyr@marietta.edu> wrote:
I'm about to purchase a 4-pole antenna for our local club
repeater. Does anyone have any direct experience with
the Telewave ANT150D-6-9 antenna?
I'm looking for comments regarding construction, weather-
proofing and overall physical construction. We are growing
weary of replacing antennas every 2 years or less.
73
Ralph K8RYU
Marietta Amateur Radio Club (W8HH)
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