> Not worth the extra $ to take down a tribander that has maybe 4dbd gain on
20mtrs for a huge mono band yagi with a 32' boom and truss supports for the
boom ect for a mere 3.5 db gain
You might be better off spending less money on another tribander and
mounting it at a different height. If it is a half-wave higher or lower
than the existing one, you could see a 10dB or more change in gain depending
on what angles are currently being favored and what your terrain is like for
a few miles around.
Varying takeoff angles is the primary reason the big boys use stacks of
yagis.
73
Tom NI1N
-----Original Message-----
From: towertalk-bounces@contesting.com
[mailto:towertalk-bounces@contesting.com] On Behalf Of k2vi
Sent: Thursday, March 05, 2009 11:25 AM
To: towertalk@contesting.com
Subject: [TowerTalk] dx baster antenna
One more query I have , A 1 s-unit gain is doubling your ratiated power
correct? So an antenna that has a 1 sunit gain is equivalent to going from
100 to 200 watts. Or 750 to 1500 watts. All 1 sunit. It just doesn't seem
linear...Not worth the extra $ to take down a tribander that has maybe 4dbd
gain on 20mtrs for a huge mono band yagi with a 32' boom and truss supports
for the boom ect for a mere 3.5 db gain. Maybe im missing something here.
tony
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