Did he just state db? not dbd (gain over a dipole) or dbi (gain over the
theoretical isotropic radiator.) ? With that bit of info you don't knowexactly
where you stand. 73, David, AA9G
From: Bill Straw via TowerTalk <towertalk@contesting.com>
To: "towertalk@contesting.com" <towertalk@contesting.com>
Sent: Tuesday, August 8, 2017 1:30 PM
Subject: [TowerTalk] What does -db antenna gain mean?
The sunspots are gone and I need a better 160M transmit antenna. My previous
Cushcraft MA160V
over 50 X 50' radials worked OK for my expectations, but it had a very narrow
bandwidth and the
top loading coil would overheat with more than 500W and shift the resonant
frequency so that
the 2K-FA would go to standby. This antenna is for a new QTH.
According to a Cebik article, a 160M inverted L over 4 x 50' radials has a -2.2
db gain. I think
a -3 db gain would mean half the power would go into the ground? But if I were
running 1500W I
would still be better off from a transmitting standpoint compared to the old
antenna?
Thanks, Bill KO7SS
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