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Old January 21st 06, 10:17 PM posted to rec.radio.amateur.antenna
Cecil Moore
 
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Default Vertical on a tower

I'm putting a vertical back up for transmitting and will
probably receive on my horizontal dipole. The vertical
will be mounted on the top of a 30 foot Rohn 25G tower
with the base grounded in cement. The question arose in
my mind whether to connet the drooping elevated radials
to the tower or not. To my surprise, EZNEC says that RF
current flows in the tower whether the radials are
connected to the tower or not. I'm using mininec ground
for the simulation. The radial fields are obviously
inductively coupling to the tower. Does anyone else
worry about such things?
--
73, Cecil http://www.qsl.net/w5dxp
 
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