[Antennas] Re: take-off angles for short vertical
Roy Koeppe
royanjoy at ncn.net
Fri Sep 8 10:39:52 EDT 2006
Was stated:
"......not enough information. You must tell us what's your antenna
height, and
height above ground. This second parameter is especially important."
Alex 4Z5KS
Alex,
He told us he has radials on the roof. Those radials establish the RF
ground for the antenna, and thus the effective height of the antenna
system. The element is short on all bands except the highest, and my
figure of 30 degrees is accurate enough for this simple antenna.
73, Roy K6XK
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