A ground mounted 1/4wave vertical with the highly conductive Gumbo
soil of North Texas really helps the far field pattern.
Peter
W5PS
______________________________ Reply Separator _________________________________
Subject: TopBand: ground losses
Author: Peter Chadwick <Peter.Chadwick@gpsemi.com> at internet
To: <topband@contesting.com>
Date: 8/14/97 5:30 PM
Following on from Jim's point, how far out from the base of the vertical
do you need to go with a method of reducing ground losses? Intuition
suggests there would be advantages of getting out into the far field,
probably a half wavelength or so. However, the USAF study on antennas for
airborne SINGCARS suggested that a vertical over an infinite resistance
ground gave the best low angle radiation. So maybe a vertical dipole in
Arizona?
73 de Peter G3RZP
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