Topband: Another DXpedition 160 Vertical Idea

Rick Karlquist richard at karlquist.com
Thu Jan 27 20:06:22 EST 2005


Larry Higgins said:
> However, it is also true that vertical dipoles do induce current in the
> ground, and the energy transferred to ground comes from the transmitter.

I've seen this warning many times, but when I actually compared a half
wave vertical with no radials to a quarter wave vertical with
32 radials, the difference was too close to measure (ie less
than 3 dB).  This comparison was done on 20 meters, so we can't
be certain that the results would hold on 160 meters.  Still, it
does suggest that the losses aren't all that high.

Rick N6RK



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