In Chapter 9 ( (Vertical Antennas) of Low-Band DXing, Section 2.2.4.1 discusses
"Only One Radial." ON4UN cites work by Christman showing that having only one
elevated radial over average ground has very close to the gain of a
quarter-wave vertical using 120 buried radials, but only in the direction of
the single radial. It has a 3-4 dB null behind the radial.
The possibility of having 4 radials and connecting one at a time is mentioned.
I am thinking about getting on 160M with an inverted-L and 4 quarter-wave
radials elevated 10-15 feet. I would use a relay box to allow attaching any one
of the radials at a time or all 4.
If you have any experience with an antenna similar to this, I would appreciate
your advice.
Paul
K5ESW
Raleigh, NC
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UR RST IS ... ... ..9 QSB QSB - hw? BK
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