I have a 30 meter half wave vertical mounted on a dock piling over salt water.
I feed it with an old Dentron "Super Tuner" right at the base. The tuner is
housed in a Rubbermaid storage box. On long haul DX it runs rings around my 30
meter inverted vee and my quarter wave vertical (also mounted over salt water).
I use no radials... but have a sheets of copper in the salt water under each
vertical. I use about 40 square feet of surface area for each vertical.
Interestingly the half wave vertical is MUCH MUCH quieter on receiving than
either of the other antennas. This may be simply due to placement.
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See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather
Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions
and ask for Sherman, W2FLA.
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