Short helically-wound monopole antennas.

Enter helical height, diameter and frequency - calculate number of
turns and wire gauge for 1/4-wave resonance. Plus efficiency and
other characteristics.

Download program HELIX_2 from website below. 45 kilo-bytes.
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Regards from Reg, G4FGQ
For Free Radio Design Software go to
http://www.btinternet.com/~g4fgq.regp
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