The DXZone.com Amateur Radio Internet Guide
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ICOM AH-705 Antenna Tuner
Posted:
https://www.dxzone.com/icom-ah-705-antenna-tuner
HF / 50 MHz Automatic Antenna Tuner
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Hairpin antenna for 40m band
Posted:
https://www.dxzone.com/dx34305/hairp...-40m-band.html
Antennas/40M
A modified Hairpin antenna for a wider bandwidth an mounted on a grounded
metalic mast
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Coaxial Collinear Antenna for 70 CM Band
Posted:
https://www.dxzone.com/dx34312/coaxi...0-cm-band.html
Antennas/Collinear
This coaxial collinear antenna was built to test for my own consumption
whether or not this antenna method actually works. the guiding principle is
that we have multiple 1/4 wave elements fed in series , the radiation from
each adds in phase to produce
a large vertically polarised omni-directional antenna with substantial gain