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March 18th 21, 08:19 AM
posted to rec.radio.amateur.dx,rec.radio.amateur.equipment,rec.radio.info
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[DXZone] ICOM AH-705 Antenna Tuner
The DXZone.com Amateur Radio Internet Guide /////////////////////////////////////////// ICOM AH-705 Antenna Tuner Posted: https://www.dxzone.com/icom-ah-705-antenna-tuner HF / 50 MHz Automatic Antenna Tuner /////////////////////////////////////////// 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 /////////////////////////////////////////// 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 |
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