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August 22nd 16, 07:37 PM
posted to rec.radio.amateur.antenna
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Loop Antenna Polarization
On Sun, 21 Aug 2016, Ralph Mowery wrote:
In article ple.org, says... But, there is the case of loops with the area placed in parallel with the earth. Those are horizontally polarized. I'm suddenly blank about what they were called, but fifty years ago it wasn't uncommon to see such horizontal loops on cars, for 2M and 6M use, since this was before FM so "base" antennas were generally horizontally polarized. Michael They were called halos. They were horizontal polarized. If mounted a fraction of a wavelength over a conducting surface then they became DDRR antennas (directional discontinuity ring radiator)and vertical polarized. In the middle of the night the name came to me. And yes, there were those DDRR antennas that mounted on car roofs with suction cups. Michael |
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