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#1
October 1st 12, 08:33 PM
posted to rec.aviation.soaring
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PowerFlarm BRICK range issues - are we alone????
Andy, you are right, the antenna is not necessary the dipole
version. I think that dipole antenna is omnidirectional, since it radiates equally in all directions in plane. The radiation pattern should be donut shape. If antenna is 1/4 wave stick on ground plate, isn't the pattern a half sphere? At 18:00 01 October 2012, Andy wrote: On Oct 1, 9:30=A0am, Kimmo Hytoenen wrote: The antennas delivered with FLARM are omni-directional, so the range analysis is spherical in optimum case. A dipole is not omni-directional. The pattern of an ideal dipole in free space is not sherical. Why do you believe that the antennas delivered with FLARM are omni-directional? Andy 
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