Abgeschickt von Jerry am 22 Juni, 2008 um 02:17:41
There may be no interest in antennas for APT amongst users of this group. I have seen that the performance of the Quad helix can be improved upon for APT imaging and assume others might appreciate knowing about the DCA antenna design concept, which works better than the QHA or other Quad helix type antennas.
It is often written that a Quad Helix is the ideal antenna for APT reception. That statement is not true. The Quad Helix, when properly constructed can provide performance that is considered “good enough” for APT imaging, but not ideal. In addition to its not being ideal, it is usual that it is difficult to properly construct a Quad Helix.
All corrections or corrections to my statements will be appreciated.
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