On 1/12/2019 2:06 PM, David Gilbert wrote:
This would allow a user to put up two vertical sense antennas to determine the azimuth of an incoming signal (albeit with a potential mirror image uncertainty). Or put up two horizontal sense antennas to display the arrival angle of an incoming signal.
Unfortunately, the real world is far more complicated that this. What you describe can work for local sources, but propagated sources can take different paths, each introducing delays that can, for example, cause cancellation of multiple arrrivals at on antenna while reinforcing at the other. THIS is what causes selective fading, and is why diversity works! In other words, it's FAR more than one vertical antenna and one horizontal one.
73, Jim K9YC ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
