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Old Mar 25, 2011, 08:39 AM
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Linear polarization is only good for the stationary TX and RX (like wifi) and also used primarily because antennas are cheaper.

Circular is always used for non-stationary TX or RX in the professional applications (like satellite communication).

RC electronics just doesn't seem to use it, probably due to costs and size. I am glad someone is exploring this now. It could also be theoretically possible to have video tx on the 2.4ghz and use 2.4ghz radio (like FASST), both with opposing circular polarizations. Someone should try it.
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