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The type of antenna has nothing to do with it. Gain is in no way related to polarity. The difference in signal is not calculated but rather measured in an RF anechoic chamber or an approved antenna test range. Theoretically the difference in polarity would yield infinite attenuation however in practice the difference is between 20 and 30 dB. Think of it like looking through two slots aligned as if the same polarity. When they line up you can see straight thru them. Rotate one of then 90 degrees and now all you can see is a tiny fraction of what you could see before.

Antenna Polarization Vertical Horizontal Circular Polarization | ASTRON WIRELESS

[QUOTE="Captain Kilowatt, post: 425333, member: 39"] The type of antenna has nothing to do with it. Gain is in no way related to polarity. The difference in signal is not calculated but rather measured in an RF anechoic chamber or an approved antenna test range. Theoretically the difference in polarity would yield infinite attenuation however in practice the difference is between 20 and 30 dB. Think of it like looking through two slots aligned as if the same polarity. When they line up you can see straight thru them. Rotate one of then 90 degrees and now all you can see is a tiny fraction of what you could see before. [url=http://www.astronwireless.com/topic-archives-antennas-polarization.asp]Antenna Polarization Vertical Horizontal Circular Polarization | ASTRON WIRELESS[/url] [/QUOTE]

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