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Old Nov 14, 2009, 01:18 PM
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2.4 GHz 11 dBi Dual Diversity Antenna

I'm not expert on Antennas but is this better than a standard patch? I know its not the same as two RXs but I don't understand the Dual Cross-Polarization Diversity.

http://www.l-com.com/item.aspx?id=20308

How about it Antenna Gurus?
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Old Nov 14, 2009, 01:27 PM
FPV addict
Giske, Norway
Joined Aug 2009
521 Posts
I have one of these and I'm only using the vertical output.
Dunno if that is recommended or not
But I get good range.
I have it connected to a duo diversity receiver together with a 5dBi rubber duck antenna.
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Old Nov 14, 2009, 05:13 PM
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Quote:
Originally Posted by KristianS View Post
I have one of these and I'm only using the vertical output.
Dunno if that is recommended or not
But I get good range.
I have it connected to a duo diversity receiver together with a 5dBi rubber duck antenna.
Thanks for the reply! At least we know its working for you. Perhaps we can get some Antenna experts to clue us in and get even better performance.
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Old Nov 14, 2009, 05:20 PM
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Charles Town, WV
Joined Jan 2008
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Each lead must be hooked to a seperate receiver and each receiver to a diversity device. The purpose of this is to give you the best signal when your plane is flying level with antenna verticle and also when you turn and your antenna stars going horizonal. You want the tx and rx to have their antenna polarized in the same way. This helps with that.
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Old Nov 14, 2009, 06:12 PM
FPV addict
Giske, Norway
Joined Aug 2009
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Hmm, maybe I will try to fly only by the 11dB with vert and horz connected next time.
How will the performance be a short range?
I have read that the higher the gain is, the more directional the antenna must be.
Anyone know what my angle will be, until I must have someone move the antenna?
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Old Nov 14, 2009, 06:24 PM
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According to l-com it has a 60 degree horizontal beam width and 30 degree verticle beam width.
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Old Nov 15, 2009, 08:59 AM
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Giske, Norway
Joined Aug 2009
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Cool, will try tomorrow
Thanx
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