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bluegill

Passive GPS antennas

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Has anyone used a passive antenna on their GPS? In my ignorance it seems to me that it should be OK, because there shouldn't be anything between the antenna and the satellites -- at least I intend to fly my plane outdoors.

I was looking at the Yageo antenna in Mouser (part number 240-43

13-114-00158) and wondering if it and a Garmin GPS15L would be a good combination.

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The preamp is definately needed on GPS antennas that have a long feedline. But beyond that, I am not sure how reliable the GPS connection will be in a R/C based application without the amp (the antenna orientation will not always be optimized). This is something that I think would be addressed on a case by case basis.

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Hi.

As I'v said before I'm using a Liapac UV40 GPS with a passive,and am getting a sensitivity reading of over 50.So personally I can see no reason why you need a powered antenna for our use. Please let me know if I can be of any help!

All the best Lyn.

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