Sim908 using internal GPS

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msj121

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I looked over the hardware design and reference design and not much is mentioned about using the onboard GPS u.fl antenna. Clearly I don't connect GPS-ANT, but do I connect GPS-VANT-IN to GPS-VANT-OUT? I would assume not (it's not mentioned), but I have seen schematics connect them!

For example: https://www.cooking-hacks.com/skin/.../documentation/tutorial-sim-908/Schematic.pdf


Please has anyone not connected them to each other, or not? What is the proper design choice....
 

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