recommend a faster GPS module?

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hello,
i got 1 of u-blox gps modules ebay cheap, $15.  takes quite while gps lock powered off situation - 8 minutes.  there seems tiny tiny battery maybe suppose save previous gps data lock on faster?  well, maybe battery small of help.

has had experiences cheap (less $30) gps module?  looking getting gps lock within 2 minutes.  of them come built-in memory doesn't have relay on little coin battery?

thanks suggestions.

eight minutes satellite lock (it can take 15 minutes) typical of "manufacturer cold start", meaning module has receive , process of information on satellite orbits. suspect cheap chinese module bought has dead battery or defective battery backup circuit.

just of manufactured battery-backed modules quite fast, if have seen satellites. ublox lea-6h can lock in less 15 seconds if has been on, , had satellite lock @ time in last month or so. bought 3d robotics no longer sell particular module.





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