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  • December-02 2017 16:41:57

    I'm using this module with a Raspberry PI B+ in order to have a NTP Stratum 1 server. With the integrated antenna I can't detect satellites but with an external antenna on SMA port it's good (9 detected, 8 used). I'm using too the PPS output and it's working fine.

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  • September-21 2018 12:38:44

    Arrived very well packed and unharmed. The built in antenna is also pretty good in my (suburban) area (works even indoor close to a window), however it needs a capacitor marked C2 (the only one not soldered) soldered. (I've used a ~100pF ceramic one, since I've found no guidance what value to use). This means that this is not for beginners (since it requires good soldering skills/station, good eyesight/magnifier unless one settles for external antenna only, which is in my view not required for outdoors). So

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  • October-10 2018 02:53:04

    It's an excellent module (I've bought more of it) that has built in antenna (that works after soldering a capacitor) but best used with external antenna. I use the 1pps signal to provide very precise time reference. Highly recommended by me for this.

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  • May-22 2018 02:38:49

    very accurate

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  • November-05 2020 04:12:00

    Works well with external aerial, compared accuracy with other GPS modules and location on Google earth very good.

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  • May-27 2020 23:24:00

    The onboard antenna has really poor reception, but works perfectly with an external antenna.

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  • July-31 2018 03:03:05

    I easily found libraries and documentation on internet to use that module but it seems that I suffer from incomplete datas. As you can see on my picture. Does someone has the same problem ? And a fix ? Should I use an SMA antenna ? I'm using TinyGPS++ library. Is that a good library for that kind of module ?

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  • April-22 2018 20:05:16

    Pro: It works with U-center, has external and internal antenna, USB. Con: The Ublox module is fake so there's a bit of misrepresentation. I bought two modules and both have the same serial number. Plus U-center reports the classic "Rom Core" message so no software upgrade. Sensitivity with the internal antenna is low with C2 installed.

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  • March-26 2018 16:57:09

    This unit was sent (very quickly) to me after a previous one I bought presented problems. The problems remain, but I discovered that the on-board antenna produces a signal too weak to be used for a satellite fix, at least where I live. I bought an external antenna, and now everything works Ok. No problems in connecting to an Arduino, but the firmware cannot be updated.

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  • April-29 2018 18:05:28

    Excellent functionality, usb, TTL and 1PPS, as well an option for an external antenna. Only drawback - if you want to use the internal antena you have to alter the device... Should be automatic.

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