JP Coenen

cover

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Version 3Added two holes at each side of the casing to match female SMA antenna chassis connectors so that an external antennas can be used, one for the GPRS (4G) and one for the GPS. It&#39;s a good idea to use an active GPS antenna (A7670 provides 3V at the uFL connector for this) as it speeds up the GPS initial locking process and I used a cable adapter SMA female to U.FL as shown in the pictures.&nbsp;As per the antenna, I used a superbat active GSM/GPS, it&#39;s slapped onto  my car&#39;s roof (be aware that the magnet is a wee bit flimsy though).The device itself (A7670G) is in the boot/trunk and the aerial cables are going through thanks to the boot gasket. I also tried a JCA001 Active GNSS-GPS Antenna which is provided with a 3 meters cable and a better magnet, but then another antenna has to be used fr the GSM service (eg a whip antenna).&nbsp;&nbsp;&nbsp;

0.2mm layer, 2 walls, 15% infill

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LilyGo T-SIM A7670G S3

Slightly modify the covers to add a basic lock mechanism

LilyGo T-SIM A7670G S3 V2

ASIA

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