and also the cheapest !
Centimeter‑level GNSS positioning for mass market, based on U-Blox M8P
Integrated Real Time Kinematics (RTK) for fast time‑to‑market
Smallest, lightest, and best energy‑efficient RTK module
Receiver type: 72-channel GPS L1 , GLONASS L1, BeiDou B1, GALILEO E1
Nav. update rate: up to 8 Hz
Position accuracy: 2.5 cm
Connectors: SMA, USB, JST-GH
Data link: whatever can be connected to a UART : Bluetooth, 433-868-915 MHz radio link, XBee, WiFi...
Size: 23.5x24.5mm
11 сен 2016