s://emlid.com/reach/|Reach M+]] - RTK GNSS module for precise navigation and UAV mapping - $265.
Reach ... meter accuracy and streams them in NMEA or binary format to your device over UART, Bluetooth or Wi-Fi. PPK for UAV mapping. Centimeter accuracy without GCP
Le ... ion GNSS modules, High precision GNSS performance for the mass market
* Integrated Real Time Kinemati
and SBAS
* Various positioning modes with GNSS for both real-time and post-processing: Single, DGPS/... Fixed, PPP-Kinematic, PPP-Staticand PPP-Fixed
* formats and protocols for GNSS: RINEX 2.10, 2.11, 2.12 OBS/NAV/GNAV/HNAV/LNAV/QNAV, RINEX 3.00, 3.01, 3.02... IONEX 1.0, NGS PCV and EMS 2.0 (refer the Manual for details)
* external communication via: Serial,
:informatique:gps:rtklib|]]
* Témoignage sur un forum: [[http://www.mk-fr.info/forum/index.php?topic=29979.0|http://www.mk-fr.info/forum/index.php?topic=29979.0]]
* Le [[https://stor... uchscreen_GUI wiki]]
* Drotek RTK configuration for ubox : [[https://github.com/drotek/SMARTNAV-RTK/w