Evaluation board for S2525F8-GL-RTK receiver module that offers RTK centimeter-level position accuracy. Supports USB and LVTTL UART interface.
Please see S2525F8-GL-RTK product page for details.
When set to base mode, it outputs carrier phase raw measurement for GPS L1, GLONASS L1, QZSS signal; can also be used with other post-processing software.
OTHER ITEMS OF INTEREST
Tri-Band GPS/Galileo, Beidou, GLONASS Active Antenna: http://navspark.mybigcommerce.com/tri-band-gps-galileo-beidou-glonass-active-antenna/