Integrated GNSS Max. Precision Channels Antenna UHF Radio RTX Compatible xFill Memory Cellular Satellites Additional Features Trimble R980 8mm H/15 mm V 672 Integrated Receive & transmit 450/900 MHz Yes Yes 9 GB 4G GPS, GLONASS, Galileo, BeiDou, NavIC, QZSS, SBAS ProPoint, TIP Tilt Compensation Trimble R12i 8 mm H/15 mm V 672 Integrated Receive & transmit 450 MHz Yes Yes 6 GB 3.5G GPS, GLONASS, Galileo, BeiDou, NavIC, QZSS, SBAS ProPoint, TIP Tilt Compensation Trimble R12 8 mm H/15 mm V 672 Integrated Receive & transmit 450 MHz Yes Yes 6 GB 3.5G GPS, GLONASS, Galileo, BeiDou, NavIC, QZSS, SBAS ProPoint Trimble R780 8 mm H/15 mm V 336 Integrated Receive & transmit 450/900 MHz Yes Yes 9 GB External GPS, GLONASS, Galileo, BeiDou, NavIC, QZSS, SBAS ProPoint, TIP Tilt Compensation Trimble R580 10 mm H/20 mm V 336 Integrated Receive 450 MHz Yes Yes 256 MB External GPS, GLONASS, Galileo, BeiDou, SBAS, QZSS ProPoint Trimble R2 10 mm H/20 mm V 220 Integrated Receive 450 MHz Yes No 48 MB External GPS, GLONASS, Galileo, BeiDou, SBAS, QZSS —