GPS Channels:220 GPS:L1C/A, L2C, L2E, L5 GLONASS:L1C/A, L1P, L2C/A (GLONASS M only), L2P SBAS:L1 C/A, L5 Galileo:L1 BOC, E5A, E5B, E5AltBOC BDS:B1, B2 QZSS:L1 C/A, L1 SAIF, L2C, L5 RTK Horizontal positioning accuracy:8mm+1ppm RTK Vertical positioning accuracy:15mm+1ppm RMS Dimensions (W x H):153mm x 83mm (6.02inch x 3.27inch) Show More