Features  Specifications  22 tracking / 66 acquisition-channel GPS receiver  Supports up to 210 PRN channels  Supports multi-GNSS incl. QZSS, SBAS ranging  Supports WAAS/EGNOS/MSAS/GAGAN  12 multi-tone active interference cancellers (ISSCC2011 award)  RTCM ready  Indoor and outdoor multi-pat