+#define UBLOX_CFG 0x06
+
+#define UBLOX_CFG_NAV5 0x24
+
+#define UBLOX_CFG_NAV5_MASK_DYN 0
+#define UBLOX_CFG_NAV5_MASK_MINE1 1
+#define UBLOX_CFG_NAV5_MASK_FIXMODE 2
+#define UBLOX_CFG_NAV5_MASK_DRLIM 3
+#define UBLOX_CFG_NAV5_MASK_POSMASK 4
+#define UBLOX_CFG_NAV5_MASK_TIMEMASK 5
+#define UBLOX_CFG_NAV5_MASK_STATICHOLDMASK 6
+#define UBLOX_CFG_NAV5_MASK_DGPSMASK 7
+
+#define UBLOX_CFG_NAV5_DYNMODEL_PORTABLE 0
+#define UBLOX_CFG_NAV5_DYNMODEL_STATIONARY 2
+#define UBLOX_CFG_NAV5_DYNMODEL_PEDESTRIAN 3
+#define UBLOX_CFG_NAV5_DYNMODEL_AUTOMOTIVE 4
+#define UBLOX_CFG_NAV5_DYNMODEL_SEA 5
+#define UBLOX_CFG_NAV5_DYNMODEL_AIRBORNE_1G 6
+#define UBLOX_CFG_NAV5_DYNMODEL_AIRBORNE_2G 7
+#define UBLOX_CFG_NAV5_DYNMODEL_AIRBORNE_4G 8
+
+#define UBLOX_CFG_NAV5_FIXMODE_2D 1
+#define UBLOX_CFG_NAV5_FIXMODE_3D 2
+#define UBLOX_CFG_NAV5_FIXMODE_AUTO 3
+