UG_RFACT
sc->sc_sensor[i].rfact = UG_RFACT;
sc->sc_sensor[i].rfact = UG_RFACT;
rfact = UG_RFACT;
#define UG_RFACT3 3490 * UG_RFACT / 255
#define UG_RFACT4 4360 * UG_RFACT / 255
#define UG_RFACT6 6250 * UG_RFACT / 255