Can the OneRTK UM982 be used as a base station?
OK.
Does it support single Beidou mode?
Yes, it can be configured in pure Beidou mode in the host computer software. However, positioning accuracy and the number of satellites searched will decrease. Please be aware of this.
What happens if the RTK module suddenly loses base station data while the drone is in flight? Will it crash?
After the RTK rover loses connection with the base station, it will remain in a fixed state for 600 seconds. If no RTCM data is received during this 600-second period, it will exit the RTK fixed state and enter the 3D fix state. Positioning accuracy will be affected, but it will not affect flight and will continue to execute according to the scheduled mission.