The agricultural plant protection drone has a situation where GPS cannot be located for a long time:
First, calm down and wait, because GPS cold start takes time. If the situation still does not improve after waiting a few minutes,
It may be because the GPS antenna is shielded. GPS is disturbed by nearby electromagnetic fields, you need to remove the shield, away from the interference source,
Place it in an open area to see if it gets better. In addition, the cause of this situation may also be that the GPS has not been powered on for a long time.
The distance between the local and the last GPS positioning point is too long, or the microwave power switch was turned on before the aircraft positioning. You try to close
Turn off the microwave power switch, turn off the system power, restart the system power at least 5 seconds to wait for positioning. If it is not located at this time, it may be a problem with the GPS's own performance, you need to take it to a professional agricultural plant protection drone maintenance personnel.
