When the GPS signal is weak or when there is GPS signal interference from the cell tower, a GPS lock error may result and the satellite count at the top of the screen turns red:
The required actions differ depending on the situation:
- If you cannot take off, try waiting until the satellite count is sufficient and the count turns green. If waiting does not help, try a different liftoff location further away from the tower or other electric installations that might interfere with your drone’s GPS system.
- If the GPS lock fails during a mission due to electromagnetic energy (EME) interference from the cell tower, the mission aborts automatically. In this case, in the SiteSee Mission Planner App, increase the ‘Distance to tower’ setting for the affected flight by 1 m (3.3 ft) and restart the flight. If the problem persists, again increase the ‘Distance to tower’ setting by 1 m (3.3 ft) and try again. Keep increasing the ‘Distance to tower’ in increments of 1 m (3.3 ft) until GPS failure no longer occurs. Bear in mind, though, that capturing the tower further away will result in lower resolution.
Some Drones Are More AffectedSome drone models are more susceptible to GPS interference and errors than others. For example, the DJI Phantom 4 Pro is more susceptible than the DJI Phantom 4 Pro V2.0. The DJI Mavic 2 Pro performs particularly well in this regard and is much less prone to GPS interference than the Phantom 4 drones.