Griffith
First Officer
Flight distance : 98537 ft
United States
Offline
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Have you tried another completely different location- miles away from the beach?
In my experience RC connection failures at close distance are rare - but do happen. Since you have changed drones (and presumably RCs), about the only explanation left is RF inteference - which could be at either the RC or the Mavic. (I noted that you stated the antennae were properly aligned.) At the RC end, I always place my phone in Airplane mode. Presumably you're not carrying other RF emitting devices. At the Mavic end, avoid transmission towers and urban environments. It appears you were on a relatively deserted beach when one of you incidents occurred, so those two possibles were probably avoided. The only other (infrequently observed) sources of interference may come from military operations or deliberate interference. Thus my suggestion to try another remote location - out in the countryside, for instance.
If you were receiving interferrence at the RC, the Mavic should still be controllable by the RC. If the inteferrence is at the Mavic (like it seems it may be), the Mavic should execute RTH.
This won't solve your problem, but it may shed some light on the source. Some very useful information will also come from the DAT file as droneflying has indicated.
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