RTH when RC signal lost...

[UK Bloke]

Hi
During a recent flight I lost signal with the MP2, I ran up the hill and re-connected fine.
Looking at the logs it seemed to wait longer than expected before doing a RTH to re-connect (it didn't actually do a RTH), I thought it was 3 seconds but it hovered for 7.2 seconds and looking at the video footage and flight map it didn't do a RTH. I have checked the DJI app setting for what the aircraft should do in the event of signal loss and it is set to RTH and NOT hover.

Any thoughts?
Thanks

 

[sar104]

It doesn't RTH immediately on disconnect - first it will retrace the previous 60 seconds of its flight path in an attempt to regain connection. Would that explain what you saw?

 

[UK Bloke]

Thanks for your reply.
It didn't move, it made no attempt to retrace it's route for a signal, it hovered for 7.2 seconds.

 

[sar104]

Thanks for your reply.
It didn't move, it made no attempt to retrace it's route for a signal, it hovered for 7.2 seconds.

It's also possible that the uplink was still active even if you had lost downlink - in that case it would still be under RC control.

 

[UK Bloke]

ok, maybe I need to test this, perhaps folding down the RC aerials to force a dropped link and see what happens...

 

[sar104]

ok, maybe I need to test this, perhaps folding down the RC aerials to force a dropped link and see what happens...

Just turn off the RC.

 

[Moose1967]

If it happens again hold up on the height stick - that is if there are no height obstacles - that way you may get a bit of signal to the drone and usually that results in controlling it again - if it goes into RTH it will come back at the height the drone lost signal (if it is above the RTH height already) - if it’s below RTH height it will climb to the RTH height eight and come back - likely u can gain control once u see the screen come back. Once my iPad died and i didn’t a RTH - the audience watching the screen went OMG what are you gonna do now - it came home exactly the way it wasn’t supposed to but I stopped it as I didn’t want it to land on a hay bail wrapped in plastic.