Lost GPS - RTH initiated (not sure why)

[goixiz]

I like to know if it was something i could have avoided to trigger GPS lost and RTH (failsafe) - Drone flew back to my homepoint (AC safe)

First time i experienced and watched the AC RTH from a bit further tha i normally play.
Can someone aalyze my logs and see what i did or I can avoid in future

 

[Northwood Mediaworks]

Not sure what made your GPS freak out, but you took off in a warning zone (Class D).... Is that where you usually fly?

Below is the log uploaded to FLV...
DJI Flight Log Viewer - PhantomHelp.com

 

[lmel2005]

If GPS was lost, atti mode should be triggered. No GPS means that spark doesn't know where it is, and of course cannot return to home.

Am I wrong?

 

[Speedmeister]

If GPS was lost, atti mode should be triggered. No GPS means that spark doesn't know where it is, and of course cannot return to home.

Am I wrong?

auto RTH happens when RC and AC losses connection, not GPS. I fly my spark indoors with no GPS.

 

[goixiz]

If GPS was lost, atti mode should be triggered. No GPS means that spark doesn't know where it is, and of course cannot return to home.

Am I wrong?

Nope - it did trigger the RTH and i regain control shortly after RTH started but i like to know what triggered the RTH

 

[lmel2005]

Nope - it did trigger the RTH and i regain control shortly after RTH started but i like to know what triggered the RTH

Ok, so GPS wasn't lost.

Djigo4 app, informed you about rth triggered?

 

[landude]

I uploaded your log again. DJI Flight Log Viewer - PhantomHelp.com
It was 58 seconds in till you finally recorded a home point, which is odd. At 3m 1s you lost signal for 12 seconds which kicked in RTH. Did you regain control because after a bunch of go home's it goes into sport mode.