Lost GPS - RTH initiated (not sure why)

Discussion in 'Spark Help' started by goixiz, Jul 12, 2018.

  1. goixiz

    goixiz Well-Known Member

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    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
     

    Attached Files:

  2. Northwood Mediaworks

    Northwood Mediaworks Well-Known Member

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    Location:
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    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
     
  3. lmel2005

    lmel2005 Well-Known Member

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    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?
     
  4. Speedmeister

    Speedmeister Member

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

    goixiz Well-Known Member

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    Nope - it did trigger the RTH and i regain control shortly after RTH started but i like to know what triggered the RTH
     
  6. lmel2005

    lmel2005 Well-Known Member

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    Ok, so GPS wasn't lost.

    Djigo4 app, informed you about rth triggered?
     
  7. landude

    landude Active Member

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    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.