OSD shows wrong height

Discussion in 'ALTA 8' started by Reiel Lien Bruland, Feb 11, 2019.

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  1. Reiel Lien Bruland

    Reiel Lien Bruland New Member

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    Hi!

    Im having some trouble with my OSD. after boot it shows -55 on the OSD. I cant seem to find a good place to reset this, also i belived that it was suppose to reset on every boot.

    Any similar problems or tips out here?

    Thanks!
    -R
     
  2. Andy Johnson-Laird

    Andy Johnson-Laird Administrator
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    Hi Reiel: That's the first time I've seen that issue. You might want to open up a ticket with Freefly Support and the best way of doing that is to head over to https://freeflysystems.com/contact

    That said, when their workload permits, I do know that Freefly technical support will occasionally review some of the threads on the forum, but opening up a ticket really is the optimal way to get support.

    Oh...and I presume that you are at sea level and not 55 feet below? :rolleyes:

    Andy

    Forensic Software & sUAV / Drone Analyst : Photographer : Videographer : Pilot (Portland, Oregon, USA): Trees=2, Ground=1, Props=11. :(
    The Ground Is The Limit™
    ---------- Forensic Drone Analyst : Forensic sUAV Analyst : Forensic Unmanned Aircraft Analyst : Forensic Drone Expert
     
  3. Reiel Lien Bruland

    Reiel Lien Bruland New Member

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    Hi Andy!

    Thanks for getting back to me, the support staff answered very quickly so we are trying to solve this!

    hehe, im afraid not.. I think even if i was it should reset on arming motors no? ;)

    I'll post the solution here!
     
  4. Andy Johnson-Laird

    Andy Johnson-Laird Administrator
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    Hi Reiel: Yes. My understanding is that the pressure transducer's reading, whatever it is, is taken to be surface height when the motors arm, so it's a bit of a mystery why the OSD would then show -55 feet.

    I'll be interested to hear the resolution of the issue, though.
    Andy

    Forensic Software & sUAV / Drone Analyst : Photographer : Videographer : Pilot (Portland, Oregon, USA): Trees=2, Ground=1, Props=11. :(
    The Ground Is The Limit™
    ---------- Forensic Drone Analyst : Forensic sUAV Analyst : Forensic Unmanned Aircraft Analyst : Forensic Drone Expert
     
  5. Reiel Lien Bruland

    Reiel Lien Bruland New Member

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    So, just as expected.. Armed motors and the height meter reset.

    such a waste of your time.. hope you had a little fun at least :)

    thanks for the hangout!
     
  6. Andy Johnson-Laird

    Andy Johnson-Laird Administrator
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    Thanks for letting us know. I'd watch the OSD with some suspicion for the next few flights....

    Andy

    Forensic Software & sUAV / Drone Analyst : Photographer : Videographer : Pilot (Portland, Oregon, USA): Trees=2, Ground=1, Props=11. :(
    The Ground Is The Limit™
    ---------- Forensic Drone Analyst : Forensic sUAV Analyst : Forensic Unmanned Aircraft Analyst : Forensic Drone Expert
     
  7. Daniel Waghorne

    Daniel Waghorne New Member

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    Reiel, I was having the same issue. At boot, the Alta 8 would read -167ft on the OSD. Arming motors has always reset it to 0. This has been going on for 4 months, and I haven't noticed any negative side effects other than being thrown off when I forget it does this haha.
     
  8. Rick Gerard

    Rick Gerard Member

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    Hi suspect that barometric pressure changes foul up the display until the motor start. It’s always work that way for my Alta 6 and my Alta 8.
     

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