Welcome to PhantomPilots.com

Sign up for a weekly email of the latest drone news & information

My P2 isn't stable

Discussion in 'Phantom 2 Discussion' started by ginsonic, Aug 29, 2014.

  1. ginsonic

    Joined:
    Nov 8, 2013
    Messages:
    103
    Likes Received:
    0
    Hi guys,

    For couple days I have a problem with my P2. After I downgraded to 1.08 my P2 don't keep possition. Is moving around my point. Up or down, left or right, forward or backward almost a 40-50 cm.

    What you suggest me to do? Maybe gains are not good?

    Thx in advance for support!
     
  2. q8f1

    Joined:
    Jun 28, 2014
    Messages:
    139
    Likes Received:
    0
    Have you re-calibrated everything in RC and P2 assistant, compass cal, IMU calibration, x-y-z should be +/-300 and mods 1400-1800.

    In the UK? The last 3 days have since the K index at 4 or 5.

    I'm sure someone who knows a lot will be along....
     
  3. noiseboy72

    Joined:
    Jul 13, 2014
    Messages:
    575
    Likes Received:
    17
    Location:
    Lincs, UK
    Sounds like the gains need tweaking. I would imagine that when you uploaded the new firmware, the default gains went with it.
     
  4. freefall101

    Joined:
    May 29, 2014
    Messages:
    157
    Likes Received:
    0
    Is this on a toally calm day? I got like a whole metre side to side variation today but it was breezy so I assume it's the wind for me.
     
  5. HarryT

    Joined:
    Aug 4, 2014
    Messages:
    622
    Likes Received:
    0
    Location:
    Warrington, UK
    It's entirely normal for a hovering Phantom to slowly wander around within perhaps a 2m radius circle, because that's the limit of the accuracy of GPS. You should be actively "flying" it while hovering, to maintain its position.
     
  6. UrAwFuL

    Joined:
    Apr 18, 2014
    Messages:
    622
    Likes Received:
    12
    Location:
    Los Angeles, CA
    How high were you flying?

    From my experience, I usually get a bit of movement while hovering at around <10 feet.

    HarryT is also right about the 2m radius, but it does kind of look like it holds position at a high altitude to me.
     
  7. HarryT

    Joined:
    Aug 4, 2014
    Messages:
    622
    Likes Received:
    0
    Location:
    Warrington, UK
    You're absolutely right that if you're hovering in the turbulence from the Phantom's ground-effect, you get a lot more movement than if you're higher up.