Welcome to PhantomPilots.com

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

Compass calibration

Discussion in 'Pro/Adv Discussion' started by cactus683, Mar 8, 2016.

  1. cactus683

    Joined:
    Mar 8, 2016
    Messages:
    46
    Likes Received:
    1
    Whats the story with compass calibration.Should it be done before each flight no matter what?Or if you move 100 miles away to another spot etc.All different answers dont know what to do.
     
  2. Oso

    Oso

    Joined:
    May 19, 2015
    Messages:
    2,534
    Likes Received:
    1,480
    Location:
    Sacramento CA
    You can start with reading this post:
    Compass Calibration, A Complete Primer

    There are many differing opinions, so do some research and decide for yourself. As for me, I don't do it every time. Only if I have traveled a significant distance away (dozens of miles).
     
  3. msinger

    Approved Vendor

    Joined:
    Oct 30, 2014
    Messages:
    18,965
    Likes Received:
    5,582
    Location:
    US
  4. cactus683

    Joined:
    Mar 8, 2016
    Messages:
    46
    Likes Received:
    1
    Thanks im so frigging nervous as this will only be my third flight tomorrow im definitely within a 5 mile radius of my last takeoof point,ill see how the compass mod reads also.
     
  5. lonjsnyder

    Joined:
    Jul 25, 2015
    Messages:
    73
    Likes Received:
    18
    A simple solution is to always be ready to change the flight mode from GPS to ATTI should you ever have seemingly erratic GPS flight behavior.
    I've seen recommendations between 60 to 100 miles. Calibrating before every flight carries its own risk of getting a bad calibration.


    Sent from my iPhone using Tapatalk
     
    cactus683 likes this.
  6. Meta4

    Meta4 Moderator
    Staff Member

    Joined:
    Jan 8, 2014
    Messages:
    7,734
    Likes Received:
    3,451
    Relax ... once you have a good compass calibration, just stick with it.
    You can safely fly for months without recalibrating the compass and unnecessarily recalibrating it introduces the risk of a bad calibration which is much worse.
     
  7. sonof40

    Joined:
    Oct 22, 2015
    Messages:
    515
    Likes Received:
    82
    Location:
    San Ramon, CA
  8. cactus683

    Joined:
    Mar 8, 2016
    Messages:
    46
    Likes Received:
    1
    Now if my mod is around 1200 i just checked here in the house,i should just double check it tomorrow before getting airborne?
     
  9. cactus683

    Joined:
    Mar 8, 2016
    Messages:
    46
    Likes Received:
    1
    Thanks alot!As i have no experince in atti i guess its really not that hard just some correction with wind and stuff
     
  10. ryantrax

    Joined:
    Jul 14, 2015
    Messages:
    795
    Likes Received:
    179
    Location:
    Xenia, Ohio
    I only calibrate if I go about 50 miles away from my previous calibration location or if I see a little wandering in the yaw.
     
  11. cactus683

    Joined:
    Mar 8, 2016
    Messages:
    46
    Likes Received:
    1
    SInce i started flying i always do a flight control test before going a long way,best thing to do i guess
     
  12. CaptainDrone798

    Joined:
    Feb 5, 2016
    Messages:
    612
    Likes Received:
    291
    Location:
    Canada
    Here is my experience... Having a compass not properly calibrated is not the end of the world. Your Phantom will still hover in place, although it may move around a bit more. It will still fly, although it will not fly in a straight line even when you do Home Lock. What won't happen is... Your Phantom won't fly away, won't suddenly start flying 500 feet in every direction even though you're not touching the controls and it won't head off looking for the nearest lake to go for a swim.

    What I'm getting at is that you will 100% know when you take-off if your compass is not properly calibrated which is then your signal to land and calibrate.

    How often do I calibrate my compass? Only when it seems like it needs it (i.e., it does not hover correctly, appears to not fly straight). Sometime's your Phantom will tell you before you take off that the compass needs to be calibrated. If you had calibrated not so long ago and everything has been fine, then there is a very good chance that your Phantom is sitting near or on metal objects. In such a case my advice is DO NOT CALIBRATE YOUR COMPASS, but rather just move the Phantom however many feet away to a spot where it no longer tells you the compass needs calibrating. If you try and calibrate a compass that is being thrown off by metal objects, then your Phantom is going to fly as if you didn't calibrate the compass at all.

    As noted at the start, the above has been my experience and I've not had any issues.
     
    cactus683 likes this.
  13. cactus683

    Joined:
    Mar 8, 2016
    Messages:
    46
    Likes Received:
    1
    Thanks alot ! I will find out in the morning!!!