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Compass Calibration - Success after using magnet

Discussion in 'Phantom 2 Vision Discussion' started by jedi88, Feb 22, 2014.

  1. jedi88

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    I was trying to calibrate my compass and got the dreaded red / amber warning. I think amber...

    I then used a magnet and it passed the calibration perfectly.

    Question : Should I be looking at the values through the assistant OR the fact that it passed is good enough?
     
  2. Pull_Up

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    If it was me I'd check the values just to make sure they are well within limits to avoid another warning when you next want to take off, or worse in the air.
     
  3. P2VUp

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    How did you use a magnet to get the compass to calibrate?

    Did you do a demagnetization dance or something else?
     
  4. jedi88

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    Took a magnet and circled the compass a few times, then lights went away and calibration was successful
     
  5. Pull_Up

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    Here's the dearly departed Colin Guinn showing you how to do it. Please note, perma-tan and bicep-straining t-shirt arms are not required:

    [youtube]http://www.youtube.com/watch?v=aLHzzX2ykKw[/youtube]
     
  6. jedi88

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    I had watched the video a few times...

    My Compass raw

    x - 16 y -237 z- 266 MOD = 2143

    Looks like I need to get mod down to 1200-1600

    Weird how calibration passed?
     
  7. jedi88

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    Ok got MOD =1593

    You need to be a rocket scientist to own this :)
     
  8. Geoelectro

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    This video made me cringe a little. As a veteran electronics guy this method of de-magnetizing was...sloppy.
    The proper way to de-magnetize is to introduce alternating polarities and gradually remove them.
    So taking a magnet and bringing it in close proximity of the compass while constantly moving it in a circular motion. Then, while still moving it, gradually move farther away from the compass until you are several feet away. I magnetize screwdrivers all the time by introducing a single polarity. To de-magnetize I would introduce apposing polarities and gradually reduce it.
    I have found you can de-magnetize a screwdriver by banging it on a hard surface. Probably not a good idea for the Phantom! :D

    Geo
     
  9. Venom93corba

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    Good video. I've never seen this. Great way to fix a bad compass.

    Sent from my Galaxy Note 2
     
  10. Scottrod

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    I never saw that video before either. Good to know.