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Thread: Naza GPS issue...

  1. #1
    Full Blown Hucker
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    Naza GPS issue...

    I've try to find a post on that but didn't find one...

    When i put on Gps mode my F550 is start doing circle bigger and bigger...
    What causing this?
    and Btw i did a compass calibration and everything work well

    tks

    TREX 450 Sport! (MKS all around!)

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    Hitec Aurora9, Dx6i

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    Dji NAZA GPS f550 with Aeroxcraft landing and Mastor-G gimbal



  2. #2
    Pilot Extraordinaire seagee's Avatar
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    Are you located in northern or southern hemisphere?
    ex Trex 450, ex Trex 700, ex MK Octo, ex MK HL Quad, DJI NAZA 450, GAUI 500X with NAZA, DJI NAZA 550, WKM Y6. Cameras: Canon 550D, Sony NEX-5N, GoPro ...

  3. #3
    Full Blown Hucker
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    Quote Originally Posted by seagee View Post
    Are you located in northern or southern hemisphere?
    northern, i'm from montreal canada
    Why?

    TREX 450 Sport! (MKS all around!)

    TREX-250 se,

    Hitec Aurora9, Dx6i

    Phoenix V4

    Dji NAZA GPS f550 with Aeroxcraft landing and Mastor-G gimbal



  4. #4
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    the earth has a true north and a magnetic north. magnetic north is what compasses are sensitive to. depending on where you are on the continent (or world for that matter) you will have to make corrections for variations in the earths magnetic field. you may find that you may have to offset the "north" of the compass a few degrees(or more) to the left or right.

  5. #5
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    Sounds like TBE, (toilet bowl effect) It's related to the position settings (Z setting mostly) or you need to turn the GPS slightly to compensate.
    -Tim
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  6. #6
    Pilot Extraordinaire seagee's Avatar
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    I've found in New Zealand, adjusting for magnetic declination has had a significant and positive effect on my GPS capability for both Naza and Wookong. Based on your location as a starting point try rotating the GPS antenna 14 degrees anti-clockwise. You can use a protractor to measure the offset from the Naza Main Controller center line.
    ex Trex 450, ex Trex 700, ex MK Octo, ex MK HL Quad, DJI NAZA 450, GAUI 500X with NAZA, DJI NAZA 550, WKM Y6. Cameras: Canon 550D, Sony NEX-5N, GoPro ...

  7. #7
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    I am in Las Vegas and my magnetic declination is 12 degrees. I fly my WKM and my Naza GPS pointing straight forward and have not experience TBE. I understand that my experience is not indicative of someone else's. If you are having problems with TBE I would try and rotate the GPS. I had a user pm me and he was able to completely eliminate his with about 15 degrees of rotation. Just another tool if you are having problems.

  8. #8
    Full Blown Hucker
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    tks guys! i will try this tomorow!!

    TREX 450 Sport! (MKS all around!)

    TREX-250 se,

    Hitec Aurora9, Dx6i

    Phoenix V4

    Dji NAZA GPS f550 with Aeroxcraft landing and Mastor-G gimbal



  9. #9
    Pilot Extraordinaire thehatguy's Avatar
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    Here is a calculator to use:

    http://geomag.nrcan.gc.ca/calc/mdcal-eng.php

    John

  10. #10
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    i emailed dji regarding thesame problem with my naza gps system..according to them if my system goes into toilet bowl turning clockwise i need to reposition my gps about 10 to 20 degrees to the left and if its turning counter clockwise i need to turn my gps 10-20 degrees to the right...after repositioning the gps should be recalibrated again........................................now my naza gps works like a charm...thats all folks

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