Are you located in northern or southern hemisphere?
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
Thanks for link it's real good, i try also my Compass on Android phone and it give me the same result of your link, so everybody can calculate Magnetic Declination only with cell phone ;-)
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