- Dec 1, 2018
- Reaction score
5 degrees in declination/variation. Easy standard to follow. But people can calibrate as often as they feel comfortable. I have not calibrated mine in 2 months. Flown in southern and northern California at locations over 700 miles apart, but which have only a small difference in declination. No issues.5 degrees in change... LOL... What da heck is that?