An error of 3 degrees in clino does indicate a device out of calibration.  I 
would expect it to be within 0.5 degrees for a well calibrated device, and 
would not tolerate more than 1 degree.  In my experience poor calibration is 
usually down to either just inaccurate calibration shots, or local magnetic 
anomalies: take off watch, step counter, metal belt buckle, jewellery, glasses, 
helmet, lights, steel toe caps, etc!!

Sent from my iPhone

> On 5 Sep 2019, at 12:10, Max D <m...@foxel.org> wrote:
> 
> So I know that if the display is to the right the Disto tends to reassure an 
> Azimuth 2 degrees to high and if the display is to the left.
> And when the display is to the left it tends to give an Azimuth 1 degree to 
> low.
> 
> But perhaps I just should try to do more and better calibrations instead of 
> fixing stuff afterwards.

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