I'm new to compasses etc. I recently purchased the GH-561 because it is a 3 axis compass. In researching before I purchased I learned there are 2 axis and 3 axis compasses. The two axis having to be held horizontally to read, and I was under the impression the 3 axis did not have to be held horizontally, which is why I bought the 561. However, when I hold the 561 at a tilt not too far from horizontal the compass heading doesn't point north.
Is this normal? Am I incorrect of my understanding of what a 3 axis compass is?