Difference between Recalibrate and Sync

Vladimir Steblina

My friend and I have just about given up on the difference between Sync and Recalibrate with the AP900.

Can somehow explain the difference in terms we can understand?? 

What difference does it make??  When is it appropriate to use one versus the other??  Thanks.

Yep, we read the manual.  English is my fourth language and that is my excuse and I am sticking to it.....however, my friend is a native English speaker!!


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