Here is something I Noticed Sometimes while I'm scanning I noticed a arrow on the right side of screen its point up and then sometimes its pointing down what does that mean ?
That is the direction your scan is going, starting with site 1 group 1. If the arrow is pointed up, the scanner will next go to site 1 group 2, then site 1 group 3, eventually to site 2 group 1, site 2 group 2, etc. Etc. Etc. If the arrow is up the scan is ascending, if the arrow is down the scan is descending. You are the one that changes the direction of the scan if you'd like, the scanner will stay with arrow up or arrow down until you change it. I hope that answer makes sense.
Edit: typo
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