2445A self-test, how does the scope sense the spot on the graticule
I have been curious about the self-test sequence for my 2465A scope, particularly the spot dance sequence.toggle quoted messageShow quoted text
Recent discussion on 2445A calibration (see snippet below) implies that the scope senses the spot position vs. the graticule lines.
Is that the case?
If so, how does the scope detect the spot position without a camera or photodetector?
Re: 2445A calibration
If you haven't properly related the graticule to the cursor,