开云体育

I thought I would check that method. I had a 2465A that I was re-calibrating on the bench.

If I try your method of positioning the B Delayed Sweep directly under each individual Time Marker 2 and Time Marker 10 (ie CAL01 Step 8), it either indicates a LIMIT Error or doesn't clear Step 8 or the others for that matter. When they are positioned and near the center Vertical Graticle and overlayed (superimposed), it clears all of the steps. It completes all of CAL01 this way.

You do the same thing when you use the externally (Trigger by the B-Gate Output), Bench Scope lower trace later in the procedure.


Oh, and on the slow 10ms sweep test (CAL01 step dd), you still should superimpose the bottom traces.

The easiest way to tell that they are correct is to use the Delta Reference or Delay Position Control to line up one of the bottom traces (B-Delayed), left rising edge on the center Vertical Graticle.

Cover the top trace that is blinking with some paper or your hand, and adjust both traces so that they look like one trace. This can be seen as the back side of the two traces appear to not move in the 8 to 10 divisions area.

Then adjust the Delta Control to overlay the rising edge of both B-Delayed waveforms. The Bottom B-Delayed traces will not move after that. They are interactive and you will need to trim them to get them correct to pass the step.

That's the way I have always done it.

Ross