1) The procedure calls for a Time-Mark Generator. Is this really just a pulse generator? What is the pulse width?
2) Is the Time-Mark a positive pulse, i.e. it does not go below gnd in its low state?
3) What should the amplitude of the Time-Mark be set to?
4) The procedure says to adjust the deltaREF control to intensify the 2nd (for example) time marker and adjust the delta control to intensify the 10th time marker. Okay, I understand that. Then it says to superimpose the delayed B Sweep time markers within 0.2 division. Not sure about this. I see the 2 magnified (B?) sweeps, so am I supposed to adjust them to align the edges on top of each other? Is that like a fine control on adjusting the times? Does it matter which delta control(s) I use to make this fine adjustment?
5) The final Time-Mark setting is for 20ns (50MHz). My waveform generator only goes to 30MHz. Could I use a 40ns (25MHz) square wave and count edges instead of time marks?
