new (last month) 1054Z with all upgrades and SP4 firmware.
When viewing the cal signal - as I change the time base, the displayed rise time changes.
The signal does not change so why does the displayed rise time change?
single channel, AC coupled, triggered @ ~ 50%, Vert = 100mv/, waveform centered, full rise of waveform on screen, using cursors.
Time Base (µs/) Rise Time µs
1........................3.00
2........................3.10
5........................3.15
10.......................3.50
20.......................3.40
50...................... 3.50
100......................5.00
200......................8.00
500.....................10.00
If this is a function of the sampling, what settings will show the correct rise time? I understand that there will be (and is) a variation at any setting because of the sampling and a longer time base will eliminate that. But going from 3µs to 10µs for different time base settings doesn't seems good.