The user should always make themselves familiar with the capabilities and limitations of the equipment they are using in order to extract the best informational value out of its use. Besides, it is fun to play with a new piece of test equipment when you first get it just to get familiar with it.
I have a Lecroy 9374L that at least informs you when it is doing this by placing RIS next to the time/div on the display. Newer Lecroys will *not* enter this mode unless the user specifically sets up the scope to do so.
Here's some pretty good info on the subject:
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gnd
Very suseptable to switching noise and dificult to read the display if you cant look directly at it.
er
Yes an excelent choice although it is suseptable to radiated noise. The earlier version is cheap(ish) on ebay but it doesnt work so well at line frequencies.
So far!!
For those of us who are used to looking at screens square on that is not a problem (most old scopes you needed to do that because the graticule layer was separate from the screen. You needed to be square on to properly check out the timing or amplitude of the waveform you were monitoring.
Hmmm, if we are going to grade marriages like investments, do we need a "Past performance is no guarantee of future results" disclaimer? ;-)
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