EEVblog #223 - Agilent Oscilloscope High Res Mode

Dave demonstrates a little trap with the "High Resolution" mode on modern digital oscilloscopes like the Agilent 3000X series.

[EEVblog]

@Afrotechmods All they say is "High Resolution mode averages sequential sample points within the same
acquisition. An extra bit of vertical resolution is produced for every factor
of 4 averages. The number of extra bits of vertical resolution is dependent
on the time per division setting (sweep speed) of the oscilloscope."

[philbx]

Another great video Dave. Thanks again.

After first glancing at the link 'Oscilloscope Hires Mode' my brain started ticking
over thinking it actually meant something like 'hiring' mode - sort of a 'kiosk' scope.
Maybe add a coin slot :-)

[EEVblog]

@philbx1 Corrected for less confusion :->

[Afrotechmods]

Do you happen to know more detail on the algorithm the scope uses for "normal" and "hi res" mode?

[Desmaad]

@EEVblog Not to mention toasting your motherboard if you try to measure anything over 0.5v

[Gameboygenius]

@philbx1 It's clear that the oscilloscope is an employer which hires a mode to the job for it.
...
Also, hi-res works otherwise.

[globaltech]

how much the price ??, nice scope ..i like it ..

[superheaton]

This is such a nice scope. One day I will get it haha.

[neutron]

Would you still recommend this family of scopes? i am looking to get a 4 channel (doesnt have to be over 100mhz) maybe with 8 bit digital later. (yeah software unlock..bleagh)

[EEVblog]

@KeithWasHere1 Typical PC based scope based on the sound card. Fine for some basic audio level work, useless for everything else.