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REVIEW - Rigol DS2072 - First Impressions of the DS2000 series from Rigol

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marmad:

--- Quote from: Galaxyrise on December 07, 2013, 05:36:09 am ---Ooo, did they fix high res in roll mode? It had the same problem.

--- End quote ---

I just checked - and since I never noticed that before, I'm not sure. It seems OK to me: switching in and out of High Res appears to be the same intensity - but you'd be able to tell better than me (using whatever conditions you used before).

But honestly, I can't imagine often needing that combination of features. When in Roll mode and IF using High Res, your -3 dB bandwidths are approximately the following:

200ms = 343Hz
500ms = 171Hz
1s    = 68.6Hz
2s    = 34.3Hz
5s    = 17.1Hz
10s   = 6.8Hz
20s   = 3.4Hz
50s   = 1.7Hz
100s  = 0.68Hz
200s  = 0.34Hz
500s  = 0.17Hz
1000s = 0.06Hz

Electro Fan:
I'm not sure if this helps sort anything out, but here are 2 images from the DS1000Z and some from the DS2000 showing an attempt at comparing intensity grading.  These were from a BK Precision function generator producing some modulated signals.

EF

(Not sure why the DS2 images open from a browser and the DS1Z don't, but the DS1Z images do seem to open in Microsoft Office Picture Manager.)

marmad:

--- Quote from: Electro Fan on December 07, 2013, 11:06:08 pm ---I'm not sure if this helps sort anything out, but here are 2 images from the DS1000Z and 2 from the DS2000 showing an attempt at comparing intensity grading.

--- End quote ---

I don't know how the DS1000Z functions, but the DS2000 get's a wider range of grades as you turn the intensity down - although many of those grades are dark grades. The brighter the overall intensity is - the less grades the DS2000 uses to reproduce the waveforms. I think 30-40% is probably the best trade-off.

Electro Fan:
I posted 4 more above at 0, 20, 40, and 60% intensity for comparison

Electro Fan:
Here are some intensity graded images DS1104Z and a DS2072, along with an image from a Tektronix analog scope
- not sure why the DSOs don't look a little better?
---
I added 1 more with the DS1104Z cranked up on the intensity to 71%; maybe better?
---
also added 1 more showing DS2000 being fed by function generator with signal slightly less modulated; there is a point at which as more modulation is added the waveform becomes visibly more "striated" (and less striated as modulate is decreased)

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