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

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devitrify:
Marmad and Teneyes

From both of your posts, I have a much better idea of what is going on now .  The Agilent video was especially helpful to me in clearly showing the difference between the basic methods of "averaging" samples and "high resolution mode", and I understand most of your discussion and supporting docs.

Thanks!

Galaxyrise:

--- Quote from: marmad on June 13, 2013, 07:43:16 pm ---(Again, this is something being done ON sample memory in it's transformation to display memory (and the screen). You won't be able to save this except as the 1400 bytes of display memory.) = I'm not sure about this, as explained by my edit below.

--- End quote ---
It matches my experiences outlined earlier in this thread. The scope retains the original 8-bit values in sample memory and can switch between high-res and normal without acquiring a new waveform.  Anti-Alias also seems to be done during transformation from sample to display.

marmad:

--- Quote from: Galaxyrise on June 13, 2013, 10:18:01 pm ---It matches my experiences outlined earlier in this thread. The scope retains the original 8-bit values in sample memory and can switch between high-res and normal without acquiring a new waveform.  Anti-Alias also seems to be done during transformation from sample to display.

--- End quote ---

Yes, you can notice the effect of High-Res averaging (and reducing) the sample points quite vividly when stopped and in Dot display. Attached are two images at 200ns; while switching between Normal and High-Res modes.

It works while stopped to 100ns/div - and then, at 50ns/div, there is no noticeable change in the sample points when switching modes - and then, at <= 20ns/div, High-Res actually starts adding extra sample points (like interpolation) - shown in the second set of images.

bluesmoke:
Hello all... going to take the plunge on a DS2072. Looks like the only place in the US to get a good deal is Tequipment but they are out of stock. Did anyone recently place an order and how quickly did they get the scope?  New to electronics.. but it seems this is a good starting scope to play around with. I have a Tek 465b but I guess I won't use that much when I get my hands on the Rigol. Seems a great group of people here!
Dave

marmad:

--- Quote from: bluesmoke on June 14, 2013, 04:56:46 am ---Hello all... going to take the plunge on a DS2072. Looks like the only place in the US to get a good deal is Tequipment but they are out of stock. Did anyone recently place an order and how quickly did they get the scope?

--- End quote ---

Welcome, Dave! Yes, there seems to be a shortage of DS2072s everywhere, which seems to be a bit of an error in Rigol's planning. I suppose they have been tooling up for the switch to -S models and they didn't anticipate the recent uptick in demand.

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