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

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JDubU:
I just installed it on my DS2072.
 
The extended System Info shows update to Software Version 00.03.06.00.00 with date of Jan 17 2019 but hardware and FPGA version numbers did not change from last firmware version 00.03.05.04.00 (dated Mar 7 2018).

egonotto:
Hello,

I don't know if somebody measure the rise and fall time of the trigger output of the DS2072.

Now I do a measure with the 1 GHz Agilent DSO6104L.

The rise time is about 600ps and the fall time is about 500ps.

I forgot:
The rise time of the DSO6104L itself is 350ps, so the true rise time of the trigger output is lower.
So the rise time is about 490ps and the fall time is about 360ps


Best regards
egonotto


artur0089:

--- Quote from: JDubU on February 01, 2019, 08:27:25 pm ---The extended System Info shows update to Software Version 00.03.06.00.00 with date of Jan 17 2019 but hardware and FPGA version numbers did not change from last firmware version 00.03.05.04.00 (dated Mar 7 2018).

--- End quote ---

erkko:

--- Quote from: luchog on August 05, 2016, 05:33:40 pm ---- When i turn it on most of the times show full screen noise and hangs, sometimes just hungs.

--- End quote ---

Not sure if its the same reason, but I had a period of same symptoms.

Additionally (after switching channels off and on again to get rid of noise) it often failed to see any signal in 1kHz testpoint. Even auto button failed in such situation. Crashed 90% of times when auto button was pressed. Ch2 off cleared ch1 trace also. Which returned many seconds later with noise again. Rarely also with clear trace...

Updates didnt change a thing. Clearing fram neither.

Until I noticed that it also forgot my measurements and switched on both channels on every reboot, although I clearly switched off ch2 every time...

That last one finally made me read some manual and what do you know - its a setting: Utility > System > Power on

I had set it at some point to "default". Perceiving it for some reason (without reading manual, just wandering around at menus) as that computer bios feature that restores power to the "last" state in case of power loss. So in that context, "last" sounded wrong.

Anyhow, now at "last", havent seen abnormal weird noise-like stuff on screen upon startup nor hangs for some time. Before it was always at most couple of restarts away.


PS. spoke too soon. Distorted noise-like stuff is back, hangs too. Seems to just occur less often, but it isnt gone.

robca:
I might be able to buy a used DS2072A. Currently asking $600 for it, but has not been sold for a long time, so might be open to a lower offer.

Considering the age, what would be a fair price for a DS2072A these days? I doubt I'll ever need more than 100MHz, so a DS1054Z (hacked to 100MHz) would work equally well and have 4 channels. But, then again, I rarely need more than 2 channels, and in cases where a lot of digital signals are needed, a logic probe works usually as well. So my main alternative would be a DS1054Z or an even cheaper used 2 channels Rigol

I see that once hacked, the DS2072A maintains the features. Is there a version of the firmware that does not allow hacking anymore? I'm sure it's in the thread, but I haven't had time to read thru the 113 pages yet, sorry

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