Products > Test Equipment
REVIEW - Rigol DS2072 - First Impressions of the DS2000 series from Rigol
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marmad:

--- Quote from: darrylp on July 06, 2013, 12:57:11 pm ---Have noticed from videos of people ds2xx2 that all earlier shipments come with switchable x1 x10 probes. Some people mention 350MHz bandwidth. Well my scope came with x10 non selectable , rigol info sheet says 300MHz bandwidth. Now I've got other probes for accessing the 500uV setting, but who else has the x10 only probes ?

--- End quote ---

The RP3300 x1/x10 switchable probes have been the standard included probes for the DS2000 series since they first started selling them. Where did you buy your DSO?

This is from the DS2000 User Manual:

Xyphro:
Hi!

I found a new bug while programming this here: http://www.xyphro.de/blog/index.php?entry=entry130705-223439

The DS2072 does not accept an INITIATE_CLEAR class command over the USB interface. This command is a required command according to the USBTMC specification. The Scope does not react at all to it, and the USB transfer times out.

Other USBTMC instruments like DS1052, Siglent SDG1020 respond well to this command.

Another thing I noticed - maybe already known and not a bug.
In 500uV/DIV mode, the scope is internally set to 1mV/DIV and the data scaled by a factor of 2. This can be noticed when reading out the waveform data. The LSB is always 0. This effectively reduces the ADC resolution by 1 bit / dynamic range.

Best regards,

Kai
alank2:

--- Quote from: Marc M. on July 06, 2013, 04:06:19 am ---I tried several times, first just the DSA9 key, then the DSAR followed by DSA9 keys but it still stayed a 2072
--- End quote ---

Is there a purpose in loading the DSAR first, then DSA9 second?
marmad:

--- Quote from: Xyphro on July 06, 2013, 09:08:01 pm ---Another thing I noticed - maybe already known and not a bug.
In 500uV/DIV mode, the scope is internally set to 1mV/DIV and the data scaled by a factor of 2. This can be noticed when reading out the waveform data. The LSB is always 0. This effectively reduces the ADC resolution by 1 bit / dynamic range.

--- End quote ---

The 500uV setting is NOT a scaled setting (manufacturers list this in the specs if it is - such as the Agilent X-Series) - but I'm not sure why the LSB is always 0 when you look at the display memory. In any case, it's not important - since it only has to do with the DSO screen - and the sample memory contains the real data, including the LSB.
Xyphro:

Are you sure?
I can also clearly see on the screen, that the signal is scaled. The steps are clearly visible and larger as compared to e.g. 1mV/DIV.
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