Products > Test Equipment

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

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Galaxyrise:

--- Quote from: marmad on July 12, 2013, 03:51:29 pm ---This seems oddly reminiscent of trying to convince you that Rigol's High-Res mode produces the same results as everyone else.

--- End quote ---
I'm probably just inviting more abuse onto myself, but the Rigol High-Res mode is so different from what I expected that I am curious to see comparisons.

How do other scopes (especially the Agilent) handle a 40mVpp 100kHz sine wave at 1ms/div 10mV/div?  Both max memory depth and 1MSa/s.

Here's the Rigol images for comparison:

Teneyes:

--- Quote from: GermanMarkus on July 13, 2013, 01:04:39 pm ---I encountered a mysterious issue when serial decoding a well known 57600 baud serial datastream. The encoding showed me some wrong characters and so I thought maybe the oscillator of the selfmade sending µcontroller device is out of spec. and I tried the "user selectable" baudrate on the DS2072 and at first I used the same baudrate there too, that's 57600. And - I don't know why - when I switched to the user defined baudrate with exactely the same baudrate (57600) the decoding was perfect :)! So there seems to be an internal difference between the STANDARD 57600 baud decoding and the USERDEFINED 57600 baud decoding in the DS2072.  Does anybody have any idea or could verify this issue on his Rigol DSO.

--- End quote ---

Yes, working with Markus,we have confirmed this Bug, isolated it
and we have reported it to Rigol support (add to Bug List??)

Display 1  Shows when the baud rate set by USER=57600 it operates correctly
           There are 13 x  8 bit data  displayed across the display with the baud rate set 

Display 2  Shows when the baud rate set by Rigol=57600 it operates Incorrectly
           Now the only change is the switch from User to Rigol fix Baud rate
           There are Only 9 x  8 bit data blocks displayed across the display
           There are errors of missed data
            Pan right to see setup --->

Display 3  Shows how when the baud rate set by Rigol = 38800 it operates correctly

Display 4  Shows how when the baud rate set by Rigol = 115200 it operates correctly
       

Wim13:
Showing the baudrate issue , on a different way,

Picture 1, 9600 bd. 1 start bit and 1 stop bit no parity,

scoop on 104 uSec per div is the same as 1 bit per division,
so you can see that the decode (green ) block is 8 bits long, 8 divisions long.


Picture 2, 57600 bd set by user,

scoop on 17.4 uSec, the same again , 1bit per division
set for  8 bits, the green block decodes 8 bits in 8 divisions.


Picture 3, 57600 bd set by Rigol,

scoop still on 17.4 uSec, 1 bit per division
now you see that the green decode block has changed in size... .....
which ofcourse is not correct.

CodyShaw:

--- Quote from: cthree on July 16, 2013, 04:04:38 am ---It's unfortunate that all of this discussion of the 2000 series scopes is contained in a single 104 page thread.

--- End quote ---

Why? I think this whole thread is quite constructive!

In other news, my 2072 just got past US-->Canada customs last night. I hope it comes soon!

zibadun:

--- Quote from: CodyShaw on July 16, 2013, 08:07:55 pm ---
--- Quote from: cthree on July 16, 2013, 04:04:38 am ---It's unfortunate that all of this discussion of the 2000 series scopes is contained in a single 104 page thread.

--- End quote ---

Why? I think this whole thread is quite constructive!

In other news, my 2072 just got past US-->Canada customs last night. I hope it comes soon!

--- End quote ---

it's a problem if you are not following every post. You can miss a block of good posts forever. Or if you are a new user, it's so hard to skim through the entire thread.   happens on other forums also..   I wonder if there is an efficient way to process all this info.  May be the most informative comments should be flagged somehow by readers to make them easier to find. 

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