Products > Test Equipment
REVIEW - Rigol DS2072 - First Impressions of the DS2000 series from Rigol
marmad:
Following up on some info discovered about the DS2000 in another thread, I thought I'd post the info here in an effort to inform owners who hadn't seen it there.
The DS2000 series appears to have trigger jitter/offset in the Zoomed trace while at lower sample rates (in Delayed Sweep mode). It appears to follow this pattern:
When in Delayed Sweep mode:
Sample rate >= 1GSa/s: no conspicuous jitter or offset
Sample rate <= 500Ms/s: jitter and/or offset equal to a maximum of plus or minus one sample period
So for example, @ 200MSa/s it's equal to ±5n, while @ 10MSa/s it's equal to ±100ns.
I'm not sure yet if this is a firmware issue or not (these tests are from the latest FW version). If someone has a chance to test a lower FW version, please post the results here.
Here is an example of jitter @ 100MSa/s (i.e. ±10ns) in Delayed Sweep:
Rigol's response to this 'issue' is here.
sync:
FYI the DS1000Z has that jitter too.
Wim13:
Has all to do with phase differences..
If you synchro the clock rate off the DSO with signal generator it stands still.
Carrington:
LOL... The DS2000 and the average of everything that shakes.
Normal:
Average:
This also has to do with phase, in this case phase trigger/signal. Playing with holdoff, can be corrected.
I think that David L. Jones has a video about something similar.
marmad:
--- Quote from: sync on November 29, 2013, 02:54:52 pm ---FYI the DS1000Z has that jitter too.
--- End quote ---
Thanks for the info, sync.
--- Quote from: Wim13 on November 29, 2013, 03:03:25 pm ---
Has all to do with phase differences..
If you synchro the clock rate off the DSO with signal generator it stands still.
--- End quote ---
Hey Wim - good to see a post from you :)
Phase difference between what, exactly? Between the sample rate and the delayed sweep rate?
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version