Products > Test Equipment
REVIEW - Rigol DS2072 - First Impressions of the DS2000 series from Rigol
Wim13:
About the AC and DC trigger...
@Teneyes:
Connected to ch 2 the trigger output to see what happens to the trigger signal
The input signal on both pictures is the same, that did not change.
See also the change in the freq. counter..
Strange effect, on AC the trigger output become more stable, picture 1
and on DC the source signal is more stable, picture 2
This is very strange behavior...
Teneyes:
--- Quote from: Wim13 on July 03, 2013, 05:41:16 pm ---About the AC and DC trigger...
The input signal on both pictures is the same, that did not change.
See also the change in the freq. counter..
Strange effect, on AC the trigger output become more stable, picture 1
and on DC the source signal is more stable, picture 2
This is very strange behavior...
--- End quote ---
We already Know there is Jitter on the Trigger Output (and delay)
I am guessing:
In DC mode to make the Display stable and program is placing it correctly
but allows the Trigger output to Vary
In AC mode the Display Has some jitter and the Trigger output has some jitter,
a different program
I think, if you added the 2 jitter amounts of the AC mode you we be close to the DC trigger out Jitter. Maybe capture each single frame to check
Oh Oh, so if they Fix the DC trigger out Jitter we get Display Jitter
I hope it is not Hardware,
but it is Hi speed Interrupt program instruction timing to figure out
Oh Yes in AC the Counter is using the trigger, so if Trigger level is too high there is No Counter Freq.(<15)
PS if you notice the Blog is shorter, as I have deleted my BAD guesses and small talk
Carrington:
--- Quote from: Teneyes on July 03, 2013, 06:42:48 pm ---
I hope it is not Hardware,
--- End quote ---
What? :wtf:
Shortly after buying my SDS8102V was discovered the noise problem (HW).
And now that I've bought a DS2072 if it appears that also has a hardware fault then ... :o :rant: |O
Wim13:
Maybe hardware..we dont know ...and:
Well we are using these DSO for months now, and nobody has ever tried AC trigger mode ...
so it seems not to be a real problem...
EV:
--- Quote from: Wim13 on July 03, 2013, 07:26:16 pm ---so it seems not to be a real problem...
--- End quote ---
It is a bug, but not very serious if not found earlier.
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