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DSO3000 Show Points

Question asked by donpelusa on Aug 2, 2007
Latest reply on Jan 18, 2008 by dnt

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I cant see dots on display.
I configure the instrument so that show me the dots and I see them connected dots.
It is a problem of firmware?
Which is the problem?

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dnt Aug 2, 2007 12:28 PM
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The current firmware revision is 4.2.10 soif you are not at this level
I recommend updating. If you can see vectors but not dots after
updating it is most likely an instrument failure.
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donpelusa Jan 16, 2008 7:55 AM
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i have many instruments DSO3000 and in all instruments present this problem. I have installed the firmware version 4.02.15
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dnt Jan 16, 2008 2:13 PM
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It seems as if the Interpolator is always on thus the Dots/Vectors
selection has no effect. I will submit this as a defect but don't expect
a fix from the manufacturer.
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dnt Jan 18, 2008 3:34 PM
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Actually there are points available but they are very hard to see.
I was able to see some points with the following setup:

A very fast edge square wave input
100 nsec/div
Display:Dots

Do a Single acquisition
Go to 20 nsec/div on the display
You should see Dots in the rising edge.

If the edge is fast ernough you can see dots at 1ms/div

Below 20nsec/div the interpolator will kick in.
Remember there are 1200 horizontal pixles so it will be hard to see
dots without significant vertical movement.
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DSO3000 Show Points

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