Author Topic: New Rigol DS1054Z oscilloscope  (Read 1471875 times)

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Offline bd139

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Re: New Rigol DS1054Z oscilloscope
« Reply #4500 on: September 11, 2019, 07:22:20 am »
On age degradation the only thing that worries me is the crappy feet. They feel like they’re going to die first.
 

Online BravoV

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Re: New Rigol DS1054Z oscilloscope
« Reply #4501 on: September 11, 2019, 07:33:02 am »
On age degradation the only thing that worries me is the crappy feet. They feel like they’re going to die first.

Ditto, every times I lift it to pull both front feet, had the feeling that one day the plastic will rot and becoming so brittle, and finally snapped.

Offline borjam

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Re: New Rigol DS1054Z oscilloscope
« Reply #4502 on: September 11, 2019, 07:39:45 am »
The problem cannot be interpolation when there is nothing to interpolate.  1 GS/s on the Rigol is a point every nanosecond so unless the Rigol is mangling the original sample points, there should be no problem.

There's often mentions around here that the rigol's displayed 'dots' are interpolated, I dunno meself.
https://www.eevblog.com/forum/testgear/rigol-ds1054z-vs-siglent-sds1202x-e/msg2483973/#msg2483973

Yes. At least in my opinion it's a bit confusing.
 

Offline Fungus

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Re: New Rigol DS1054Z oscilloscope
« Reply #4503 on: September 11, 2019, 10:15:42 am »
Just to put some oil in the fire, here is the same signal, same Tek probe, but seen with 1.5GHz 8GS/s HP infinium. So compared to the rigol, we see a peak at the beginning of each pulse, where this peak is observed i.e. after the front. On rigol is at the end of the pulse - before the front. Any explanation? Bad interpolation?

The problem cannot be interpolation when there is nothing to interpolate.  1 GS/s on the Rigol is a point every nanosecond so unless the Rigol is mangling the original sample points, there should be no problem.

Even if it was mangling the points you'd only notice the mangling with more than two channels on. The difference would be close to zero at 1GS/s.
 


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