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MSO1000s vs MSO2000s

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FrankT:
Just a quick question about the Rigol MSO1000 series vs MSO2000 series.

The MSO1000 series has 4 analog channels, 16 digital channels, at 1GS/s, while
the MSO2000 series has 2 analog channels, 16 digitial channes, at 2GS/s.

But the MSO2000 is a lot more expensive MSO-1074Z $AU943, vs $1380, where I usually see 4 channel scopes costing more.

Is the 2GS/s over 1GS/s worth that much more $ or are there other significant differences I am missing?

MarcelM:
Hello FrankT,

Some points to consider:

MSO2000A : 1 channel @ 2Gs/s
                   2 channels @ 1Gs/s

MSO1000   : 1 channel @ 1Gs/s
                   2 channels @ 500Ms/s
            3 or 4 channels @ 250Ms/s

So for me, the sample speed of the 2000 series is double that of te 1000 series, and once you start using those extra two channels on the 1000, the usable bandwidth drops significantly.

If you're like me, the 16 digital channels on the MSO severly limit the number of times I need more than 2 analog channels...

YMMV,

Just my €0,02

Cheers,
Marcel

mjkuwp:
I have seen written elsewhere that the MSO2XXX series has a real-time clock and the other does not.  For me this would be a big difference because I would like to know the actual time at which I took data.  however, for others this may not matter at all.

I have not seen this explicitly laid out in Rigol literature so it is yet to be confirmed.

FrankT:

--- Quote from: MarcelM on July 13, 2014, 11:53:17 pm ---If you're like me, the 16 digital channels on the MSO severly limit the number of times I need more than 2 analog channels...

--- End quote ---

Thanks, you did read my mind.

I want to upgrade my existing USB scope which has 2 analog channels and 16 digital, but a pitiful 64k of sample memory and 80MS/s.  It is the small memory that is giving me grief.

I need to try and remember whether I've been limited by analog channels, or sample rate.

David Hess:

--- Quote from: MarcelM on July 13, 2014, 11:53:17 pm ---So for me, the sample speed of the 2000 series is double that of te 1000 series, and once you start using those extra two channels on the 1000, the usable bandwidth drops significantly.

--- End quote ---

Do these oscilloscopes support equivalent time sampling?  It is not always clear from their documentation.  I would hope the bandwidth is independent of sample rate.

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