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First picture on EEVblog of the new R&S MXO4 series oscilloscope :)
BU508A:
--- Quote from: bozidarms on February 11, 2023, 07:50:41 am ---
--- Quote ---Software is complicated no matter what country it's written in. I'm sure there's horror stories from every single brand.
I'd even believe that the more expensive something is, the more places there are to screw up the design. Cutting edge is cutting edge.
No product manager these days is ever going to say "let's just use it internally for another six months and see if any bugs turn up".
--- End quote ---
I don't quite understand the logic behind that statement, but as long as the potential buyer is willing to accept it, i have no problem with that.
I personally would never do anything like that, or when I buy a great, expensive product (car, TV set...), i expect from the beginning everything to work perfectly (drive easily, perfect picture...).
Don't see any reason why would be different with measuring equipment.
--- End quote ---
May I introduce you to the theory of complexity?
In essence: the more complex a system is, the more likely is that it has errors and/or flaws in it.
It all depends on your definition of "working perfectly" and how high you are setting the level.
bozidarms:
--- Quote ---May I introduce you to the theory of complexity?
--- End quote ---
OK, many thanks, finally i got it - so, if I buy something complex and expensive then it is completely wrong to expect that this device should work properly, because the more complex a system is, the more likely is that it has errors and/or flaws in it. :-+ :-+ :-+
Really interesting way of thinking and perfect excuse for work which is only partially done.
If i would think that way at my job, than i would have a lot of free time ::)
--- Quote ---Maybe your weren't alive when Tek had the famous TDS200 worldwide recall ?
--- End quote ---
Ha ha, I was alive at that time (guess i am your age), only not so interested in electronics.
maxwell3e10:
Somehow people cut much more slack for software than hardware errors. Remember how much bad press Intel got for a division bug in Pentiums. But software and firmware bugs are totally accepted. I wouldn't say that software is intrinsically more complicated than designing and making a big processor. Yet hardware gets more and more powerful while software gets more and more bloated while still having mostly the same functionality.
More relevant to this thread, we need to compare oscilloscope noise spectra because rms noise does not tell the whole story. For example, Lecroy HDO has better noise RMS numbers than Rigol HDO, yet Rigol has a better spectrum:
https://www.eevblog.com/forum/testgear/rigol-hdo1000-and-hdo4000-12bit-oscilloscopes-launched-in-china/msg4436329/#msg4436329
Also having a low noise level at low sensitivity vertical scale (like 1V/div) is the whole point of a high-resolution scope.
bozidarms:
maxwell3e10,
thanks for explanation.
Could you also comment why MXO4 as a HD (12 bit and more) system has DC gain accuracy of ±1 % full scale to ±1.5 % full scale, almost as 8 bit system (LeCroy HDO has 0,5%)?
maxwell3e10:
You would need to ask Rich. I am not sure if DC accuracy is something people focus on in an oscilloscope. It also depends on the details of the self-calibration procedure.
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