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Rigol MSO 5000 hardware/software revisions
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Cerebus:

--- Quote from: sb42 on March 16, 2020, 10:03:28 pm ---Not too impressed with those noise levels, Rigol :--

--- End quote ---

16-17 nV/√Hz - not exemplary, but not awful either.
NoisyBoy:
Hi all, an interesting finding to share with you.

If you follow the readme file in the latest 02.03 firmware Rigol released quickly after 02.02, probably there is little to no reason for doing another upgrade for most users.  However, I found the 02.03 update fixes a couple issues that are not documented in the readme file:

1. At least in my case, it fixes the problem with Auto randomly turning on channel that have nothing attached.  I have seen channel 2 (rarely), and channel 3 (almost always) turning on and display traces of noise.  Self-cal does not help, but after applying the fix, the problem is gone.  I have not been able to recreate it, when I press Auto, channels without input no longer comes on.

2. As sb42 had shared, when you press Auto, you sometimes get an intermediate image of other channels flashing on the screen for a moment, before it settles on the final screen.  This problem is also gone, there is no momentary flashing of random channels.

These are important fixes for the new bug introduced in 02.02, but unfortunately in Rigol fashion, the fix documentation did not fully describe what it fixes. 

I hope you will find this tip useful, and perhaps more owners can test it out so we have more than a sample of 1.

And a big thank you for mabl for pointing out the change in the FPGA and appEntry, his effort prompted me to test out the 02.03 firmware even though Rigol did not mention these hidden fixes.

Good luck and stay healthy.
Gandalf_Sr:
So, are you saying that 02.03 is stable and fixes many issues?
NoisyBoy:
Seem to be stable so far, at least not having the obvious bug in 02.02 that was in-your-face 2 min after upgrade.  Remember it is a Rigol, stability is all relative. 
kehall:
Have they done anything with XY mode and the huge square block to represent a point in the signal in this 02.03 firmware?

Not sure it's really 'noise' as such - as even on 100V/div on 10:1 will show a square around 40% of a graticule division (20V noise surely not right?!) :(

Doesn't seem to be any way to get a reasonable display - colour grading or intensity change doesn't do anything either..

Talking of intensity/grading on waveforms in general YT mode, it'd be nice to be able to adjust intensity for a graded option to fade out the less frequent 'noisy' components to crisp up the waveform, perhaps as a variation on the colour grading instead of changing colour, change brightness of the pixels.
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