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First picture on EEVblog of the new R&S MXO4 series oscilloscope :)

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pdenisowski:
The 18 short (~1 minute) videos showing different features of the MXO4 are now live on the Rohde and Schwarz YouTube channel

https://www.youtube.com/user/RohdeundSchwarz/videos

Messtechniker:
Pity that the input BNCs on the MXO4 are not colour coded like on my R&S HMO1022.
Here LEDs next to the BNCs are used to colour code the active channels. Very useful IMO.

Moreover, on the MXO4 the channels are abbreviated as C1 ... C4
instead of the more usual CH1...CH4.

For us audio types it would be nice to know - just as a matter of interest - the true
distortion level of both generator and scope at 1 kHz.

The specs say: <0.1 % (-60dB) below 10 MHz. I expect the MXO4 to be much
better than that at 1 kHz.

Also a pity, that I do not have a use case for the MXO44 or even a MXO42 (+ generator option)
should a two channel version ever become available. Even a two channel MSOX4 with generator
option will probably be well over 5k Euros. Oh well. :scared:

My HMO1022 can do everything I need and also much more. :-+

Toddles off to read more about this beast  :)

egonotto:

--- Quote from: pdenisowski on September 30, 2022, 12:50:42 pm ---The 18 short (~1 minute) videos showing different features of the MXO4 are now live on the Rohde and Schwarz YouTube channel

https://www.youtube.com/user/RohdeundSchwarz/videos

--- End quote ---

Hello pdenisowski,

in the thread:
"https://www.eevblog.com/forum/testgear/rigol-hdo1000-and-hdo4000-12bit-oscilloscopes-launched-in-china/" we want to analyze and compare the noise behavior of different 12 bit scopes in more detail.
It would be interesting if we also got data of the new impressive MXO 4.
Eight traces would be useful for this:

Maybe you should not use the first channel, because with my RTA4000 the display there also disturbs something.

All 8 measurements with 400 Mpoints (or 800 Mpoints) memory and 5 GSa/s sampling rate and open inputs:

1 mV/div 50 Ohm maximum bandwidth (200 MHz)
1 mV/div 50 Ohm 20 MHz bandwidth
1 mV/div 1 MOhm maximum bandwidth (200 MHz)
1 mV/div 1 MOhm 20 MHz bandwidth

1 V/div 50 Ohm maximum bandwidth (200 MHz)
1 V/div 50 Ohm 20 MHz bandwidth
1 V/div 1 MOhm maximum bandwidth (200 MHz)
1 V/div 1 MOhm 20 MHz bandwidth

Thanks in advance.

Best regards
egonotto

PS: In datasheet page 7
"Memory depth
 standard                       400 Mpoints with 4 active channel (single),
                                     400 Mpoints with 2 active channel (run)
R&S®MXO4-B108 option
                                     800 Mpoints with 2 active channel (single),
                                     800 Mpoints with 1 active channel (run)
"

Is this correct? I would guess that the memory is larger with 2 channels than with 4 channels with (single).

Is there is more detailed information on "The maximum available memory depth depends on the bit depth of the acquired data and, therefore, on the settings of the acquisition system, such as
decimation mode, waveform arithmetic or high definition mode"

jjoonathan:
Not a 12 bit scope, but I took the same measurements on my 8 bit RTO with 20MHz and 200MHz HD filters:

https://www.dropbox.com/sh/e00tn9mtlpsd6gx/AABKMUdwkqgnRjF2VQDP6k_Oa?dl=0

(all traces are 10GS/s with filters to reduce bandwidth and improve vertical resolution)

Back-of-the-envelope says it starts at ENOB 7, the filters chop noise bandwidth by 20x, so ideally another ~2 bits and ENOB around 9, which is where most 12 bit scopes seem to land anyway. I'd love to see the apples-to-apples comparison of what it actually achieves, though -- I suspect the ENOB figures on the 12 bit scopes might be suffering from some kind of worst case and that the 3 least significant bits aren't typically complete rubbish.

balnazzar:

--- Quote from: Fungus on September 29, 2022, 09:59:53 am ---I hate the shiny screen though, so...  :-//

--- End quote ---

Buy a tablet matte screen protector. Then cut it.

They are made with different levels of "matteness".

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