![Grin ;D](https://www.eevblog.com/forum/Smileys/default/xgrin.gif.pagespeed.ic.QVVz6XIT20.png)
Wonky hi-res, hmm.
Thought about the "non-functional" hi-res mode…
What Do I expect from - Cleaner filtered waveforms.
What don´t happen if You choose the hi-res mode on the 5000 ?
Right, nothing:
![](https://s15.directupload.net/images/190301/temp/t8hyx5hr.png)
Normal Mode
![](https://s17.directupload.net/images/190301/temp/q3cyorq5.png)
Hi-Res Mode
But look now, If the memory depth are decreased to it´s minimum of 1k :
![](https://s16.directupload.net/images/190301/temp/k7vlehll.png)
Normal Mode
![](https://s16.directupload.net/images/190301/temp/rtdacdlo.png)
Hi-Res Mode
A-ha....Bandwith limited.
Seems, hi-res does exists but somehow "wrong"....or too less.
Test: A PWM-Signal with 400Hz sinewave modulation - If you reduce the memdepth in hi-res / enhanced Resolution mode, the scope displays the sinewave because of the limited BW.
![](https://s16.directupload.net/images/190301/temp/x7ln8gsa.png)
PWM signal in normal mode
And now, in hi-res mode:
![](https://s15.directupload.net/images/190301/temp/s559odpi.png)
Tadaa....a sinewave
![Wink ;)](https://www.eevblog.com/forum/Smileys/default/xwink.gif.pagespeed.ic.cldandycH0.png)
The hi-res mode is active on the 5000, but somehow too "weak".
I got a idea and grab the lecroy ws3024 - it has (of course) a hi-res mode called "enhanced resolution" (siglent also).
Same settings but you can choose number of bits adding in 0.5 bit steps.
And this is what I from the lecroy get:
![](https://s16.directupload.net/images/190301/temp/mplqmlgy.jpg)
Nearly the same....
And now, again the lecroy:
![](https://s17.directupload.net/images/190301/temp/zr7l56mx.jpg)
Bingo, a nice sinewave....
![Cool 8)](https://www.eevblog.com/forum/Smileys/default/xcool.gif.pagespeed.ic.cOxV6sPNRd.png)
What have I done ? Right, the full resolution taken, in this case +3bit, the lecroy works then with 8+3bits - this is the hi-res mode.
So what does it means...
It seems, the rigol add max. 1.5bits only - and NOT 4bits as mentioned in the changes of the firmware ("12bit resolution").
I guess, that´s the reason for seeing nearly nothing changing in hi-res mode.
Martin
Edit : Another example, a pfc-current via 1ohm resistor, quiet noisy….
MSO 5000, Normal Mode:
![](https://s15.directupload.net/images/190301/temp/xl5hbqip.jpg)
Hi-Res Mode:
![](https://s17.directupload.net/images/190301/temp/3bi28xx5.jpg)
Same Signal, but now the siglent sds :
Normal Mode:
![](https://s17.directupload.net/images/190301/temp/nuvvxvak.jpg)
Hi-Res Mode (+3bits) :
![](https://s16.directupload.net/images/190301/temp/nmggmo2j.jpg)
THIS is what I expect from a hi-res mode….