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| Sniffing the Rigol's internal I2C bus |
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| linux-works:
did you do the same test before the upgrade? can the scope be reverted and then put back again, for a/b testing? I should have done measurements before I did the upgrade. damn. sorry, just didn't think it would be new info so I only visually looked at things before and after rather than writing down actual 3db levels. |
| Wim13:
Yes , you can uninstall the options, ( via SCPI) and No , i dont have measured data before upgrade, will see next week if i can get any. The counter has an other bug, put the DS1000 on AC trigger, and the counter wont work after >50 Mhz..!? |
| seronday:
The Frequency Response plot for un-modified DS1074Z is here. https://www.eevblog.com/forum/testgear/rigol-ds1074z-inside-picture/msg337710/#msg337710 |
| Wim13:
--- Quote from: seronday on May 19, 2014, 12:35:06 am ---The Frequency Response plot for un-modified DS1074Z is here. https://www.eevblog.com/forum/testgear/rigol-ds1074z-inside-picture/msg337710/#msg337710 --- End quote --- That makes the 1104, + 1 dB better over the whole range. It is good to see that this + 1 dB is on all measured points for the 1104 compared to the chart mentioned. |
| mrflibble:
--- Quote from: Wim13 on May 19, 2014, 05:17:35 pm ---That makes the 1104, + 1 dB better over the whole range. It is good to see that this + 1 dB is on all measured points for the 1104 compared to the chart mentioned. --- End quote --- Indeed. Same difference on all points makes it much easier to root out systematic error. ;D |
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