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Sniffing the Rigol's internal I2C bus

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asrc1978:
Thank you AndersAnd!

stuartk:

--- Quote ---On the other hand I receive and aswer from Rigol China in that they explain that the difference between DS2xxx non A and DS2xxxA is the selectable input impedance between 1Mohms and 50ohms.
--- End quote ---

Yes that's true. The A version has the 50 ohm hardware installed on the board, the non-A version does not. The menu should show 1meg only option which if I remember is greyed out

BTW, I don't think that you should have the 100Mhz BW and 200mhz BW options installed together with the 300Mhz. It probably happened if you installed one key after another. Check  and see if you minimum timebase goes down to 1ns. The 100mhz option goes to 5ns and the 200Mhz option goes to 2ns.

Regards,

Stuart

asrc1978:

--- Quote from: stuartk on February 14, 2014, 05:23:44 pm ---
--- Quote ---On the other hand I receive and aswer from Rigol China in that they explain that the difference between DS2xxx non A and DS2xxxA is the selectable input impedance between 1Mohms and 50ohms.
--- End quote ---

Yes that's true. The A version has the 50 ohm hardware installed on the board, the non-A version does not. The menu should show 1meg only option which if I remember is greyed out

BTW, I don't think that you should have the 100Mhz BW and 200mhz BW options installed together with the 300Mhz. It probably happened if you installed one key after another. Check  and see if you minimum timebase goes down to 1ns. The 100mhz option goes to 5ns and the 200Mhz option goes to 2ns.

Regards,

Stuart

--- End quote ---

Hi Stuart,

Below you find that the timebase can achieve 1ns. Can you recommend to me to change the licence key to try to change the "Installed Options" showing only BTW 300MHz?

Thanks by your help.

BR,

Seba.

asrc1978:
Hi Everybody,

Anyone ever could uninstall options?

For example, in the picture you will see:

BANDWIDTH    100M BandWidth  Official Version
                       200M BandWidth  Official Version
                       300M BandWidth  Official Version

Thanks again by your help!

BR,

Seba.

stuartk:
I had a similar situation and I elected to uninstall my keys using  the SCPI command " :SYSTem:OPTion:UNINSTall
And then did a fresh instal with DSGH for 300 MHz with all options except 50 ohm

Unfortunately I lost my serial number in the process.....

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