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Sniffing the Rigol's internal I2C bus

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Strada916:
Many thanks to the people that made this happen. Learning all the time. DS1074ZS to DS1104ZS.

linux-works:
yes, the model # changes but this does NOT make the scope work any faster.  the bw is still the same, from what I've seen.

I know my sig gen is flat to 250mhz and so doing a test at the 100mhz level is pretty trustworthy.  I just did not see any diff in cutoff from before and after the upgrade.  model # did change, no argument there, but it was a 70mhz scope before and its still a 70mhz scope, now.

Strada916:

--- Quote from: linux-works on May 18, 2014, 04:08:16 pm ---yes, the model # changes but this does NOT make the scope work any faster.  the bw is still the same, from what I've seen.

I know my sig gen is flat to 250mhz and so doing a test at the 100mhz level is pretty trustworthy.  I just did not see any diff in cutoff from before and after the upgrade.  model # did change, no argument there, but it was a 70mhz scope before and its still a 70mhz scope, now.

--- End quote ---

Thanks. I was more after the other options anyways. But thanks

linux-works:
same here.  I bought the 4ch scope for its proto decode, storage and views.  70 to 100mhz means nothing, especially since I was able to see waveforms at 250mhz very easily.

Orange:
I have an original DS1104Z, and the B/W is about 125MHz (-3dB). The build in hardware counter works OK till 110Mhz, if you go higher it gives unreliable results.

Perhaps RIGOL has done some other limiting to prevent B/W upgrades on the 70MHz model.....

I still think this is an amazing piece of test gear for the money....especially if you add the triggers, decoding and memory options :)

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