| Products > Test Equipment |
| Sniffing the Rigol's internal I2C bus |
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| Carrington:
At least the transistors seem to be the same. But the compensation stage is certainly different. Note: I refer to the previous image. @ Marmad.: You know if there are different 1.0 versions? For example HW.v.: 1.0.1.0.0 / 1.0.0.0.0 / 1.0.1.0.1 ... |
| EV:
Ok, I run the self calibration and new sweep. Maybe there is a small improvement. BW seems to be now about 310 MHz. In the picture is sweep from 1 MHz to 350 MHz. Sweep time is 14 s, so one horisontal craticule division is 25 MHz. Cursor lines show the 3 dB levels. --- Quote from: EV on December 16, 2013, 02:14:57 pm ---No, I run the calibration and then the sweep again. Wait a moment! --- Quote from: marmad on December 16, 2013, 02:02:00 pm ---@EV: BTW, did you run the self-calibration after installing the 300MHz option (or before running the sweep)? --- End quote --- --- End quote --- |
| EV:
The true 50 Ohm input is propably better than this feed through terminator. --- Quote from: marmad on December 16, 2013, 02:31:21 pm --- Then it seems even more illogical that they didn't sell a 300MHz version DS2000 a year and a half ago - unless it was only because of the lack of 50 Ohm input. --- End quote --- |
| Carrington:
--- Quote from: EV on December 16, 2013, 03:06:27 pm ---The true 50 Ohm input is propably better than this feed through terminator. --- End quote --- I've always thought the opposite. |
| Carrington:
Inverted -> after calibrated. Where is the difference in BW? :-// |
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