Products > Test Equipment
Sniffing the Rigol's internal I2C bus
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NikWing:
the shop where I ordered mine still says shipping time "1 week" -_-;
I hope they'll ship it THIS week ...
marmad:

--- Quote from: EV on December 15, 2013, 10:28:37 am ---It is a little over 300 MHz measured with HP 8642A generator with BNC cable and 50 Ohm feed through terminator. Scope is DS2202 wiith HW1 and 300M option.

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.

--- End quote ---

Thanks, EV! So it appears 300MHz BW option is functional for HW v.1 owners. I wonder why Rigol didn't sell 300MHz DS2000s from the beginning?
EV:
Maybe it is too near to 300 MHz as for example it is about 240 MHz for DS2202 with  200 MHz BW.


--- Quote from: marmad on December 16, 2013, 12:38:05 pm ---Thanks, EV! So it appears 300MHz BW option is functional for HW v.1 owners. I wonder why Rigol didn't sell 300MHz DS2000s from the beginning?

--- End quote ---
marmad:

--- Quote from: EV on December 16, 2013, 01:04:44 pm ---Maybe it is too near to 300 MHz as for example it is about 240 MHz for DS2202 with  200 MHz BW.

--- End quote ---

True - perhaps it's closer to 350MHz on HW v.2 DSOs. Anyway, as long as you know the limits...

@EV: BTW, did you run the self-calibration after installing the 300MHz option (or before running the sweep)?
EV:
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 ---
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