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Rigol HDO1000 and HDO4000 12bit oscilloscopes launched in China

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thm_w:

--- Quote from: lfldp on December 27, 2023, 04:01:17 pm ---Hello
Has anyone tested the 10mhz clock reference clock input in HD100x and does this port actually work as it should?
There were some problems with old rigol models reference input - https://www.eevblog.com/forum/testgear/help-with-rigol-ds4014e-on-10mhz-external-ref/
Regards

--- End quote ---

AUX out works - 60ns pulse of 1.5V into 50R
External trigger (+/- 5V max) works - though I had to change the trigger level before it started working
10MHz output works - spec is 1.5Vpp into 50R, saw 2.1Vpp
10MHz input works - spec is 130mVpp to 4.1V 10MHz +/- 10ppm. Input accepted +/-20ppm.

There is no on screen indication that EXT is working, just the setting to turn on and off EXT 10M in the "Other" menu.

lfldp:

--- Quote from: thm_w on December 28, 2023, 09:43:15 pm ---
--- Quote from: lfldp on December 27, 2023, 04:01:17 pm ---Hello
Has anyone tested the 10mhz clock reference clock input in HD100x and does this port actually work as it should?
There were some problems with old rigol models reference input - https://www.eevblog.com/forum/testgear/help-with-rigol-ds4014e-on-10mhz-external-ref/
Regards

--- End quote ---

AUX out works - 60ns pulse of 1.5V into 50R
External trigger (+/- 5V max) works - though I had to change the trigger level before it started working
10MHz output works - spec is 1.5Vpp into 50R, saw 2.1Vpp
10MHz input works - spec is 130mVpp to 4.1V 10MHz +/- 10ppm. Input accepted +/-20ppm.

There is no on screen indication that EXT is working, just the setting to turn on and off EXT 10M in the "Other" menu.

--- End quote ---
Ok thanks for info :)

egonotto:
Hello,

does anyone know if you can save the data in the memory that you got with Record?
My attempts have failed so far.

Best regards
egonotto

ebastler:
Based on what I see on the screen and also in the user manual, I'm afraid it is only possible to store "regular" waveform captures, but not the multiple frames which are captured in "Record" mode.

ebastler:
When I first saw the dual "FlexKnob" encoders on the various Rigol DHO models, I thought they were a brilliant idea. (Not Rigol's idea, I believe, but first introduced by KeysightTektronix?) With my old scope, far too much encoder-knob-clicking was required to iterate through different knob assignments, e.g, when controlling the cursors. Having two knobs, and having their function dynamically assigned by what you touch in the dialogs, seemed like a great UI feature.

Having used the knobs for a while on my new DHO1074, I am less excited now:

* Often, their step size is really odd. When setting e.g. the vertical scale and offset for FFT plots, you end up with awkward numbers on the axis. More often than not, it is not even possible to navigate to an even number, because the steps always fall onto odd values.
* At other times, the step size is set so small that I would have to turn the knob forever. There is no dynamic acceleration, it seems. So I find myself calling up the on-screen keyboard for parameter entry much more often than I'd like.
* Some encoder functions are actually harder to reach now than in the old single-encoder approach. In manual cursor mode, how do I switch to moving both cursors together? Is there really no other option than to open the cursor dialog?!
* I have run into situations multiple times where the knobs get confused as to what they are controlling: Yellow 1/2 indicators show in two parameter fields, but the knobs actually change some other values. Or a knob controls a vertical scale value, but has its horizontal white arrows illuminated.What are others' experiences with the FlexKnobs? Am I just "holding it wrong", or do those knobs need some love and care from the Rigol software team?

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