Products > Test Equipment
Functional comparison of R&S RTB2000, Siglent SDS2000X and Keysight DSOX1000
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kcbrown:

--- Quote from: RBBVNL9 on January 09, 2022, 02:38:15 pm ---At some point in time, I will try to improve the video (colour) but now I will first give priority to the videos themselves ;-)

--- End quote ---

The problem is that the lighting you're using is warm-ish, but the color temperature of the screen backlights is closer to daylight.  This means that you can't get both of them right at the same time.  If you set the white balance to match your lighting, then the screens will have a blueish tint to them.

The white balance you're currently using looks like a reasonably close match to the color temperature of the screen backlights, so the screens themselves look reasonably accurate.

For those parts of the video where the scopes are turned off, it may be reasonable to set the white balance to match your lights.  But for those parts where you intend to demonstrate something on the screens of the scopes, your white balance needs to roughly match the scope backlights (i.e., be reasonably close to daylight).

You're going to have to change the lighting itself if you want the color temperature of the environment to be a reasonable match to the color temperature of the screens.
tautech:

--- Quote from: RBBVNL9 on January 09, 2022, 10:29:07 am ---Concerning the probe sensing… It’s an area where the SDS certainly has a plus over the RTB and DSOX (as I mention in the video).

In my video and document, I just relied on the User Manual of the SDS, and an old 10x Tek P6105A 10x probe I happened to have in the lab (and which is correctly identified as a 10x probe by the SDS).

I now tried a couple of resistor values. As far as I can see, the SDS interprets any resistance between 0Ω and 56kΩ as “10x”, and resistance between 82k to infinity as “1x”. So, it seems that there is no recognition for other attenuation values, as it is.

--- End quote ---
Correct, I now have an SDS2104X+ out and these have a 100x probe detection bug whereas SDS5000X detect 100x probes correctly.
Will report it with a high priority fix request.
bdunham7:

--- Quote from: tautech on January 10, 2022, 09:25:54 am ---Correct, I now have an SDS2104X+ out and these have a 100x probe detection bug whereas SDS5000X detect 100x probes correctly.
Will report it with a high priority fix request.

--- End quote ---

If they can't fix it because the hardware is simply 0/1, then they should provide an option to disable probe sensing altogether.  I could live with that, but having it override my input when I connect a 100X probe with a readout pin is pretty annoying.
RBBVNL9:
bdunham7 wrote:


--- Quote ---I can confirm that the Siglent is a bit of a power hog, 50-60W running and 4.2W when off.  A hard power off switch would be good.

--- End quote ---
Yes, that is also what I measure. Some 4 watt is quite a bit (and from this standby, the device does not boot any faster than with a cold start). The RTB consumes 0.5 watts on standby.

Bit off-topic, but I love the way the power-save mode is implemented in my new Jura coffee machine. It was advertised as consuming 0 watts. I was curious, measured it, and… it’s true. I suppose it really disconnects itself from AC altogether after a timeout, and that the button to turn it back on actually restores the AC circuit temporary, until a relay takes over (although other implementations are possible as well). Anyway, well done!
normi:
The problem I am seeing here is that there are numerous persons commenting on the Siglent but the other scopes are not being mentioned. So if you have missed details on the Siglent then how can one be sure that details on the other scopes are not being mentioned. So I am afraid your video may be skewed in one direction and not give a fair comparison.
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