I suggest you get a 10k pot out and find the 100x sense pin thresholds for your 2kX+ as it appears they don't match Tek but is that any surprise ?
Since forever there has been no hard and fast standard for sense pin resistances.
FYI this is how the same probe autosenses in 50 Ohm mode.
What is the pin to BNC outer resistance ? This 100x probe measures 6.2k and autosenses just fine.
Don't have a SDS2kX+ unboxed so checked on my SDS5kX demo.
I have a Tek P6156 with switchable 1x/10x/20x/100x.Seems entirely the wrong probe to use with a SDS2kX+.
https://w140.com/tekwiki/wiki/P6156
It is designed for use with wide band oscilloscope amplifiers with 50 Ω inputs
Not recognizing why Siglent have laid out the channel button indicators how they have seems like the user has recently migrated to a DSO after years of experience with only CRO's.
Concerning having (button) LEDs on for all active channels (vs. selected channels): I realize from the comments this is a bit of a user preference aspect and also may depend on the devices you come from, respectively the other devices you use.
2N3055 makes an important point that we should not forget about people with visual impairment. They may indeed prefer to have button lights illuminating on selected channels only. I must note, however, that the RTB and DSOX both can show the text “Channel 3” written on the screen when channel 3 is edited, and both also show it with trace markers (left of the trace). The RTB furthermore shows it with a highlight at the bottom of the screen. So, there are multiple clues for the (colour) visually impaired onj these devices.QuoteNot recognizing why Siglent have laid out the channel button indicators how they have seems like the user has recently migrated to a DSO after years of experience with only CRO's.
I don’t think that is a fair point, tautech: having lights on the front panel illuminated for all active channels does not seem to be uncommon for modern DSOs at all. Unless I am mistaken, this is the implementation on various models of Teledyne LeCroy (WavePro HD, WaveRunner 8000HD, HDO6000B, WaveSurfer 4000HD), Tektronix models (3 series, 4 series, 5 series), R&S (RTM3000, RTA4000, RTE1000, RTO2000 and RTP RTP), and Keysight (2000X, 3000X, 4000X), to name a few. Most of these examples have shared vertical controls.
Looking at various manufacturers, I even asked myself whether any brand other than Siglent on recent models made the choice to illuminate the buttons for selected channels only. But I am sure others can fill in the gap and show who did, and who did not.
In any case, it’s a matter of user preference; will change this in the document.
At some point in time, I will try to improve the video (colour) but now I will first give priority to the videos themselves ;-)
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.
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.
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.
The Rigol MSO5000 is hardly missed in there.
i think there is a mistake in the document regarding the vertical scale / sensitivity for the Siglent. At least my Siglent has a range from 500µV/div to 10V/div and it is the 100MHz version as received from the dealer without any hacks. So the full range is not only available if the 500MHz option is enabled.
This is also a major drawback of the R&S in my opinion. If you work with european mains voltage you need additional x100 probes because with x10 probes the RTB can "only" show 500Vpp. This might not be a big deal for most people i guess. But another drawback in that case is the more or less unusable FFT if you want to check harmonics of 50Hz mains voltage. At least until the last update. Might have changed now but i can't ckeck since i don't have the RTB anymore.
Indeed, the Siglent goes to 10V/div (thus 100V/div with a x10 probe) and the RTB only to 5V/div (thus 50V/div with a 10x probe). However, tho things to take into account:
1. The RTB has 12 vertical divisions (compared to 10 on the SDS), so can show 12 * 50 = 600V with 10x probes
The RTB has 10 divisions while Siglent has 8 as far as i know.
QuoteThe Rigol MSO5000 is hardly missed in there.
The honest answer is: I don’t own an MSO5000. If I had one, I would certainly be happy to include it. But I want to base my comparison on first-hand observations... If someone owns both the SDS2k+ and MSO5000, do compare, and be my guest to use the structure of the document prepared for this comparison.
(And there are a couple of other scopes I’d love to lay my hand on, too ;-)
About including the Keysight DSOX: I thought it would be worth including this one because Keysight, with this oscilloscope, competes squarely with the R&S RTB oscilloscope in the educational market. While the DSOX1204G was only introduced in March 2019, it has a design/UI concept without a touch screen, and I thought it would be interesting to see how that compares. Is the touch screen design/UI concept overvalued, do other things matter more? Or is it really a no-go to buy a non-touchscreen device today? (Note that also the current Keysight InfiniiVision 2000 X-Series has no touch screen…)
I also recall EVVBlog’s Dave even recently writing that the DSOX is his go-to scope in the lab. Made me curious too, what qualities make him turn to this instrument, while he (arguable) has choices in his lab?
Finally, I found that the DSOX has some nice tricks up its sleeves too that the other scopes I reviewed could learn from. Some examples: (1) when a channel is set to AC coupling, it disables the DC mode of the DVM. The RTB, for instance, does not do this and hence present wrong measurement results. (2) It can do XY imaging with blanking coming in on a “Z” channel. (3) It can link the trigger system to modulation of the internal AWG, thus exploiting the fact the AWG is built into the same device. (4) When in web access mode, the device itself (!) delivers an extensive HTML guide of SCPI commands to the connected computer. Do such points alone make it a more attractive scope than others? I don’t think so. But we do learn from it.
With the RTB2004 you can activate the Z channel with SCPI commands.
It would be great if there were timestamps on the video.
Keysight OTOH is much simpler platform and has much less features, releases were mostly bug fixes and paid features unlocks
@ Pope:QuoteIt would be great if there were timestamps on the video.
Done.
@2N3055:QuoteKeysight OTOH is much simpler platform and has much less features, releases were mostly bug fixes and paid features unlocks
I was surprised myself to see how many actual new features were added by Keysight via firmware updates. Examples (just looking since at FW2.x versions, after Keysight moved to Linux OS):
- Measurement statistics (FW2.12)
- USB Keyboard entry for labels, annotations, file names, etc. (FW2.10)
- Table (lister) of serial decode messages (FW2.10)
- DEMO function with training signals etc. (FW2.10)
- LXI compliance and VXI-11 protocol support (FW2.10)
- Save and upload waveforms and other files via web interface (FW2.10)
- SCPI Device Control online manual via web interface (FW2.10)
- USB or LAN attached printer support (FW2.10)
Granted, some of these just brought the instrument in line with what was already there in competing scopes, but still, it's nice to see that functionalities are added, even as of recently (September 2021).
Performance improvements include:
- Increased waveform update rate (FW2.10)
- Increased number of memory segments (FW2.10)
- Additional memory depth (FW2.10) (even if it's still not impressive compared to competitors...)
I have played around with the RTB2004 XYZ mode for some time,
That's the link to youtube studio and not the video for viewing
QuoteThat's the link to youtube studio and not the video for viewing
Eh, yes.
Video is here (really):
https://youtu.be/T_A3TPn-2IU