| Products > Test Equipment |
| Functional comparison of R&S RTB2000, Siglent SDS2000X and Keysight DSOX1000 |
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| bdunham7:
One thing that bugged me was the statement that the SDS2000X had probe sense for 1x/10x. What about 20X and 100X? So I checked, and it doesn't do those. :( After all the trouble of adding the actual probe sense pads and circuitry, it seems silly to leave the implementation incomplete. Perhaps that can be fixed in firmware? It's open for 1X, 10k for 10x, 5K for 100X and 1.5k for 20X. 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. |
| mawyatt:
--- Quote from: tautech on January 08, 2022, 08:48:25 pm --- --- Quote from: pope on January 08, 2022, 08:33:15 pm --- --- Quote from: RBBVNL9 on January 08, 2022, 07:24:37 pm ---The SDS already has two USB connectors but for whatever reason, mine fails to work well with a hub. --- End quote --- Interesting. Have you tried all three USB ports? --- End quote --- The rear USB-B is for USB device communication only. Could be just RBBVNL9's hub, IDK. :-// We need some more feedback if other SDS2kX+ owners are having problems with hubs. --- End quote --- No problems with hubs with either SDS2kX+, using cheap Yuanxin types from Adafruit. Can use wireless mouse/keyboard dongle, various USB thumb drives and such. Best, |
| tautech:
--- Quote from: bdunham7 on January 08, 2022, 10:07:23 pm ---One thing that bugged me was the statement that the SDS2000X had probe sense for 1x/10x. What about 20X and 100X ? So I checked, and it doesn't do those. :( --- End quote --- 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. |
| bdunham7:
--- Quote from: tautech on January 09, 2022, 02:26:26 am ---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. --- End quote --- I have a Tek P6156 with switchable 1x/10x/20x/100x. The resistances for each are open, ~10k, ~1.5k and ~5k. These all indicate correctly on my Tek scopes except for 20x, which was only supported on the 11000-series sampling scopes. I also have a Probemaster 100X w/ readout and it measures 6.9k. Again, both Tek scopes recognize it as 100x. The SDS2000X+ switches to 10X if any probe I have with a readout pin is attached, and I checked all 4 channels. From what I've read the nominal values are 10x--11k, 100x--6k, 1000x--??. My 2465B actually recognizes the 20x one as 1000x, so I assume that the 1.5k is in the ballpark for that. The 2221A probably doesn't know about 1000x probes. |
| tautech:
--- Quote from: bdunham7 on January 09, 2022, 03:29:19 am --- --- Quote from: tautech on January 09, 2022, 02:26:26 am ---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. --- End quote --- I have a Tek P6156 with switchable 1x/10x/20x/100x. --- End quote --- 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 |
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