Well in case anyone doesn't know, they announced another line following the 1000X series, SDS2000X series. Seems when ever I pick up a Scope, the manuafacturer
releases the updated version for around the same price I paid for the older model. Just my luck
Brief specs that are worth noting:
Record Lengths up to 140Mpts
Digital Trigger
Waveform capture rate up to 500,000wfm/s (sequence mode) and 140,000wfm/s (normal)
25Mhz Function/Arb Generator (not sure if this is option or standard)
16 channel MSO Digital channels (rather than the 8 on SDS2000)
Looks like just an updated version of the SDS2000, question is does the this model now replace the SDS2000? Or are they
two separate lines like Rigol's Z series?
Also will Dave do a review in the future of what the differences are, cause I'm a little baffled...
Chinese manufacturers have this tendency to constantly release new hardware without ironing out the firmware/software issues
with the previously released gear. One thing *at the very least* Siglent is doing right is keeping the firmware common across
all devices. So fixes/changes, blanket across their line of similar products.
Chris
In what way is the "digital trigger" in the Siglent scopes different from other DSOs?
In what way is the "digital trigger" in the Siglent scopes different from other DSOs?All triggering is digital because it basically is a comparator and a trigger level. What Siglent did is somehow remove the need to have a bit if hysteresis in the trigger circuitry. The SDS2000 I had triggered on small signals unlike any other oscilloscope I have seen so far. But don't get too exited: it is very rare to need such a sensitive trigger. It is a bit like the waveforms/second number. Looks nice but the practical application is very limited. I'd actually rather have a scope with more memory than waveforms/second.
It would be interesting to know more technical details about the Siglent digital trigger circuitry.
A picture of a traditional digital trigger circuit (Rigol) versus a picture of an improved digital trigger circuit (Siglent).
It would be interesting to know more technical details about the Siglent digital trigger circuitry.
A picture of a traditional digital trigger circuit (Rigol) versus a picture of an improved digital trigger circuit (Siglent).I fear that a digital trigger could also mean that it's always completely done in the FPGA which could introduce latency/jitter.
So a digital trigger is not necessarily always a good thing.
I think I already posted some numbers on the minimal signal level for triggering. IIRC a 'regular' scope stops triggering on a clean sine wave around 6mV where the SDS2000 could get a stable trigger on a signal less than 1mV. This looks very cool but it could very easely backfire (not work at all) when trying to trigger on a noisy signal!. Remember Siglent is relatively new in the oscilloscope business and there is probably a very good reason why other manufacturers with more than half a century experience with building oscilloscopes have choosen to use a higher trigger hysteresis.
Nice specifications, but what SW bugs can we expect??
Public information release date is 30th Nov. It is not today. Today is 28th afaik. It is also clearly stated By Siglent who also have asked that who ever have preliminary information from Siglent do not publish information before official launch date what is not today.
(also there is possible unexpected short delay with some models availability)
As it will run a variant of the new V2 FW, very few we expect.
Wuerstchenhund reckons he's found 2 in the V2 FW in the existing 2000 series this thread:
https://www.eevblog.com/forum/testgear/siglent-sds2000-new-v2-firmware/
One being a very small trace zero offset and the other I'm unable to reproduce.
Quote from: rf-loop
Public information release date is 30th Nov. It is not today. Today is 28th afaik. It is also clearly stated By Siglent who also have asked that who ever have preliminary information from Siglent do not publish information before official launch date what is not today.
(also there is possible unexpected short delay with some models availability)
Wow if this is the case they shouldn't have mentioned it on twitter, and directed people to go view the YouTube video
Sorry if I steps on toes, I have no internal connection / contacts with Siglent, so the info was just what I heard publicly *directly*
from Siglent.
Chris
Quote from: tautech
As it will run a variant of the new V2 FW, very few we expect.
Wuerstchenhund reckons he's found 2 in the V2 FW in the existing 2000 series this thread:
https://www.eevblog.com/forum/testgear/siglent-sds2000-new-v2-firmware/
One being a very small trace zero offset and the other I'm unable to reproduce.
Sorry for the double post, I was able to reproduce this small offset, but only after the initial v2 firmware update and the Self-Cal (as instructed). Because the unit was only operating
for roughly 20 minutes I decided to leave it running for an hour and did the Self-Cal again - offset disappeared so it looks like in my case it wasn't up to operating temperature and
all has been well since then.
Public information release date is 30th Nov. It is not today. Today is 28th afaik. It is also clearly stated By Siglent who also have asked that who ever have preliminary information from Siglent do not publish information before official launch date what is not today.
(also there is possible unexpected short delay with some models availability)
Wow if this is the case they shouldn't have mentioned it on twitter, and directed people to go view the YouTube video
Sorry if I steps on toes, I have no internal connection / contacts with Siglent, so the info was just what I heard publicly *directly*
from Siglent.
Chris
Don't stress Chris, for those that have taken the time to look the 2000X has been seen on the China website for some weeks, not obvious but you can find it with Google.
Chinese manufacturers have this tendency to constantly release new hardware without ironing out the firmware/software issues
with the previously released gear. One thing *at the very least* Siglent is doing right is keeping the firmware common across
all devices. So fixes/changes, blanket across their line of similar products.
Sidenote: Not only chinese manufacturers... Have you seen how many sub versions some old Tektronix oscilloscope have, frequently changed something in HW. Also car manufacturers in Germany...and very specially in Japan, buy today and you do not know if motor or chassis have lot of "hidden" changes after last week models. And more fun, depending also what factory have assembled it... Frequently something changes and you meet this problem after you need buy some spare parts.
Wonder how Dave's visit from Siglent management went today?