Products > Test Equipment
Siglent SDS1202X-E or Rigol DS1202Z-E
QuitButton:
--- Quote from: TheBay on June 14, 2021, 10:26:19 am ---
Single ADC so no Dual 1GSa\s (It is 500+500)
No support for the optional AWG or DSO
No Bode plotting
No Browser control
--- End quote ---
So its more like a 2 channel SDS1104X-U.
tautech:
--- Quote from: QuitButton on June 14, 2021, 03:35:59 pm ---
--- Quote from: TheBay on June 14, 2021, 10:26:19 am ---
Single ADC so no Dual 1GSa\s (It is 500+500)
No support for the optional AWG or DSO
No Bode plotting
No Browser control
--- End quote ---
So its more like a 2 channel SDS1104X-U.
--- End quote ---
Yes.
Except for SDS1202X-E has higher sensitivity and better FFT.
The X-E range appeared after the SDS1kX range that had 8" displays and 50 Ohm capable inputs however they didn't have the Xilinx processor that has taken over in all these cheap scopes and permitted snappy operation and additional functionality and improved UI's.
SDS1202X-E led this development and SDS1104/1204X-E, SDS2202/2352X-E and SDS1104X-U followed.
The SDS1002X-E range was to be released to the west in several different BW's however when Dave got a prerelease SDS1102X-E and showed how to hack it to what we now know as SDS1202X-E Siglent withheld all other models and only released SDS1202X-E to the west.
SimonM:
--- Quote from: tautech on June 14, 2021, 12:27:42 am ---Simon, you have a good handle on specs and capabilities and certainly with X-U pricing little more than the 2ch 200 MHz SDS1202X-E it's a no-brainer to get the 4ch X-U if the additional BW is not required. But the SDS1104X-E has better specs and is a more capable scope.
--- End quote ---
I finished my "homework" for the weekend - reading through the entire SDS1000X-E/U manual. Today (Monday) I opted for the SDS1104X-E and it should be arriving tomorrow.
Update
Arrived as expected yesterday (Tuesday). I had a brief "play" and I think they have done a good job with the SDS1000X-E series scopes. It has a fan that is always on which keeps the scope cool and you can tell by the exhaust temperature that it's required. It weighs (without leads/probes) over 2.4Kg, so that's almost 1.8Kg more than a Hantek - this surprised me. Good as it is to get "stuck in" with the manual, it will require more reading, for sure.
Hantek RIP (02.06.2021 - 16.06.2021) :-BROKE
Today (Wednesday) my Hantek DSO2D15 was posted back to Amazon UK. I also sent the 250MHz Hantek probe I ordered separately (because Hantek only provides one probe) back. Amazon notified me that both refunds should be with me in a few days (not going to be out of pocket). As they say (and Jack Yellon wrote), "Happy days are here again!"
Simon
premek_k:
Hi everybody, this is my experience for anybody, who's making decision as I did few days ago:
I chose Siglent and sent it back after few days. Now I'm waiting for Rigol (DS2202 in my case).
I'm not sure, if Siglent I got was broken or not, but my piece had big vertical offset below 10mV scale on both channels and self calibration didn't fix it. In additions, it changed every time I switched a device on, independently I had quick calibration in menu set to on or off.
Secondly, device acted as transmitter - I'm working on RF stuff primarily and when I switched Siglent on, all receiver band was disturbed. It went even worse, when I connected a probe - even layed on table only.
FFT mode - as a one of reasons I choose this mark - had some problem too. There was permanent peak on low frequencies even I had input shorted.
And there was more small things that made me disappointed.
I have old second hand Rigol oscilloscope for many years and there's no problems like this. I hope, that new Rigol will be at least same quality - not like this Siglent toy.
2N3055:
--- Quote from: premek_k on January 24, 2022, 04:48:08 pm ---Hi everybody, this is my experience for anybody, who's making decision as I did few days ago:
I chose Siglent and sent it back after few days. Now I'm waiting for Rigol (DS2202 in my case).
I'm not sure, if Siglent I got was broken or not, but my piece had big vertical offset below 10mV scale on both channels and self calibration didn't fix it. In additions, it changed every time I switched a device on, independently I had quick calibration in menu set to on or off.
Secondly, device acted as transmitter - I'm working on RF stuff primarily and when I switched Siglent on, all receiver band was disturbed. It went even worse, when I connected a probe - even layed on table only.
FFT mode - as a one of reasons I choose this mark - had some problem too. There was permanent peak on low frequencies even I had input shorted.
And there was more small things that made me disappointed.
I have old second hand Rigol oscilloscope for many years and there's no problems like this. I hope, that new Rigol will be at least same quality - not like this Siglent toy.
--- End quote ---
That is a bit of funny story....
If any scope has "toy" implementation of FFT that is older Rigols. They are good entry level scopes but FFT is not well made on those.
What Siglent scope? What model?
What was the offset, in numbers? At which V/div?
Those are important pieces of information...
FFT peak on low frequencies..... That is you, not understanding how FFT works. Sorry.
Frequency of 0 Hz in FFT is representing any DC component (DC offset) in signal. Including DC offset from signal not being fully symmetrical and scope offset. And if you plot FFT in vertical log scale (dBV, dBuV, dBm) it will be visible.
For instance if you feed the scope squarewave that is not symmetrical (say 10% duty cycle) that one will have large DC component. You will see that
So please let us know which exact model of Siglent that was, and also if it was new. If it was new and offset was really bad, you should have sent it back for replacement. If it was used it might have been damaged.
If offset was really bad, you could have seen that in FFT too...
Also, I hope you didn't buy old Rigol DS2202 but current model Rigol DS2202A. That is a decent scope.
FFT will still be much worse Than Siglent has.
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