Hi folks, are there are some teardowns from `SDS1204X-E` ?
...
Red is `SDS1202X-E`, green is `SDS1104X-E`. ...
Also mine which is SDS1104X-e with HW 09-06 is showing very strange results with 200Mhz square wave signal (I know it is out of spec) and too much attenuation and I don't think that the frontend is capable of 200Mhz or is limited in the 09-06 version.
Also mine which is SDS1104X-e with HW 09-06 is showing very strange results with 200Mhz square wave signal (I know it is out of spec) and too much attenuation and I don't think that the frontend is capable of 200Mhz or is limited in the 09-06 version.
This may not be entirely true. SDS1104X-E is currently sold in 2 different HW versions - 01-05 and 09-06, so there will be some differences.
So far I can't find pictures of the newer HW version.
Also mine which is SDS1104X-e with HW 09-06 is showing very strange results with 200Mhz square wave signal (I know it is out of spec) and too much attenuation and I don't think that the frontend is capable of 200Mhz or is limited in the 09-06 version.
Thank you for your answers!
Especially about different HW révisions.
Just a little about the purpose of the scope i'm looking for: to test pocket AB amps i wanna make for fun, check if power is clean also and do some fun with uart. Nothing professional, just a hobby fun.
In Siglent i appreciate features like 4 channels, 1GSa/s per group, pretty fast waveforms/s aaand FFT (which looks good after the reviews i've seen), slow on 1Mpts but it's 1Mpts, so noise is lower and more details. I say again, it's for audio freq & for "excited" AB chips (which could do 20MHz or 30MHz in theory if i screw the schematic).
Also for the other fun cases i've seen that with scope and some math you can check C, L and electronic components (but i have testers also). I wanna enjoy it in my 36.
So my fun budget is 500-600€, and i agree with Dave (from YouTube), that 1k will be overkill for my needs. Also, compared to "same" rigols siglent more sensitive.
Next about hacks: 100MHz is okey for me, i don't need 200MHz, also i don't need 16digit channels (just 4 analog) and don't need generator cause i can make my own (w/ scope) or buy any other brand. But i want 100MHz i'm paying for. So here we speak about the hack and the screenshot from the review.
Why the hek 100MHz have -1dB at 75MHz?.. i can't get in. 200MHz model is cool at 200MHz and you pay for 200MHz, but when you buy 100MHz you don't pay 50MHz scope or 75MHz scope. So if it's pure software crap, well, i will hack that FIR config and enjoy my 100MHz scope.
If the frontend is different and poor, well, i will enjoy nothing and lose factory calibration (seen these comments in topic) which was made for 100MHz scope.
So, did actual SDS1104X-E have poor front (or the other parts) compared to SDS1204X-E or it's just software "issues"? I've seen siglent folks in thread also, if they have no NDA, it could be good to know simple "no bruh, it's just software" or "yeah, don't even try to get real numbers with latest 1104 models at 80-90MHz".
Before i was targeting MSO5074, hacked, sure, to get 100MHz, but 8Gsa/s it's total overkill for me (again i'm agree w/ Dave).
Why the hek 100MHz have -1dB at 75MHz?.. i can't get in.
The reason is of course that the artificial bandwidth limit is accomplished by a FIR-filter that is not Gaussian. Those who ask why we don't choose a filter characteristics that has even less (ideally zero) drop up to the corner frequency should learn about the requirements for an oscilloscope frontend, ...
...especially group delay.
A "flat-top" frequency response comes at the cost of more overshoot in the step response. It's a trade-off.
An ideal Gaussian filter has the nice property of having no overshoot in the step response while minimizing the rise and fall time.
With a (symmetrical) FIR filter, frequency-dependent group delay is actually not an issue -- any symmetrical FIR filter is linear phase.
Have you upgraded it to 200MHz? And where are you getting a 200MHz square wave? If you want to test the front-end capabilites you'll need to use a clean sine wave or perhaps a fast edge at a much lower frequency.
Maybe you could take a screen shot and show us what you are seeing.
To look at 200MHz squarewave you need 1GHz + scope... 2GHz even better..
Explanation and reference please...?
BillyO which screenshots ? Here is the tread https://www.eevblog.com/forum/testgear/siglent-sds1104x-e-in-depth-review/
BillyO which screenshots ? Here is the tread https://www.eevblog.com/forum/testgear/siglent-sds1104x-e-in-depth-review/Sorry, I thought you were actually seeing all this poor performance. But I guess you are just imagining it?
As I said above, with the 200MHz enabled, you will not have any issues with bandwidth.
Hi all
I don't seem to be able to update my 1104 to OS3. I tried with several USB sticks but nothing happens. OS is still listed at 8.2. Yes, I know there is probably little gain in going to 3 but that's another story!
Can anybody help me please?
Thanks
Tony
Yeah, that was my comment about the little gain in updating. Still, why is it not updating?
Yeah, that was my comment about the little gain in updating. Still, why is it not updating?
Is your scope System Status showing Hardware revision 09-xx ??