a very nice thing keysight 3000x can do compared to scopes in simillar and lower class is that it can decode CAN and apply a dbc file to the decoded data (so ID 0xABCD will read as "Engine ECU #1" for example)
can this siglent or any siglent do that? makes it a lot easier to interpret data before going to a canbus analyzer... (if none can, please appropriate people, take note..)
by the way i was looking at simone's video
liking what i'm seeing so far..
It'd be nice to look at some high speed SPI and see how good/bad is it when reducing the timebase. I'd be happy to test it myself or bring a board to test but i have no reason to come to bologna before the new year, i'm busy all weekends... (well i'll probably be there at new year's but no work, all play )
I'd like to see a similar video for the 1104 with a 100mhz input signal and also a video with SPI decoding
All functions and other things are indentical between SDS1104X-E and SDS1204X-E. All is similar. All works similar.
There is one - just exactly one - difference. Analog front end before AD converters analog frequency bandwidth is different. Every other things are equal exactly. Difference can see in risetime what is just same as frequency response. Other thing is that 200MHz have bit more natural noise due to more wide BW. With SPI decoding you can not see any difference between these models until exept if signal is so fast that frequency BW come important.
100MHz model may be even better than 200MHz model because Nyquist if use it so that sampling speed is 500MSa/s. 200MHz is just 1.25 x fNyquist what is barely enough IF signal is pure sine wave and very good quality Sin(x)/x filtering is in use. If signal have some frequency components what goes over 250MHz it produce aliasing, also barely over 200MHz start show some bad effects due to facxt that Sinc interpolation (filter) is done using only small amount of data.
Because BW response shape is gaussian type, also too near Nyquist and over Nyquist limit frequency components can go to ADC and produce aliasing and bit under Nyquist also start example level wobbling and or corners wobbling if pulse type wave have these too high harmonics components.
100MHz model -3dB BW response corner is around 110MHz (in my measurement with single individual unit) and signal is highly attenuated well below f Nyquist. Also it looks like BW shape is more steep over 100MHz than what is example in some previous models. And this is good thing - even when some peoples (mostly noobs) "admire" higher bandwidths in slow speed sampling real time oscilloscopes. (way or other repetitive sampling is different case)
One wink for modifiers and hackers. Make your scope better - reduce BW enough low (related to f Nyquist) and make BW shape after corner frequency for more steep decay. Most reliable and quality works can do with max flat and brickwall shape BW. Even if it bit reduce rise times.
200MHz model is barely ok but really in "border line" if more than 2 channels is in use and only if 200MHz signal is enough near sine wave.