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Functional comparison of R&S RTB2000, Siglent SDS2000X and Keysight DSOX1000
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bdunham7:
I'm not sure why--perhaps YouTube hosting this far away from me--but I see low video quality (resolution), buffering and skipping.  I'll try downloading it and see what I get. 
RBBVNL9:

--- Quote ---I'm not sure why--perhaps YouTube hosting this far away from me--but I see low video quality (resolution), buffering and skipping.  I'll try downloading it and see what I get.
--- End quote ---

bdunham7, sorry to see that. The video is definitely posted in HD (1080p50), I do that because otherwise it is hard to really read the screens on these devices...

Probably a YouTube thing, hope your stream is better now!
cesare:
I just watched your episode about the signal generators, and was interested in the SDS2000 problem with loading arb waveforms from channels - I get the same 'File does not exist!' error when attempting to use this feature on my scope.

So, I was interested in what file is missing, and attached to the scope via telnet to have a dig about, and get this entry in the logs when this happens:

W0327 19:20:09.298774   894 bu_app_msg_awg.cpp:626] /usr/bin/siglent/usr/usr/AWG_channel_wave.bin  not exist

So there appears to be a missing binary file which it is expecting to launch at this moment. It's possible that this is a release issue from Siglents end, so they may be able to run and test this feature in their QA team, but it doesn't make it to the binary release onto the production scopes?

I'm also wondering if the SDS5000 has this same functionality, and whether it works, and whether such a binary is included in their software install.

Anyhow, interesting series of videos, i'm learning stuff about the scope I already own!
RBBVNL9:
Hi Cesare, thanks for the comments, and information on the specific file that the scope is looking for when that error pops up. My current thinking is that the BIN file might you identified is not, as you suggest, an executable file that needs to be launched, but instead a waveform data file (Siglent can save waveforms as Binary (BIN) as well as CSV and matlab). I tried to save a BIN file with that specific name from the device interface itself but I don't seem to be able to get to that specific folder the scope is looking into. Perhaps a TELNET session allows us to move a file there.  Something we should dig deeper into!

And.... you are ahead of me: there is indeed a new episode out (two hours ago ;-), did not have the chance yet to write it here.

For those that have not seen it yet: new episode 7 talks about signal generators (function generator, ARB, pattern generator, training signals). So about scopes generating signals instead of analyzing them.... ;-)

Along with the episode, there is also an updated comparison document, as well as two XLS files: one to create your own ARB waveforms for both RTB and SDS, and one to create 4-pin patterns for the RTB.

Enjoy!

 
egonotto:
Hello,

thanks RBBVNL9 for the video.

In the datasheet from RTA4004 is the same 10 Ms/s.
I think they mean the frequency is max 10 MHz and 250 Ms/s.

I copy a part of a sine wave to the function generator of my RTA4004.

This arb function is played with 1 kHz and 10 MHz.

The pictures shows, that the max sample rate from the function generator must be far more than 10 Ms/s.

Best regards
egonotto

PS.: The fall time is about 6 ns.
 
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