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Pocket-Sized 6 GHz 1 TS/s ET Scope

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SJL-Instruments:

--- Quote from: joeqsmith on January 28, 2024, 10:12:40 pm ---If I use your software to stream all the data to disk and let it run for a half hour, could you track it down from that?   

--- End quote ---
Currently the streaming does not support raw CDF data. We'll patch it shortly and send you a version that does.

joeqsmith:
Installed and running.  I have it recording all four channels.   If you have a way to sift through all of that data, I can send you the worse case ones, or I can compress the whole directory and send it.  I'll let it run a half hour. 

SJL-Instruments:

--- Quote from: joeqsmith on January 28, 2024, 11:17:20 pm ---Installed and running.  I have it recording all four channels.   If you have a way to sift through all of that data, I can send you the worse case ones, or I can compress the whole directory and send it.  I'll let it run a half hour. 

--- End quote ---
Thanks. Compressing the whole directory is fine - it provides more statistics anyway.

joeqsmith:
No problem.  You should have it.

SJL-Instruments:
We received it - thanks.
Analyzing the saved voltages, the largest min-max spread on any channel, at any time, was 6.7 mV. (This is the max over 119 sweeps * 736 pts/sweep * 4 channels = 366kpts.)
(All the data is plotted in the below images.) Channels 1 and 2 plotted (4-attachment limit).

The residuals (deviation from the average trace) are all within nominal specs. The noise is larger when the signal has a larger slope - this is caused by timing jitter translating into voltage jitter.
The RMS noise was well below 1 mV on all channels.

Overall, we didn't see anything out of the ordinary - no spikes. You can reproduce this analysis if you'd like (voltages are saved as a standard CSV).


--- Quote from: joeqsmith on January 28, 2024, 10:12:40 pm ---I'm using 30 samples, linear fit.

--- End quote ---
Could you describe precisely how you implemented the linear fit? Is it as described in Section 4.3.2?

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