Products > Test Equipment
New Rigol DS7000
BarsMonster:
--- Quote from: tv84 on June 13, 2021, 08:50:08 pm ---We did some experiments here with a MSO5000.
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--- Quote from: Sighound36 on June 13, 2021, 03:05:15 pm ---This is the position were found ourselves in two years
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On your screenshots I see that something is working better, than for me...
I see measurements of Jitter. Is it not correct, or they are deficient on some way? What settings you used to get these?
tv84:
--- Quote from: BarsMonster on June 14, 2021, 09:23:06 am ---I see measurements of Jitter. Is it not correct, or they are deficient on some way? What settings you used to get these?
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I just forced the MSO5000 to 500 MHz BW. Sighound36 did the rest with the settings.
normi:
I have the 5000 and the Jitter analysis works as far as I can see, I am not able to see an issue. The clock is recovered and the histogram works, and the table is filled with results. The Eye analysis does not work, and does not detect clock speed.
Why is it reported as not working, also is it possible that the 8000 has some additional files which are missing from the 5000 and 7000 which could be preventing the Eye analysis from working.
Sighound36:
I would just check the results on the 5000, this is what we had and it wasn't accurate shall we say (or not what I would like call reliable, repeatable consistently good readings).
The 5000 and 8000 boards are quite different, suspect both a bandwidth limitation as well as processing power possibly memory limitation?
BarsMonster:
I've noticed interesting sampling artifacts of my unlocked MSO7000.
Signal from LeoBodnar's pulser (SMA->BNC) is fed into channel 3 (could be any other), and we enable other channels to enable 2.5/5/10G sampling.
With 10G sampling - rise time is 474ps, 10ps std deviation.
With 5G sampling - rise time is 459ps (!!!), 15ps std deviation.
With 2.5G sampling - rise time is 458ps, and some huge artifacts / jitter (52ps std deviation).
It is probably expected that when you feed high speed signal into 2 sampling blocks - everything gets slower. So highest bandwidth is achieved with 5G sampling.
But cause of artifacts with 2.5G sampling is not clear.
Any opinion?
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