Products > Test Equipment
Siglent SDS800X HD Review & Demonstration Thread
Performa01:
--- Quote from: markone on May 11, 2024, 05:43:46 pm ---So now we can officially say that there is some margin of improvement in FFT performance, could you "disclose" if we will see something in regard with the incoming FW release?
--- End quote ---
Sorry, but even when it might appear that way, that issue isn't simply a programming error. Repair of the FFT would be relatively easy, but could affect other math and measurement functions in a negative way - and the perfect solution might take a lot of additional resources. So the viable solutions are still discussed internally and I cannot even know how much effort the final (safe) solution will be.
eTobey:
--- Quote from: ebastler on May 12, 2024, 06:02:13 am ---
--- Quote from: eTobey on May 12, 2024, 05:29:05 am ---Is there a way, to create a math formula, so one could easily see, what the duty cycle (yellow) roughly is?
--- End quote ---
A "Measurement Track" (section 18.5 of the manual) should do what you want: Calculates time-dependent measurements within one capture and plots them like a trace.
--- End quote ---
Thanks.
Thats kinda nice, but why didnt they include this in the math? Alignment is everything with a scope. :palm:
2 Sentences in the manual, but 6 settings / buttons in the scope.
Performa01:
--- Quote from: joeqsmith on May 12, 2024, 05:01:39 pm ---Thanks for the response. It could very well be my lack of any common sense and experience causing my confusion.
--- End quote ---
No need to be sarcastic.
I thought it was clear that I was talking about oscilloscopes and not power meters, which commonly have an order of magnitude better accuracy. Consequently, I would also prefer a VSWR of 1.05 for the power meter.
I thought it was clear that I was talking about oscilloscopes and not complete measurement setups. Nowhere did I state that a better VSWR could not be beneficial at times, and that it could not be achieved by adding an inline attenuator – even though in practice I’ve more often wanted to improve the output impedance match of a generator than the input match of an oscilloscope – but that’s just me.
joeqsmith:
There is no reason an oscilloscope could not measure power. In this thread we are seeing a lot more applications and I don't see this curbing anytime soon. I'm not suggesting an oscilloscope is a replacement for a power meter, network analyzer, spectrum analyzer.... Rather, modern scopes are slowly smearing the lines. As their performance improves and the features they support grow, I suspect such details will become more important. While a VSWR of 1.5 may be a good guideline when talking about antennas, it's not something I have ever considered when making a measurement in the lab. Certainly not a standard. Rather, I treat each measurement as a unique problem.
Oh well, sounds like I have my answer and not trying to upset you. Thanks for the input.
--- Quote from: Performa01 on May 12, 2024, 06:48:24 pm ---
--- Quote from: joeqsmith on May 12, 2024, 05:01:39 pm ---Thanks for the response. It could very well be my lack of any common sense and experience causing my confusion.
--- End quote ---
No need to be sarcastic.
I thought it was clear that I was talking about oscilloscopes and not power meters, which commonly have an order of magnitude better accuracy. Consequently, I would also prefer a VSWR of 1.05 for the power meter.
I thought it was clear that I was talking about oscilloscopes and not complete measurement setups. Nowhere did I state that a better VSWR could not be beneficial at times, and that it could not be achieved by adding an inline attenuator – even though in practice I’ve more often wanted to improve the output impedance match of a generator than the input match of an oscilloscope – but that’s just me.
--- End quote ---
RoGeorge:
--- Quote from: Performa01 on January 23, 2024, 08:33:24 am ---A revised summary of this thread together with some new content in a PDF can be found here:
https://www.eevblog.com/forum/testgear/sds800x-hd-review-demonstration-thread/msg5422823/#msg5422823
--- End quote ---
Outstanding demos and pdf documentation, thank you.
You may want to add in the opening post a link to the second pdf, too ( https://www.eevblog.com/forum/testgear/sds800x-hd-review-demonstration-thread/msg5422826/#msg5422826 ). The second pdf has only half the number of downloads than the first, would be a pity for the second part to remain lost somewhere inside the thread.
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