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Rohde & Schwarz Oscilloscopes - Questions/Comments? Let me know!
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Joel_l:
I'm not sure, but my thought is that Nth single captures however many single shots. So lets say you wanted to trigger on the 5th edge of something, the 5th capture of 5 singles would be what you want and the first 4 are not of interest ( maybe ). At least that's what I'm thinking is the way Nth single works. I only think it's N separate captures because it seemed to be a feature of expanded memory.


--- Quote from: phs on May 30, 2017, 02:23:08 pm ---piranha32,

  I think Nx Single determines how many waveforms are captured at a time, whereas Nth Edge Trigger triggers on a specific edge of a waveform, after a specified high/low time.  I use Nth Edge a lot.



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mikeselectricstuff:

--- Quote from: Joel_l on May 31, 2017, 07:42:45 pm ---I'm not sure, but my thought is that Nth single captures however many single shots. So lets say you wanted to trigger on the 5th edge of something, the 5th capture of 5 singles would be what you want and the first 4 are not of interest ( maybe ). At least that's what I'm thinking is the way Nth single works. I only think it's N separate captures because it seemed to be a feature of expanded memory.


--- Quote from: phs on May 30, 2017, 02:23:08 pm ---piranha32,

  I think Nx Single determines how many waveforms are captured at a time, whereas Nth Edge Trigger triggers on a specific edge of a waveform, after a specified high/low time.  I use Nth Edge a lot.



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Nx single is a completely different thing. It can't replace Nth edge trigger as the edges could occur in quick succession, far quicker than a complete single acquisition.
 
The reason for Nx single is the way they do segmented functionality.

I'm only familiar with how Keysight do it, which is by specifying a number of segments, acquiring each segment, and stopping when all are done. A limitation of this is you might want to see the last <n> segments before manually stopping, and you can't do this.

Instead R&S call it "History" mode, which simply gives you access to the last <n> triggers, where <n> depends on the selected memory size. What this alone doesn't let you do is acquire just the first <n> segments.
Hence the Nx single allows you to acquire the first <n> segments by pressing SINGLE, or the last <n> by pressing RUN/STOP
This is more flexible than Keysight, but not exactly obvious and they are well aware of this - I only figured it out as I'd previously noticed Nx single and not realised why it was there until I investigated history mode.
I spent a while discussing with Joel from R&S when they came to see me a while ago.  My suggestion was to add a text prompt to the History mode screen to point out the Nx single functionality

I definitely agree that Nth edge trigger is an unacceptable omission for a scope in this class.
 
Specmaster:

--- Quote from: Rich@RohdeScopesUSA on May 08, 2017, 12:39:45 am ---
--- Quote from: Specmaster on May 07, 2017, 03:00:09 pm ---Hi Rich,

Not sure if you can help me out here or not but I have been advised that I should at least ask you so here goes.

I have just aquired a Hameg HM 408-1A storage scope which has a few problems to sort out electronically, but they can wait until I see if I can fix other more important issues with the mechanics, no point in resolving the electronics if I can't control the thing is there?

Can you advise me as to where I might be able to source the nylon flexible couplings that sit between the Intensity, Focus, Readout Focus and the Volts / Division controls and the knobs? I also could do with but not essential, are the grey key caps for the Y Pos I and Y Position II, just the push in caps?

There is a thread open regarding this restoration here  https://www.eevblog.com/forum/testgear/hameg-408-1a/ which has a photo of the flexible couplings in question.

I'll understand if you can't help, but like I said, you was recommended to me as your company took over Hameg.

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I'll see what I can find out!

-Rich

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Rich don't worry, I have worked around these couplings now with a bodge but hey it works well, I also purchased some second market couplings from Aliexpress which work well in areas where I had sufficient room to use them as they are approx double the originals in size. Thanks for your efforts so far.
technogeeky:
Simple question (inspired discussion in the Rigol bugs thread):

Does R&S, at any point, ever discuss the the open-sourcing (or otherwise free) release of source code or firmware at any point during the entire history of a product (from design through to obsolescence)? Why, or why not?

If it easier to provide an answer by restricting the domain to oscilloscopes, then please do.

It occurred to me that, while we all discuss and speculate reasons which we believe obviate the need to keep software closed and locked up, I wondered if the guys making test gear actually have the discussion internally or not. If not, why not? Surely there are upsides and downsides.

I suspect companies as large as R&S, Keysight, Tek, etc. also have educational programs and educational outreach. Perhaps that is a group of people internally could ask the original question from a different viewpoint: is there a point in a product lifecycle that the educational benefit of a source code release outweighs the need for competitive advantage for the techniques used within?

I don't mean to antagonize or anything, either: I genuinely thought that maybe the question (what do we lose and gain by open sourcing for this product, at this time?) isn't even being raised at any point in the lifetime of something like an oscilloscope.

Muxr:

--- Quote from: psient on May 13, 2017, 11:32:05 am ---Please I ask you Rich, for my edification, why should I buy a R&S as a  first scope? I am just beginning my work shop.  I can't really understand them . . . yet . . . but Rigol is arguing to spend with them. I am new to electronics, old to the U.S. and have a lot of experience in being educated.

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As someone who owns both a Rigol and an R&S scope I can tell you from my experience. They will both do the job. But to me personally the biggest advantage of an R&S scope is the stuff that's not described in the specs (this also applies to Keysight). It's the UI.

It's basically the amalgamation of small things that really make a huge difference when you're using the instrument for long periods of time. Rigol's rotary encoders for instance don't implement acceleration. On an R&S scope if you want to move a cursor or a trace or a trigger to the opposite side of the signal, you can do it in just a turn by turning them quickly, acceleration kicks in which lets you travel big distances. On Rigol it's always at the same speed no matter how fast you turn the knob. The end result is, I feel like I am always turning knobs on my Rigol scope, and I am constantly fighting the UI.

Instead I should be concentrating on a circuit or the problem I am troubleshooting, but no I need to turn this knob 20 times..

That's basically it for me. There is a gulf of difference in the polish and implementation of the interface. Also all features are well thought out and well implemented. Rigol might even have more features than the R&S scope but some are half implemented and others don't even work right. But really for me at least, it all comes down to the well thought out interface.

Rigol offers great value in their scopes, I am certainly not complaining, but an R&S scope is a quality tool.
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