Products > Test Equipment
Pocket-Sized 6 GHz 1 TS/s ET Scope
SJL-Instruments:
--- Quote from: joeqsmith on January 30, 2024, 02:30:30 am ---Painful for you I'm sure but I appreciate you hanging in there.
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Nope, glad to hear it was useful! If nothing else, hope you learned something. :)
--- Quote from: joeqsmith on January 30, 2024, 02:30:30 am ---Also, this entire time I have been running tests looking for a single glitch using your software (and not touching the screen) and everything is clean. I tried all sorts of settings.
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Great to hear. Our internal testing has found no further problems either (and we tried quite hard to cause problems). We're resuming sales as of tomorrow (Tuesday) morning.
joeqsmith:
Certainly learning more about your product.
I have the fitter installed now and running the same settings as before. I'll let you know how it goes.
Review wise, I think we are about a week behind what I had planned. Once things get back to normal for you, I think the next step is start knocking off some of those features. Maybe another week and we can get back to creating that video.
Here's a spoiler.... :-DD
joeqsmith:
Originally, I was seeing glitches within 50 sweeps. With the new fitter, it is now at 639 with the same settings as before and no signs of any problems.
***
Does your hardware support a low power draw mode? Basically, I want to turn it off when not in use without having to pull the cable.
Do you have any plans to add THD measurements to verify performance?
There is nothing in the calibration sheet or manual that talks about the linearity.
Thinking about the inputs, any idea where they start to compress?
SJL-Instruments:
--- Quote from: joeqsmith on January 30, 2024, 04:10:58 am ---Does your hardware support a low power draw mode? Basically, I want to turn it off when not in use without having to pull the cable.
--- End quote ---
No, this is not supported. The maximum power draw of the device is 4 W.
--- Quote from: joeqsmith on January 30, 2024, 04:10:58 am ---Do you have any plans to add THD measurements to verify performance?
--- End quote ---
We can certainly add this, and measurements of all harmonic powers, to the FFT utility.
Note that the calibration sheet THD/ENOB are obtained via a time-domain regression, which does not depend on a choice of FFT window or having an integer number of periods. If using an FFT, you should use a large integer number of periods for accurate results.
--- Quote from: joeqsmith on January 30, 2024, 04:10:58 am ---There is nothing in the calibration sheet or manual that talks about the linearity.
--- End quote ---
To clarify, you mean the DC linearity?
--- Quote from: joeqsmith on January 30, 2024, 04:10:58 am ---Thinking about the inputs, any idea where they start to compress?
--- End quote ---
The inputs do not compress - they're not sent through an amplifier. We have found the THD to be largely independent of signal amplitude.
joeqsmith:
My Signal Hound products are the same in that you can not turn them off. To work around it, they are ran from a powered hub.
It would be nice to have some of the features mentioned for the review as I would rather avoid having to use my software. At the same time, I understand that completing that list of features is going to take some time.
Yes, DC linearity. There was a reason I asked about this undocumented X1 command...
--- Quote ---The inputs do not compress - they're not sent through an amplifier. We have found the THD to be largely independent of signal amplitude.
--- End quote ---
From that, I assume it is linear up to where it starts to clip. Any idea what the recovery time is? Can I drive the input into saturation without damaging it?
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