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| Pocket-Sized 6 GHz 1 TS/s ET Scope |
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| SJL-Instruments:
--- Quote from: joeqsmith on February 05, 2024, 06:03:08 pm ---I guess I wasn't clear. Entering "50" does not always give 50V/div. It will sometimes give 50mV/div. Try setting channel 1 using 50m. You should see 50 mV/div. Now set it to 50. Does it stay at 50 mV/div or does it change to 50 V? Try it a few times. It's not repeatable every time. Appears random. --- End quote --- Got it. Entering 50 will give 50 mV/div if the setting was previously in mV/div. Entering 50V will always give 50V/div. This was intentional, and we can change this behavior. In any case, we'll revert to the dropdown in the next update unless a custom scale is requested. --- Quote from: joeqsmith on February 05, 2024, 06:03:08 pm ---Sorry I did not take a screen capture. It was showing wait. Signal input was more than enough to trigger device. Trigger level set to 0. It was like the internal trigger was not working and it wasn't able to detect a valid trigger. Restart of the software cleared it. --- End quote --- Thanks - we thought we tracked down this issue, but evidently it can still happen. We'll run more careful tests to see if we can reproduce this. --- Quote from: joeqsmith on February 05, 2024, 06:03:08 pm ---Exactly. I want to lock the timebase position to the left, center or right. Adjusting anything else in the timebase would not effect its location. I would also like to be able to set the acquisition length rather than the samples per division. I want to start at T0, or 11ns, record for 2ns with a resolution of 1ps. Today, it's not that flexible. --- End quote --- Got it - we'll add these options (hopefully by next update). --- Quote from: joeqsmith on February 05, 2024, 06:03:08 pm ---Is there a reason why you do not implement the same method in your software as what was used to derive the calibration cert? --- End quote --- Mostly due to the nonlinear fit being computationally intensive - it will be significantly slower than real-time. The FFT implementation gives the same result to within ~1 dB. |
| joeqsmith:
--- Quote ---This was intentional, --- End quote --- Really? Personally, I'm not a fan of software that tries to outguess me. If it units are volts and I enter 50, it should give me 50, not m,u,n... It should always do the same thing. But that's just MO. Showing screen capture of PicoTech's 9400 software. This is the first time I have ever looked at their software and it seems fairly intuitive. Note the time base settings. Trigger would need to take on a new meaning with your product. I like their quick button press for most settings returns them to center. Most of the menus are easy enough to locate. Like any new UI, it would take me time to get used to. I'm not liking that it crashed after a few clicks.... |
| SJL-Instruments:
--- Quote from: joeqsmith on February 05, 2024, 06:59:18 pm ---Really? Personally, I'm not a fan of software that tries to outguess me. If it units are volts and I enter 50, it should give me 50, not m,u,n... It should always do the same thing. But that's just MO. --- End quote --- We had it implemented as you stated, and changed it after receiving complaints that e.g. typing 50 into the offset box would set it to 50V instead of 50mV. If we have a box for the step size in the timebase, for example, if a user typed 10 they likely meant 10 ps or 10 ns instead of 10 s. But for the vertical division, as you stated, it makes less sense. We could make an exception for this setting, but then the consistency would be lost (which is the worst of both worlds, in our opinion). We are erring on the side of keeping the current behavior, just because we've received more feedback in that direction. --- Quote from: joeqsmith on February 05, 2024, 06:59:18 pm ---Showing screen capture of PicoTech's 9400 software. This is the first time I have ever looked at their software and it seems fairly intuitive. Note the time base settings. Trigger would need to take on a new meaning with your product. I like their quick button press for most settings returns them to center. --- End quote --- Thanks for this. We'll take this into account, and look around at other software as well, when implementing the extended settings for the timebase. A quick reset button for each setting is easy enough to add. |
| joeqsmith:
--- Quote from: SJL-Instruments on February 05, 2024, 07:49:13 pm --- --- Quote from: joeqsmith on February 05, 2024, 06:59:18 pm ---Really? Personally, I'm not a fan of software that tries to outguess me. If it units are volts and I enter 50, it should give me 50, not m,u,n... It should always do the same thing. But that's just MO. --- End quote --- We had it implemented as you stated, and changed it after receiving complaints that e.g. typing 50 into the offset box would set it to 50V instead of 50mV. --- End quote --- Interesting. The idea of using the previously set value to determine how to interpret the entry isn't user intuitive IMO. I can't believe someone would want it work this way. I'm sure as sales grow, you will receive lots of opinions and I wouldn't be surprised if some of those are not how things typically work. If I get 20 people to suggest you should scan right to left with the earliest time always on the right side, will you do it? Just remember it's your product. |
| joeqsmith:
Thinking about your UI and idea of dragging waveforms. Set up a waveform to say 400mV. Now set the scale to 10mV/div. Now try and drag the waveform into view. If you release the mouse and try to drag again, it resets back to the original offset. You can only drag to -125mV. You have to zoom out to get it back on the screen, take small adjustments and then you can set the offset to keep it on the screen all the way to 10mV/div. |
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