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| Pocket-Sized 6 GHz 1 TS/s ET Scope |
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| joeqsmith:
Using your 202020 settings and a resolution of 8pts/div, I place my hand on the Tektronixs pulser to cool it to give you some sense of the drift I am referring to. Note how it shifts the phase about 60ps. Zoomed into 10 ps/div, you can see how this bit of drift will easily cause the edge to go off screen. |
| joeqsmith:
I tried to save a reference for each sweep. Doing so, I notice the maximum allowed is letter X. More than enough. What is interesting is if you select save reference again, it doesn't round robin. Rather it saves to Y but it turns off the readable scales. Selecting save again appears to have no effect. The only way I found to enable the scales is to turn off reference Y. Personally, I would rather it cycle through the references and never disable the scales. Once X is reached, it starts over writing into location A. **** It would also be nice to know when looking at reference A-X, which channels they were derived from. Maybe you could use A1 for channel one for example. Or maybe just add a new indicator. I don't know if you have had any feedback on how you allow changing of the scale for example by scrolling the center button. I like the concept but it doesn't seem to always work. Sometimes I have the mouse positioned on the scale box and rotating the button will cause the software to scroll through the waveforms rather than changing the scale selection. Even if I left click and the software highlights the scale text, the center button will instead scroll though the waveforms. Other times, I am trying to scroll through the waveforms and the mouse rests on one of the scales and it decides to update the scale. I like the concept but it just needs a little work IMO. |
| SJL-Instruments:
--- Quote from: joeqsmith on June 09, 2024, 07:10:42 pm ---It appears that when selecting the "Automatically determine from holdoff" the software does not immediately calculate the new values. Rather is seems to require some event such as changing the trigger level or the holdoff time. Maybe this is by design but personally, I would rather it calculate the new values based on the current settings instead of having to change values to get it update. ******* Also, if I load settings that do not have the CDF settings set to auto, they will take effect immediately. If I then load settings that use auto for the CDF, the software does not appear to update to the correct values. Lots of clues. --- End quote --- --- Quote from: joeqsmith on June 10, 2024, 12:18:03 am ---I tried to save a reference for each sweep. Doing so, I notice the maximum allowed is letter X. More than enough. What is interesting is if you select save reference again, it doesn't round robin. Rather it saves to Y but it turns off the readable scales. Selecting save again appears to have no effect. The only way I found to enable the scales is to turn off reference Y. Personally, I would rather it cycle through the references and never disable the scales. Once X is reached, it starts over writing into location A. --- End quote --- Both of these bugs are fixed in the below prerelease: https://gigawave-releases.s3.us-east-2.amazonaws.com/GigaWave_v2.6.7_PREVIEW20240609_Windows.zip --- Quote from: joeqsmith on June 10, 2024, 12:18:03 am ---It would also be nice to know when looking at reference A-X, which channels they were derived from. Maybe you could use A1 for channel one for example. Or maybe just add a new indicator. --- End quote --- In the pre-release, we have added a user-editable label to all reference channels. By default, the label indicates the source channel (or the filename, for imported waveforms). Should help a lot with bookkeeping. --- Quote from: joeqsmith on June 10, 2024, 12:18:03 am ---I don't know if you have had any feedback on how you allow changing of the scale for example by scrolling the center button. I like the concept but it doesn't seem to always work. Sometimes I have the mouse positioned on the scale box and rotating the button will cause the software to scroll through the waveforms rather than changing the scale selection. Even if I left click and the software highlights the scale text, the center button will instead scroll though the waveforms. Other times, I am trying to scroll through the waveforms and the mouse rests on one of the scales and it decides to update the scale. I like the concept but it just needs a little work IMO. --- End quote --- This was accidental and is a consequence of how Windows handles comboboxes by default. ;D In the prerelease, we disabled scrolling the scale setting to avoid all ambiguity. Since you found it useful, we may re-enable it in the official 2.6.7 release, but only after clicking on the scale box. Your other suggested changes (not listed above) will go into the 2.6.7 release later this week. |
| joeqsmith:
Still does not appear correct when loading the setup with CDF set manual vs auto. Odd is if I expected it to be in auto after loading the setup, I select the CDF sampling options and it changed to auto and starts sweeping very slowly. If I select apply (auto is still selected) it appears to change back to manual. Really odd. Attached is what I interpreted the OP was asking for. My software will plot the histogram and min/max but I guess I had not added the transition time vs sweep. The scope was set for some very fast sweeps just to get some data to plot. I expect if we set it up for higher resolution, the noise would significantly reduce. Shown is about an hour or so of data. Once you have your software working, we can run this test for real. |
| joeqsmith:
I added the ability for my software to track the temperature drift, allowing me to collect data for a longer time. I used a resolution of 5ps and started out with Triggers per Sample and Samples per CDF set to 10. After 230 sweeps I changed them to 20. After 540 they were set to 25. It does help improve the measurement. Of course, more data, the longer the sweep time. |
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