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| Most (Digital-)Scopes are freezing while vertical adjustement... |
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| bdunham7:
--- Quote from: nctnico on November 15, 2022, 04:30:08 pm ---No. Acquisition is interrupted and whatever is in the buffer gets displayed. That is how R&S works. --- End quote --- I don't see how that helps. I'm not even sure what it means. Presumably the only time any of these issues matter would be unusual situations, like a low repetition rate signal and a long acquisition. So some half-eaten acquisition not referenced to a trigger point doesn't seem useful except to give the scope a 'live' feel for those with some sort of OCD over 'lag'. A briefly frozen previous complete acquisition, lined up with the trigger seems to be a much more useful thing to have displayed. I see now that I misinterpreted the original complaint--vertical position vs scale--but I still think it is a non-issue. If your signal is varying that wildly, IMO the thing to do is zoom out a bit, not frantically twiddle the knobs. |
| nctnico:
It purely is a user interface design issue indeed. But in user interface design land lag is something people really obsess over. Just watch the TV series 'halt & catch fire' (supposedly about the founding of Compaq) or more recently 'the playlist' (about the creation of Spotify). In both series user interface lag is a source of serious obsession and frustration for several of the characters. |
| 2N3055:
--- Quote from: nctnico on November 15, 2022, 04:30:08 pm --- --- Quote from: bdunham7 on November 15, 2022, 04:11:55 pm --- --- Quote from: nctnico on November 15, 2022, 03:53:04 pm ---No. Acquisition can be cancelled/halted/stopped at any point. There is no reason to wait for a full acquisition when a parameter changes. --- End quote --- Of course the acquisition can be stopped and restarted, but it has to complete the subsequent acquisition process before the data can be processed and displayed, no? --- End quote --- No. Acquisition is interrupted and whatever is in the buffer gets displayed. That is how R&S works. --- End quote --- So like Joe said, you put scope to 1s/div, and as soon as you move trace with a knob what happens: 1: Immediately erases the screen and starts from left side again with changed vertical position. or 2: Immediately stops the horizontal trace scan and lets you move what was on the screen up and down. Once you stop, it resets and starts from the left. or 3: It lets you move trace up and down while simultaneously keep scanning to the right like nothing is happening (except vertical movement, of course) Thank you. |
| bdunham7:
--- Quote from: nctnico on November 15, 2022, 05:09:53 pm ---In both series user interface lag is a source of serious obsession and frustration for several of the characters. --- End quote --- Although I'm a pretty deliberate sort of machine operator in general, I don't like input lag any more than anyone else. I just don't perceive the issue we're talking about as input lag. |
| JPortici:
--- Quote from: 2N3055 on November 15, 2022, 05:17:17 pm --- --- Quote from: nctnico on November 15, 2022, 04:30:08 pm --- --- Quote from: bdunham7 on November 15, 2022, 04:11:55 pm --- --- Quote from: nctnico on November 15, 2022, 03:53:04 pm ---No. Acquisition can be cancelled/halted/stopped at any point. There is no reason to wait for a full acquisition when a parameter changes. --- End quote --- Of course the acquisition can be stopped and restarted, but it has to complete the subsequent acquisition process before the data can be processed and displayed, no? --- End quote --- No. Acquisition is interrupted and whatever is in the buffer gets displayed. That is how R&S works. --- End quote --- So like Joe said, you put scope to 1s/div, and as soon as you move trace with a knob what happens: 1: Immediately erases the screen and starts from left side again with changed vertical position. or 2: Immediately stops the horizontal trace scan and lets you move what was on the screen up and down. Once you stop, it resets and starts from the left. or 3: It lets you move trace up and down while simultaneously keep scanning to the right like nothing is happening (except vertical movement, of course) Thank you. --- End quote --- FWIW, Tek Does (3) in the 2.5kS scopes, But trigger is disabled |
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