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Siglent SDS800 Zoom out question (problem?)

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nctnico:
For your particular measurement, segmented recording would be very suitable as you can likely skip a lot of irrelevant parts of the signal in the sweep (trigger on the markers). Add some measurements over the segments or just browse through the segments and measure frequency per segment would make this test quick & easy to do.

Fungus:

--- Quote from: 2N3055 on October 03, 2024, 06:38:42 pm ---"Zoom out" is term related to using zoom function. Nobody cares about "changing timebase after the stopped capture" except people that don't know how to set timebase right in the first place.

--- End quote ---

We could all learn to use left-handed scissors as well, but it's not optimal.

2N3055:

--- Quote from: Fungus on October 03, 2024, 07:04:20 pm ---
--- Quote from: 2N3055 on October 03, 2024, 06:38:42 pm ---"Zoom out" is term related to using zoom function. Nobody cares about "changing timebase after the stopped capture" except people that don't know how to set timebase right in the first place.

--- End quote ---

We could all learn to use left-handed scissors as well, but it's not optimal.

--- End quote ---

I fail to understand the comparison.

I will repeat. OP asked about video and if that video should be taken into consideration.
I said video was wrong on many facts and that that actual Keysight scope is NOT capturing "outside screen" and that this issue is not important for choice of scope. Siglent, Rigol, Keysight. On none of them it is important.
Manual control of sample rate is very important, and manual memory size might be used sometimes (which is Nico's use case).

Using scope memory to "zoom out" is actually doing it in reverse. That is non optimal, not intuitive, backwards way of doing it.
Better way is to capture long in a first place and "zoom in". That way you can clearly see and control the extent of the whole event and can then observe detail both with time base and position (Nico style) and with Zoom (everybody else).

When I'm using scope I don't just twiddle buttons without thinking, hoping, maybe, by providence, I will catch something on the screen, and that scope will magically, maybe, capture something even if I'm just guessing.
And I'm sure you don't either. You analyze and think of ways to best capture point of interest.
It is interactive though process, including operator and instrument and DUT.
Not random twiddling of knobs.

tautech:

--- Quote from: frank2644 on October 03, 2024, 06:59:02 pm ---Any further comments are welcome.
Frank

--- End quote ---
Frank, this is current Zoom mode implementation.



Main/Zoom/2nd timebase are now at different scaling ratios where the main timebase occupies a smaller portion of the display.
Main and 2nd timebase are identified by the dotted lines around them signifying which is is active to the timebase encoder and toggling between them is done by pressing the encoder, touching the display or clicking with a mouse in the one you wish to bring to the encoders control.

As the unzoomed main timebase now occupies a smaller portion of the display where it is very possible to work entirely with the zoomed timebase and leave the main timebase to analyze captures serving as a record of what's outside the the zoomed timebase you might choose to work primarily with when that need is required.

2N3055:

--- Quote from: nctnico on October 03, 2024, 07:04:04 pm ---For your particular measurement, segmented recording would be very suitable as you can likely skip a lot of irrelevant parts of the signal in the sweep (trigger on the markers). Add some measurements over the segments or just browse through the segments and measure frequency per segment would make this test quick & easy to do.

--- End quote ---

I agree. That is good way to do it.

On SDS800xHD we can capture to segments, then go into history mode with measurements on.
You can measure segment by segment, resetting stats in-between, or leave  stats on and run through all segments.
You can also FFT per segment, monitoring spectrum..

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