General > General Technical Chat
How to trigger a combined signal
nctnico:
--- Quote from: StillTrying on October 16, 2022, 01:32:12 pm ---If you want to trigger separately on 3 or 4 channels there's no way to do that, there's no analogue ALT like option. All the sampling and displaying timing is locked to the one trigger channel so you can't stabilize different frequency inputs.
--- End quote ---
That is not entirely true. Some DSOs (some models from GW Instek for example) offer alternate triggering. In that mode the DSO triggers on each channel seperately. Now this won't give you an image where the signals are correlated (as in sampled the same time) but it does allow to put stable signals on screen which have no synchronisation between eachother. This can be handy every now and then.
StillTrying:
--- Quote from: nctnico on October 16, 2022, 09:16:53 pm ---Some DSOs (some models from GW Instek for example) offer alternate triggering.
--- End quote ---
I know, :) my CML+ does ALT with 2 separate triggers and timebases.
https://www.eevblog.com/forum/testgear/siglent-cml-firmware/msg1177621/#msg1177621
But not the https://www.batronix.com/files/Rigol/Oszilloskope/MSO5000/MSO5000_UserGuide_EN-V2.0.pdf
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