Yes that's right, my CRO displays only one trace for a single shot.It only can trigger from ALL or either input, depending on the settings.
I can see it would be possible to 'interleave' the signal at the output of the A-D converter, but this would
require quite a lot of 'Sample and Hold' memory - but it would be quite possible.Anyway my TENMA won't do it.
So typically a scope can only trigger from one source at a time, but when that trigger happens it will capture and display data from all of the enabled channels at the same time. In fact I haven't ever heard of a scope that would trigger from multiple sources at the same time and thinking about it I don't think that would be a very useful feature anyways.
Not true and not true. The feature is called alternate triggering and can be found on some DSOs (GW Instek for sure). It is handy to show signals which have different frequencies but still have some relation. But you have to realise that the oscilloscope will make seperate acquisitions for each channel so the data on the screen is not from the same time.
I'm so confused. Your scope will only display a single channels waveform if you do single shot?
Yes that's right, my CRO displays only one trace for a single shot.It only can trigger from ALL or either input, depending on the settings.
This is why I want to make sure it can trigger and display simultaneously all the traces interlaced.Thanks Simon.
Could ALL stand for Alternate, even though misspelt and makes little sense on a DSO.
Triggering off either channel should show both traces in single captures.
There is no option to tell the scope "wait for a trigger event on either CH1 or CH2, then capture both traces". I am not aware of a general-purpose scope which can do that. You always have to select one of the channels to define the trigger event.
I forgot about Pattern triggering.........some playing with unrelated signals on a 4ch X-E.
Yes but does OR triggering work in single capture mode, it should do.
I remember analogue storage tubes, but I've never needed an OR'd triggers single capture!
There is no option to tell the scope "wait for a trigger event on either CH1 or CH2, then capture both traces". I am not aware of a general-purpose scope which can do that. You always have to select one of the channels to define the trigger event.Many scopes have logic gate in trigger system and you can connect channels to this gate input and gate output generate trigger.
Hi again.Regarding my Oscilloscope question, I meant a type that if it says 2Gs/s per channel it is always that no matter how many channels you are on.Thanks Simon.