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Hello
I try to capture a MiWi signal burst from a Microchip device sending at 868MHz,
Seems I can’t set a longer sweep than 134.817msec in Spike software…
How can I capture and store a signal say around 1 secs in length triggered by the set level in the software?
thanks in advance
richardHey Richard,
As of right now the software limits the zero-span view to 64k samples. We have talked about removing this limitation and it may happen in a future update. This limitation only applies to viewing the signal though. The capture toolbar along the bottom can be configured to record up to 1sec of data. When you have set it up to save your capture length, pressing record saves the next triggered trace. So if you had video trigger active, it would save the next trigger event. If you had it on free run, then it would save the next trace on the screen.
I hope this helps. Let me know if you have further questions.
Regards,
A.J.Also when in Video Trigger Type, the trace keeps updating with ‘Armed’ displayed on top if there is no trigger.
Is this correct… ie. acting like a scope ‘Auto’ free-run trigger.
Hi Jyaron,
The armed message indicates a trigger was not found for the specific capture but it is still looking for the next trigger. If you were to press “Single” then the software would update until the first trigger was found and stop. We determined updating the screen with the armed message is a good way to show the user the software is still looking for a trigger without pausing the software completely.
As for me, I don’t want to see untriggered data, because it quickly erases useful triggered event and fills screen with useless garbage.
Almost every oscilloscope has 3 trigger modes – Normal, Auto and Single. I think it’s good to have all 3 variants of operation in Spike (it has only 2 now, Single and Auto).
By the way, i think Spike should have Stop button (it should be near Single button). To freese aquiring and let me see and analyze captured data. Single button can’t help here, because it will erase my data (found event could not happen anymore).
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