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Touble with triggering

Question asked by shaw002 on Aug 17, 2007
Latest reply on Mar 20, 2008 by onebigdork

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I'm having trouble with my 5000 series scope consistently triggering. I have my trigger set at 200 mV and press the Single button and wait for the buffer to fill, then do my testing. The scope is getting a ready from an amplifier so I can see the output from it reach as high 2 V and it only triggers 7 times out of 10. Any suggestion on why it doesn't trigger 10 times out of 10?

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whitewing Aug 17, 2007 12:02 PM
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Do you have noise reject or HF reject on?
Is holdoff set to more then the minimum?
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onebigdork Mar 20, 2008 11:19 PM
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If you exhaust all of the usual steps, it's good to let someone else take a look at it. If you put the scope on a public network, one of the online Technical Support Engineers at your local call center can drive it remotely and check things out.

I like the holdoff theory above, but I would look at the trigger mode

If your trigger mode is set to Auto and not Normal (triggered), you end up thinking that you triggered on nothing. If the event of interest happens often, you'll catch a few if the triggering event happens before the auto sweep
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Touble with triggering

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