X-Mozilla-Keys:                                                                                 
Russell Kent wrote:

Jeff Spitzer wrote:

Don't forget you need some once per rev signal to trigger the 'scope.  A
timing light probe would work if nothing else.

Paul replied:

A most scopes will trigger off the wave form Jeff.
No need of an external trigger signal.

I don't think we need a trigger.  Just set the software scope to capture 10 seconds,
start turning the engine over, and press <ENTER> (or whatever).  That 10 seconds
will be several revolutions of the rotor, which might be a good thing.

Since the software scope captures two channels, I presume it uses the left and right
line inputs.

Paul, are you thinking about having two transducers: one for leading and one for
trailing plugs?  Then you would need to do 1 scope capture run per rotor.

Russell Kent

I had just thought of one. Which plug hole used might be interesting but
I think I would go for the big one to improve the transducer response.

Paul Lamar
 
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