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Explanation of trigger signal from pickup
Trigger signal from pickup consist of positive and negative pulse. Positive pulse must be first
and is generated by leading edge of trigger bar...negative pulse must be second and is
generated by trailing edge of trigger bar.
If trigger signal is opposite (first negative and second positive), then wires from the pickup
need to be switched...that changes polarity of signal from pickup.
Leading edge of trigger bar defines static angle position and trailing edge defines idle running
timing position.
