dbwindom
RV-8
I'm finalizing my Dynon Skyview in preparation for my first engine start. I've used a VP-X Pro, and have dual P-Mags. The Dynon manual says both tach sensor wires can be used, since the SV will use the first value it sees.
The P-Mag manual says "Collect your tack (sp?) signal from only one, not both, ignitions unless your
instrument has provisions for two (separate) inputs."
I started with both sensors connected, but saw many spurious spikes in the tachometer ...WITHOUT THE ENGINE RUNNING.
The spikes were occurring about every 5-7 seconds, more or less, and ranged from <100 to >1600 rpm.
Today I disconnected the right tach sensor wire, and the spikes are much less prevalent, but still occur.
Any ideas about whats causing this? :-/
The P-Mag manual says "Collect your tack (sp?) signal from only one, not both, ignitions unless your
instrument has provisions for two (separate) inputs."
I started with both sensors connected, but saw many spurious spikes in the tachometer ...WITHOUT THE ENGINE RUNNING.
The spikes were occurring about every 5-7 seconds, more or less, and ranged from <100 to >1600 rpm.
Today I disconnected the right tach sensor wire, and the spikes are much less prevalent, but still occur.
Any ideas about whats causing this? :-/