All Steve asked was a valid, basic question and he’s getting swamped with everyone’s thoughts. I’ll join in. Dirtybird, that test is not valid. It showed that the ignition did not interfere with the radio for the period of time that you performed the test. That’s not long enough. That spark has the potential of containing frequency components from DC to light. Included in that spectrum is the spread spectrum range 2.4000Gig to 2.4080Gig. It does not happen all the time and that’s the problem. Guys are getting away with it and that’s good. But one of these days it could catch up with you and it has happened at the field I fly at with disastrous results. Like the old saying goes “Don’t ef with mother nature”. Dan.