When I did the 3500 words for flyer on this I did some research. Of the people I spoke to a very small number had had trouble with spurious alerts, and about ½ of these had traced it to power. I know from my own experience that this can case the problem, but I have had no issues with mine, which were not attributable to poor power. Having said this the device was intended to be used in GA aircraft, so if you put it in something with a lot of EM interference who knows what would happen.
My local flying club had just bulk purchased some units (at considerable discount) and the comments received back indicate a great deal of surprise at the number of aircraft which were getting close to them which were not spotted until after the unit had detected them. If any of your local flying clubs are interested in a talk on collisions avoidance, I would be happy to oblige as we lose far too many people to collisions and see and avoid needs all the help it can get.
Rod1