Have been flying with the 330 and have found one thing. I will not fly without it or on a ifr flight plan anymore. I had been using flight following and it scares me on how much they miss. Buy miss
I mean 4 traffic warnings on 2 flights on the 330 and not a word from bay approach. I have found that the coverage is not every where you fly. For us it goes away at the salinas valley. (rural area) I am thrilled with in the areas it has coverage. I can not see any adverse effects of switching the a/p with the transponder. The other feature I like is the altitude deviation warning. This happen when you deviate more than 100 feet. Not that I deviate 100 feet but it is a nice feature ;}. For me it is a great way to get some collision avoidance in the cockpit for the busy air space.
We fly with the top garmin in the map mode (shows traffic on the map mode) and the number 2 garmin in the traffic page. Seem to work for us. I had to rate it I would rate it as a “would not fly without it” Kevin Moore has been flying with it for quit some time so maybe a pirep and what he has been finding for coverage can be coaxed from him.
I CAN NOT EXPRESS LOUD ENOUGH THAT WHEN ON FLIGHT FOLLOWING DO NOT LET YOUR GUARD DOWN!!! LOOK OUT THE WINDOW LIKE YOU DO NOT HAVE THE HELP. Will post coverage areas as I travel through out ca…Ed