MORE ON TRANSPONDERS
In the Mode C transponder upgrade article in the June 2021 issue of Aviation Consumer, Larry Anglisano mentions Mode C units for “aircraft [that] just don’t need ADS-B.”
Sorry, Larry, but the ones that don’t need ADS-B are the ones that never leave the ground. See and avoid is a nice concept but, for me, backing it up with audio traffic alerts from ForeFlight makes flying much safer. ADS-B is a cheap collision-avoidance system and should be in every aircraft.