The ADS-B Transponder requirement for non-commercial aviation took decades. And oh, how we howl at the expense! $2500 so your airplane pings out its position a

The ADS-B Transponder requirement for non-commercial aviation took decades. And oh, how we howl at the expense! $2500 so your airplane pings out its position and heading. I stopped flying right about then, mid-2000s, so I never had more than a hand-held GPS to go along with the usual radio stack. https://en.m.wikipedia.org/wiki/Automatic_Dependent_Surveillance%E2%80%93Broadcast https://en.m.wikipedia.org/wiki/Automatic_Dependent_Surveill...