The Case for Low Power ADS-B for Drones

Let's just start with a few numbers and some back of the envelope math: 1.2 million drones were sold in the United States in 2016 1,800 reported pilot drone sightings in the United States in 2016 (up 25% from 2015) 0.4 miles - about the maximum distance I can see my DJI Phantom 4 with ["]