PROFICIENCY & EFFICIENCY 78 OWNERSHIP 86 DOGFIGHT 88 AVIONICS 90 WX WATCH 37% 92 NEVER AGAIN of AOPA members “strongly agree” that the cost of ADS-B avionics is excessive. AUTOMATIC DEPENDENT SURVEILLANCE-BROADCAST is a datalink technology that uses satellite-based navigation and positioning information to transmit aircraft location and altitude to air traffic controllers and other nearby aircraft. The FAA is mandating by 2020 all pilots equip with ADS-B in all airspace where a Mode C transponder is required. GPS | OWNERSHIP | ADS-B moves forward ADS-B Teething pains and adoption strategies BY MIKE COLLINS Mode C CHARLES FLOYD 78 | AOPA PILOT September 2013