Garmin International has unveiled the GTS 800 and GTS 820 traffic advisory systems (TAS), and the GTS 850 traffic alert and collision avoidance system (TCAS I).  These systems combine active and passive surveillance data to pinpoint specific traffic threats. The systems use Garmin’s patent-pending CLEAR CAS technology and correlates ADS-B (Automatic Dependent Surveillance-Broadcast) and radar targets to provide pilots with the most accurate picture of the sky. “The GTS series incorporates ADS-B In technology, which is one of the cornerstones of the FAA’s NextGen program and worldwide airspace infrastructure,” said Gary Kelley, Garmin’s vice president of marketing. “As ADS-B coverage improves worldwide, the expanded capabilities of the GTS system will be realized. We’re ready for the NextGen system.”