Garmin has introduced the GPS 20A, an ADS-B Out compliant WAAS GPS position source for experimental amateur-built (EAB) and light-sport aircraft (LSA).
For experimental aircraft owners that already have a Mode S Extended Squitter (ES) transponder, such as the GTX 23ES, the non-certified GPS 20A provides aircraft owners with a rule-compliant WAAS position source, which meets the TSO performance requirements set forth by the FAA, according to company officials.
The GPS 20A provides experimental amateur-built and LSA customers with a simple, low-cost ADS-B Out position source, Garmin officials note. WAAS/SBAS position information is provided by the GPS 20A and is compatible with a wide range of 1090 ES transponders.
Garmin and G3X Touch customers who have incorporated the GTX 23ES Mode S transponder or a GTX 330ES transponder in their EAB/LSA aircraft can install the GPS 20A by connecting a single RS-232 interface to provide Garmin ADS-B data to the transponder to make their system ADS-B Out compliant, company officials explained.
The GPS 20A may also be paired with compatible third-party Mode S transponders. Additionally, a secondary interface can optionally provide industry standard GPS data to third-party systems, which can be utilized as a WAAS GPS data source.
The GPS 20A is not an FAA-approved product and is not eligible for installation in certified aircraft.
The GPS 20A WAAS GPS is expected to be available for $845. The GPS 20A, GA 35 WAAS antenna and install kit is available for $1,225. The new products are anticipated to become available in the third quarter of 2015.