The best way to learn these systems is to buy our new Max Trescott's WAAS and GPS CD-ROM Course. New Max Trescott's WAAS and GPS CD-ROM Course If you want to learn more about WAAS in general, and about WAAS for the Garmin G1000 and Avidyne Entegra, visit our WAAS page. We'll talk first about the many new features of the Garmin GNS 430W and Garmin GNS 530W, and then we'll talk about how you can upgrade existing Garmin 430 and Garmin 530 units with WAAS capability. They'll also verify that the unit is located in a position that meets the FAA requirements for WAAS installations, or whether you'll need an external annunciator installed, which we'll discuss later. Your radio shop will do the installation for you, verify that your antenna meets the new WAAS specifications, and fill out the required FAA 337 form. Buying one of these new versions, or upgrading an existing unit, is an easy way to add WAAS capability to most any aircraft. In December 2006, Garmin started shipping the Garmin 430W and 530W.
The Garmin GNS 430 started shipping in 1997 and the Garmin GNS 530 was introduced a few years later.
