What are the goals of WAAS GPS?
A. The operational goal of the WAAS is to enable GPS/WAAS navigators to be the only radio navigation equipment required onboard the aircraft and to meet aviation radio navigation performance requirements for oceanic, remote area and domestic en route, terminal, non precision approach, LNAV/VNAV, and precision approach phases of flight. The WAAS signal provides the augmentation to GPS to obtain the required accuracy and integrity improvements for precision approaches. The TSO C146a receiver provides the higher update rate and the higher level of interference protection required. Within the WAAS coverage area, the level of service will be dependent on the user’s equipment. When the aircraft is outside the WAAS coverage area, the GPS/WAAS equipment will still be suitable for primary means of domestic enroute, terminal, and non-precision approach operations, as well as oceanic/remote-area navigation. Additional goals for GPS/WAAS are to provide: • Worldwide primary (sole) means radio navig
