Instrument Rating Exam · Practice

A GNSS Landing System (GLS) approach requires which ground component?

• A.A standard ILS glideslope transmitter that has been specially modified to operate with GPS
• B.A VHF omnidirectional range (VOR) station that is specially calibrated for precision approaches
• C.Multiple NDB stations positioned in a ring surrounding the aerodrome for lateral guidance
• D.A GBAS (Ground Based Augmentation System) ground station at or near the aerodrome — typically within 23 km