Federal Aviation Administration
FederalDC
Posted
Aug 3, 2026
Oct 2, 2026
Instrument Landing System Draft Specification
Equipment Comprising an Instrument Landing System (ILS). This specification describes the following equipment: a. Very High Frequency (VHF) Localizer Subsystem in section 3.3; b. Localizer Far-Field Monitor (FFM) Subsystem in section 3.3.6; c. Ultra High Frequency (UHF) Glide Slope Subsystem in section 3.4; d. VHF Marker Beacon Station in section 3.5; e. Remote Control Subsystem (RCS) in section 3.6; f. ILS/Distance Measuring Equipment (DME) Monitor Receiver Subsystem in section 3.7; g. ILS Remote Maintenance Monitoring (RMM) in section 3.8; h. Data Security in section 3.9. See attached file.