OptionalcategoryILS approach category.
OptionaldmeDME channel designation (e.g. "032X", "038X").
OptionalglideGlide slope angle in degrees (typically around 3.0).
OptionalglideGlide slope class/type code (e.g. "GS" for standard glide slope, "GD" for glide slope with DME).
OptionalidentifierILS facility identifier (e.g. "I-ANB", "I-JFK").
OptionallocalizerLocalizer frequency in MHz (e.g. 110.9).
OptionallocalizerLocalizer front course bearing in magnetic degrees.
System type describing the installed component combination.
An Instrument Landing System installation at a runway end. Combines localizer, glide slope, and DME component data into a single structured object.