172217 ⎘
Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves; Systems for determining direction or position line using amplitude comparison of signals transmitted simultaneously from antennas or antenna systems having differently oriented overlapping directivity-characteristics Elevational guidance systems, e.g. system for defining aircraft glide path
REDUCING MEASUREMENT AND REPORTING OVERHEAD FOR AERIAL VEHICLES
#2Systems and methods for providing a barometric altitude monitor
#3System and method for aiding the landing of an aircraft
#4Triggering an identification signal broadcast of a first navigational aid equipment using a tone in the voice band transmitted by a second navigational aid equipment
#5Method and device for verifying a guidance signal
#6Aircraft navigation performance prediction system
#7Airplane position assurance monitor
#8Airplane position assurance monitor
#9Systems and methods for receiving and processing multiple carrier communications and navigation signals
#10Unit comprised of a glidepath aerial and a support member
#11Signal distribution device operating in aircraft instrumental landing systems
#12Method and device for aiding the landing of an aircraft on a runway