AVIATION RADIO DIRECTION FINDERS AND NON-DIRECTIONAL BEACONS: PRINCIPLES OF OPERATION AND THEIR IMPORTANCE IN AVIATION

• Juraev Utkir

  4th Year Cadet of the Military Aviation Institute of the University of National Security and Defense of the Republic of Uzbekistan

  Author

This paper examines the role of aircraft radio direction finders and non-directional beacons (NDBs) in ensuring safe and accurate air navigation. Two categories of radio direction finding systems are considered: airborne and ground-based systems, including their classification and operational purpose. The operational principles of non-directional beacons are analyzed, with emphasis on their operating modes (“Homing” and “Communication”) and key system components such as the tone generator and call-sign keying unit. The study also discusses NDB types, coverage areas, and their application in approach and en-route navigation. Particular attention is given to signal transmission principles, identification procedures, and voice communication functionality within the system.

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