Nondirectional beacon

{
  "id": "MLC-T-AVN-000664",
  "term": "Nondirectional beacon",
  "field": "Aviation and air traffic control",
  "definition": "An L/MF or UHF radio beacon transmitting nondirectional signals whereby the pilot of an aircraft equipped with direction finding equipment can determine his/her bearing to or from the radio beacon and “home” on or track to or from the station. When the radio beacon is installed in conjunction with the Instrument Landing System marker, it is normally called a Compass Locator.",
  "abbreviation": "NDB",
  "synonyms": [
    "Beacon",
    "Radio beacon"
  ],
  "see_also": [
    "Automatic direction finder",
    "Compass locator"
  ],
  "references": [
    "FAA Pilot/Controller Glossary"
  ],
  "url": "https://mlchart.com/terminology/aviation/nondirectional-beacon/"
}