{
  "url": "https://openlegislation.uk/air-navigation-order-2016/schedule-6/part-2/paragraph-5",
  "json_url": "https://openlegislation.uk/air-navigation-order-2016/schedule-6/part-2/paragraph-5.json",
  "legislation": "uksi/2016/765",
  "legislation_title": "The Air Navigation Order 2016",
  "legislation_url": "https://openlegislation.uk/air-navigation-order-2016",
  "path": "schedule/6/part/2/paragraph/5",
  "kind": "paragraph",
  "number": "5",
  "heading": null,
  "text": "In this Part—\n“Airborne collision avoidance system” means an aeroplane system which—\n(a)conforms to requirements prescribed for the purpose;\n(b)is based on secondary surveillance radar equipment transponder signals;\n(c)operates independently of ground based equipment; and\n(d)is designed to provide advice and appropriate avoidance manoeuvres to the pilot in relation to other aeroplanes which are equipped with secondary surveillance radar and are in undue proximity;\n“Automatic direction finding equipment” means radio navigation equipment which automatically indicates the bearing of any radio station transmitting the signals received by such equipment;\n“Distance measuring equipment” means radio equipment capable of providing a continuous indication of the aircraft's distance from the appropriate aeronautical radio stations;\n“Mode A” means replying to an interrogation from secondary surveillance radar units on the surface to elicit transponder replies for identity and surveillance with identity provided in the form of a four digit identity code;\n“Mode C” means replying to an interrogation from secondary surveillance radar units on the surface to elicit transponder replies for automatic pressure-altitude transmission and surveillance;\n“Secondary surveillance radar equipment” means such type of radio equipment as may be notified as being capable of—\n(a)replying to an interrogation from secondary surveillance radar units on the surface; and\n(b)being operated in accordance with such instructions as may be given to the aircraft by the appropriate air traffic control unit;\n“VHF omni-range equipment” means radio navigation equipment capable of giving visual indications of bearings of the aircraft by means of signals received from very high frequency omni-directional radio ranges.",
  "extent": null,
  "status": null,
  "version": "current",
  "annotations": [],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/uksi/2016/765/schedule/6/part/2/paragraph/5",
    "retrieved_at": "2026-10-28T23:21:35.381803+00:00"
  },
  "licence": "Open Government Licence v3.0",
  "licence_url": "https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/",
  "attribution": "Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives."
}