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When the same aid is used for both en-route and aerodrome purposes, a description shall also be given in section ENR 4.
ARINC 424
makes a distinction only for NDB. The Enroute NDB NAVAID file (DB) contains all enroute on-airway and off-airway NDBs. The Terminal NDB NAVAID file (PN) contains NDBs associated with the Airports and Heliport (see also section Aerodrome Served below). If a NDB is used in both the terminal and enroute environments, it appears in the Enroute NDB NAVAID (DB) file.
Navaid Designator & Name
A Navaid.designator is used to provide the coded identifier given to the navaid system.
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The Navaid.name is used for the long name given to the composite navaid. For the name of the navaid, maximum 60 upper case alpha and/or numerical characters and also some special characters may be used.
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Navaids of type VOR, DME, NDB, TACAN and Marker with purpose Aerodrome (A or AE) or used for terminal procedures (generally published in AIP section AD 2.19/3.18) will be assigned to one (or more) AirportHeliport.
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| Identifier | Data Encoding Rule | Justification | Data Verification Rule (UID) | Remarks | ||||||||||
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| NAV-101 | The Navaid.type The The Enroute NDB NAVAID file (DB) contains all enroute on-airway and off-airway NDBs within the geographical area of interest. The Terminal NDB NAVAID file (PN) contains NDBs associated with the Airports contained in Subsection 3.2.4.1 and Heliport contained in Section 3.3.3. attribute is mandatory. | Minimum AIP data set | TBD | |||||||||||
| NAV-102 | The Navaid.name attribute is mandatory. | Minimum AIP data set | TBD |
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| NAV-103 | The Navaid.designator attribute is mandatory. | Minimum AIP data set | TBD |
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| NAV-104 | If the Navaid.purpose is equal-to 'TERMINAL' or 'BOTH' either the Navaid.servedAirport or the Navaid.servedRunwayDirection shall be coded. | Minimum AIP data set (for Airport) PANS-AIM (Runway Direction) | TBD |
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| NAV-105 | If the Navaid.purpose is equal-to 'ENROUTE' neither the Navaid.servedAirport nor the Navaid.servedRunwayDirection shall be coded. | Data consistency | TBD | |||||||||||
| NAV-106 | Each instance of a Navaid shall be composed as a minimum of one NavaidEquipment. | Data consistency | TBD |
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See topic Navaid [NAV] and sub-pages of topic Navaid Equipment.