Aeronautical radionavigation service

Aeronautical radionavigation service (short: ARNS) is – according to Article 1.46 of the International Telecommunication Union's (ITU) Radio Regulations (RR)[1] – defined as «A radionavigation service intended for the benefit and for the safe operation of aircraft.»

ILS-antenna on Hannover Airport
VHF direction finder antenna of the ARNS on Deister nearby Hanover

This service is a so-called safety-of-life service, must be protected against interference, and is an essential part of navigation.

Classification

This radiocommunication service is classified in accordance with ITU Radio Regulations (article 1) as follows:
Radiodetermination service (article 1.40)

Frequency allocation

The allocation of radio frequencies is provided according to Article 5 of the ITU Radio Regulations (edition 2012).[2]

In order to improve harmonisation in spectrum utilisation, the majority of service-allocations stipulated in this document were incorporated in national Tables of Frequency Allocations and Utilisations which is within the responsibility of the appropriate national administration. The allocation might be primary, secondary, exclusive, and shared.

  • primary allocation: is indicated by writing in capital letters
  • secondary allocation: is indicated by small letters
  • exclusive or shared utilization: is within the responsibility of administrations
Example of frequency allocation
Allocation to services
Region 1      Region 2           Region 3     
5 000–5 010 MHz
AERONAUTICAL MOBILE-SATELLITE (R)
AERONAUTICAL RADIONAVIGATION
RADIONAVIGATION-SATELLITE (Earth-to-space

See also

References
  1. ITU Radio Regulations, Section IV. Radio Stations and Systems – Article 1.46, definition: aeronautical radionavigation service
  2. ITU Radio Regulations, CHAPTER II – Frequencies, ARTICLE 5 Frequency allocations, Section IV – Table of Frequency Allocations


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