Radionavigation service

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Accuracy of (2-d) navigation systems
Radio stations of the RNS, VOR/ DME

Radionavigation service (short: RNS) is – according to Article 1.42 of the International Telecommunication Union´s (ITU) Radio Regulations (RR)[1] – defined as «A radiodetermination service for the purpose of radionavigation

This service is a so-called safety-of-life service, must be protected for Interferences, and is essential part of Navigation.

See also

Classification[edit]

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

Frequency allocation[edit]

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     
135.7–137.8 kHz
FIXED
MARITIME MOBILE
Amateur
135.7–137.8 kHz
FIXED
MARITIME MOBILE
Amateur
135.7–137.8 kHz
FIXED
MARITIME MOBILE
RADIONAVIGATION
Amateur

External links[edit]

Sources / references[edit]

  1. ^ ITU Radio Regulations, Section IV. Radio Stations and Systems – Article 1.42, definition: radionavigation service
  2. ^ ITU Radio Regulations, CHAPTER II – Frequencies, ARTICLE 5 Frequency allocations, Section IV – Table of Frequency Allocations