Aeronautical mobile-satellite (OR) service

Aeronautical mobile-satellite (OR)°° service (short: AMS(R)S;  | also: aeronautical mobile-satellite (R) radiocommunication service) is – according to Article 1.37 of the International Telecommunication Union's (ITU) Radio Regulations (RR)[1] – defined as «An aeronautical mobile-satellite service reserved for communications relating to safety and regularity of flights, primarily outside national or international civil air routes.»

See also
Principle of AMS(OR)S
Remote control of a military drone via aeronautical mobile-satellite (OR)°° service

Classification

This radiocommunication service is classified in accordance with ITU Radio Regulations (article 1) as follows:
Mobile service (article 1.24)

(R)° – abbreviation to route flights (route)
(OR)°° – abbreviation to flights others than on routes (off-route)

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 with-in 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

References / sources
  1. ITU Radio Regulations, Section IV. Radio Stations and Systems – Article 1.37, definition: aeronautical mobile-satellite (OR)°° service / aeronautical mobile-satellite (OR)°° radiocommunication service
  2. ITU Radio Regulations, CHAPTER II – Frequencies, ARTICLE 5 Frequency allocations, Section IV – Table of Frequency Allocations
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