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Extravehicular activity radiocommunication [1] traffic during the ISS-Expedition 36 (2013)
Ku band-antenna onboard ISS

Space research service (short: SRS | also: space research radiocommunication service) is – according to Article 1.55 of the International Telecommunication Union's (ITU) Radio Regulations (RR) [2] – defined as «A radiocommunication service in which spacecraft or other objects in space are used for scientific or technological research purposes

See also

Frequency allocation

The allocation of radio frequencies is provided according to Article 5 of the ITU Radio Regulations (edition 2012). [3]

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 (see example below)
  • secondary allocation: is indicated by small letters (see example below)
  • exclusive or shared utilization: is within the responsibility of administrations
Example of frequency allocation
Allocation to services
Region 1      Region 2           Region 3     
13.4-13.75 GHz   EARTH EXPLORATION-SATELLITE (active)
RADIOLOCATION
SPACE RESEARCH
Standard frequency and time signal-satellite (Earth-to-space)
14–14.25 GHz      FIXED-SATELLITE (Earth-to-space)
RADIONAVIGATION
Mobile-satellite (Earth-to-space)
Space research
14.25–14.3 GHz  FIXED-SATELLITE (Earth-to-space)
RADIONAVIGATION
Mobile-satellite (Earth-to-space)
Space research

References / sources

  1. ^ ITU Radio Regulations, Section I – General terms – article 1.6, definition: «Radiocommunication = Telecommunication by means of radio waves»
  2. ^ ITU Radio Regulations, Section IV. Radio Stations and Systems – article 1.55, definition: space research service / space research radiocommunication service
  3. ^ ITU Radio Regulations, CHAPTER II – Frequencies, ARTICLE 5 Frequency allocations, Section IV – Table of Frequency Allocations