Space research service
# Space research service

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) – defined as «A radiocommunication service in which spacecraft or other objects in space are used for scientific or technological research purposes.»

## See also

    Main articles: Radio station and Radiocommunication service

## Frequency allocation

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

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
* 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

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