Space radio system (also: space system) is – according to article 1.110 of the International Telecommunication Union's (ITU) ITU Radio Regulations (RR)1 – defined as "any group of cooperating earth stations and/or space stations employing space radiocommunication for specific purposes".
Each system shall be classified by the service in which it operates permanently or temporarily.
References
References
- ITU Radio Regulations, Section IV. Radio Stations and Systems – Article 1.110, definition: space radio system / space system