Frequency coordination is, preceding its use, the technical coordination of frequencies (including geostationary orbits) conducted by the authorities who are planning the radiocommunication network, on the basis of the Radio Regulation(RR) enacted by the International Telecommunication Union (ITU), in order to prevent the frequencies radiocommunication networks from causing harmful interference to the networks of foreign counties.
ITU Radiocommunication Service
A radiocommunication service is – according to Article 1.19 of the International Telecommunication Union's (ITU) Radio Regulations (RR) – defined as «A service…involving the transmission, emission and/or reception of radio waves for specific telecommunication purposes.»
Satellite services means communications capabilities that utilize an on-orbit satellite for transmitting the signal from one location to another. Those are the services that are of interest to the SatNOGS project.
The following are all the possible different satellite services:
|ITU RR Article||Description||Short||Links||In SatNOGS DB|
|1.21||Fixed-satellite service||FSS||Main article: Fixed-satellite service||YES|
|1.22||Inter-satellite service||ISS||Main article: Inter-satellite service||YES|
|1.23||Space operation service||SOS||Main article: Space operation service||YES|
|1.25||Mobile-satellite service||MSS||Main article: Mobile-satellite service||YES|
|1.29||Maritime mobile-satellite service||MMSS||Main article: Maritime mobile-satellite service||YES|
|1.35||Aeronautical mobile-satellite service||AMSS||Main article: Aeronautical mobile-satellite service||YES|
|1.39||Broadcasting-satellite service||BSS||Main article: Broadcasting-satellite service||YES|
|1.43||Radionavigation-satellite service||RNSS||Main article: Radionavigation-satellite service||YES|
|1.49||Radiolocation-satellite service||RLSS||Main article: Radiolocation-satellite service||YES|
|1.51||Earth exploration-satellite service||EESS||Main article: Earth exploration-satellite service||YES|
|1.52||Meteorological-satellite service||Main article: Meteorological-satellite service||YES|
|1.54||Standard frequency and time signal-satellite service||SFTSS||Main article: Standard frequency and time signal-satellite service||YES|
|1.55||Space research service||SRS||Main article: Space research service||YES|
|1.57||Amateur-satellite service||Amateur-satellite||Main article: Amateur-satellite service||YES|
In Libre Space Foundation we take frequency coordination, spectrum management and violations very seriously. Radio spectrum is a finite resource and we need to follow international regulations and practices to ensure fair access and usage of frequencies as services.
We use the following diagram to determine if a satellite should be marked for frequency misuse: