Radionavigation-satellite service


A radionavigation-satellite service is "a radiodetermination-satellite service used for the purpose of radionavigation. This service may also include feeder links necessary for its operation".
RNSS is regarded as a safety-of-life service and an essential part of navigation which must be protected from interferences.

Classification

ITU Radio Regulations classifies radiocommunication services as:
; Examples of RNSS use
The allocation of radio frequencies is provided according to Article 5 of the ITU Radio Regulations.
To improve harmonisation in spectrum utilisation, most service allocations are incorporated in national Tables of Frequency Allocations and Utilisations within the responsibility of the appropriate national administration. Allocations are: