Fixed service
In telecommunications, a fixed service (or fixed radiocommunication service) is a radiocommunication service between specified fixed points.[1]
Classification
In accordance with ITU Radio Regulations (article 1) variations of this radiocommunication service are classified as follows:
Fixed service
- Fixed-satellite service (article 1.21); Fixed station (article 1.66)
- Inter-satellite service (article 1.22)
- Earth exploration-satellite service (article 1.51)
- Meteorological-satellite service (article 1.52)
Examples
In line to national regulations there are numerous radio applications in accordance with ITU RR article 1.20, fixed service. A typical utilisation in English speaking countries might be fixed wireless. For detail information see main article fixed wireless.
The radio utilisations below are also examples in order to provide fixed service:
- Radio relay
- Troposcatter radiocommunication
- Embassy radiocommunication, between fixed point
Frequency allocation
The allocation of radio frequencies is provided according to Article 5 of the ITU Radio Regulations (edition 2012).[2]
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
- exclusive or shared utilization: is within the responsibility of administrations
However, military usage, in bands where there is civil usage, will be in accordance with the ITU Radio Regulations. In NATO countries military fixed utilizations will be in accordance with NATO Joint Civil/Military Frequency Agreement (NJFA).
- Example of frequency allocation 8.3–110 kHz
| Allocation to services | ||
| Region 1 | Region 2 | Region 3 |
14-19.95 FIXED
| ||
References / sources
- ↑ ITU Radio Regulations, Section IV. Radio Stations and Systems – Article 1.20, definition: fixed service / fixed radiocommunication service
- ↑ ITU Radio Regulations, CHAPTER II – Frequencies, ARTICLE 5 Frequency allocations, Section IV – Table of Frequency Allocations
- International Telecommunication Union (ITU)
- Earth exploration-satellite service. ITU, Genf 2011. ISBN 92-61-13761-X
