Appendix 4: Frequency Spectrum Considerations
Appendix 4:
Frequency Spectrum Considerations
Frequency spectrum availability has always been critical for aviation and is expected to become even more critical with the implementation of new technologies. In addition to the ve technology Roadmaps pertaining to communication, navigation, surveillance (CNS), information management (IM) and avionics, a global aviation spectrum strategy for the near-, medium- and long-term must support implementation of the GANP.
A long-term strategy for establishing and promoting the ICAO position for International Telecommunication Union World Radiocommunication Conferences (ITU WRCs) was adopted by the ICAO Council in 2001. The strategy prescribes the development of an ICAO position on the individual issues detailed in the agenda of an upcoming WRC, developed
in consultation with all ICAO Member States and relevant international organizations. The strategy also includes
a detailed ICAO policy on the use of each and every aeronautical frequency band. The policy is applicable to all frequency bands used for aeronautical safety applications.
An overall policy and a set of individual policy statements for each aviation frequency band can be found in Chapter 7 of the Handbook on Radio Frequency Spectrum Requirements for Civil Aviation, including the Statement of Approved ICAO Policies (Doc 9718).
Both the position and the policy are updated after each WRC and approved by the ICAO Council. The strategy for developing the position and policy can presently be found in Attachment E to Doc 9718.
The ICAO position and policy for the ITU WRC horizon extends beyond the 15-year time frame of the current GANP and anticipates the development of the future aviation system. However, based on the outcome of WRC 12, the ASBU Modules and the technology Roadmaps, an update of the strategy for frequency spectrum will be managed by ICAO
to anticipate changes and de ne safe mechanisms for redundancy between essential components of the future
air navigation system.