service (ACC or FIS), only the distance of the radio horizon to the nearest limit of the airborne service has been provided (25 NM plus range airborne service). Sharing with airborne services however is unlikely to occur since an (exclusive) sub-band has been allotted by ICAO for AS communication (121.600-121.975 MHz). --------------- Appendix A General methodology for compatibility analysis of aeronautical radio systems including the determination of frequency and distance separation for radio systems Appendix B Calculation of separation distances for VHF air-ground communication systems operating in the band [112] [117.975] -137 MHz. Appendix C Terms and definitions
service (ACC or FIS), only the distance of the radio horizon to the nearest limit of the airborne service has been provided (25 NM plus range airborne service). Sharing with airborne services however is unlikely to occur since an (exclusive) sub-band has been allotted by ICAO for AS communication (121.600-121.975 MHz). --------------- Appendix A General methodology for compatibility analysis of aeronautical radio systems including the determination of frequency and distance separation for radio systems Appendix B Calculation of separation distances for VHF air-ground communication systems operating in the band [112] [117.975] -137 MHz. Appendix C Terms and definitions
ACP-WGF22-WP09-VHF%20COM%20frequency%20planning.docx