ITU R M 1841:2013
ITU R M 1841:2013 Compatibility Between Fm Sound-Broadcasting Systems In The Frequency Band Of About 87-108 Mhz And The Aeronautical Ground-Based Augmentation System In The Frequency Band 108-117.975 Mhz
Table of Contents
Annex1-Interferencemechanisms,systemparametersandcompatibilityassessmentcriteria
1Backgroundandintroduction
2Typesofinterferencemechanisms
3Compatibilityassessmentparameters
4Compatibilityassessmentcriteria
Appendix1toAnnex1-GBAScoverageandminimum
fieldstrengths
Annex2-Generalassessmentmethod
1Introduction
2LocationandheightofGBAStestpointsforeachDOC
3Applicationofgeneralassessmentmethod
4Broadcastingstationantennacorrections
Appendix1toAnnex2-Locationoftestpointswith
maximuminterferencepotential
1Aircraftatthesameheightasabroadcasting
stationantenna
2Aircraftatagreaterheightthanabroadcasting
stationantenna
3Relationshipbetweenverticalandhorizontal
separationdistances
4Locationofmaximuminterferencepotential
5TestpointsforGBASpositioningservice
6TestpointsforGBASprecisionapproachservice
7Effectofincreasedtestpointheight
Appendix2toAnnex2-Considerationsregardingmaximum
fieldstrengthandinterference
potential
1Maximumfieldstrength
2MaximumTypeB1interferencepotential
Annex3-Detailedcompatibilityassessmentand
practicalverification
1Introduction
2Mattersrequiringspecialattention
3Multipleinterference
4Detailedcompatibilityassessment
5Practicalverificationprocess
6Summary
Annex4-Definitions