ITU R SM 1009:1995
ITU R SM 1009:1995 Compatibility Between The Sound-broadcasting Service In The Band Of About 87-108 Mhz And The Aeronautical Services In The Band 108-137 Mhz
Table of Contents
ANNEX1-Interferencemechanisms,systemparametersandcompatibilityassessmentcriteria
1Backgroundandintroduction
2Typesofinterferencemechanisms
2.1TypeAinterference
2.2TypeBinterference
3Compatibilityassessmentparameters
3.1Introduction
3.2Characteristicsofaeronauticalsystems
3.3CharacteristicsofFMbroadcastingstations
3.4Receiverinputpower
4Compatibilityassessmentcriteria
4.1Standardinterferencethresholds
4.2Interferenceassessmentcriteria-MontrealILS
localizerandVORreceivers(seedefinitionsinAnnex4)
4.3Interferenceassessmentcriteria-ICAOAnnex101998
ILSlocalizerandVORreceivers
4.4Interferenceassessmentcriteria-ICAOAnnex101998
COMreceivers
APPENDIX1-TOANNEX1-ILSlocalizer/VORcoverageand
minimumfieldstrengths
ANNEX2-Generalassessmentmethod
1Introduction
1.1Philosophyofthegeneralassessmentmethod
1.2ILSlocalizer
1.3VOR
2LocationandheightofILSandVORtestpoints
2.1ILStestpoints
2.2VORtestpoints
3Applicationofgeneralassessmentmethod
3.1General
3.2Specialconsiderationsregardingcompatibility
assessments
4Broadcastingstationantennacorrections
4.1General
4.2Polarizationdiscrimination
4.3Horizontalradiationpattern
4.4Verticalradiationpatterncorrection
4.5Combinationofhorizontalandverticalradiationpatterns
APPENDIX1-TOANNEX2-Locationoftestpointswithmaximum
interferencepotential
1Aircraftatthesameheightasabroadcastingstationantenna
2Aircraftatagreaterheightthanabroadcastingstation
antenna
3Relationshipbetweenverticalandhorizontalseparation
distances
4Locationofmaximuminterferencepotential
5TestpointsforVOR
6TestpointsforILS
7Effectofincreasedtestpointheight
APPENDIX2-TOANNEX2-Considerationsregardingmaximum
fieldstrengthandinterferencepotential
1Maximumfieldstrength
2MaximumTypeB1interferencepotential
APPENDIX3-TOANNEX2-PredictionofILSfieldstrengthusing
two-raygeometry
ANNEX3-Detailedcompatibilityassessmentandpractical
verification
1Introduction
2Mattersrequiringspecialattention
2.1Predictionofbroadcastingfieldstrengths
2.2Testpointconsiderations
2.3Considerationsforcoordinatedstations
2.4Considerationofoperatingstations
3Multipleinterference
4Detailedcompatibilityassessment
5Practicalverificationprocess
6Summary
ANNEX4-Definitions
AeronauticalInformationPublication(AIP)
Antennacorrections
COM
Coursedeflectioncurrent
Courseline
Coursesector
Cut-offvalue
DesignatedOperationalCoverage(DOC)
DifferenceinDepthofModulation(DDM)
Distanceanddistancecalculation
EffectiveEarthradius
Elevationangle
Flag
Frontcoursesector
Futureimmunityaeronauticalreceivers
Glidepath
ICAOAnnex10
InstrumentLandingSystem(ILS)
ILSlocalizer
Line-of-sight
Minimumseparationdistances
Montrealaeronauticalreceivers
Potentialincompatibility
Providerstate
Runwaythreshold
Runwaytouchdownpoint
Slantpathdistance
Testpoint
Triggervalue
VHFOmnidirectionalRadioRange(VOR)