ITU R BS 1615:2011
ITU R BS 1615:2011 "Planning Parameters" For Digital Sound Broadcasting At Frequencies Below 30 Mhz
Table of Contents
Annex1-Minimumusablefieldstrengthsfordigitalsoundbroadcasting(DSB)(DigitalRadioMondiale
(DRM)system)atfrequenciesbelow30MHz
1Introduction
2Relevanttransmissionparameters
3Computationofminimumusablefieldstrength
4Furtherremarks
Appendix1toAnnex1-Procedureforestimation
oftheminimumusablefieldstrength
2Receiversensitivity
3Otherfactorstobeconsidered
Appendix2toAnnex1-RequiredS/Nratiosfor
DRMreception
1Introduction
2S/NvaluesforLF/MFbands
3S/NvaluesforHFbands
Appendix3toAnnex1-Predictionandmodellingof
radiowavepropagationforDSBat
frequenciesbelow30MHz
1Introduction
2PredictionofHFsky-wavepropagation
3PredictionofMFground-andsky-wavepropagation
4Modellingofpropagationchannels
Annex2-RFprotectionratiosforDSB(DRMsystem)at
frequenciesbelow30MHz
1Introduction
2RFprotectionratios
3RFpowerreductionforDSB
Appendix1toAnnex2-CalculatedRFprotectionratios
forDSB(DRMsystem)atfrequencies
below30MHz
1Introduction
2Calculationparameters
3RFprotectionratios
Appendix2toAnnex2-Methodofmeasurementsand
determinationofRFprotectionratios
1Methodofmeasurementsinaccordancewith
RecommendationITU-RBS.559
2DeterminationofRFprotectionratiosforDSBin
thebroadcastingbandsbelow30MHz
3Assumedsystemparameters
4Verificationofcalculationmethod
5Applicationfordigitallymodulatedsignals
6Summary
Appendix3toAnnex2-CalculatedRFprotectionratios
forDSB(DRMsystem)using18and
20kHzbandwidthsatfrequencies
below30MHz
1Background
2Basicparameters-Reminders
3Methodtoderiveprotectionratiosfor18and20kHz
DRMsignals
4Summary
Annex3-MeasuredRFprotectionratiosforIBOC
(inbandon-channel)DSBsystemintheMFband
1Introduction
2RFprotectionratios
3Channelspacing
4Night-timeandconsiderationsforsky-waveprotection
5Conclusion