ITU R F 763:2005
ITU R F 763:2005 Data Transmission Over Hf Circuits Using Phase Shift Keying Or Quadrature Amplitude Modulation
Table of Contents
Annex1-Datatransmissionat2400/1200/600/300/150/75bit/soverHFcircuitsusingmulti-channel
voice-frequencytelegraphyandPSK
1Systemdescription
Annex2-Datatransmissionatratesupto3600bit/sover
HFcircuitsusingaserialtransmissionmodem
1General
2Modemoperatingmodes
2.1Semi-duplexforwarderrorcorrection(FEC)mode
2.2Full-duplexFECmode
2.3Automaticrepeatrequest(ARQ)mode
3Technicalcharacteristicsofthemodem
3.1Modulation
3.2Transcoding
3.3Framestructure
3.4Errorcorrectioncoding,interleaving
3.5Spectrumofthemodulatedsignal
3.6Frequencyerrortolerancebetweentransmissionand
receptionHFcarriers
4Interfaceswithotherequipment
4.1Modeminterfacewiththedataterminal
4.2Modeminterfacewiththetransmitterandthereceiver
4.3Qualityofperformanceofassociatedtransmittersand
receivers
Annex3-TransmissionsystemsusingPSK
1Introduction
2Theoreticalquestions
2.1Selectionofsignals
2.2Selectionofaprocessingalgorithm
3Descriptionofthesystem
4Experimentalinvestigations
5Conclusions
Annex4-Mode/polarizationdiversityinhigh-frequencyradio
datasystems
1Introduction
2Conclusions
Annex5-Datatransmissionatratesupto4800bit/sover
HFcircuitsusingaserialPSKorquadrature
amplitudemodulation(QAM)transmissionmodem
1General
2Features
3Specification
4Blockdiagramofsignalprocessing
5Framestructure
6Codingruleandconstellationdiagramof16-QAM
7Testdata
Annex6-Highdataratewaveforms
3200/4800/6400/8000/9600/12800bit/susinga
serialtransmissionmodemoverHFcircuits
1Introduction
1.1Overview
1.2Modulation
1.3Framestructure
1.4Codingandinterleaving
1.5Operationalfeaturesandmessageprotocols
1.6Performancecapabilities
1.7Associatedcommunicationsequipment