ITU R SF 765:2003
ITU R SF 765:2003 Intersection Of Radio-relay Antenna Beams With Orbits Used By Space Stations In The Fixed-satellite Service
Table of Contents
Annex1-Generalconsiderationsconcerningtheintersectionofradio-relayantennabeams...
1Introduction
2Somecharacteristicsoftheantennabeamsofterrestrial
radio-relaysystems
3Directionstocircularequatorialorbits
4Unphasedsatellitesystems
5Geometricrelationsbetweenthedirectionsofradio-relay
antennas...
5.1Theeffectsofatmosphericrefraction
5.2Useofagraphicalmethodfordeterminationofazimuths
tobeavoided
5.3Analyticalmethod
Annex2-Analyticalmethodforcalculatingseparationangles
betweenradio-relayantennabeams...
1Introduction
2Preliminarycalculations
2.1Preliminaryelimination
2.2Classificationofmainbeamdirections
3Preliminarydeterminationoftheseparationangle
4Detailedcalculationsoftheseparationangle
Appendix1toAnnex2-Acomputerprogramforcalculating
separationangles