RECOMMENDATION ITU-R F.1107-1 - Probabilistic analysis for calculating interference into the fixed service from ... ANNEX 1 - Method of developing criteria for protecting the fixed service from emissions of space stations operating ... 1 Introduction 2 Geometric considerations 3 Interference calculations 4 Network simulation for interference determination APPENDIX 1 TO ANNEX 1 - Description of an example computer simulation program 1 Network assumptions 2 Input/output 3 Program operation 4 Sample scenario results 5 Listing OF RAD_REL.BAS ANNEX 2 - Information for assessing the interference into digital fixed service systems from emissions of space stations ... 1 Introduction 2 Station-by-station analysis 3 Multi-hop P-P FS systems 4 P-MP FS systems 5 Test area 6 Satellite constellation 7 pfd mask 8 FS parameters 9 Other considerations 9.1 Interference criteria 9.2 Propagation attenuation 9.3 Slightly inclined orbits 10 Output results APPENDIX 1 TO ANNEX 2 - Software model for probabilistic interference assessment on a multi-hop P-P basis 1 Introduction 2 Input parameters for model 2.1 Satellite parameters 2.2 FS performance criteria 2.3 FS test area parameters 2.4 FS station parameters 3 Parameter selection process 4 Commentary APPENDIX 2 TO ANNEX 2 - Derivation of I/Naggregate for individual FS receivers