RECOMMENDATION ITU-R SF.355-4 - FREQUENCY SHARING BETWEEN SYSTEMS IN THE FIXED-SATELLITE SERVICE AND ... ANNEX 1 - Frequency sharing between systems in the fixed-satellite service and the fixed service 1. Introduction 2. Sharing factors 3. Sharing methods 4. System trade-offs for sharing between fixed-satellite systems and radio-relay systems APPENDIX 1 TO ANNEX 1 - Protection of space stations in the fixed-satellite service against interference ... 1. Limitation of e.i.r.p. 2. Limitation of power into the antenna APPENDIX 2 TO ANNEX 1 - Sharing of frequency bands between systems in the fixed-satellite service and ... 1. Introduction 2. Trans-horizon radio-relay systems 3. Geometric considerations 4. Interference considerations 4.1 Interference to and from satellites 4.2 Interference to and from earth stations 5. Conclusions