CONTENTS

Annex 1  Analysis of interference from HEO system space operation transmissions in FSS bands into GSO networks and some interference mitigation techniques
 1     Introduction
 2     TT&C links of example HEO system
 3     Impacts of interference from TT&C of example HEO system
 4     Techniques for mitigation of potential interference
        4.1     Uplink possibilities
        4.2     Downlink possibilities
 5     Conclusion
Appendix 1 to Annex 1  Methodology to determine the minimum telemetry carrier switch-off periods of a HEO satellite to comply with RR Article 22 epfd¯ limits