The database which is contained in this Annex consists of characteristics of operational and plannedGSO BSS networks and the associated feeder links provided in response to Circular Letters CR-92 and CR-116 for the purpose of arriving at recommended epfd masks which will help in sharing studies between GSO BSS and non-GSO FSS systems.GSO BSS networks and the associated feeder links provided in response to Circular Letters CR-92 and CR-1 16 for the purpose of arriving at recommended epfd masks which will help in sharing studies between GSO BSS and non-GSO FSS systems.