Communications - friznit/Unofficial-BDB-Wiki GitHub Wiki

Courier (BDB Messenger) was the world's first active repeater communications satellite. Telstar (BDB Kompfner) allowed the first live TV broadcasts between the US and Europe whilst Relay 1 (BDB Repeater), launched later the same year, broadcast live images between US and Japan. They can all operate as simple low power relay satellites for the early career game. The Interim Defense Communication Satellite Program (IDCSP), available slightly later, has a unique payload mechanism allowing an entire constellation of small relay satellites to be deployed in one launch.