live satellite broadcast; live satellite feed
Refers to a live television or radio broadcast transmitted via satellite, often used in news or sports contexts.
The Olympic opening ceremony was broadcast live via satellite around the world.
生中継 is a general term for any live broadcast, while 衛星生中継 specifies that the transmission is done via satellite.
Compound of 衛星 (satellite) + 生 (live) + 中継 (relay/broadcast).