4 ms·
Uplink Downlink is a good, technical history: https://www.amazon.com/Uplink-Downlink-History-1957-1997-033-000-01241-1/dp/016066599X/ref=sr_1_1?dchild=1&keywor
by madengr 6y ago
Uplink Downlink is a good, technical history:
https://www.amazon.com/Uplink-Downlink-History-1957-1997-033-000-01241-1/dp/016066599X/ref=sr_1_1?dchild=1&keywords=uplink+downlink&qid=1613855940&s=books&sr=1-1 https://www.amazon.com/Uplink-Downlink-History-1957-1997-033...