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Modellers' Guide to Thor-Able Star and Delta Rockets (2374 words) |
 | Courier 1B was an early communication satellite that was the first to receive and relay messages through transponders. |
| Courier 1B was launched on October 4, 1960 and functioned for 17 days before it failed to respond to ground commands. |
| Courier 1B received the signal and then amplified it before re-transmitting it to another ground station. |
| Courier 1B: Information from Answers.com (255 words) |
| Launched 4 October 1960, Courier 1B was the world’s first active repeater satellite. |
| Courier was built by the Palo Alto, California–based Western Development Labs (WDL) division of Philco, previously known as Army Fort Monmouth Laboratories and now the Space Systems/Loral division of Loral Space and Communications. |
| Proposed by the U.S. Army Signal Corps in September 1958, this satellite was a flown in 1960. |
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