Apollo Comms Part 3: Inside the S-Band Transponder
We take a closer look at the S-Band transponder from the Apollo command module, and marvel at the 5 transmitters and receivers it contains. The transponder was manufactured by Motorola, and is entirely solid-state.
0:00 Recap of previous episodes
1:56 Overall block diagram
5:49 Looking inside
11:18 Detailed explanation (with elevator music!)
16:28 Every wire of the transponder explained (in technicolor!)
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Music credits: Crinoline dreams by Kevin Macleod
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