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We use an SDR radio to talk to our Apollo transponder.
Apollo Comms Playlist: • Apollo Comms Part 1: O...
Balint and Austin ISEE-3 Reboot SDR presentation: • Communicating with a S...
Links to doc:
www.curiousmarc.com/space/apo...
virtualagc.github.io/virtuala...
www.ibiblio.org/apollo/
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00:00 Recap of previous episodes
00:59 Using SDR for recreating the Apollo ground station
01:53 What is a Software Defined Radio
04:29 Introducing the team that re-contacted a lost NASA spacecraft with SDR
08:41 Apollo SDR receiver using GNU radio
12:38 SDR receiver sees the Apollo signal
14:39 SDR transmitter locks the Apollo receiver
17:51 Transmitting voice down: subcarrier explanation
20:48 Programming and testing the SDR downvoice demodulator
21:58 Receiving voice from the Moon!