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We demonstrate the full Apollo uplink with simultaneous voice, data and ranging, as seen and demodulated on the Keysight MXA signal analyzer. Many thanks to Electro-Rent for sponsoring the Keysight equipment rental! ElectroRent: www.electrorent.com
Apollo Comms Playlist: • Apollo Comms Part 1: O...
The USB vacuum tube key shown in the video by Slava Tech on Etsy (no affiliation): www.etsy.com/listing/18251850...
Links to doc:
www.curiousmarc.com/space/apo...
virtualagc.github.io/virtuala...
www.ibiblio.org/apollo/
Our sponsors
- PCBWay: fast turn PCBs, www.pcbway.com
- ElectroRent: www.electrorent.com
- Keysight: test instruments: www.keysight.com
- Samtec: connectors: www.samtec.com
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00:00 Recap: Apollo's complex modulation stack
02:19 Running the Keysight VSA modulation analysis software
03:42 Phase modulation principle
06:02 Looking at the demodulated Apollo subcarriers
07:45 I added a tube to my spectrum analyzer!
08:04 Adding the ranging signal
10:18 Apollo's careful modulation weighting
11:19 Full Apollo uplink demo