https://www.youtube.com/watch?v=kNuf8zcLdHk
https://www.thingiverse.com/thing:2627680
http://www.uhf-satcom.com/lband/

https://hackaday.com/2015/08/21/decoding-satellite-based-text-messages-with-rtl-sdr-and-hacked-gps/
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