The Apollo extravehicular communications system.
EVCS developed for full duplexed voice communication and data telemetry between extravehicular astronauts on moon and flight controllers
Tollison, J. B.↗
Engineering topics
Publications and source records attributed to Tollison, J. B..
EVCS developed for full duplexed voice communication and data telemetry between extravehicular astronauts on moon and flight controllers