{"guid":"import-94efdacada20c130ed","title":"Moonbounce Radio Communication","subtitle":"To the Moon and back in two seconds. The joy of light speed information travel","slug":"cccamp11-4597-moonbounce_radio_communication-en","link":"http://events.ccc.de/camp/2011/Fahrplan/events/4597.en.html","description":"Moon bounce, also known as EME (Earth-Moon-Earth), is a technique that allows two earth-based radio stations to communicate directly by using the moon as passive reflector.\n\nIt is the longest path two stations on Earth can use to establish direct connection with each other. First developed the late 1940s by the United States Navy it was used as a revolutionary way to communicate without the uncertainties of shortwave radio propagation. The development of artificial satellites completely obsoleted this usecase only a few years later but the technique itself is still one of the most challenging tasks in radio communication. Today it's Amateur Radio stations that are practising the art of Moon bounce. We are here to tell and to show you how it is done.\n","original_language":"eng","persons":["Andreas Schreiner","Clemens Hopfer","Patrick Strasser"],"view_count":185,"promoted":false,"date":"2011-08-13T02:00:00.000+02:00","release_date":"2011-08-14T02:00:00.000+02:00","updated_at":"2026-02-25T06:00:04.470+01:00","tags":["camp2011"," Hacker Space Program"],"length":2932,"duration":2932,"thumb_url":"https://static.media.ccc.de/media/conferences/camp2011/cccamp11-4597-moonbounce_radio_communication-en.jpg","poster_url":"https://static.media.ccc.de/media/conferences/camp2011/cccamp11-4597-moonbounce_radio_communication-en_preview.jpg","timeline_url":"https://static.media.ccc.de/media/conferences/camp2011/import-94efdacada20c130ed-timeline.jpg","thumbnails_url":"https://static.media.ccc.de/media/conferences/camp2011/import-94efdacada20c130ed-thumbnails.vtt","frontend_link":"https://media.ccc.de/v/cccamp11-4597-moonbounce_radio_communication-en","url":"https://api.media.ccc.de/public/events/import-94efdacada20c130ed","conference_title":"Chaos Communication Camp 2011","conference_url":"https://api.media.ccc.de/public/conferences/camp2011","related":[{"event_id":130,"event_guid":"import-088d6fa7916eb5736e","weight":2},{"event_id":164,"event_guid":"import-36dbb5c49c18934cd7","weight":4},{"event_id":1788,"event_guid":"-isG7Swsi8DaA62qztr0Kw","weight":4},{"event_id":2508,"event_guid":"ed4bcb3b-fe2d-4728-812d-a45dbd4d01db","weight":2},{"event_id":7415,"event_guid":"5af5134f-a56d-4a42-88e1-d179be98b8db","weight":2}],"recordings":[{"size":425,"length":2932,"mime_type":"video/mp4","language":"eng","filename":"cccamp11-4597-moonbounce_radio_communication-en.mp4","state":"downloaded","folder":"video","high_quality":true,"width":720,"height":576,"updated_at":"2016-01-27T11:02:39.666+01:00","recording_url":"https://cdn.media.ccc.de/events/camp2011/video/cccamp11-4597-moonbounce_radio_communication-en.mp4","url":"https://api.media.ccc.de/public/recordings/53","event_url":"https://api.media.ccc.de/public/events/import-94efdacada20c130ed","conference_url":"https://api.media.ccc.de/public/conferences/camp2011"},{"size":425,"length":2932,"mime_type":"video/webm","language":"eng","filename":"cccamp11-4597-moonbounce_radio_communication-en.webm","state":"downloaded","folder":"video","high_quality":true,"width":720,"height":576,"updated_at":"2016-01-27T11:02:39.699+01:00","recording_url":"https://cdn.media.ccc.de/events/camp2011/video/cccamp11-4597-moonbounce_radio_communication-en.webm","url":"https://api.media.ccc.de/public/recordings/52","event_url":"https://api.media.ccc.de/public/events/import-94efdacada20c130ed","conference_url":"https://api.media.ccc.de/public/conferences/camp2011"},{"size":425,"length":2932,"mime_type":"video/ogg","language":"eng","filename":"cccamp11-4597-moonbounce_radio_communication-en.ogv","state":"downloaded","folder":"video","high_quality":true,"width":720,"height":576,"updated_at":"2014-05-10T15:26:12.404+02:00","recording_url":"https://cdn.media.ccc.de/events/camp2011/video/cccamp11-4597-moonbounce_radio_communication-en.ogv","url":"https://api.media.ccc.de/public/recordings/54","event_url":"https://api.media.ccc.de/public/events/import-94efdacada20c130ed","conference_url":"https://api.media.ccc.de/public/conferences/camp2011"}]}