{"guid":"0f59250e-923d-55de-b98a-797d6c6a31a9","title":"Numbers Stations: Cold War, short waves","subtitle":null,"slug":"emf2016-112-numbers-stations-cold-war-short-waves","link":"https://www.emfcamp.org/schedule.frab","description":"For a period of time which coincided suspiciously closely with the Cold War, Europe's shortwave spectrum was full of mysterious radio stations which broadcast inscrutable strings of numbers, noises and tones. \r\n\r\nThis talk examines the history of the Numbers Stations and theories of what they might have been up to, using evocative archive recordings and a section where you can try your hand at decrypting a clandestine transmission.","original_language":"eng","persons":["Henry Cooke"],"view_count":541,"promoted":false,"date":"2016-08-05T20:30:00.000+02:00","release_date":"2016-08-06T02:00:00.000+02:00","updated_at":"2026-04-29T14:45:04.971+02:00","tags":[],"length":1784,"duration":1784,"thumb_url":"https://static.media.ccc.de/media/events/emf/2016/112-hd.jpg","poster_url":"https://static.media.ccc.de/media/events/emf/2016/112-hd_preview.jpg","timeline_url":"https://static.media.ccc.de/media/events/emf/2016/0f59250e-923d-55de-b98a-797d6c6a31a9-timeline.jpg","thumbnails_url":"https://static.media.ccc.de/media/events/emf/2016/0f59250e-923d-55de-b98a-797d6c6a31a9-thumbnails.vtt","frontend_link":"https://media.ccc.de/v/emf2016-112-numbers-stations-cold-war-short-waves","url":"https://api.media.ccc.de/public/events/0f59250e-923d-55de-b98a-797d6c6a31a9","conference_title":"Electromagnetic Field 2016","conference_url":"https://api.media.ccc.de/public/conferences/emf16","related":[{"event_id":1778,"event_guid":"7abembel5Nwrd3h_pRjeOQ","weight":2},{"event_id":3241,"event_guid":"ed9f21c0-530e-5bba-b4d4-7d3bd3e42a74","weight":3},{"event_id":3248,"event_guid":"f20fe948-cd33-535d-b7dd-00938781e212","weight":3},{"event_id":3254,"event_guid":"7eab2c8e-e7c8-5687-a77f-05ecd52f26cc","weight":4},{"event_id":3259,"event_guid":"e27f048b-bf94-5a87-a375-9f16985adc5f","weight":3},{"event_id":3262,"event_guid":"2444d38b-af0e-5403-a175-7b609dde96df","weight":2},{"event_id":3268,"event_guid":"e216ccb9-01df-5998-b9bd-9d79b0b2ef3b","weight":3},{"event_id":3273,"event_guid":"d5bf7c1a-9a79-51ae-8578-dfbaea559f80","weight":2},{"event_id":3302,"event_guid":"036c801c-d1d2-5502-b40c-242eb9779b0a","weight":2},{"event_id":3308,"event_guid":"5ab9f90a-a768-59c0-a0e4-a7ad9f61279c","weight":2},{"event_id":3309,"event_guid":"9335f1f1-c0c5-5378-b686-fffd6781c5ce","weight":2},{"event_id":3310,"event_guid":"22109d54-7493-532b-ab78-6db43bbe6cdf","weight":4},{"event_id":3317,"event_guid":"1baefd21-92b5-577c-b1a3-0e3f091e6033","weight":4},{"event_id":3325,"event_guid":"cb824f02-1810-5f6b-8928-54c26f985efa","weight":2},{"event_id":3460,"event_guid":"bb5e3e6e-d831-55e8-9d00-34a2da70f74b","weight":4},{"event_id":5934,"event_guid":"8769d3af-5098-515b-9197-24f80251a13a","weight":2}],"recordings":[{"size":21,"length":1773,"mime_type":"audio/opus","language":"eng","filename":"emf16-112-eng-Numbers_Stations_Cold_War_short_waves.opus","state":"new","folder":"opus","high_quality":false,"width":0,"height":0,"updated_at":"2016-08-06T11:46:18.779+02:00","recording_url":"https://cdn.media.ccc.de/events/emf/2016/opus/emf16-112-eng-Numbers_Stations_Cold_War_short_waves.opus","url":"https://api.media.ccc.de/public/recordings/11461","event_url":"https://api.media.ccc.de/public/events/0f59250e-923d-55de-b98a-797d6c6a31a9","conference_url":"https://api.media.ccc.de/public/conferences/emf16"},{"size":89,"length":1784,"mime_type":"video/webm","language":"eng","filename":"emf16-112-eng-Numbers_Stations_Cold_War_short_waves_webm-sd.webm","state":"new","folder":"webm-sd","high_quality":false,"width":720,"height":576,"updated_at":"2016-08-06T11:48:37.572+02:00","recording_url":"https://cdn.media.ccc.de/events/emf/2016/webm-sd/emf16-112-eng-Numbers_Stations_Cold_War_short_waves_webm-sd.webm","url":"https://api.media.ccc.de/public/recordings/11463","event_url":"https://api.media.ccc.de/public/events/0f59250e-923d-55de-b98a-797d6c6a31a9","conference_url":"https://api.media.ccc.de/public/conferences/emf16"},{"size":260,"length":1784,"mime_type":"video/webm","language":"eng","filename":"emf16-112-eng-Numbers_Stations_Cold_War_short_waves_webm-hd.webm","state":"new","folder":"webm-hd","high_quality":true,"width":1920,"height":1080,"updated_at":"2016-08-06T11:47:52.148+02:00","recording_url":"https://cdn.media.ccc.de/events/emf/2016/webm-hd/emf16-112-eng-Numbers_Stations_Cold_War_short_waves_webm-hd.webm","url":"https://api.media.ccc.de/public/recordings/11462","event_url":"https://api.media.ccc.de/public/events/0f59250e-923d-55de-b98a-797d6c6a31a9","conference_url":"https://api.media.ccc.de/public/conferences/emf16"},{"size":68,"length":1784,"mime_type":"video/mp4","language":"eng","filename":"emf16-112-eng-Numbers_Stations_Cold_War_short_waves_sd.mp4","state":"new","folder":"h264-sd","high_quality":false,"width":720,"height":576,"updated_at":"2016-08-06T11:49:22.757+02:00","recording_url":"https://cdn.media.ccc.de/events/emf/2016/h264-sd/emf16-112-eng-Numbers_Stations_Cold_War_short_waves_sd.mp4","url":"https://api.media.ccc.de/public/recordings/11464","event_url":"https://api.media.ccc.de/public/events/0f59250e-923d-55de-b98a-797d6c6a31a9","conference_url":"https://api.media.ccc.de/public/conferences/emf16"},{"size":197,"length":1784,"mime_type":"video/mp4","language":"eng","filename":"emf16-112-eng-Numbers_Stations_Cold_War_short_waves_hd.mp4","state":"new","folder":"h264-hd","high_quality":true,"width":1920,"height":1080,"updated_at":"2016-08-06T00:46:03.538+02:00","recording_url":"https://cdn.media.ccc.de/events/emf/2016/h264-hd/emf16-112-eng-Numbers_Stations_Cold_War_short_waves_hd.mp4","url":"https://api.media.ccc.de/public/recordings/11428","event_url":"https://api.media.ccc.de/public/events/0f59250e-923d-55de-b98a-797d6c6a31a9","conference_url":"https://api.media.ccc.de/public/conferences/emf16"},{"size":27,"length":1773,"mime_type":"audio/mpeg","language":"eng","filename":"emf16-112-eng-Numbers_Stations_Cold_War_short_waves.mp3","state":"new","folder":"mp3","high_quality":false,"width":0,"height":0,"updated_at":"2016-08-06T11:45:41.839+02:00","recording_url":"https://cdn.media.ccc.de/events/emf/2016/mp3/emf16-112-eng-Numbers_Stations_Cold_War_short_waves.mp3","url":"https://api.media.ccc.de/public/recordings/11460","event_url":"https://api.media.ccc.de/public/events/0f59250e-923d-55de-b98a-797d6c6a31a9","conference_url":"https://api.media.ccc.de/public/conferences/emf16"}]}