May 11, 2025 • 34 mins
"There's absolutely no information in the signal."
For decades now, an odd and mysterious audio signal has operated on the shortwave spectrum. Since the late 1970s, a strange pulsating sound has repeated at 4625 kilohertz. There is never a formal introduction. There are no hosts or music. Only on occasion will a voice step in, and when it does, it reads off some words and names in a monotonous Russian accent before disappearing once more.
No country or agency has ever attempted to claim or explain the signal. Rumors persist about its purpose: everything from a "dead hand" nuclear deterrent controlled by the Russian government to a channel marker acting as a placeholder. However, after more than four decades, the signal's meaning remains unknown to the world at large...
Research & writing by Amelia White
Hosting, production, and writing by Micheal Whelan
Learn more about this podcast at http://unresolved.me
If you would like to support this podcast, consider heading to https://www.patreon.com/unresolvedpod to become a Patron or Producer
Become a supporter of this podcast: https://www.spreaker.com/podcast/unresolved--3266604/support.
For decades now, an odd and mysterious audio signal has operated on the shortwave spectrum. Since the late 1970s, a strange pulsating sound has repeated at 4625 kilohertz. There is never a formal introduction. There are no hosts or music. Only on occasion will a voice step in, and when it does, it reads off some words and names in a monotonous Russian accent before disappearing once more.
No country or agency has ever attempted to claim or explain the signal. Rumors persist about its purpose: everything from a "dead hand" nuclear deterrent controlled by the Russian government to a channel marker acting as a placeholder. However, after more than four decades, the signal's meaning remains unknown to the world at large...
Research & writing by Amelia White
Hosting, production, and writing by Micheal Whelan
Learn more about this podcast at http://unresolved.me
If you would like to support this podcast, consider heading to https://www.patreon.com/unresolvedpod to become a Patron or Producer
Become a supporter of this podcast: https://www.spreaker.com/podcast/unresolved--3266604/support.
Mark as Played
Popular Podcasts
United States of Kennedy
United States of Kennedy is a podcast about our cultural fascination with the Kennedy dynasty. Every week, hosts Lyra Smith and George Civeris go into one aspect of the Kennedy story.
Stuff You Should Know
If you've ever wanted to know about champagne, satanism, the Stonewall Uprising, chaos theory, LSD, El Nino, true crime and Rosa Parks, then look no further. Josh and Chuck have you covered.
Dateline NBC
Current and classic episodes, featuring compelling true-crime mysteries, powerful documentaries and in-depth investigations. Follow now to get the latest episodes of Dateline NBC completely free, or subscribe to Dateline Premium for ad-free listening and exclusive bonus content: DatelinePremium.com