Emergency Action Messages (EAM) broadcast on the High Frequency Global Communications System (HFGCS) at 11175 kHz provide critical alerts to USA nuclear forces. These messages, monitored via the website missileer.watch, are transmitted on the USB frequency and are essential for strategic command operations. The platform offers real-time access to these broadcasts, allowing users to listen and read along with the audio.
All recordings and decodes are released under the CC0 1.0 public domain dedication, encouraging attribution to missileer.watch. The site operates with privacy-focused analytics, using Cloudflare Web Analytics to count visits without deploying tracking cookies. User sign-in is optional and only sets a cookie to maintain session status.
Times are provided in UTC (Zulu). The service maintains two public files, archive.json and status.json, which are read to facilitate the listening experience. This initiative serves as a unique window into the communication protocols of US nuclear forces, offering both historical and current operational insights to enthusiasts and researchers alike.
Source: Hacker News · Summarized by HeadlinesBriefing