Category Archives: emergency alert system

Radio Apocalypse: The Emergency Broadcast System

Some sounds are capable of evoking instant terror. It might be the shriek of a mountain lion, or a sudden clap of thunder. Whatever your trigger sound, it instantly stimulates something deep in the lizard brain that says: get ready, danger is at hand.

For my part, you can’t get much scarier than the instantly recognizable two-tone alert signal (audio link warning) from the Emergency Broadcast System (EBS). For anyone who grew up watching TV in the 60s and 70s in the US, it was something you heard on at least a weekly basis, with that awful tone followed by …read more

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Posted in conelrad, EAS, EBS, emergency alert system, Emergency Broadcast System, fcc, Hackaday Columns, history, Original Art, public alert system | Leave a comment

Better Tornado Warnings with Polygons and Pi

Everyone pays close attention to the weather, but for those who live where tornadoes are prevalent, watching the sky can be a matter of life and death. When the difference between making it to a shelter or getting caught in the open can be a matter of seconds, it might make sense to build an internet enabled Raspberry Pi weather alert system.

We know what you’re thinking – why not just buy an off-the-shelf weather alert radio with Specific Area Message Encoding (SAME) reporting, or just rely on a smartphone app? As [Jim Scarborough] explains, living in the heart of …read more

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Posted in emergency alert system, NWS, Raspberry Pi, same, Specific Area Message Encoding, tornado, weather, weather radio | Leave a comment