ORLANDO, Fla. – As Tropical Storm Erin churns across the Atlantic, there is now another source for emergency information around the clock – on the radio and on the internet. But it’s not just weather ...

Growing up, the Emergency Broadcast System was a kind of sonic boogeyman. Its signature harsh tone would cut through your favorite TV show or song on the radio, announcing that “THIS IS ONLY A TEST”.

Several broadcast technology developers say they can offer the FCC solutions that would push EAS beyond its current limits and possibly reshape emergency alerting in the United States. The FCC is in ...