EWBS (Emergency Warning Broadcast System)
ISDB-T

The Emergency Warning Broadcast System (EWBS) incorporates new technology into early warning systems alongside traditional methods of communication. EWBS is a remote activation system for Radio & TV that transmits alert/warning information to viewers and listener about a relevant disaster.

EWBS is a feature of the Integrated Services Digital Broadcast-Terrestrial (ISDB-T) system, which is initially created by Japan. The ISDB-T standard has been adopted by more than 15 countries in recent years.