Cellphone emergency broadcasts turned out to be not reliable during the Hawaiian Island fires.
RDS in FM has a special mode for emergency broadcasts and some countries use them. As FM signals easily cover a 50-75 mile radius, the coverage area is huge versus cellular emergency broadcasts requiring the towers to be powered on which have also failed during natural disasters.
Cellphone emergency broadcasts turned out to be not reliable during the Hawaiian Island fires.
RDS in FM has a special mode for emergency broadcasts and some countries use them. As FM signals easily cover a 50-75 mile radius, the coverage area is huge versus cellular emergency broadcasts requiring the towers to be powered on which have also failed during natural disasters.