"According to Markey, AM radio operates at lower frequencies and longer wavelengths, enabling it to pass through solid objects and travel further than other radio waves — a feature not shared by #FM broadcasts. As a result, FEMA’s National Public Warning System — through which #FEMA delivers critical safety alerts to the public — operates through broadcast AM radio stations."

The shift to #EVs is slowly killing off #AMRadio — and that’s bad for #EmergencyBroadcasts

https://www.theverge.com/23633932/am-radio-discontinue-ford-tesla-markey-fema-fcc

The shift to EVs is slowly killing off AM radio — and that’s bad for emergency broadcasts

More car companies are discontinuing the use of AM radio, which could make it more difficult to broadcast emergency messages.

The Verge