Civil Alert System Broadcast

Civil Alert System Broadcast is a radio signal in Fallout 4. It can be received after extending the satellites at relay tower 0BB-915.

Location
The origin of the broadcast is a ham radio in a military bunker, which can be accessed from a hatch at the base of the southwestern satellite at the Fort Hagen satellite array.

Transcript
Оповещение системы гражданской обороны