Vault 101 PA system

The Vault 101 PA System (PA - public announcement) is a radio station broadcasting inside Vault 101.

Availability
The radio station becomes available to the Lone Wanderer when they receive their first Pip-Boy 3000. The station broadcasts instrumental music, vault slogans, information, and radiation level. Inhabitants can hear the station on the vault's loudspeakers and through their Pip-Boy 3000s. If the Lone Wanderer returns to the vault during Trouble on the Homefront, the only thing that can be heard on the station is static, but it will remain in the radio menu.