That’s definitely good to know, I kept one, but have been pulling the batteries out of the rest I find and then dropping them or eating the radio to fuel my internal furnace.
What I’m talking about here would be complete strangers showing up, NPCs that spawned because of your broadcast. Folks showing up to help, at the very least temporarily, because you have won their hearts and minds with the knowledge of a threat which needs purging, promises of loot, or because they have been convinced to believe in your cause.