Greenbriar radio signal

The Greenbriar radio signal is a radio station in the Commonwealth $$ It can be picked up after extending the satellites at radio tower 3SM-U81.

Characteristics
The signal consists of a distress signal from a group of individuals who were hiding in an abandoned bunker, surrounded by unidentified creatures. The bunker is straight east of radio tower 3SM-U81 on the western bank of the river. The hatch down into the bunker is hidden in the bushes behind an iron barrel in a run-down campsite. There are two nearby campsites. The correct one has a picnic bench and a cooking station, the other one has some dead settlers and traders.

At higher levels, a mirelurk queen may spawn near the entrance of the bunker. Inside the bunker are two skeletons, a number of food coolers, a few first aid kits, a wooden crate, a hunting rifle, a suitcase, and the ham radio broadcasting the signal. The Sole Survivor can shut the radio off to end the broadcast.

Appearances
The Greenbriar radio signal appears only in Fallout 4.

Bugs
After doing the above steps, the radio signal keeps transmitting.