The tower stands about 40 feet in height and is surrounded by a fence.
The signal repeats a message from Bob Anderstein that says he has taken shelter in a nearby drainage culvert with his wife and his son. He also says that his son is very sick and needs medical attention, he pleads for anyone that hears his message to help.
If the Lone Wanderer walks just a bit to the southeast of the relay tower, downhill near a few rocky outcrops they will see the end of the metal drainage pipe. Enter, and at the end of the tunnel they will find two doors. The one on the right contains the long-dead bodies of Mr. Anderstein and his wife, but no son. There's a lunchbox, first aid box, and some other random supplies.
The opposite side of the tunnel contains the ham radio that is broadcasting the signal.
- D.C. Journal of Internal Medicine, a pre-War book, and Mentats in the drainage chamber (Signal Oscar Zulu) southeast of relay tower KX-B8-11. They are on a table behind the door on the left.
- Southeast of the drainage chamber, you can find a copy of Guns and Bullets in the hilltop farm ruins outhouse. A copy of Dean's Electronics can be found in the irradiated container a little further.
- There is a 'Type A' random encounter site on the east side of the relay tower between the fence and a nearby rock face.
- If the Lone Wanderer stands on the gridline directly between relay tower KX-B8-11 and the grisly diner and walks due north, they will come across a pile of cars stacked together to form a shelter over an outhouse and a bathtub. Next to the bathtub, in the radioactive goo, are a couple of locked ammunition boxes (easy), and in the bathtub itself a Nuka-Cola Quantum.
- Between here and Chaste Acres Dairy Farm, the player may encounter 2 or 3 Enclave soldiers and an officer traveling north east as if headed for the MDPL-16 power station.
- The Lone Wanderer can reach the radio tower power switch without unlocking the gate, since it's located close enough to the fence.
Relay tower KX-B8-11 appears only in Fallout 3.