Signal Oscar Zulu is a radio signal southeast of Relay Tower KX-B8-11, northeast of the Temple of the Union, and far south of the Republic of Dave. When activated by a switch on a transformer below the tower, it broadcasts a plea for medical assistance for the son of Bob Anderstein. This is one of nine drainage chambers with a ham radio signal. The message repeats:
If anyone can hear this, this is Bob Anderstein.
My family and I have taken refuge in a drainage chamber not too far from a radio relay tower outside of D.C. My boy is very sick, needs medical assistance. Please help if you can. We're listening for your response. 3950 kilohertz.”
To the southeast of the relay tower is a small car on what remains of a road. When reached turn southwest and go down the hill, and you will see a sewer gate. Within are two small chambers. One is a living area with two adult skeletons (male and female) along with food, tin cans, a toy car, a lunchbox, surgical tubing, a crutch, and other assorted supplies (mainly medical). However, despite the message stating that Bob Anderstein has a young boy with him, there is no third child skeleton to be found. In the opposite chamber, there is a burnt out terminal and the ham radio used to broadcast the distress signal, as well as a pre-War book, a D.C. Journal of Internal Medicine, and purified water.