Jury Street Metro Station

Jury Street Metro Station, as the name suggests, is a metro station. A nearby grocery store with some clever 'surprises', as well as a vacant diner. Also has a radio tower that once activated broadcasts a morse code signal. The frequency name is 'Oscar Tango' per your Pip-Boy 3000.

Appearances
Jury Street Metro Station appears in Fallout 3.

Oscar Tango
Once the power to the radio tower is restored it begins broadcasting morse code.

Morse code translation:

CQ CQ CQ DE OT OT OT K

CQ == calling anyone DE == this is K  == over

Who or what is OT?