Fallout 3 radio stations

Characteristics
Radio stations can be accessed with the Pip-Boy 3000 in the Capital Wasteland. Other radio signals can be found that are related to quests. While the sounds of the radio resonate with the local environment, it does not affect the Sneak skill.

Major stations

 * Enclave Radio
 * Galaxy News Radio (GNR)

Minor stations

 * Agatha's Station
 * Vault 101 PA System
 * People's Republic of America Radio
 * Pitt broadcast
 * Tenpenny Tower radio

Quest related temporary signals

 * Ranger emergency frequency
 * Vault 101 distress signal
 * Wernher's distress signal
 * Outcast distress signal
 * Recon craft Theta signal

Temporary signals
Finding ham radios, one can turn them on to hear the following:
 * Chinese radio beacon - Part of the Downed Chinese Pilot random encounter, a radio is found near the remains of a Chinese commando.
 * Signal Alfa Lima (AL) - In the northwest at broadcast tower KB5, just west of deathclaw sanctuary.
 * Signal Echo Foxtrot (EF) - Near north edge of map, south of Oasis.
 * Signal Kilo Bravo (KB) - Also in northwest, from WKML Broadcast Station, a bit southeast of Signal Alpha Lima and far south of Fort Constantine.
 * Signal Oscar Tango (OT) - Perhaps the closest to Megaton, head west-northwest to the Jury Street Metro station; it is a little south of it.
 * Signal Oscar Zulu (OZ) - In the northeast of the map, a bit southeast of relay tower KX-B8-11 and northeast of Temple of the Union.
 * Signal Papa November (PN) - Due west of Megaton near the west edge of the map, at a tower just west of the Charnel House. Southwest of Fort Bannister and northwest of Evergreen Mills.
 * Signal Sierra Romeo (SR) - On the west edge of the map at broadcast tower KT8, due north of Little Lamplight and northeast of Vault 87.
 * Signal Sierra Victor (SV) - In the southwest of the map, southeast of Jocko's Pop & Gas Stop.
 * Signal Yankee Bravo (YB) -In the northeast of the map, just south of Canterbury Commons.
 * One is set up as part of the public-address system in the Super-Duper Mart. Raiders using the store as a base use the PA system to alert others in the building.

Morse code signals
The Morse code signals can be decoded to decipher a message, and they must be turned on at the towers they are being broadcast from. These radio signals will become clearer the nearer one gets to the ham radio, not the tower that broadcasts the signal.