Drainage Chamber

There are seven Drainage Chambers and two Sealed Cisterns scattered around the Capitol Wasteland. These are minor dungeons, and all are home to Fallout 3 radio stations broadcasting Morse Code (except Signal Yankee Bravo). The particular message is explained at length on the page for Kilo Bravo.

Many of the stations do not have a map marker, but can be easily found by looking for the tower. All(?) have a transformer at the base of the tower with a switch to throw that starts the encoded broadcast. The entry to the underground ham radio station will be nearby (check your local map or the links below if having trouble). Turning off the ham radio stops the transmission. Unlike common Ham Radios, Signal radios make a click when turned off.


 * Signal Alpha Lima (AL) - In northwest of the Fallout 3 map, 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 west edge of 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. Caution: Lots of traps!
 * Signal Yankee Bravo (YB) - In the northeast of the map, just south of Canterbury Commons. Feral Ghouls are broadcasting their heavy breathing.