2010-08-24 03:51 UTC
UVB-76 is the callsign of a shortwave radio station that usually broadcasts on the frequency 4625 kHz (AM suppressed lower sideband). It is known among radio listeners by the nickname The Buzzer. It features a short, monotonous About this sound buzz tone (help·info), repeating at a rate of approximately 25 tones per minute, for 24 hours per day. The station has been observed since around 1982.[1] On rare occasions, the buzzer signal is interrupted and a voice transmission in Russian takes place. Only three to four such events have been noted. Despite much speculation, the actual purpose of this station remains unknown.
I've been monitoring the transmission for several hours, after what sounded like a television or radio was placed close to the mic, and objects could be heard falling near the mic.
Several minutes ago, UVB-76 transmitted a sequence of Morse code signals.
I'm uploading my recordings now.
You can listen here: UVB-76
Here's some of the recordings I've gathered over the past few hours:
recording1-21-47-len.mp3 - FileSmelt File and Image Hosting
Start time: 02:31 PM Eastern
End time: 02:52 PM Eastern
Here's the morse code transmission: trans3morse-03-33pm_eastern.mp3 - FileSmelt File and Image Hosting
Recorded at 3:33PM Eastern; the actual transmission begins around 2:45 in the file. Also notice the beep just before and immediately after the morse code transmission.
