EDIT: If you guys like my blog, you might check out this blog as well. Interesting stuff over there too!
"UVB-76 (sometimes referred to as UZB-76, but recently MDZhB) is the call sign 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 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. On rare occasions, the buzzer signal is interrupted and a voice transmission in Russian takes place. Despite much speculation, the actual purpose of this station remains unknown to the public."
IN SOVIET RUSSIA, RADIO LISTEN TO YOU
So basically this thing makes a terrible buzzing noise 24/7, and has been for nearly 20 years. Occasionally a voice will interrupt the buzzing to read encoded messages as seen here. Sometimes it makes other horrible noises too.
This is most definitely Russian military, but for what? Does it have ties to their nuclear system? Nobody knows 100%, it seems, but that would be my logical guess. Either way, this gives me the fucking willies, and at this point I'll be quite paranoid if the station ever goes completely off air.