From a lonely rusted tower in a forest north of Moscow a mysterious short wave radio station transmitted day and night. For at least the decade leading up to 1992, it broadcast almost nothing but beeps; after that, it switched to buzzes, generally between 21 and 34 per minute, each lasting roughly a second — a nasal foghorn blaring through a crackly ether.
<B>UVB-76</B>, also known as <B>The Buzzer</B>, is the nickname given by radio listeners to a shortwave radio station that broadcasts on the frequency 4625 kHz. It broadcasts 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. On rare occasions, the buzzer signal is interrupted and a voice transmission in Russian takes place. It has been active since at least the late 1970s or early 1980s, when the first reports were made of a station on this frequency. Its origins have been traced to Russia, but although several theories with varying degrees of plausibility exist, its actual purpose remains unknown to the public.