UVB-76, a.k.a "The Buzzer"
The nickname that radio listeners have given a radio station. The transmissions could be coming one of three sites:
- Kirsino, a small Russian village located close to St. Petersburg. The small village has a population of 39 people.
- Near the Estonian border lies Pskov Oblast. This is currently the most likely source of UVB-76, due to the multiple triangulation attempts that lead here.
- The last attempts put it very close to a transmitter array southeast of Kolpino that is reportedly used by the Russian government to transmit state radio across Russia.
Sometime in 1982 "The Buzzer " began broadcasting at a frequency of 4625 kHz. It was a repeating 2 second pip, changing to a buzzer in the early 1990's. It changed to a higher tone with longer duration on 16 January 2003; approximately 20 tones per minute where reported. It has since reverted to the previous tone pattern.
The broadcast is a monotonous buzzing tone, repeating at a rate of approximately 25 tones per minute, for 24 hours per day. This transmitted using AM with a suppressed lower sideband (R3E), but it has also used double-sideband AM
(A3E). The sound lasts 1.2 seconds, pausing between 1-1.3 seconds, and repeats 21-34 times per minute.
On November 2010, the tones lasted aproximately 0.8 seconds each. One minute before the hour, the repeating tone was replaced by a continuous, uninterrupted alternating tone, which continues for 1 minute before the short repeating buzz resumes; although this hasn't occurred since June 2010.
On very rare instances there have reports of voice transmissions interrupting the signal.
The voices were first reported at 9:58 p.m. GMT on 24 December 1997, after 15 years of only tones and buzzes, a male voice speaking Russian repeated the following message several times:
“Ya — UVB-76. 18008. BROMAL: Boris, Roman, Olga, Mikhail, Anna, Larisa. 742, 799, 14″.
On 12 September 2002 another voice broke the silence. This time so distorted that only part of the message could be understood.
“UVB-76, UVB-76. 62691 Izafet 3693 8270″
The third recorded voice message was 21 February 2006 the transmission received said:
“75-59-75-59. 39-52-53-58. 5-5-2-5. Konstantin-1-9-0-9-0-8-9-8-Tatiana-Oksana-Anna-Elena-Pavel-Schuka. Konstantin 8-4. 9-7-5-5-9-Tatiana. Anna Larisa Uliyana-9-4-1-4-3-4-8.”
The names in the message are used by some Russian spelling alphabets, although some speculate it's a Numbers Station. Transmitting encoded secrets to spies. No one has yet to decoded the messages and the stations purposes is still unknown.
The solitary letter stations and the related pip/buzzer like stations, are definitely channel markers for Russian military stations, like Navy Kaliningrad (P).