UVB-76 "The Buzzer" (Doomsday Radio) — a Russian military radio station broadcasting on shortwave at 4625 kHz. It emits dull, monotonous buzzing sounds, occasionally interrupted by rare encrypted messages. The station has no call signs, no announcements, and no music. UVB-76, also known as "The Buzzer," has fascinated researchers, amateur radio enthusiasts, and conspiracy theorists for decades. This is not just a radio — it's a portal into the world of espionage secrets, military experiments, and unsolved mysteries from the Cold War era.

History of "The Buzzer": Echoes in the Airwaves
Start of Broadcast: The UVB-76 signal was first recorded in the late 1970s on the frequency 4625 kHz.

Soviet Legacy: The station is believed to have been based near Leningrad (now St. Petersburg) at the military town "Petrozavodsk-2."

Relocation: In 2010, the transmitter suddenly went silent, then resumed broadcasting from the Pskov region.

Voices from Nowhere: Over more than 40 years, fewer than 100 voice messages have been recorded. The most famous one was: "MIKHAIL... DMITRY... EARTH... 27... 9... END OF COMMUNICATION" (1997).

Technical Characteristics of UVB-76
Frequency: 4625 kHz (shortwave, 41-meter band)

Signal: Continuous buzzing (1–2 tones per second), operating non-stop, occasionally interrupted by rare transmissions.

Power: Estimated between 5 and 25 kW — the signal can be picked up even outside Russia.

Main Theories About the Purpose of UVB-76
"Military Communication"
It is believed that the station transmits encrypted commands to military units, including nuclear facilities. Voice messages might activate dormant spy networks.

"Radio Beacon"
Hypothesis: UVB-76 could be used to calibrate radars or satellite systems. However, continuous broadcasting contradicts this theory.

"HAARP-like Experiment"
Conspiracy theorists link "The Buzzer" to ionospheric or climate control projects.

"Art Project"
Skeptics suggest it’s an art installation designed to provoke mystery. However, its operation over 50+ years refutes this idea.

Cultural Impact: UVB-76 in Pop Culture
Games: The station appears in Call of Duty: Black Ops (Zombies mode) and Rise of the Tomb Raider .

Music: Track "UVB-76" by The Prodigy; album The Buzzer by Zavoloka.

Documentary: "Russia's Mystery Signal: UVB-76" (BBC, 2012).

How to Catch the "Buzzer" Signal?
Shortwave Radio: Tune your receiver to 4625 kHz in the evening or at night (best reception time).

Online Streams: Websites like WebSDR or SDR Netherlands allow you to listen live online — just click the "Start Audio" button upon entering. These sites let you hear UVB-76 in real-time, as if you're listening from Norway.

Android Apps: On Rustore, there's an app called Glavnoe Radio (also downloadable from their website) that retransmits the UVB-76 signal online.

Enthusiast Communities: Telegram channel "UVB-76 Logs" — here you can listen to and discuss every message with fellow fans.

Why Listen to It?
UVB-76 is the last relic of an era when radio was a weapon, and the airwaves were a battlefield. It reminds us how many secrets still lie hidden beneath the noise of everyday life.

Try catching the signal today. Perhaps you will be the one to decode the message that has waited since the 1970s...