UVB-76 — "The Buzzer"

DESCRIPTION

On 4625 kHz, in the shortwave band, a buzzer sounds about twenty-five times a minute. It has done so, with interruptions, since the late 1970s; the earliest confirmed recording dates to 1982. Hobbyists named the station "The Buzzer." On 24 December 1997 the tone stopped and a live Russian voice read a callsign — heard as UVB-76 — followed by names and number groups. That name stuck, though the station has since re-identified as MDZhB (2010), ZhUOZ (2015), ANVF (2019) and, since 30 December 2020, NZhTI. No official body has ever explained the transmission. The silence built a myth: a "Dead Hand" trigger, a dead-man's switch said to launch missiles if the buzzing ever stops. The mundane explanation is well documented. The myth persists anyway. That gap is why this file exists.

THE RECORD

The station transmits continuously on 4625 kHz, upper sideband. Voice messages follow a fixed template monitors call the Monolith format — the callsign twice, five-digit groups, a codeword, eight digits: "NZhTI NZhTI 34 511 GOLOSOK 80 17 81 54." In September 2010 the transmitter left its long-time site at Povarovo, near Moscow; monitoring by Priyom.org has since tied the signal to Russian military communication hubs near St. Petersburg and Naro-Fominsk, and message activity rose after the move. The frequency is unencrypted and weakly guarded: pirates have repeatedly intruded with music and images, and on 4 May 2024 one briefly exchanged words with a station operator. Recent dated activity: 11 November 2025, twenty-four messages in a day — the most verbose on record; 14 November 2025, RIA Novosti reported the broadcast briefly cut after a drone strike on a nearby power station; mid-December 2025, monitors logged roughly fifteen messages plus stray music excerpts, including Swan Lake; 24 June 2026, six messages inside one hour. As of 1 July 2026 the buzzer is transmitting normally, audible live on the University of Twente WebSDR.

THE HONEST READ

The best-supported reading, from Priyom.org's decade-plus of monitoring, is ordinary: the buzz is a channel marker that keeps the frequency occupied and confirms the link works, on a command network of a Russian military district, with voice traffic consistent with readiness and training messages. The doomsday theory fails on its own record — the buzzer has stopped many times, for maintenance, the 2010 relocation and the 2025 power cut, and nothing followed. What the Watch actually tracks is not silence but volume, since message spikes have loosely followed periods of military tension since 2022. The station is almost certainly mundane; the file stays open because the system that runs it has never once said so.