Strange Signals

Open Case

UVB-76

UVB-76, often called The Buzzer, is a long-running shortwave radio signal with changing voice messages and uncertain operational purpose. Stable source set includes monitoring archives and reference material; the case is valuable as a signal-tracking mystery with community observation history.

Case identity

4 reports / 2 evidence blocks / updated Jul 27, 2026

Date

1973

Location

Russia

Category

Strange Signals

Status

Open Case

30-Second Summary

What happened?

UVB-76, often called The Buzzer, is a long-running shortwave radio signal with changing voice messages and uncertain operational purpose.

What is documented?

Stable source set includes monitoring archives and reference material; the case is valuable as a signal-tracking mystery with community observation history.

Current consensus?

The case has enough stable source material to inspect, while extraordinary interpretations remain provisional.

80Signal

Overall investigation significance score.

71Reality

How strongly evidence supports that the event occurred.

48Debunk

How strongly conventional explanations explain the event.

45Residue

How much unexplained material remains.

Signal basis: score reflects visible report volume, direct evidence blocks, freshness, and search interest. Individual evidence and explanation strength is shown inside the workspace so the top score has visible provenance.

Your read

Source Overview

Read the case through the reporting

This is a quick map of the file. The full source list, media, excerpts, and confidence labels live in Reports so the case page does not repeat the same dossier twice.

4
Sources
4
Materials
5
Excerpts
0
Low conf.

Primary source / Archive / Date unknown

The Buzzer

Numbers Stations Research and Information Center

High confidence

Reference page summarizing monitoring history and common interpretations of UVB-76.

Case workspace

Understand the event before judging it

Start here if you are new to the case: what happened, why people still care, and what the archive currently thinks.

What happened?

UVB-76, often called The Buzzer, is a long-running shortwave radio signal with changing voice messages and uncertain operational purpose.

What the file contains

Stable source set includes monitoring archives and reference material; the case is valuable as a signal-tracking mystery with community observation history.

Current read

The case has enough stable source material to inspect, while extraordinary interpretations remain provisional.

Why the signal is high

This case has multiple accessible sources and visible reporting history. Use the evidence, explanation, and report confidence layers to separate durable facts from repeated claims.

Source-driven case file. Reports stay visible; claim strength is scored separately.

Case Verdict

Best current interpretation

Open Case

Strongly supported

Please help improve it by removing references to unreliable sources , where they are used inappropriately .

Likely explained

This case still needs a stronger dedicated debunk source; current interpretation should remain conservative until better analysis is attached.

Still unresolved

Which records are closest to the original event?

The case has enough stable source material to inspect, while extraordinary interpretations remain provisional.

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