UVB-76

Forgotten Mysteries · 2011

Archived on

Associated With

Unknown - associated person or organisation not established

Defining Feature

A signal monitored on 4625.0 kHz with a marker sound and intermittent Russian voice traffic

Status

Unresolved - Documented in the retained 2011 monitoring logs; origin, operator, purpose and present status are not established

Overview

UVB-76 is a listener label for a shortwave signal monitored on 4625 kHz and also identified as The Buzzer and S28.

The retained May 2011 log records an AM voice message using the callsigns KZJT and LNR4. The June log records several Russian voice messages from 'MDZhB' to named recipients.

The logs document a marker sound and intermittent Russian voice traffic, but they do not establish the signal's origin, operator, purpose or present status.

Why It Mattered

The retained 2011 logs preserve monitor observations of a marker sound and intermittent Russian voice traffic on a publicly receivable shortwave frequency.

Their value is evidential rather than explanatory: they record times, identifiers and reception details while leaving the signal's origin, purpose and present status unresolved.

Frequency and label

  • Both retained logs place the monitored signal at 4625.0 kHz.
  • The magazine identifies it with the listener labels 'The Buzzer,' S28 and UVB76.

Logged voice traffic

  • The May 2011 log records an AM voice message at 1448 UTC with callsigns KZJT and LNR4.
  • The June 2011 log records several Russian voice messages from 'MDZhB' to named recipients at three UTC times.

Evidence boundary

  • The June observation was made through a remote receiver and attributed to monitor Ary Boender.
  • The operator and purpose have never been officially acknowledged.
Sources & Records

Gallery

Blue receiver waterfall display of the UVB-76 signal at 4625 kHz.
Source
Credit

NBNBNB00000 / Wikimedia Commons; resized for display

Licence

CC BY-SA 4.0

See the licence terms for attribution, reuse and any other conditions.

Caption

A receiver waterfall display centred on 4625 kHz provides a visual reference for the frequency documented in the retained 2011 logs.