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Posts tagged ‘numbers station’


MDZhB (UVB-76) Transmission Times Graph

The following chart represents a graph of MDZhB’s (formerly UVB-76) transmission times. This was done by taking time information of all known MDZhB transmissions from 11 September 2010, to 20 January 2011. There have been 80 transmissions in that 131-day timeframe, averaging out at about one transmission every other day. The transmission times were rounded to their nearest ten minutes to simplify the representation.

As you can see MDZhB, broadcasting on 4625 khz, has been transmitting the majority of its broadcasts between the times of 12:50 and 15:20 UTC. If you want to catch a live broadcast, your best chance is to listen within that 2.5-hour timeframe.

For more info follow the UVB-76 Activity Updates page, or join the IRC chat: #uvb-76 @

Data from danix111’s UVB-76 archives.


Creepy Russian UVB-76 Broadcast Changes After 20 Years

UVB-76 Satellite ImageThis may seem like a deviation from the normal topics I cover, but I’ve been quite intruigued by the recent news of an unusual broadcast from the Russian military UVB-76 numbers station. Numbers stations are radio broadcasts that transmit morse code, or computer-generated voices reading out a series of numbers or words. Their purpose is generally unknown but thought to be used to broadcast orders to military or spies. One rumor suggests it is involved in Russia’s Dead Hand (aka. Perimeter).

UVB-76, located in Povarovo, Russia (northwest of Moscow), is a shortwave radio transmission (4625 kHz – AM suppressed lower sideband) that has been transmitting short monotonous buzz tones since 1982. Voice messages from UVB-76 – also known as “The Buzzer” – have only occurred three confirmed times in the past 20 years, the last known instance being the 23rd of August 2010 (recording below). During this broadcast the buzz tones stopped, and were replaced by the Russian-language broadcast which translates to:

UVB-76, UVB-76 — 93 882 naimina 74 14 35 74 — 9 3 8 8 2 nikolai, anna, ivan, michail, ivan, nikolai, anna, 7, 4, 1, 4, 3, 5, 7, 4

Some believe the transmission referred to the coordinates 74.14N 35.74E, located in the Barents Sea off the coast of Norway and Russia, where Russia is planning on testing anti-aircraft missile systems.

There is also belief that the installation is simply used for ionosphere research, as a Russian science journal indicated research being performed on the same frequency. Although this wouldn’t explain the cryptic messages.

Live streams of UVB-76 are available here (AM feed, USB feed). Photos of the purported installation here. Some more archived info here.

Anyone have any other ideas? Conspiracy theories? In all likelihood, it may be nothing propulsed into the mainstream. It wouldn’t be the first time.

[Update 1/09/2010] Dedicated UVB-76 forums are now open – join in the discussion there.

[Update 2/09/2010] Follow regular UVB-76 activity updates here, and find out what’s currently happening.

[Update 10/09/2010] You can also join in on the live chat.

4625 kHz (AM suppressed lower sidebands)