UVB-76
[ [ Template: Images desire / code / O: probably between Saint Petersburg and Pskov (Russia ) / D: The Buzzer / | BW ]! ]
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The Buzzer ( German Buzzer ) is the nickname of a Russian number station with the former callsign UWB76 that sends normally on the short-wave frequency 4625 kHz ( amplitude modulation). After a temporary name change to MDZhB he reported since September 9, 2011 with the call sign 94ZhT. On December 29, 2011 at 14:01 MDZhB the call sign was used again.
In the meantime sent the shortwave transmitters on other frequencies.
The purpose of the station is unknown and remains a mystery.
In August 2010, the station for unknown reasons was much more active than in the other, decades-long history of the station.
- 4.1 transmission technology
Broadcast Schedule
The transmitter continuously sends a short, monotonous buzz, which is repeated about 25 times per minute. The show takes every day 23 hours and 10 minutes, in time 7:50 to 7:00 UTC. During the time likely to send free maintenance on the station will take place.
One minute before the hour, the repetitive sound for one minute by a continuous tone was replaced. Since autumn 2009, however, this continuous sound is gone. Then the repeated sound continues. In some very rare cases, the buzzing was interrupted and sent a voice message in Russian. So far, only four of these interruptions were observed. Despite much speculation, the purpose of the public radio station is unknown.
On 7 June 2010, the show broke off. There was a short break and the sound was changed again ( slower totals). The reasons are unclear, although there are rumors that there was another voice message before the crash. On 8 June 2010 the transmit operation went on. From about normal because the buzzing sound of the station was changed again. The pitch was low and now the sound is more like a distant foghorn. Whether this is intentional or a malfunction is unclear.
On 2 September 2010 the transmission progress stopped for several days. Namely a piece from the ballet Swan Lake by Pyotr Ilyich Tchaikovsky - - When the transmit operation was resumed, a piece of music was the first time in the history of the station played.
Normal shipment
The transmitter has at least the early 1980s in operation, possibly even since 1973. Initially, a repetitive, zweisekündiger beep has been sent, the beginning of the year was changed in 1990 to the current buzz. From the 16th January 2003, the signal changed briefly to a higher tone of longer duration (approximately 20 tones per minute).
You can hear quite often distant conversations or other background noises behind the buzzer. So was on November 3, 2001, a call can be heard in Russian: " Я - 143 Не получаю генератор. " " Идёт такая работа от аппаратной " (German: "Here Einhundertdreiundvierzig I do not receive the generator " - "The. !. ! 's what the operating room sends " ( However, the second sentence could also " It is currently working in the operating room " to be translated. ) On 2 September 2010, heard someone talking in the background :" They should work, but are weak. "
The background noise or just conversations indicate that no playback takes place or the signal generator is connected directly to the transmitter, but rather that the sender receives the buzzer on a constantly open mic from the signal generator.
Voice messages
Voice messages from the sender UVB -76 are very rare. So far about 25 such messages were received in the more than 20-year history of the station. However, it is quite possible that there were voice messages that have not been registered by listeners.
Former voice messages UVB -76
Currently, the station is quite active again and sends the callsign MDZhB. The following table shows the position in the archived file is specified on archives.uvb - 76.net the source, at the beginning the spoken message.
Location
The stations were located around 2010 near Powarowo in Russia, about halfway between Zelenograd and Solnechnogorsk. The transmitters were in a forest area near the village Loschki, about 40 km north-west of Moscow. The geographic coordinates loud 56.083 ° N, 37.09 ° and 56.083 ° O56.08337.09 N, 37.11 ° O56.08337.11.
Apparently, this site has now been abandoned. New photographs show that the systems are largely destroyed and the property plummets. Even the buildings in Powarowo are obviously no longer used.
The programs are, however, continue to receive, so it will be sent from a new location. Its exact position could not be determined because accurate bearings in the shortwave range are difficult. However, the system seems to be in the area between Pskov and St. Petersburg.
According to the page uvb - 76.net but appear to be present, what bearings more difficult because you do not know which antenna you just anpeilt multiple antennas.
Broadcasting technology
The old location at Powarowo the sender found the type Molniya -2M (PKM -15) and Molniya -3 ( PKM -20 ) and a Viaz - M2, which has evidently served as a reserve. The antennas were horizontal dipoles VGDSh that were located at a height of about 20 m above the ground.
Which transmission technology is used at the new location is still unknown. For technical reasons, however, be assumed that there exists a similar configuration as the old location.
Reception of the station
The channel can be received with any standard short-wave receiver or world. In Western Europe, the monotonous buzz is particularly good to hear in the evenings. The transmit frequency is 4625 kHz.
Purpose and function
The purpose of the transmitter is also unknown.
It is on the one hand suggested that the transmitter UVB -76 is used for this, to assure the readiness, availability, functionality, or the state of a device. This is supported by the nature of the program and its location in one place, which is a message center of the General Staff of the Russian Army, according to speculation. The station would be a kind of dead-man switch for a military (eg " dead hand " ) or other means.
Another theory about UVB -76 was released in 2008. In the Russian Journal of Earth Sciences. Vol 10-2008 was published an article on " high-frequency Doppler method for ionospheric research ," in which the frequency used by UVB -76 4625 kHz, is meticulously documented. Here, a constant signal is sent, which must be in a particular frequency range, so that it is reflected in the ionosphere. This change in the ionosphere can be detected, based for example on seismic activity. However, this would not explain the voice messages and Morse code.
Media interest
On the Internet, a lot of speculation and rumors are circulating about UVB 76th The page uvb - 76.net for example, offers a live stream as well as records of UVB -76. Also a card with bearings can be seen there. On the radio, or in newspapers, the interest is comparatively low, the SWR has SWR2 Pulse reported on January 7, 2013, the series just above the station.
In the series 8:51 into Bavaria 1 also was briefly reported on the transmitter (on the occasion of the music transfer on September 2, 2010), here also the theory is called, that the short- wave transmitter as a kind of control of former nuclear missile the Soviets acts. Under this method, when UVB -76 no longer sends a circuit responsive and a wave of nuclear attacks against other countries (mainly to the USA) trigger. This theory leaves open questions, such as, why then are the voice messages or why you can not just disable the missiles.
On January 30, 2014 reported DRadio knowledge of the transmitter.
Disorders
In the night from 20 to 21 December 2013, the emission of UVB -76 was disturbed. The signal was seriously distorted and there were also transferred to the " silence time" between the Tonaussendungen noise ( splatter ). This is probably due to a defect at the transmitter. In the early morning of the following 22 December The Buzzer ceased completely until about 13:20 UTC.