![]() There are two other Russian stations that follow a similar format, nicknamed " The Pip" and " The Squeaky Wheel". This theory is also very unlikely, due to The Buzzer stopping / breaking down regularly, potentially triggering the Dead Hand by mistake. This also allows a signal loss to be detected, causing an alarm to sound on the receiver.Īnother theory, described in a BBC article, states that the tower is connected to the Russian 'Perimeter' missile system, and emits a “ Dead Hand” signal that will trigger a nuclear retaliatory response if the signal is interrupted as a result of a nuclear attack against Russia. Due to the varying emission properties on shortwave bands, using a level-based squelch is unreliable. This can be used to activate the squelch on a receiver. The modulation is suitable to be detected by an electromechanical frequency detector, similar to a tuning fork. The signature sound could be used for tuning to the signal on an old analogue receiver. The buzzing functions as a "channel marker" used to keep the frequency occupied, thereby making it unattractive for other potential users. In addition to that, the non-changing frequency of 4625 kHz and the low transmitter power are unsuitable for reliable communication from Russia to Europe, where spies would be stationed. The station being a numbers station for intelligence agencies such as the FSB or the former KGB of the Soviet Union is extremely unlikely as messages occur at seemingly random, unpredictable times, while numbers stations use a fixed schedule which changes rarely. The most likely purpose is that the voice messages are some sort of Russian/Soviet military communications. There is speculation published in the Russian Journal of Earth Sciences which describes an observatory measuring changes in the ionosphere by broadcasting a signal at 4625 kHz, the same as the Buzzer. Other explanations are that the broadcast is constantly being listened to by military commissariats. However, Rimantas Pleikys, a former Minister of Communications and Informatics of the Republic of Lithuania, has written that the purpose of the voice messages is to confirm that operators at receiving stations are alert. The purpose of the station has not been confirmed by government or broadcast officials. These buzzes have gotten longer in duration and deeper in pitch over time, and breakdowns have been more frequent, suggesting the possibility of the buzzes being mechanically generated.ġ984 aerial photograph of Povarovo, Russia, the former site of the transmitter for UVB-76 It briefly changed to a higher tone of longer duration (approximately 20 tones per minute) on 16 January 2003, but has since reverted to the previous tone pattern. Since the start of broadcasting, The Buzzer broadcast as a repeating two-second pip, changing to a buzzer in the late 1980s/early 1990s. One minute before the hour, the repeating tone was previously replaced by a continuous, uninterrupted alternating tone, which continued for one minute until the short repeating buzz resumed, although this stopped occurring in June 2010. Until November 2010, the buzz tones lasted approximately 0.8 seconds each. The signal consists of a buzzing sound that lasts 1.2 seconds, pausing for 1–1.3 seconds, and repeating 21–34 times per minute. #Pop up primer and phantom brigade fullThe station transmits using AM with a suppressed lower sideband (USB modulation), but it has also used full double-sideband AM (A3E). Instead of being limited to one single callsign, any amount of callsigns can be used in a message. Whenever the main callsign changes, all previous side callsigns are also discarded. In addition to these main callsigns, The Buzzer also uses other "side callsigns" which are being used less frequently than the main callsign. In the following years of transmission, the main callsign of the station changed regularly. However, the station is still often referred to by that name. The callsign UVB-76 was never used by the station itself, but is rather a mistranscription of UZB-76. From at least 1997 to 2010, the station identified itself as UZB-76 (Russian: УЗБ-76). From the start of broadcasting, the station identified itself as UYB-76 (Russian: УЫБ-76). The station is commonly known as "The Buzzer" in both English and Russian (Russian: Жужжалка). ![]()
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