ARLA/CLUSTER: The Buzzer: Estranha emissão com mais de 30 anos em 4625 kHz.

[Pedro Ribeiro (CR7ABP)]

Ouvido com S4 na minha antena HF da treta (uns metros de fio em cima do 
telhado) neste exacto momento ...

Parece uma história da série "Lost" ...

Raios, como consegue você todos os dias arranjar coisas interessantes 
para o pessoal ...

73!

On 19-05-2010 15:23, João Gonçalves Costa wrote:
>
>
>
>       *Frequency: 4625 kHz*
>
> *Secondary Frequencies Heard: 3842 kHz & 3877 kHz*
>
> The Buzzer
>
> A regular signal with a rough rasping modulated tone heard on 4625 kHz,
> "The Buzzer" is believed to have been transmitting since the early '80's.
>
> During 1994 transmissions of the 4625 kHz signal were heard for several
> hours simulcast on 5310 kHz (June 21 1994), and from 1200hrs to 1800hrs
> UTC on 5211 kHz (Sept. 1994). This may have been while testing and
> setting-up was taking place.
>
> This signal transmits around the clock, although due to propagation is
> usually only heard during the late afternoons and hours of darkness in
> the UK. Sounds a bit like a time signal, but sends around 25 pulses per
> minute. At 1 minute to the hour, the signal changes to a continuous tone
> rising and falling.
>
> Accuracy is variable and the station has been heard sending the "hour"
> tones up to 3 minutes either way.
>
> * "The Buzzer" (50 kb)* <http://www.brogers.dsl.pipex.com/buzzer.mp3>
>
> On January 16 2003 the tone used by the station changed to a higher
> pitched tone with a slightly longer duration, giving around 20 pulses
> per minute, although the signal has now reverted back to the original
> tone and duration.
>
> "The Buzzer" also sends messages periodically, which are usually around
> Christmas. On 25 December 1997, at 2158 UTC, the tone ceased and a
> message was read out in Russian.
>
> In personal E-Mail, Rimantas Pleikys in Lithuania has provided me with a
> full translation of the message.
>
> *"This is UVB-76 18008 BROMAL 74279914"* (Repeated several times).
>
> *UVB-76* is believed to be the callsign of the station which would
> indicate a Ukranian source under the international agreement on callsign
> allocation, however the station has been reliably tracked to Russia.
>
> Rimantas adds that the word *BROMAL*, which was spelt out phonetically,
> has the same international meaning - that being a chemical. This would
> seem to be a randomly selected Codeword.
>
> Similar messages have been intercepted by monitors at various times. It
> is believed that the frequency is monitored at one or more sites on a
> permanent basis, and that the receiving stations, on hearing one of the
> messages must immediately contact "control" and repeat the message and
> codeword to show that they are alert and monitoring.
>
> It is believed the station is military in origin possibly connected with
> the Strategic Rocket Forces who control the nuclear ICBM missiles. Jan
> Michalski on his webpage, (see below), states that the station is part
> of the Central Communications Hub of the General Staff of the Army, and
> serves the same purpose as the US EAM messages.
>
> The Buzzer
>
> The transmitter site is in woodland near Povarovo, in Western Russia,
> about 50 Km NW of Moscow, and in 2004/5 was tracked and photographed by
> a group of Russian lads who were kind enough to email me the photographs
> which are on displayed on this page.
>
> Lower power back-up transmitters are thought to exist (though these may
> be at an alternative site), as simulcast transmissions of the "Buzzer"
> have been heard on 3842 kHz & 3877 kHz at different times in parallel
> with the 4625 kHz transmission.
>
> A rare report of "The Buzzer" from a Pennsylvania, USA member of ENIGMA
> 2000, in March 2004, reported the signal as "Weak but audible in AM mode".
>
> Sincere thanks to Rimantas Pleikys for his help and for making his
> findings available to me, and to the Russian "Urban Explorers" who
> visited the site.
>
> For technical information on this station, visit Jan Michalski's page
> Radio Station UVB-76 <http://www.starbacks.ca/uvb76/index.html>
>
> Fonte: Site "Mystery Signals Of The Short Wave" (Dedicated to the more
> unusual, strange, bizarre & apparently meaningless signals on the Short
> Wave Bands - Past & present.)
>
>
>
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-- 
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Pedro Ribeiro
Indicativo: CR7ABP
QTH: São Francisco, Alcochete
GRID LOC: IM58MR
Radioamador "condenado" a 2 anos de RX em Classe 3
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