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The Buzzer
, russian: МДЖБ, label=none, russian: ЖУОЗ, label=none, russian: АНВФ, label=none , former_frequencies = 4625 kHz , owner = Russian Armed Forces , name = UVB-76 , area = Russia, Soviet Union (Former) , frequency = 4625 kHz shortwave , language = Russian , coordinates = , sister_stations = The Pip, The Squeaky Wheel , city = , embedded = UVB-76 (russian: УВБ-76; see other callsigns), also known by the nickname "The Buzzer", is a shortwave radio station that broadcasts on the frequency of 4625 kHz. It broadcasts a short, monotonous , repeating at a rate of approximately 25 tones per minute, 24 hours per day. Sometimes, the buzzer signal is interrupted and a voice transmission in Russian takes place. The start date of broadcasting is disputed. However, it was allegedly reported to have started broadcasting in the late 1970s, possibly 1976. Name and callsigns The station is commonly known as "The Buzzer" in both English and Russian (russian: Жужж� ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spectrogram
A spectrogram is a visual representation of the spectrum of frequencies of a signal as it varies with time. When applied to an audio signal, spectrograms are sometimes called sonographs, voiceprints, or voicegrams. When the data are represented in a 3D plot they may be called '' waterfall displays''. Spectrograms are used extensively in the fields of music, linguistics, sonar, radar, speech processing, seismology, and others. Spectrograms of audio can be used to identify spoken words phonetically, and to analyse the various calls of animals. A spectrogram can be generated by an optical spectrometer, a bank of band-pass filters, by Fourier transform or by a wavelet transform (in which case it is also known as a scaleogram or scalogram). A spectrogram is usually depicted as a heat map, i.e., as an image with the intensity shown by varying the colour or brightness. Format A common format is a graph with two geometric dimensions: one axis represents time, and the other a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sideband
In radio communications, a sideband is a band of frequencies higher than or lower than the carrier frequency, that are the result of the modulation process. The sidebands carry the information transmitted by the radio signal. The sidebands comprise all the spectral components of the modulated signal except the carrier. The signal components above the carrier frequency constitute the upper sideband (USB), and those below the carrier frequency constitute the lower sideband (LSB). All forms of modulation produce sidebands. Sideband creation We can illustrate the creation of sidebands with one trigonometric identity: :\cos(A)\cdot \cos(B) \equiv \tfrac\cos(A+B) + \tfrac\cos(A-B) Adding \cos(A) to both sides: :\cos(A)\cdot +\cos(B)= \tfrac\cos(A+B) + \cos(A) + \tfrac\cos(A-B) Substituting (for instance) A \triangleq 1000\cdot t and B \triangleq 100\cdot t, where t represents time: :\underbrace_\cdot \underbrace_ = \underbrace_ + \underbrace_ + \u ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gangnam Style
"Gangnam Style" ( ko, 강남스타일, ) is a K-pop song by South Korean rapper Psy, released on July 15, 2012, by YG Entertainment as the lead single of his sixth studio album, ''Psy 6 (Six Rules), Part 1'' (''Ssai Yukgap Part 1''). The term "Gangnam Style" is a Korean neologism that refers to a lifestyle associated with the Gangnam District of Seoul. "Gangnam Style" debuted at number one on South Korea's Gaon Chart, receiving mixed to positive reviews, with praise for its catchy beat and Psy's amusing dancing and during live performances in various locations around the world in its music video. The song and its music video went viral in August 2012 and have influenced popular culture worldwide. In the United States, "Gangnam Style" peaked at number two on ''Billboard'' Hot 100. By the end of 2012, "Gangnam Style" had topped the music charts of more than 30 countries including Australia, Canada, France, Germany, Italy, Russia, Spain, and the United Kingdom. Psy's dance in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
K-pop
K-pop (), short for Korean popular music, is a form of popular music originating in South Korea as part of South Korean culture. It includes styles and genres from around the world, such as pop, hip hop, R&B, experimental, rock, jazz, gospel, reggae, electronic dance, folk, country, disco, and classical on top of its traditional Korean music roots. The term "K-pop" became popular in the 2000s, especially in the international context. The Korean term for domestic pop music is ''gayo'' (), which is still widely used within South Korea. While "K-pop" can refer to all popular music or pop music from South Korea, it is colloquially often used in a ''narrower'' sense for any Korean music and artists associated with the entertainment and idol industry in the country, regardless of the genre. The more modern form of the genre, originally termed "rap dance", emerged with the formation of the hip hop boy band Seo Taiji and Boys, in 1992. Their experimentation with different ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Internet Meme
An Internet meme, commonly known simply as a meme ( ), is an idea, behavior, style, or image that is spread via the Internet, often through social media platforms. What is considered a meme may vary across different communities on the Internet and is subject to change over time. Traditionally, the term mostly applied to images, concepts, or catchphrases, but it has since become broader and more multi-faceted, evolving to include more elaborate structures such as challenges, GIFs, videos, and viral sensations. The retronym derives from the earlier concept of a meme as any cultural idea, behavior or style that propagates through imitation. Internet memes are considered a part of Internet culture. They can spread from person to person via social networks, blogs, email, or news sources. Instant communication on the Internet facilitates word of mouth transmission, resulting in fads and sensations that tend to grow rapidly. For example, posting a photo of someone planking o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spectrum Analyzer
A spectrum analyzer measures the magnitude of an input signal versus frequency within the full frequency range of the instrument. The primary use is to measure the power of the spectrum of known and unknown signals. The input signal that most common spectrum analyzers measure is electrical; however, spectral compositions of other signals, such as acoustic pressure waves and optical light waves, can be considered through the use of an appropriate transducer. Spectrum analyzers for other types of signals also exist, such as optical spectrum analyzers which use direct optical techniques such as a monochromator to make measurements. By analyzing the spectra of electrical signals, dominant frequency, power, distortion, harmonics, bandwidth, and other spectral components of a signal can be observed that are not easily detectable in time domain waveforms. These parameters are useful in the characterization of electronic devices, such as wireless transmitters. The display of a spec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RTTY
Radioteletype (RTTY) is a telecommunications system consisting originally of two or more electromechanical teleprinters in different locations connected by radio rather than a wired link. Radioteletype evolved from earlier landline teleprinter operations that began in the mid-1800s. The US Navy Department successfully tested printing telegraphy between an airplane and ground radio station in 1922. Later that year, the Radio Corporation of America successfully tested printing telegraphy via their Chatham, Massachusetts, radio station to the R.M.S. Majestic. Commercial RTTY systems were in active service between San Francisco and Honolulu as early as April 1932 and between San Francisco and New York City by 1934. The US military used radioteletype in the 1930s and expanded this usage during World War II. From the 1980s, teleprinters were replaced by personal computers (PCs) running software to emulate teleprinters. The term radioteletype is used to describe both the original radio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crimea
Crimea, crh, Къырым, Qırım, grc, Κιμμερία / Ταυρική, translit=Kimmería / Taurikḗ ( ) is a peninsula in Ukraine, on the northern coast of the Black Sea, that has been occupied by Russia since 2014. It has a population of 2.4 million. The peninsula is almost entirely surrounded by the Black Sea and the smaller Sea of Azov. The Isthmus of Perekop connects the peninsula to Kherson Oblast in mainland Ukraine. To the east, the Crimean Bridge, constructed in 2018, spans the Strait of Kerch, linking the peninsula with Krasnodar Krai in Russia. The Arabat Spit, located to the northeast, is a narrow strip of land that separates the Sivash lagoons from the Sea of Azov. Across the Black Sea to the west lies Romania and to the south is Turkey. Crimea (called the Tauric Peninsula until the early modern period) has historically been at the boundary between the classical world and the steppe. Greeks colonized its southern fringe and were absorbed b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sudak
Sudak ( Ukrainian & Russian: Судак; crh, Sudaq; gr, Σουγδαία; sometimes spelled Sudac or Sudagh) is a town, multiple former Eastern Orthodox bishopric and double Latin Catholic titular see. It is of regional significance in Crimea, a territory recognized by most countries as part of Ukraine but annexed by Russia as the Republic of Crimea. Sudak serves as the administrative center of Sudak Municipality, one of the regions Crimea is divided into. It is situated to the west of Feodosia (the nearest railway station) and to the east of Simferopol, the republic's capital. Population: A city of antiquity, today it is a popular resort, best known for its Genoese fortress, the best preserved on the northern shore of the Black Sea. History Foundation and early Middle Ages The date and circumstances of the city's foundation are uncertain. The first written reference to the city dates to the 7th century (in the ''Ravenna Cosmography''), but later local tradition places ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zander
The zander (''Sander lucioperca''), sander or pikeperch, is a species of ray-finned fish from the family Percidae, which includes the perches, ruffes and darters. It is found in freshwater and brackish habitats in western Eurasia. It is a popular game fish and has been introduced to a variety of localities outside its native range. It is the type species of the genus ''Sander''. Taxonomy The zander was first formally described in 1758 as ''Perca lucioperca'' by Carolus Linnaeus in volume 1 of the tenth edition of ''Systema Naturae'' and he gave the type locality as "European lakes". When Lorenz Oken (1779-1851) created the genus '' Sander'' he made ''Perca lucioperca'' its type species. The zander is part of the European clade within the genus ''Sander'' which split from a common ancestor with the North American clade, which the walleye (''S. vitreus'') and the sauger (''S. canadensis'') belong to, around 20.8 million years ago. Within the European clade the Volga pikeperch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Swan Lake
''Swan Lake'' ( rus, Лебеди́ное о́зеро, r=Lebedínoye ózero, p=lʲɪbʲɪˈdʲinəjə ˈozʲɪrə, link=no ), Op. 20, is a ballet composed by Russian composer Pyotr Ilyich Tchaikovsky in 1875–76. Despite its initial failure, it is now one of the most popular ballets of all time. The scenario, initially in two acts, was fashioned from Russian and German folk tales and tells the story of Odette, a princess turned into a swan by an evil sorcerer's curse. The choreographer of the original production was Julius Reisinger (Václav Reisinger). The ballet was premiered by the Bolshoi Ballet on at the Bolshoi Theatre in Moscow. Although it is presented in many different versions, most ballet companies base their stagings both choreographically and musically on the 1895 revival of Marius Petipa and Lev Ivanov, first staged for the Imperial Ballet on 15 January 1895, at the Mariinsky Theatre in St. Petersburg. For this revival, Tchaikovsky's score was revise ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hammond Organ
The Hammond organ is an electric organ invented by Laurens Hammond and John M. Hanert and first manufactured in 1935. Multiple models have been produced, most of which use sliding #Drawbars, drawbars to vary sounds. Until 1975, Hammond organs generated sound by creating an electric current from rotating a metal tonewheel near an electromagnetic pickup, and then strengthening the signal with an Power amplifier, amplifier to drive a speaker enclosure, speaker cabinet. The organ is commonly used with the Leslie speaker. Around two million Hammond organs have been manufactured. The organ was originally marketed by the Hammond Organ Company to Church (building), churches as a lower-cost alternative to the wind-driven pipe organ, or instead of a piano. It quickly became popular with professional jazz musicians in organ trios—small groups centered on the Hammond organ. Jazz club owners found that organ trios were cheaper than hiring a big band. Jimmy Smith (musician), Jimmy Smith's ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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