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Aberdeen Radio
2BD was a local radio station opened on 10 October 1923 in Aberdeen, Scotland, by the British Broadcasting Company (later to become the British Broadcasting Corporation). Operating from a studio at the rear of a shop belonging to Aberdeen Electrical Engineering at 17 Belmont Street and a transmitter located on the premises of the Aberdeen Steam Laundry Company, the station broadcast on a frequency of 606 kHz (495 m) medium wave.The History of Aberdeen Radio : article by Gordon Bathgate from the online edition of ''Leopard Magazine'', February 2005. Retrieved on 8 January 2008. Planning After being appointed of the[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Medium Wave
Medium wave (MW) is the part of the medium frequency (MF) radio band used mainly for AM radio broadcasting. The spectrum provides about 120 channels with more limited sound quality than FM stations on the FM broadcast band. During the daytime, reception is usually limited to more local stations, though this is dependent on the signal conditions and quality of radio receiver used. Improved signal propagation at night allows the reception of much longer distance signals (within a range of about 2,000 km or 1,200 miles). This can cause increased interference because on most channels multiple transmitters operate simultaneously worldwide. In addition, amplitude modulation (AM) is often more prone to interference by various electronic devices, especially power supplies and computers. Strong transmitters cover larger areas than on the FM broadcast band but require more energy and longer antennas. Digital modes are possible but have not reached momentum yet. MW was the main radio ban ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chief Engineer
A chief engineer, commonly referred to as "ChEng" or "Chief", is the most senior engine officer of an engine department on a ship, typically a merchant ship, and holds overall leadership and the responsibility of that department..Chief engineer's rank is equivalent to the rank of a ship's captain. As a person who holds one of the most senior roles on the ship, they must have excellent communication and leadership skills. They will be expected to regularly work alongside other crew members and external consultants, and most importantly, provide guidance to their team. To be a chief engineer, an engineer must attain a chief engineer's license appropriate to the tonnage, power rating, and type of ship that they are employed on. A chief engineer is ultimately responsible for all operations and maintenance that has to do with any and all engineering equipment throughout the entire ship, and supervises all other engineering officer and engine ratings within the department. United Stat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geneva Frequency Plan
The Geneva Frequency Plan of 1975 (Aka "The Final Acts of the Regional Administrative LF/MF Broadcasting Conference (Regions 1 and 3) Geneva, 1975" or simply "GE75") is the internationally agreed frequency plan which was drawn up to implement the provisions of the Final Acts of the Regional Administrative LF/MF Broadcasting Conference (Regions 1 and 3) held in Geneva, Switzerland, in 1975. It covers radio broadcasting in the long and medium wave bands outside the Americas ( separate agreements being in place for North and South America). The plan was drawn up under the auspices of the World Administrative Radio Conference (WARC) of the International Telecommunication Union (ITU) with the assistance of the European Broadcasting Union (EBU/UER). The Geneva plan replaced the 1948 Copenhagen plan. It became necessary because of the large number of broadcasting stations in these frequency ranges leading to ever more mutual interference (Many countries had refused to ratify the Co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Harry Gordon (entertainer)
Alexander Ross Gordon (11 July 1893 – 21 January 1957), known as Harry Gordon, was a popular Scottish entertainer, comedian and impressionist, touring throughout Scotland and further afield. From the 1920s through the 1950s Gordon also produced a large number of recordings, including several under assumed names. He was known as the Laird of Inversnecky, a fictional Scottish town he used in his comic routines, which ended up becoming the nickname for Inverness.Watson, Iain ''Harry Gordon: The Laird of Inversnecky'', Aberdeen District Council, 1993 Life and career Harry Gordon was born in Aberdeen as Alexander Gordon, one of five sons and a daughter. He attended King Street and Central schools, before leaving for work as an insurance clerk to help with the family finances. His first public appearance on stage may have occurred at age 12 as Princess Chrysanthemum at Gilcomston Parish Church. By the time he was fifteen years old, he decided to pursue a full-time career as an en ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Harmonica
The harmonica, also known as a French harp or mouth organ, is a free reed wind instrument used worldwide in many musical genres, notably in blues, American folk music, classical music, jazz, country, and rock. The many types of harmonica include diatonic, chromatic, tremolo, octave, orchestral, and bass versions. A harmonica is played by using the mouth (lips and tongue) to direct air into or out of one (or more) holes along a mouthpiece. Behind each hole is a chamber containing at least one reed. The most common is the diatonic Richter-tuned with ten air passages and twenty reeds, often called the blues harp. A harmonica reed is a flat, elongated spring typically made of brass, stainless steel, or bronze, which is secured at one end over a slot that serves as an airway. When the free end is made to vibrate by the player's air, it alternately blocks and unblocks the airway to produce sound. Reeds are tuned to individual pitches. Tuning may involve changing a reed’s length ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orchestra
An orchestra (; ) is a large instrumental ensemble typical of classical music, which combines instruments from different families. There are typically four main sections of instruments: * bowed string instruments, such as the violin, viola, cello, and double bass * woodwinds, such as the flute, oboe, clarinet, saxophone, and bassoon * Brass instruments, such as the horn, trumpet, trombone, cornet, and tuba * percussion instruments, such as the timpani, snare drum, bass drum, cymbals, triangle, tambourine, and mallet percussion instruments Other instruments such as the piano, harpsichord, and celesta may sometimes appear in a fifth keyboard section or may stand alone as soloist instruments, as may the concert harp and, for performances of some modern compositions, electronic instruments and guitars. A full-size Western orchestra may sometimes be called a or philharmonic orchestra (from Greek ''phil-'', "loving", and "harmony"). The actual number of musicians employ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peter Craigmyle
Peter Craigmyle (1 January 1894 – 21 November 1979) was revered by many to be Scotland's greatest football referee of the 20th century. Born in Oldmeldrum, Aberdeenshire, Scotland, the son of Peter William Craigmyle and Isabella Barclay Craigmyle, née McWilliam. His own playing aspirations were dashed after breaking both his legs in 1916, but he was encouraged to take up refereeing by the Aberdeen FC manager at the time. In the 1920s he had a weekly programme on a local radio station 2BD. He travelled to Malta and the Faroe Islands lecturing and refereeing and was known as the "fearless Aberdonian." In an impressive and unparalleled topflight refereeing career spanning over 31 years he earned virtually every honour and accolade possible. Even today he remains one of Scotland’s most revered and respected whistlers. Some of his refereeing achievements were true 'firsts'. He refereed almost every senior cup final in Scotland and Ireland as well as many Old Firm matches. C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Live Radio
Live radio is radio broadcast without delay. Before the days of television, audiences listened to live dramas, comedies, quiz shows and concerts on the radio much the same way that they now do on television. Most talk radio is live radio where people can speak (anonymously) about their opinions and lives. Live radio is sound transmitted by radio waves, as the sound happens. Modern live radio is probably most used to broadcast sports but it is also used to transmit local news and traffic updates. Most radio that we listen to today is recorded music, and the days of solely live broadcast music are generally not as present. Beginnings According to ''Encyclopædia Britannica'', the first transmission sent over radio waves were voice and music signals transmitted in December 1906 from Brant Rock, Massachusetts. Canadian experimenter Reginald Fessenden produced approximately an hour of talk and music that was heard by radio amateurs before radio's popularity exploded. Other experiment ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Transmitter
In electronics and telecommunications, a radio transmitter or just transmitter is an electronic device which produces radio waves with an antenna (radio), antenna. The transmitter itself generates a radio frequency alternating current, which is applied to the Antenna (radio), antenna. When excited by this alternating current, the antenna radiates radio waves. Transmitters are necessary component parts of all electronic devices that communicate by radio communication, radio, such as radio broadcasting, radio and television broadcasting stations, cell phones, walkie-talkies, Wireless LAN, wireless computer networks, Bluetooth enabled devices, garage door openers, two-way radios in aircraft, ships, spacecraft, radar sets and navigational beacons. The term ''transmitter'' is usually limited to equipment that generates radio waves for Communication engineering, communication purposes; or radiolocation, such as radar and navigational transmitters. Generators of radio waves for heatin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electrical Generator
In electricity generation, a generator is a device that converts motive power (mechanical energy) or fuel-based power (chemical energy) into electric power for use in an external circuit. Sources of mechanical energy include steam turbines, gas turbines, water turbines, internal combustion engines, wind turbines and even hand cranks. The first electromagnetic generator, the Faraday disk, was invented in 1831 by British scientist Michael Faraday. Generators provide nearly all of the power for electric power grids. In addition to electromechanical designs, photovoltaic and fuel cell powered generators utilize solar power and hydrogen-based fuels, respectively, to generate electrical output. The reverse conversion of electrical energy into mechanical energy is done by an electric motor, and motors and generators have many similarities. Many motors can be mechanically driven to generate electricity; frequently they make acceptable manual generators. Terminology Electromagnetic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radio Masts And Towers
Radio masts and towers are typically tall structures designed to support antennas for telecommunications and broadcasting, including television. There are two main types: guyed and self-supporting structures. They are among the tallest human-made structures. Masts are often named after the broadcasting organizations that originally built them or currently use them. In the case of a mast radiator or radiating tower, the whole mast or tower is itself the transmitting antenna. Terminology The terms "mast" and "tower" are often used interchangeably. However, in structural engineering terms, a tower is a self-supporting or cantilevered structure, while a mast is held up by stays or guys. Broadcast engineers in the UK use the same terminology. A mast is a ground-based or rooftop structure that supports antennas at a height where they can satisfactorily send or receive radio waves. Typical masts are of steel lattice or tubular steel construction. Masts themselves play no part in t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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