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75 relations: AM broadcasting, AM expanded band, AM stereo, Americas, BBC Radio 5 Live, Berlin-Britz transmitter, C-QUAM, Cage aerial, Capacitance, CJDL-FM, Clear-channel station, Cold War, Deutschlandfunk, Deutschlandradio, Digital audio broadcasting, Digital Radio Mondiale, Dipole antenna, Directional antenna, DXing, Earth anchor, Electrical length, Enclave and exclave, Europe, F region, Federal Communications Commission, Ferrite core, FM broadcasting, Frequency modulation, Geneva Frequency Plan of 1975, Ground conductivity, Guyed mast, HD Radio, Herbert Hoover, High fidelity, Human voice, IBiquity, In-band on-channel, Innovation, Science and Economic Development Canada, Insulator (electricity), International Telecommunication Union, Ionosphere, Kaliningrad, List of European medium wave transmitters, Longwave, Loop antenna, Mast radiator, Medium frequency, MW DX, National Telecommunications and Information Administration, Node (physics), ..., North America, North American Regional Broadcasting Agreement, Omnidirectional antenna, Poland, Radiation resistance, Radio propagation, Radio spectrum, Republic of Ireland, Russia, Satellite radio, Shortwave radio, Sideband, Signal-to-noise ratio, Skywave, Surface wave, Switzerland, T-antenna, Tower array, Umbrella antenna, United Kingdom, United States Department of Commerce, United States territory, Very high frequency, Wavelength, Weather forecasting. Expand index (25 more) »
AM broadcasting
AM broadcasting is a radio broadcasting technology, which employs amplitude modulation (AM) transmissions.
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AM expanded band
The extended mediumwave broadcast band, commonly known as the expanded band, is a broadcast frequency allocation.
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AM stereo
AM stereo is a term given to a series of mutually incompatible techniques for radio broadcasting stereo audio in the AM band in a manner that is compatible with standard AM receivers.
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Americas
The Americas (also collectively called America)"America." The Oxford Companion to the English Language.
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BBC Radio 5 Live
BBC Radio 5 Live (also known as just 5 Live) is the BBC's national radio service that specialises in live BBC News, phone-ins, interviews and sports commentaries.
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Berlin-Britz transmitter
Transmitter Berlin-Britz is a broadcasting facility for medium wave, shortwave and FM on the site of a former tree nursery in Berlin-Britz.
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C-QUAM
C-QUAM is the method of AM stereo broadcasting used in Canada, the United States and most other countries.
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Cage aerial
A cage antenna (British cage aerial) is a radio antenna that consists of the top portion of a tower or mast and of several parallel wires, which are radially arranged around the lower part of the mast.
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Capacitance
Capacitance is the ratio of the change in an electric charge in a system to the corresponding change in its electric potential.
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CJDL-FM
CJDL-FM is an FM radio station licensed to Tillsonburg, Ontario, Canada, which broadcasts at 107.3 FM.
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Clear-channel station
A clear-channel station is an AM radio station in North America that has the highest protection from interference from other stations, particularly concerning night-time skywave propagation.
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Cold War
The Cold War was a state of geopolitical tension after World War II between powers in the Eastern Bloc (the Soviet Union and its satellite states) and powers in the Western Bloc (the United States, its NATO allies and others).
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Deutschlandfunk
Deutschlandfunk (DLF) is a German public broadcasting radio station, broadcasting national news and current affairs.
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Deutschlandradio
Deutschlandradio (DLR or DRadio) is a national German public radio broadcaster.
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Digital audio broadcasting
Digital audio broadcasting (DAB) is a digital radio standard for broadcasting digital audio radio services, used in many countries across Europe, Asia, and the Pacific.
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Digital Radio Mondiale
Digital Radio Mondiale (DRM; mondiale being Italian and French for "worldwide") is a set of digital audio broadcasting technologies designed to work over the bands currently used for analogue radio broadcasting including AM broadcasting, particularly shortwave, and FM broadcasting.
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Dipole antenna
In radio and telecommunications a dipole antenna or doublet is the simplest and most widely used class of antenna.
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Directional antenna
A directional antenna or beam antenna is an antenna which radiates or receives greater power in specific directions allowing increased performance and reduced interference from unwanted sources.
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DXing
DXing is the hobby of receiving and identifying distant radio or television signals, or making two way radio contact with distant stations in amateur radio, citizens' band radio or other two way radio communications.
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Earth anchor
An earth anchor is a device designed to support structures, most commonly used in geotechnical and construction applications.
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Electrical length
In telecommunications and electrical engineering, electrical length (or phase length) refers to the length of an electrical conductor in terms of the phase shift introduced by transmission over that conductor at some frequency.
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Enclave and exclave
An enclave is a territory, or a part of a territory, that is entirely surrounded by the territory of one other state.
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Europe
Europe is a continent located entirely in the Northern Hemisphere and mostly in the Eastern Hemisphere.
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F region
The F region of the ionosphere is home to the F layer of ionization, also called the Appleton–Barnett layer, after the English physicist Edward Appleton and New Zealander Miles Barnett.
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Federal Communications Commission
The Federal Communications Commission (FCC) is an independent agency of the United States government created by statute (and) to regulate interstate communications by radio, television, wire, satellite, and cable.
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Ferrite core
In electronics, a ferrite core is a type of magnetic core made of ferrite on which the windings of electric transformers and other wound components such as inductors are formed.
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FM broadcasting
FM broadcasting is a method of radio broadcasting using frequency modulation (FM) technology.
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Frequency modulation
In telecommunications and signal processing, frequency modulation (FM) is the encoding of information in a carrier wave by varying the instantaneous frequency of the wave.
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Geneva Frequency Plan of 1975
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.
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Ground conductivity
Ground conductivity refers to the electrical conductivity of the subsurface of the earth.
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Guyed mast
A guyed mast is a tall thin vertical structure that depends on guy lines for stability.
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HD Radio
HD Radio is a trademarked term for iBiquity's in-band on-channel (IBOC) digital radio technology used by AM and FM radio stations to transmit audio and data by using a digital signal embedded "on-frequency" immediately above and below a station's standard analog signal, providing the means to listen to the same program in either HD (digital radio with less noise) or as a standard broadcast (analog radio with standard sound quality).
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Herbert Hoover
Herbert Clark Hoover (August 10, 1874 – October 20, 1964) was an American engineer, businessman and politician who served as the 31st President of the United States from 1929 to 1933 during the Great Depression.
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High fidelity
High fidelity (often shortened to hi-fi or hifi) is a term used by listeners, audiophiles and home audio enthusiasts to refer to high-quality reproduction of sound.
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Human voice
The human voice consists of sound made by a human being using the vocal tract, such as talking, singing, laughing, crying, screaming, etc.
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IBiquity
iBiquity Digital Corporation is a company formed by the merger of USA Digital Radio and Lucent Digital Radio, with the goal of creating an in-band on-channel (IBOC) digital radio system for the United States and around the world.
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In-band on-channel
In-band on-channel (IBOC) is a hybrid method of transmitting digital radio and analog radio broadcast signals simultaneously on the same frequency.
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Innovation, Science and Economic Development Canada
Innovation, Science and Economic Development Canada (Innovation, Sciences et Développement économique Canada), or ISED, formerly Industry Canada, is the department of the Government of Canada with a mandate of fostering a growing, competitive, and knowledge-based Canadian economy.
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Insulator (electricity)
An electrical insulator is a material whose internal electric charges do not flow freely; very little electric current will flow through it under the influence of an electric field.
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International Telecommunication Union
The International Telecommunication Union (ITU; Union Internationale des Télécommunications (UIT)), originally the International Telegraph Union (Union Télégraphique Internationale), is a specialized agency of the United Nations (UN) that is responsible for issues that concern information and communication technologies.
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Ionosphere
The ionosphere is the ionized part of Earth's upper atmosphere, from about to altitude, a region that includes the thermosphere and parts of the mesosphere and exosphere.
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Kaliningrad
Kaliningrad (p; former German name: Königsberg; Yiddish: קעניגסבערג, Kenigsberg; r; Old Prussian: Twangste, Kunnegsgarbs, Knigsberg; Polish: Królewiec) is a city in the administrative centre of Kaliningrad Oblast, a Russian exclave between Poland and Lithuania on the Baltic Sea.
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List of European medium wave transmitters
This is an incomplete list of medium wave transmitters in Europe.
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Longwave
In radio, longwave, long wave or long-wave, and commonly abbreviated LW, refers to parts of the radio spectrum with wavelengths longer than what was originally called the medium-wave broadcasting band.
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Loop antenna
A loop antenna is a radio antenna consisting of a loop or coil of wire, tubing, or other electrical conductor usually fed by a balanced source or feeding a balanced load.
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Mast radiator
A mast radiator (or radiating tower) is a radio mast or tower in which the entire structure functions as an antenna.
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Medium frequency
Medium frequency (MF) is the ITU designation for radio frequencies (RF) in the range of 300 kilohertz (kHz) to 3 megahertz (MHz).
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MW DX
MW DX, short for mediumwave DXing, is the hobby of receiving distant mediumwave (known as AM in North America) radio stations.
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National Telecommunications and Information Administration
The National Telecommunications and Information Administration (NTIA) is an agency of the United States Department of Commerce that serves as the President's principal adviser on telecommunications policies pertaining to the United States' economic and technological advancement and to regulation of the telecommunications industry.
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Node (physics)
A node is a point along a standing wave where the wave has minimum amplitude.
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North America
North America is a continent entirely within the Northern Hemisphere and almost all within the Western Hemisphere; it is also considered by some to be a northern subcontinent of the Americas.
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North American Regional Broadcasting Agreement
The North American Regional Broadcasting Agreement, commonly abbreviated as NARBA, refers to a series of international treaties that defined technical standards for AM band (mediumwave) radio stations.
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Omnidirectional antenna
In radio communication, an omnidirectional antenna is a class of antenna which have an axis about which radio wave power is radiated symmetrically, and, upon that axis, is zero.
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Poland
Poland (Polska), officially the Republic of Poland (Rzeczpospolita Polska), is a country located in Central Europe.
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Radiation resistance
Radiation resistance is that part of an antenna's feedpoint resistance that is caused by the radiation of electromagnetic waves from the antenna, as opposed to loss resistance (also called ohmic resistance) which generally causes the antenna to heat up.
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Radio propagation
Radio propagation is the behavior of radio waves as they travel, or are propagated, from one point to another, or into various parts of the atmosphere.
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Radio spectrum
The radio spectrum is the part of the electromagnetic spectrum with frequencies from 3 Hz to 3 000 GHz (3 THz).
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Republic of Ireland
Ireland (Éire), also known as the Republic of Ireland (Poblacht na hÉireann), is a sovereign state in north-western Europe occupying 26 of 32 counties of the island of Ireland.
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Russia
Russia (rɐˈsʲijə), officially the Russian Federation (p), is a country in Eurasia. At, Russia is the largest country in the world by area, covering more than one-eighth of the Earth's inhabited land area, and the ninth most populous, with over 144 million people as of December 2017, excluding Crimea. About 77% of the population live in the western, European part of the country. Russia's capital Moscow is one of the largest cities in the world; other major cities include Saint Petersburg, Novosibirsk, Yekaterinburg and Nizhny Novgorod. Extending across the entirety of Northern Asia and much of Eastern Europe, Russia spans eleven time zones and incorporates a wide range of environments and landforms. From northwest to southeast, Russia shares land borders with Norway, Finland, Estonia, Latvia, Lithuania and Poland (both with Kaliningrad Oblast), Belarus, Ukraine, Georgia, Azerbaijan, Kazakhstan, China, Mongolia and North Korea. It shares maritime borders with Japan by the Sea of Okhotsk and the U.S. state of Alaska across the Bering Strait. The East Slavs emerged as a recognizable group in Europe between the 3rd and 8th centuries AD. Founded and ruled by a Varangian warrior elite and their descendants, the medieval state of Rus arose in the 9th century. In 988 it adopted Orthodox Christianity from the Byzantine Empire, beginning the synthesis of Byzantine and Slavic cultures that defined Russian culture for the next millennium. Rus' ultimately disintegrated into a number of smaller states; most of the Rus' lands were overrun by the Mongol invasion and became tributaries of the nomadic Golden Horde in the 13th century. The Grand Duchy of Moscow gradually reunified the surrounding Russian principalities, achieved independence from the Golden Horde. By the 18th century, the nation had greatly expanded through conquest, annexation, and exploration to become the Russian Empire, which was the third largest empire in history, stretching from Poland on the west to Alaska on the east. Following the Russian Revolution, the Russian Soviet Federative Socialist Republic became the largest and leading constituent of the Union of Soviet Socialist Republics, the world's first constitutionally socialist state. The Soviet Union played a decisive role in the Allied victory in World War II, and emerged as a recognized superpower and rival to the United States during the Cold War. The Soviet era saw some of the most significant technological achievements of the 20th century, including the world's first human-made satellite and the launching of the first humans in space. By the end of 1990, the Soviet Union had the world's second largest economy, largest standing military in the world and the largest stockpile of weapons of mass destruction. Following the dissolution of the Soviet Union in 1991, twelve independent republics emerged from the USSR: Russia, Ukraine, Belarus, Kazakhstan, Uzbekistan, Armenia, Azerbaijan, Georgia, Kyrgyzstan, Moldova, Tajikistan, Turkmenistan and the Baltic states regained independence: Estonia, Latvia, Lithuania; the Russian SFSR reconstituted itself as the Russian Federation and is recognized as the continuing legal personality and a successor of the Soviet Union. It is governed as a federal semi-presidential republic. The Russian economy ranks as the twelfth largest by nominal GDP and sixth largest by purchasing power parity in 2015. Russia's extensive mineral and energy resources are the largest such reserves in the world, making it one of the leading producers of oil and natural gas globally. The country is one of the five recognized nuclear weapons states and possesses the largest stockpile of weapons of mass destruction. Russia is a great power as well as a regional power and has been characterised as a potential superpower. It is a permanent member of the United Nations Security Council and an active global partner of ASEAN, as well as a member of the G20, the Shanghai Cooperation Organisation (SCO), the Council of Europe, the Asia-Pacific Economic Cooperation (APEC), the Organization for Security and Co-operation in Europe (OSCE), and the World Trade Organization (WTO), as well as being the leading member of the Commonwealth of Independent States (CIS), the Collective Security Treaty Organization (CSTO) and one of the five members of the Eurasian Economic Union (EEU), along with Armenia, Belarus, Kazakhstan and Kyrgyzstan.
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Satellite radio
Satellite radio is defined by the International Telecommunication Union (ITU)'S ITU Radio Regulations (RR) as a broadcasting-satellite service.
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Shortwave radio
Shortwave radio is radio transmission using shortwave radio frequencies.
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Sideband
In radio communications, a sideband is a band of frequencies higher than or lower than the carrier frequency, containing power as a result of the modulation process.
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Signal-to-noise ratio
Signal-to-noise ratio (abbreviated SNR or S/N) is a measure used in science and engineering that compares the level of a desired signal to the level of background noise.
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Skywave
In radio communication, skywave or skip refers to the propagation of radio waves reflected or refracted back toward Earth from the ionosphere, an electrically charged layer of the upper atmosphere.
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Surface wave
In physics, a surface wave is a mechanical wave that propagates along the interface between differing media.
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Switzerland
Switzerland, officially the Swiss Confederation, is a sovereign state in Europe.
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T-antenna
A T-antenna, T-aerial, flat-top antenna, or top-hat antenna is a capacitively loaded monopole wire radio antenna used in the VLF, LF, MF and shortwave bands.
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Tower array
A tower array is an arrangement of multiple radio towers which are mast radiators in a phased array.
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Umbrella antenna
An umbrella antenna is a top-loaded electrically lengthened monopole antenna, consisting in most cases of a mast fed at the ground end, to which a number of radial wires are connected at the top, sloping downwards.
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United Kingdom
The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain,Usage is mixed with some organisations, including the and preferring to use Britain as shorthand for Great Britain is a sovereign country in western Europe.
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United States Department of Commerce
The United States Department of Commerce is the Cabinet department of the United States government concerned with promoting economic growth.
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United States territory
United States territory is any extent of region under the sovereign jurisdiction of the federal government of the United States, including all waters (around islands or continental tracts) and all U.S. naval vessels.
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Very high frequency
Very high frequency (VHF) is the ITU designation for the range of radio frequency electromagnetic waves (radio waves) from 30 to 300 megahertz (MHz), with corresponding wavelengths of ten to one meter.
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Wavelength
In physics, the wavelength is the spatial period of a periodic wave—the distance over which the wave's shape repeats.
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Weather forecasting
Weather forecasting is the application of science and technology to predict the conditions of the atmosphere for a given location and time.
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Redirects here:
AM Band, AM band, MF radio, Medium Wave, Medium-wave, Medium-wave radio, Mediumwave, Middle-wave, Middlewave.
References
[1] https://en.wikipedia.org/wiki/Medium_wave
