Radio station in the context of Moscow Summer Time

A letter to the editor (LTE) is a letter sent to a publication about an issue of concern to the reader. Usually, such letters are intended for publication. In many publications, letters to the editor may be sent either through conventional mail or electronic mail.

Letters to the editor are most frequently associated with newspapers and news magazines; however, they are sometimes published in other periodicals such as entertainment and technical magazines and academic journals. Radio and television stations may also receive such letters, which are sometimes read on the air, particularly on news commentary broadcasts or on talk radio. In this presentation form the letter to the editor can also be described as viewer mail or listener mail, depending on the medium.

A ground station, Earth station, or Earth terminal is a terrestrial radio station designed for extraplanetary telecommunication with spacecraft (constituting part of the ground segment of the spacecraft system), or reception of radio waves from astronomical radio sources. Ground stations may be located either on the surface of the Earth, or in its atmosphere. Earth stations communicate with spacecraft by transmitting and receiving radio waves in the super high frequency (SHF) or extremely high frequency (EHF) bands (e.g. microwaves). When a ground station successfully transmits radio waves to a spacecraft (or vice versa), it establishes a telecommunications link. A principal telecommunications device of the ground station is the parabolic antenna.

Ground stations may have either a fixed or itinerant position. Article 1 § III of the International Telecommunication Union (ITU) Radio Regulations describes various types of stationary and mobile ground stations, and their interrelationships.

Moscow Time (MSK; Russian: моско́вское вре́мя, romanized: moskovskoye vremya) is the time zone for the city of Moscow, Russia, and most of western Russia, including Saint Petersburg. It is the second-westernmost of the eleven time zones of Russia, after the non-continguous Kaliningrad enclave. It has been set to UTC+03:00 without DST since 26 October 2014; before that date it had been set to UTC+04:00 year-round on 27 March 2011.

Moscow Time is used to schedule trains (until 1 August 2018), ships, etc. throughout Russia, but air transport in Russia is scheduled using local time. Since 1 August 2018, Russian railways switched to using local time. Time in Russia is often announced throughout the country's other timezones on radio stations as Moscow Time, which is also registered in telegrams, etc. Descriptions of time zones in Russia are often based on Moscow Time rather than UTC; for example, Yakutsk (UTC+09:00) is said to be MSK+6 in Russia.

Absolute Radio is a British digital radio station owned and operated by Bauer Media Audio UK as part of the Absolute Radio Network. It broadcasts nationally across the UK via digital audio broadcasting.

The station focuses on alternative and indie music.

LBC (originally London Broadcasting Company) is a British phone-in and talk radio station owned and operated by Global and based in its headquarters in London. It was the UK's first licensed commercial radio station, and began to broadcast on Monday 8 October 1973, a week ahead of Capital Radio.

The launch of LBC also saw the beginning of Independent Radio News broadcasting, as LBC provided the service to independent local radio stations nationwide. LBC broadcast only to London until 2006, at which time it became available, via digital radio, in some other parts of the country. It has been available nationwide since 2014, with the letters now standing for Leading Britain's Conversation. LBC has a like-branded sister station, LBC News, dedicated to rolling news, travel and weather.

Dance music is music composed specifically to facilitate or accompany dancing. It can be either a whole piece or part of a larger musical arrangement. In terms of performance, the major categories are live dance music and recorded dance music. While there exist attestations of the combination of dance and music in ancient history (for example Ancient Greek vases sometimes show dancers accompanied by musicians), the earliest Western dance music that we can still reproduce with a degree of certainty are old-fashioned dances. In the Baroque period, the major dance styles were noble court dances (see Baroque dance). In the classical music era, the minuet was frequently used as a third movement, although in this context it would not accompany any dancing. The waltz also arose later in the classical era. Both remained part of the romantic music period, which also saw the rise of various other nationalistic dance forms like the barcarolle, mazurka, ecossaise, ballade and polonaise.

Modern popular dance music initially emerged from late 19th century's Western ballroom and social dance music. During the early 20th century, ballroom dancing gained popularity among the working class who attended public dance halls. Dance music became enormously popular during the 1920s. In the 1930s, known as the Swing era, Swing music was the popular dance music in America. In the 1950s, rock and roll became the popular dance music. The late 1960s saw the rise of soul and R&B music. Dominican and Cuban New Yorkers created the popular salsa dance in the late 1960s which stemmed from the Latin music genre of salsa. The rise of disco in the early 1970s led to dance music becoming popular with the public. By the late 1970s, electronic dance music was developing. This music, made using electronics, is a style of popular music commonly played in nightclubs, radio stations, shows and raves. Many subgenres of electronic dance music have evolved.

HD Radio (HDR) is a trademark for in-band on-channel (IBOC) digital radio broadcast technology. HD radio generally simulcasts an existing analog radio station in digital format with less noise and with additional text information. HD Radio is used primarily by FM radio stations in the United States, U.S. Virgin Islands, Canada, Mexico and the Philippines, with a few implementations outside North America.

HD Radio transmits the digital signals in unused portions of the same band as the analog AM and FM signals. As a result, radios are more easily designed to pick up both signals, which is why the HD in HD Radio is sometimes referred to stand for Hybrid Digital, not "High Definition". Officially, HD is not intended to stand for any term in HD Radio, it is simply part of iBiquity's trademark, and does not have any meaning on its own. HD Radios tune into the station's analog signal first and then look for a digital signal. The European DRM system shares channels similar to HD Radio, but the European DAB system uses different frequencies for its digital transmission.

FM broadcasting is a method of radio broadcasting that uses frequency modulation (FM) of the radio broadcast carrier wave. Invented in 1933 by American engineer Edwin Armstrong, wide-band FM is used worldwide to transmit high-fidelity sound over broadcast radio. FM broadcasting offers higher fidelity—more accurate reproduction of the original program sound—than other broadcasting techniques, such as AM broadcasting. It is also less susceptible to common forms of interference, having less static and popping sounds than are often heard on AM, but with a more limited broadcast distance. Therefore, FM is used for most broadcasts of music and general audio (in the audio spectrum). FM radio stations use the very high frequency range of radio frequencies.

A broadcast network (sometimes called a terrestrial network) is a group of radio stations, television stations, or other electronic media outlets, that form an agreement to air, or broadcast, content from a centralized source. For example, ABCTooltip American Broadcasting Company, CBSTooltip CBS and NBCTooltip NBC (U.S.), CBC/Radio-CanadaTooltip Canadian Broadcasting Corporation (Canada), the BBC (UK), the ABCTooltip Australian Broadcasting Corporation (Australia), ARD (Germany), PTVTooltip People's Television Network and IBCTooltip Intercontinental Broadcasting Corporation (Philippines), KBSTooltip Korean Broadcasting System (South Korea), and NHK (Japan) are TV networks that provide programming for local terrestrial television station affiliates to air using signals that can be picked up by the home television sets of local viewers. Networks generally, but not always, operate on a national scale; that is, they cover an entire country.

Streaming media, Internet radio, and webcasting are sometimes considered forms of broadcasting despite the lack of terrestrial stations; its practitioners may also be called "broadcasters" or even "broadcast networks".

Broadcast automation incorporates the use of broadcast programming technology to automate broadcasting operations. Used either at a broadcast network, radio station or a television station, it can run a facility in the absence of a human operator. They can also run in a live assist mode when there are on-air personnel present at the master control, television studio or control room.

The radio transmitter end of the airchain is handled by a separate automatic transmission system (ATS).

The most familiar form of radio receiver is a broadcast radio receiver, often just called a broadcast receiver or simply a radio, as used for radio broadcasting. It receives audio programs intended for public reception transmitted by local radio stations. The sound is reproduced either by a loudspeaker in the radio or an earphone which plugs into a jack on the radio. The radio requires electric power, provided either by batteries inside the radio or a power cord which plugs into an electric outlet. All radios have a volume control to adjust the loudness of the audio, and some type of "tuning" control to select the radio station to be received.

A radio format, programming format (not to be confused with broadcast programming), or specialist station (British English) describes the overall content broadcast on a radio station. The radio format emerged mainly in the United States in the 1950s, at a time when radio was compelled to develop new and exclusive ways to programming by competition with television. The formula has since spread as a reference for commercial radio programming worldwide.

A radio format aims to reach a more or less specific audience according to a certain type of programming, which can be thematic or general, more informative or more musical, among other possibilities. Radio formats are often used as a marketing tool and are subject to frequent changes, including temporary changes called "stunting."

WDET-FM (101.9 MHz) is a public radio station in Detroit, Michigan. It is owned by Wayne State University with its studios and transmitter in the Cass Corridor neighborhood. WDET broadcasts shows from National Public Radio, Public Radio International and American Public Media. The station is the primary provider of news involving the American automotive industry, and the Michigan Association of Broadcasters (MAB) named WDET the 2021 and 2022 Public Radio Station of the Year.

WDET-FM has an effective radiated power (ERP) of 48,000 watts. It is licensed to broadcast using HD Radio technology. WDET-FM's signal covers much of Southeast Michigan and part of Southwestern Ontario.

Radio stations that cannot communicate directly due to distance, terrain or other difficulties sometimes use an intermediate radio relay station to relay the signals. A radio relay receives weak signals and retransmits them, often in a different direction, as a stronger signal. Examples include airborne radio relay, microwave radio relay, and communications satellite. The American Radio Relay League was founded for this purpose but did not change its name when this became a less important part of its work.

Radio programming is the process of organising a schedule of radio content for commercial broadcasting and public broadcasting by radio stations.

Silver Alert is a public notification system in the United States to broadcast information about missing persons – especially senior citizens with Alzheimer's disease, dementia, or other mental disabilities – in order to aid in locating them.

Silver Alerts use a wide array of media outlets – such as commercial radio stations, television stations, and cable television – to broadcast information about missing persons. In some states (specifically Arizona, California, Colorado, Florida, Illinois, Maryland, New Jersey, North Dakota, Texas, Washington, Utah, and Wisconsin), Silver Alerts also use variable-message signs on roadways to alert motorists to be on the lookout for missing seniors. In cases in which a missing person is believed to be missing on foot, Silver Alerts have used Reverse 911 or other emergency notification systems to notify nearby residents of the neighborhood surrounding the missing person's last known location. Silver Alerts can also be used for children who are missing without being in danger or abducted.