Radio

Radio is the use of radio waves is to carry information, such as sound, by systematically modulating some property of electromagnetic energy waves transmitted through space, such as their amplitude, frequency, phase, or pulse width. When radio waves strike an electrical conductor, the oscillating fields induce an alternating current in the conductor. The information in the waves can be extracted and transformed back into its original form.

Radio systems need a transmitter to modulate (change) some property of the energy produced to impress a signal on it, for example using amplitude modulation or angle modulation (which can be frequency modulation or phase modulation). Radio systems also need an antenna to convert electric currents into radio waves, and vice versa. An antenna can be used for both transmitting and receiving. The electrical resonance of tuned circuits in radios allow individual stations to be selected. The electromagnetic wave is intercepted by a tuned receiving antenna. A radio receiver receives its input from an antenna and converts it into a form usable for the consumer, such as sound, pictures, digital data, measurement values, navigational positions, etc. Radio frequencies occupy the range from a 3 kHz to 300 GHz, although commercially important uses of radio use only a small part of this spectrum.

Montgomery

Montgomery may refer to:

Places

Belgium

France

Pakistan

United Kingdom

Wales

United States

Radio program

A radio program (radio programme in the United Kingdom) or radio show is a segment of content intended for broadcast on radio. It may be a one-time production or part of a periodically recurring series. A single program in a series is called an episode.

International radio

In Britain, radio broadcasting was dominated entirely by the BBC, which since the early 1920s had been developing a broad spectrum of programming including different genres of music and speech, including documentaries, drama, comedy, news, religious broadcasts, children's programmes, schools broadcasts and sports coverage). BBC output was a unifying force within British culture, and has been written about extensively elsewhere.

In the 1950s, a small but growing cohort of Rock and pop music fans, dissatisfied with the BBC's output, might listen to Radio Luxembourg, but to too small an extent to have any impact on the BBC's monopoly and invariably only at night, when the signal from Luxembourg was stronger. During the post-1964 period, western Europe offshore radio (such as Radio Caroline broadcasting from ships at anchor or abandoned forts) helped to supply the demand for the pop and rock music. The BBC launched its own pop music station, BBC Radio 1, in 1967.

Montgomery, Alabama

Montgomery /mɒntˈɡʌməri/ is the capital of the U.S. state of Alabama and is the county seat of Montgomery County. Named for Richard Montgomery, it is located on the Alabama River, in the Gulf Coastal Plain. As of the 2010 Census, Montgomery had a population of 205,764. It is the second-largest city in Alabama, after Birmingham, and the 103rd largest in the United States. The Montgomery Metropolitan Statistical Area had a 2010 estimated population of 374,536. It is the fourth-largest in the state and 136th among United States metropolitan areas.

The city was incorporated in 1819, as a merger of two towns situated along the Alabama River. It became the state capital in 1846, representing the shift of power to the south-central area with the growth of cotton as a commodity crop of the Black Belt and Mobile's rise as a mercantile port. In February 1861, Montgomery was selected as the first capital of the Confederate States of America, until the seat of government moved to Richmond, Virginia, in May of that year. During the mid-20th century, Montgomery was a major site of events in the African-American Civil Rights Movement, including the Montgomery Bus Boycott and the Selma to Montgomery marches.

Radio drama

Radio drama (or audio drama, audio play, radio play,radio theater, or audio theater) is a dramatized, purely acoustic performance, broadcast on radio or published on audio media, such as tape or CD. With no visual component, radio drama depends on dialogue, music and sound effects to help the listener imagine the characters and story: “It is auditory in the physical dimension but equally powerful as a visual force in the psychological dimension.”

Radio drama achieved widespread popularity within a decade of its initial development in the 1920s. By the 1940s, it was a leading international popular entertainment. With the advent of television in the 1950s, however, radio drama lost some of its popularity, and in some countries has never regained large audiences. However, recordings of OTR (old-time radio) survive today in the audio archives of collectors and museums, as well as several online sites such as Internet Archive.

As of 2011, radio drama has a minimal presence on terrestrial radio in the United States. Much of American radio drama is restricted to rebroadcasts or podcasts of programs from previous decades. However, other nations still have thriving traditions of radio drama. In the United Kingdom, for example, the BBC produces and broadcasts hundreds of new radio plays each year on Radio 3, Radio 4, and Radio 4 Extra. Like the USA, Australia ABC has abandoned broadcasting drama but New Zealand RNZ continues to promote and broadcast a variety of drama on its airways. Podcasting has also offered the means of creating new radio dramas, in addition to the distribution of vintage programs.