Michigan Radio

Michigan Radio is a network of three public radio stations (WUOM, WFUM, and WVGR) operated by the University of Michigan through its broadcasting arm, Michigan Public Media. The station is a founding member of National Public Radio and an affiliate of Public Radio International and American Public Media. Its main studio is located in Ann Arbor, with satellite studios in Flint and offices in Grand Rapids.

The stations are known as Michigan Radio: Your NPR News Station. The network currently airs NPR news and talk, which it has since July 1, 1996. All three stations broadcast in HD Radio, although there are currently no HD subchannels.

Stations

Combined, the three stations of Michigan Radio cover most of the southern two-thirds of the Lower Peninsula.

Station beginnings

Before the university had applied for its own radio station, the University of Michigan Extension Service Bureau of Broadcasting produced programs for other stations starting the 1920s. For instance, in November 1944, the Bureau of Broadcasting produced "Stump the Professor" for WJR in Detroit and "The Balkan States: Places and Nations in the News" for WKAR in East Lansing.

Michigan

Michigan ⁱ/ˈmɪʃᵻɡən/ is a state located in the Great Lakes and midwestern regions of the United States. The name Michigan is the French form of the Ojibwa word mishigamaa, meaning "large water" or "large lake". Michigan is the tenth most populous of the 50 United States, with the 11th most extensive total area (the largest state by total area east of the Mississippi River). Its capital is Lansing, and the largest city is Detroit.

Michigan is the only state to consist of two peninsulas. The Lower Peninsula, to which the name Michigan was originally applied, is often noted to be shaped like a mitten. The Upper Peninsula (often referred to as "the U.P.") is separated from the Lower Peninsula by the Straits of Mackinac, a five-mile (8 km) channel that joins Lake Huron to Lake Michigan. The two peninsulas are connected by the Mackinac Bridge. The state has the longest freshwater coastline of any political subdivision in the world, being bounded by four of the five Great Lakes, plus Lake Saint Clair. As a result, it is one of the leading U.S. states for recreational boating. Michigan also has 64,980 inland lakes and ponds. A person in the state is never more than six miles (9.7 km) from a natural water source or more than 85 miles (137 km) from a Great Lakes shoreline.

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.