Related Research Articles
Shortwave radio is radio transmission using radio frequencies in the shortwave bands (SW). There is no official definition of the band range, but it always includes all of the high frequency band (HF), which extends from 3 to 30 MHz ; above the medium frequency band (MF), to the bottom of the VHF band.
Medium wave (MW) is a 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. 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.
AM broadcasting is radio broadcasting using amplitude modulation (AM) transmissions. It was the first method developed for making audio radio transmissions, and is still used worldwide, primarily for medium wave transmissions, but also on the longwave and shortwave radio bands.
Radio broadcasting is the broadcasting of audio (sound), sometimes with related metadata, by radio waves to radio receivers belonging to a public audience. In terrestrial radio broadcasting the radio waves are broadcast by a land-based radio station, while in satellite radio the radio waves are broadcast by a satellite in Earth orbit. To receive the content the listener must have a broadcast radio receiver (radio). Stations are often affiliated with a radio network that provides content in a common radio format, either in broadcast syndication or simulcast, or both. Radio stations broadcast with several different types of modulation: AM radio stations transmit in AM, FM radio stations transmit in FM, which are older analog audio standards, while newer digital radio stations transmit in several digital audio standards: DAB, HD radio, DRM.
A clear-channel station is a North American AM radio station that has the highest level of protection from interference from other stations, particularly from nighttime skywave signals. This classification exists to ensure the viability of cross-country or cross-continent radio service enforced through a series of treaties and statutory laws. Known as Class A stations since the 1983 adoption of the Regional Agreement for the Medium Frequency Broadcasting Service in Region 2, they are occasionally still referred to by their former classifications of Class I-A, Class I-B, or Class I-N. The term "clear-channel" is used most often in the context of North America and the Caribbean, where the concept originated.
KKOB is a commercial AM radio station, licensed to Albuquerque, New Mexico and owned by Cumulus Media. Its news/talk format is branded as "96.3 Newsradio KKOB", reflecting a simulcast with co-owned KKOB-FM 96.3 MHz. Studios and offices are located in Downtown Albuquerque. KKOB is the oldest station in New Mexico and is the state's primary entry point for the Emergency Alert System.
The Eternal Word Television Network, more commonly known by its initials EWTN, is an American basic cable television network which presents around-the-clock Catholic-themed programming. It is not only the largest Catholic television network in America, but reportedly "the world's largest religious media network", reaching 425 million people in 160 countries, with 11 networks. It was founded by Mother Angelica, in 1980 and began broadcasting on August 15, 1981, from a garage studio at the Our Lady of the Angels Monastery in Irondale, Alabama, which Mother Angelica founded in 1962. She hosted her own show, Mother Angelica Live, until health issues led to her retirement in September 2001. As of 2017, Michael P. Warsaw, who is a consultant to the Vatican's Dicastery for Communications, leads EWTN.
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. Therefore, FM is used for most broadcasts of music and general audio. FM radio stations use the very high frequency range of radio frequencies.
WWL is an AM radio station in New Orleans, Louisiana, owned by Audacy, Inc. The station has a news/talk format with sports talk at night. Its studios are at the 400 Poydras Tower in the New Orleans Central Business District.
Apex radio stations was the name commonly given to a short-lived group of United States broadcasting stations, which were used to evaluate transmitting on frequencies that were much higher than the ones used by standard amplitude modulation (AM) and shortwave stations. Their name came from the tall height of their transmitter antennas, which were needed because coverage was primarily limited to local line-of-sight distances. These stations were assigned to what at the time were described as "ultra-high shortwave" frequencies, between roughly 25 and 44 MHz. They employed amplitude modulation (AM) transmissions, although in most cases using a wider bandwidth than standard broadcast band AM stations, in order to provide high fidelity sound with less static and distortion.
WMAX is a radio station broadcasting a Catholic religious format. It is co-owned with WDEO 990 AM in Ypsilanti, Michigan, and features the same programming from the EWTN Global Catholic Radio network.
XEB-AM is a radio station on AM frequency 1220 kHz, serving Mexico City and surrounding areas in Mexico. Under the brand name La B Grande, the station airs a Spanish-language classic contemporary format with music from the 1940s to the 1970s. It has been owned by the Instituto Mexicano de la Radio (IMER), a Mexican government public broadcaster, since IMER's founding in 1983.
Radio Educación is a cultural radio station in Mexico, based in Mexico City. Radio Educación airs Spanish-language cultural and educational programming. The primary broadcast signal is XECPAE-AM 1060 kHz, broadcasting on a North American clear-channel frequency and sharing Class A status with KYW in Philadelphia, Pennsylvania. Radio Educación also operates a shortwave station, XEPPM-OC on 6.185 MHz, and an FM radio station in Mérida, Yucatán, as well as FM stations to be built at Hermosillo, Sonora, and Morelia, Michoacán.
Voice of Han Broadcasting Station also known as Voice of Han Chinese Broadcasting Station was founded in 1942 by the Ministry of National Defense. It is headquartered on Xinyi Road in the Zhongzheng District of Taipei, Taiwan.
WJTA "Holy Family Radio" is a non-commercial FM broadcasting station with its studio and office located in Glandorf, Ohio with transmitter located near Leipsic in rural Putnam County. WJTA airs programming from the EWTN Global Catholic Radio Network, and transmits at 88.9 mHz on the FM band. It is the first full-time Catholic radio station to come on the air in northwestern Ohio and within the Toledo Diocese...the others being WNOC "Annunciation Radio" licensed in Bowling Green and based in Toledo and WRRO licensed in Edon serving the Bryan area and the corner of the Ohio, Indiana and Michigan state lines.
XEUN-AM is a radio station in Mexico City. Broadcasting on 860 AM, XEUN-AM is owned by the National Autonomous University of Mexico (UNAM) as a sister to XEUN-FM 96.1 and XHUNAM-TDT 20.
XERED-AM is a radio station in Mexico City. Located on 1110 kHz, XERED-AM is owned by Grupo Radio Centro broadcasting a talk format based on news and sports known as Radio Red. 1110 AM is a United States clear-channel frequency.
XEXQ-AM is a radio station in San Luis Potosí, San Luis Potosí. It broadcasts on 1190 kHz and is one of two radio stations owned by the Universidad Autónoma de San Luis Potosí, known as Radio Universidad 1190 AM.
XHBH-FM 98.5 is a radio station in Hermosillo, Sonora, Mexico. It carries the La Mejor national format from MVS Radio.
References
- ↑ "A Signal for the New Evangelization". National Catholic Register. 2012-12-28.
- ↑ "Technical Profile: WEWN". www.almediapage.info. Retrieved 2021-04-07.
- ↑ "Radio Shortwave Frequency Guide". www.ewtn.com. 2021-03-28.
- ↑ "EWTN Radio Católica Mundial". 18 February 2021.
- ↑ "EWTN Global Catholic Radio Now Available In All of Chicagoland and Beyond". 31 August 2021.
