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.

Sirius XM Holdings

Sirius XM Holdings is an American broadcasting company that provides three satellite radio services operating in the United States, Sirius Satellite Radio, XM Satellite Radio and Sirius XM Radio. The company also has a Canadian subsidiary called Sirius XM Canada, an affiliate company that provides Sirius and XM service in Canada. At the end of 2013, Sirius reorganized their corporate structure, which made Sirius XM Radio Inc. a direct, wholly owned subsidiary of Sirius XM Holdings Inc. Sirius XM Radio was formed after the U.S. Federal Communications Commission (FCC) approved the acquisition of XM Satellite Radio Holding, Inc. by Sirius Satellite Radio, Inc. on July 29, 2008, 17 months after the companies first proposed the merger. The merger brought the combined companies a total of more than 18.5 million subscribers based on current subscriber numbers on the date of merging. The deal was valued at $3.3 billion, not including debt. Through Q4 2015, Sirius XM has 29.6 million subscribers.

Sirius

Sirius (/ˈsɪriəs/) is the brightest star (in fact, a star system) in the Earth's night sky. With a visual apparent magnitude of −1.46, it is almost twice as bright as Canopus, the next brightest star. The name "Sirius" is derived from the Ancient Greek Σείριος (Seirios), meaning "glowing" or "scorcher". The system has the Bayer designation Alpha Canis Majoris (α CMa). What the naked eye perceives as a single star is actually a binary star system, consisting of a white main-sequence star of spectral type A1V, termed Sirius A, and a faint white dwarf companion of spectral type DA2, called Sirius B. The distance separating Sirius A from its companion varies between 8.2 and 31.5 AU.

Sirius appears bright because of both its intrinsic luminosity and its proximity to Earth. At a distance of 2.6 parsecs (8.6 ly), as determined by the Hipparcos astrometry satellite, the Sirius system is one of Earth's near neighbors. Sirius is gradually moving closer to the Solar System, so it will slightly increase in brightness over the next 60,000 years. After that time its distance will begin to increase and it will become fainter, but it will continue to be the brightest star in the Earth's sky for the next 210,000 years.

Satellite radio

Satellite radio is – according to article 1.39 of the International Telecommunication Union´s (ITU) ITU Radio Regulations (RR) – a Broadcasting-satellite service.

The satellite's signals are broadcast nationwide, across a much wider geographical area than terrestrial radio stations, and the service is primarily intended for the occupants of motor vehicles. It is available by subscription, mostly commercial free, and offers subscribers more stations and a wider variety of programming options than terrestrial radio.

Satellite radio technology was inducted into the Space Foundation Space Technology Hall of Fame in 2002. Satellite radio uses the 2.3 GHz S band in North America for nationwide digital audio broadcasting (DAB). In other parts of the world, satellite radio uses the 1.4 GHz L band allocated for DAB.

Satellite radio subscribers purchase a receiver and pay a monthly subscription fee to listen to programming. They can listen through built-in or portable receivers in automobiles; in the home and office with a portable or tabletop receiver equipped to connect the receiver to a stereo system; or on the Internet.

Ricky Martin

Enrique Martín Morales (born December 24, 1971), commonly known as Ricky Martin, is a Puerto Rican-Spanish singer, actor, and author. Martin began his career at age twelve with the all-boy pop group Menudo. After five years with the group, he released several Spanish-language solo albums throughout the 1990s. He also acted on stage and on TV in Mexico, becoming a modest star in the country. In 1994 he starred on the American TV soap opera General Hospital, playing a Puerto Rican singer.

In late 1999, after releasing several albums in Spanish, Martin performed "The Cup of Life" at the 41st Grammy Awards show, which became a catalyst in bringing Latin pop to the forefront of the U.S. music scene. Following its success, Martin released "Livin' la Vida Loca" which helped him obtain enormous success worldwide and is generally seen as the song that began the Latin pop explosion of 1999 and made the transition easier for other Spanish-speaking artists to move into the English-speaking market. Since it's release, the song has sold over 8 million copies, making it one of the best selling singles of all time. His first English-language album (also titled Ricky Martin), has sold 22 million copies and is one of the best selling albums of all time. His other studio albums include: Me Amarás (1993), A Medio Vivir (1995), Vuelve (1998), Sound Loaded (2000), Almas del Silencio (2003), Life (2005), Música + Alma + Sexo (2011) and A Quien Quiera Escuchar (2015).