Cable television is a system of delivering television programming to consumers via radio frequency (RF) signals transmitted through coaxial cables, or in more recent systems, light pulses through fibre-optic cables. This contrasts with broadcast television, in which the television signal is transmitted over-the-air by radio waves and received by a television antenna ; or satellite television, in which the television signal is transmitted over-the-air by radio waves from a communications satellite and received by a satellite dish on the roof. FM radio programming, high-speed Internet, telephone services, and similar non-television services may also be provided through these cables. Analog television was standard in the 20th century, but since the 2000s, cable systems have been upgraded to digital cable operation.
Motorola, Inc. was an American multinational telecommunications company based in Schaumburg, Illinois. It was founded in 1928 as Galvin Manufacturing Corporation by brothers Paul and Joseph Galvin. The company changed its name to Motorola in 1947. After having lost $4.3 billion from 2007 to 2010, Motorola was split into two independent public companies, Motorola Mobility and Motorola Solutions, on January 4, 2011. The reorganization was structured with Motorola Solutions legally succeeding Motorola, Inc., and Motorola Mobility being spun off.
A cable modem is a type of network bridge that provides bi-directional data communication via radio frequency channels on a hybrid fibre-coaxial (HFC), radio frequency over glass (RFoG) and coaxial cable infrastructure. Cable modems are primarily used to deliver broadband Internet access in the form of cable Internet, taking advantage of the high bandwidth of a HFC and RFoG network. They are commonly deployed in the Americas, Asia, Australia, and Europe.
Digital cable is the distribution of cable television using digital data and video compression. The technology was first developed by General Instrument. By 2000, most cable companies offered digital features, eventually replacing their previous analog-based cable by the mid 2010s. During the late 2000s, broadcast television converted to the digital HDTV standard, which was incompatible with existing analog cable systems.
Adelphia Communications Corporation was an American cable television company with headquarters in Coudersport, Pennsylvania. It was founded in 1952 by brothers Gus and John Rigas after the pair purchased a cable television franchise for US$300. Combining various cable properties, the company became one of the most successful in the United States and reached over two million subscribers in 1998. In addition to cable television, Adelphia later started providing high-speed internet, phone services and voice messaging for businesses.
Hybrid fiber-coaxial (HFC) is a broadband telecommunications network that combines optical fiber and coaxial cable. It has been commonly employed globally by cable television operators since the early 1990s.
Raymond Philip Shafer was an American attorney and politician who served as the 39th governor of Pennsylvania from 1967 to 1971. Prior to that, he served as the 23rd lieutenant governor of Pennsylvania from 1963 to 1967 and as a Pennsylvania state senator from 1959 to 1962. He was a national leader of the moderate wing of the Republican Party in the late 1960s.
Milton Jerrold Shapp was an American businessman and politician who served as the 40th governor of Pennsylvania from 1971 to 1979 and the first Jewish governor of Pennsylvania. He was also the first governor of Pennsylvania to be eligible for, and re-elected to, consecutive four-year terms per the 1968 Pennsylvania Constitution.
General Instrument (GI) was an American electronics manufacturer based in Horsham, Pennsylvania, specializing in semiconductors and cable television equipment. They formed in New York City in 1923 as an electronics manufacturer. During the 1950s, the company began a series of acquisitions under the direction of Moses Shapiro. Among the more notable purchases was General Transistor in 1960, which led to GI becoming a major producer of transistors, and later, integrated circuits (ICs). By the late 1960s, the company was mostly depending on sales into the television industry, which was further bolstered by the 1967 purchase of Jerrold Electronics.
RF Micro Devices, was an American company that designed and manufactured high-performance radio frequency systems and solutions for applications that drive wireless and broadband communications. Headquartered in Greensboro, North Carolina, RFMD traded on the NASDAQ under the symbol RFMD. The Company was founded in Greensboro, North Carolina, in 1991. RF Micro had 3500 employees, 1500 of them in Guilford County, North Carolina.
Cable television first became available in the United States in 1948. By 1989, 53 million U.S. households received cable television subscriptions, with 60 percent of all U.S. households doing so in 1992. Most cable viewers in the U.S. reside in the suburbs and tend to be middle class; cable television is less common in low income, urban, and rural areas.
Addressability is the ability of a digital device to individually respond to a message sent to many similar devices. Examples include pagers, mobile phones and set-top boxes for pay TV. Computer networks are also addressable via the MAC address on Ethernet network cards, and similar networking protocols like Bluetooth. This allows data to be sent in cases where it is impractical to control exactly where or to which devices the message is physically sent.
A cable converter box or television converter box is an electronic tuning device that transposes/converts channels from a cable television service to an analog RF signal on a single channel, usually VHF channel 3 or 4, or to a different output for digital televisions such as HDMI.
Radio over fiber (RoF) or RF over fiber (RFoF) refers to a technology whereby light is modulated by a radio frequency signal and transmitted over an optical fiber link. Main technical advantages of using fiber optical links are lower transmission losses and reduced sensitivity to noise and electromagnetic interference compared to all-electrical signal transmission.
CommScope Holding Company, Inc. is an American network infrastructure provider based in Claremont, North Carolina. CommScope employs over 22,000 employees. The company joined the Nasdaq stock exchange on October 25, 2013.
The 1966 Pennsylvania gubernatorial election was held on November 8. Republican Ray Shafer, the state's incumbent Lieutenant Governor, was elected to the state's highest office after holding off a charge from future governor Milton Shapp.
Keneth Alden Simons was an American electrical engineer best known for his pioneering contributions to the technical development of cable television in the United States, for the most part as chief engineer for the Jerrold Electronics Corporation. Jerrold was one of the first manufacturers of cable television equipment and also constructed entire cable systems. Simons designed one of the first converters and the two most important pieces of the early test equipment, the Model 704 Field Strength Meter and Model 900 Sweep Frequency Generator. He also authored a seminal technical handbook on cable television systems, and served on national and international engineering standards committees. Fellow cable engineer Archer Taylor stated that Simons was seen as the leading technical expert at Jerrold for over two decades.
Governor Milton Shapp of Pennsylvania unsuccessfully sought the Democratic Party nomination for president of the United States in the 1976 election. Shapp won reelection as governor of Pennsylvania in the 1974 election, the first Pennsylvania governor to be elected to a second four-year term following an amendment permitting this in 1967, and had hoped to translate his relative popularity in Pennsylvania into the groundwork of a successful presidential campaign.
Yolanda G. Barco was an American lawyer and cable television (CATV) executive who played a key role in development of the cable industry.
George J. Barco was an American lawyer and cable television (CATV) executive who played a key role in development of the cable industry.
There are a number of sources available covering the history of Jerrold and the cable industry as a whole.
