Short coaxial cables are commonly used to connect home video equipment, or in ham radio setups. They used to be common for implementing computer networks, in particular Ethernet, but twisted pair cables have replaced them in most applications. Long distance coaxial cable is used to connect radio networks and television networks, though this has largely been superseded by other more high-tech methods (fibre optics, T1/E1, satellite). It ...

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Coaxial cable, Coaxial cable - Signal propagation in coaxial cable, Coaxial cable - Important parameters, Coaxial cable - Standard cable types, Coaxial cable - Uses of coaxial cable, Coaxial cable - Types of coaxial cable, Coaxial cable - Interference and troubleshooting, Coaxial cable - Timeline

Read more here: » Coaxial cable: Encyclopedia II - Coaxial cable - Uses of coaxial cable

Including:

Coaxial cable - Signal propagation in coaxial cable Coaxial cable - Important parameters Coaxial cable - Standard cable types Coaxial cable - Uses of coaxial cable Coaxial cable - Types of coaxial cable Coaxial cable - Interference and troubleshooting Coaxial cable - Timeline

Read more here: » Coaxial cable: Encyclopedia - Coaxial cable

In broadcasting and other forms of radio communication, hard line is a very heavy-duty coaxial cable, where the outside shielding is a rigid or semi-rigid pipe, rather than flexible and braided wire. Hard line is very thick, typically at least a half inch or 13 mm and up to several times that, and has low loss even at high power. It is almost always used in the connection between a transmitter on the ground and the antenna or aerial on the tower. Hard lines are often made to be pressurised with nitrogen or desiccated air, which provid ...

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Coaxial cable, Coaxial cable - Signal propagation in coaxial cable, Coaxial cable - Important parameters, Coaxial cable - Standard cable types, Coaxial cable - Uses of coaxial cable, Coaxial cable - Types of coaxial cable, Coaxial cable - Interference and troubleshooting, Coaxial cable - Timeline

Read more here: » Coaxial cable: Encyclopedia II - Coaxial cable - Types of coaxial cable

A cable modem is a special type of modem that is designed to modulate a data signal over cable television infrastructure. Cable modems are primarily used to deliver broadband Internet access, taking advantage of unused bandwidth on a cable television network. There were 22.5 million cable modem users in the United States during Q1 2005. That's up from 17.4 million in Q1 2004. It is also commonly found in Latin America. Cable modems should not be confused with older LAN systems such as 10base2 or 10base5 that used coaxial cables ...

Including:

Cable modem - Cable Internet Access Cable modem - CDLP Cable modem - Cable Modems and VoIP Cable modem - Cable modem manufacturers

Read more here: » Cable modem: Encyclopedia - Cable modem

Most coaxial cables have a characteristic impedance of either 50, 52, 75, or 93 ohms. The RF industry uses standard type-names for coaxial cables. A series of standard types of coaxial cable were specified for military uses, in the form "RG-#" or "RG-#/U" (RG from Radio Guide, /U indicates multiple uses). They go back to World War II and were listed in MIL-HDBK-216 published in 1962. These desigations are now obsolete. The current military standard is MIL-SPEC MIL-C-17. MIL-C-17 numbers, such as M17/75-RG214.are g ...

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Coaxial cable, Coaxial cable - Signal propagation in coaxial cable, Coaxial cable - Important parameters, Coaxial cable - Standard cable types, Coaxial cable - Uses of coaxial cable, Coaxial cable - Types of coaxial cable, Coaxial cable - Interference and troubleshooting, Coaxial cable - Timeline

Read more here: » Coaxial cable: Encyclopedia II - Coaxial cable - Standard cable types

Open wire transmission lines have the property that the electromagnetic wave propagating down the line extends into the space surrounding the parallel wires. These lines have low loss, but also have undesirable characteristics. They cannot be bent, twisted or otherwise shaped without changing their characteristic impedance. They also cannot be run along or attached to anything conductive, as the extended fields will induce currents in the n ...

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Coaxial cable, Coaxial cable - Signal propagation in coaxial cable, Coaxial cable - Important parameters, Coaxial cable - Standard cable types, Coaxial cable - Uses of coaxial cable, Coaxial cable - Types of coaxial cable, Coaxial cable - Interference and troubleshooting, Coaxial cable - Timeline

Read more here: » Coaxial cable: Encyclopedia II - Coaxial cable - Signal propagation in coaxial cable

Despite being shielded, interference can occur on coaxial cable lines. Eventually, the insulation degrades and the cable must be replaced, especially if it has been exposed to the elements on a continuous basis. The copper screen is normally grounded, and if even a single thread touches the inner copper core, the signal will be shorted out. This most often occurs at improperly installed end connectors and splices. Also, the connector or splice must be properly attached to the copper screen, as this provides the return electrical path for the ...

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Coaxial cable, Coaxial cable - Signal propagation in coaxial cable, Coaxial cable - Important parameters, Coaxial cable - Standard cable types, Coaxial cable - Uses of coaxial cable, Coaxial cable - Types of coaxial cable, Coaxial cable - Interference and troubleshooting, Coaxial cable - Timeline

Read more here: » Coaxial cable: Encyclopedia II - Coaxial cable - Interference and troubleshooting

Cable radio or cable FM is a complementary concept to that of cable television, bringing radio transmissions into homes and businesses via coaxial cable. It is generally used as cable TV was in its early days when it was "community antenna television", to enhance the quality of signals that are difficult to receive in an area. However, cable-only radio outlets also exist. The use of cable radio varies from area to area — some cable TV systems don't include it at all, and others only have something approaching it on dig ...

Read more here: » Cable radio: Encyclopedia - Cable radio

Despite being shielded, interference can occur on coaxial cable lines. Eventually, the insulation degrades and the cable must be replaced, especially if it has been exposed to the elements on a continuous basis. The copper screen is normally grounded, and if even a single thread touches the inner copper core, the signal will be shorted out. This most often occurs at improperly installed end connectors and splices. Also, the connector or splice must be properly attached to the copper screen, as this provides the return electrical path for the signal. Low frequency singals (below 100 ...

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Coaxial cable, Coaxial cable - Signal propagation in coaxial cable, Coaxial cable - Important parameters, Coaxial cable - Standard cable types, Coaxial cable - Uses of coaxial cable, Coaxial cable - Types of coaxial cable, Coaxial cable - Interference and troubleshooting, Coaxial cable - Timeline

Read more here: » Coaxial cable: Encyclopedia II - Coaxial cable - Interference and troubleshooting

A balun is a device designed to convert between balanced and unbalanced electrical signals, such as between coaxial cable and ladder line. Baluns can be considered as simple forms of transmission line transformers. Balun - Construction. This is almost always done through the use of a small isolation transformer, with the earth ground or chassis ground left floating or unconnected on the balanced side. This transformer can then also perform impedance matching at the same time. A balun generally ...

Including:

Balun - Construction Balun - Radio equipment applications
Balun - Narrow-band designs Balun - Wide-band designs
Balun - Audio equipment Balun - Power line communications Balun - External references

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In geometry, coaxial means that two or more forms share a common axis; it is the three-dimensional analog of "concentric". Coaxial cable, for example, has a conducting wire in the center and a second conducting layer running all the way around the exterior circumference, under the insulation. The inner and outer conductors are separated by an insulating layer known as dielectric. Choice of materials and dimensions determines the cable's electrical properties, ...

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Cable television or Community Antenna Television (CATV) (often shortened to cable) is a system of providing television, FM radio programming and other services to consumers via radio frequency signals transmitted directly to people’s televisions through fixed optical fibers or coaxial cables as opposed to the over-the-air method used in traditional television broadcasting (via ...

Including:

Cable television - History of U.S. cable television and its regulation
Cable television - The birth of public access television
Cable television - Programming
Cable television - United States
Cable television - Cable television fees and programming lineups
Cable television - Mexico Cable television - United Kingdom Cable television - Republic of Ireland Cable television - Hong Kong Cable television - Singapore Cable television - Australia
Cable television - Other cable-based services

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Data Over Cable Service Interface Specification (DOCSIS) is an international standard developed by CableLabs which defines the communications and operation support interface requirements for a data over cable system. It permits the addition of high-speed data transfer to an existing cable TV (CATV) system. It is employed by many cable television operators to provide Internet access over their existing hybrid fibre coaxial (HFC) infrastructure. The first DOCSIS specification was version 1.0, issued in March of 1997, with revision 1.1 f ...

Including:

DOCSIS - Features
DOCSIS - DOCSIS 3.0
DOCSIS - Equipment DOCSIS - Transfer rate

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Communications in Israel: Telephones - main lines in use: 2.9 million (2003) Telephones - mobile cellular: 6.4 million (2003) Telephone system: most highly developed system in the Middle East although not the largest domestic: good system of coaxial and fiber-optic cable and microwave radio relay; all systems are digital international: 3 submarine cables; satellite earth stations - 3 Intelsat (2 Atlantic Ocean and 1 Indian Ocean) Radio broadcast stations: AM 23, FM 1 ...

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Telephones - main lines in use: 19 million (1997) 39 million (2005) Telephones - mobile cellular: 4 million (1997) 80 million (2005) Telephone system: good working system domestic: extensive microwave radio relay system and a domestic satellite system with 64 earth stations international: 3 coaxial submarine cables; satellite earth stations - 3 Intelsat (Atlantic Ocean), 1 Inmarsat (Atlantic Ocean region east), connected by microwave relay system to MERCOSUR Brazilsat B3 satellite earth station Radio broadcast statio ...

Read more here: » Communications in Brazil: Encyclopedia - Communications in Brazil

Communications in Lebanon - Telephones in Lebanon. Telephones - main lines in use: 700,000 (2003) Telephones - mobile cellular: 600,000 (2003) Telephone system: telecommunications system severely damaged by civil war; rebuilding well underway domestic: primarily microwave radio relay and cable international: satellite earth stations - 2 Intelsat (1 Indian Ocean and 1 Atlantic Ocean) (erratic operations); coaxial cable to Syria; microwave radio rel ...

Including:

Communications in Lebanon - Telephones in Lebanon Communications in Lebanon - Broadcasting in Lebanon
Communications in Lebanon - Radio broadcast stations: Communications in Lebanon - Major radio stations Communications in Lebanon - Radios: Communications in Lebanon - Television broadcast stations: Communications in Lebanon - Lebanese television standard Communications in Lebanon - Major television networks Communications in Lebanon - Televisions:
Communications in Lebanon - The Internet in Lebanon

Read more here: » Communications in Lebanon: Encyclopedia - Communications in Lebanon

Transmission line - Coaxial cable. Main article: coaxial cable Coaxial lines confine the electromagnetic wave to the area inside the cable, between the center conductor and the shield. The transmission of energy in the line occurs totally through the dielectric inside the cable between the conductors. Coaxial lines can therefore be bent and twisted (subject to limits) without negative effects, and th ...

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Transmission line, Transmission line - History, Transmission line - The four terminal model, Transmission line - Telegraphers equations, Transmission line - The equations, Transmission line - Direction of signal propagation, Transmission line - Cable impedance variation with frequency, Transmission line - Example, Transmission line - Practical types of electrical transmission line, Transmission line - Coaxial cable, Transmission line - Microstrip, Transmission line - Stripline, Transmission line - Balanced lines, Transmission line - General applications of transmission lines, Transmission line - Transfering signals from one point to another, Transmission line - Pulse generation, Transmission line - Lecher lines, Transmission line - Acoustic transmission lines, Transmission line - Patents, Transmission line - Reference

Read more here: » Transmission line: Encyclopedia II - Transmission line - Practical types of electrical transmission line

Oliver Heaviside developed the transmission line model, also known as the telegrapher's equations, that describes how electrical voltage and current vary along a conductor. The theory applies to high-frequency transmission lines (such as telegraph wires and radio frequency conductors) but is also important for designing high-voltage energy transmission lines. The equations consist of two linear differential equations in time and position: one for V(x,t) and the other one for I(x,t). The model demonstrates that the electrical current can be reflected on the wire, and that wave patterns can appear along the line. ...

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Transmission line, Transmission line - History, Transmission line - The four terminal model, Transmission line - Telegraphers equations, Transmission line - The equations, Transmission line - Direction of signal propagation, Transmission line - Cable impedance variation with frequency, Transmission line - Example, Transmission line - Practical types of electrical transmission line, Transmission line - Coaxial cable, Transmission line - Microstrip, Transmission line - Stripline, Transmission line - Balanced lines, Transmission line - General applications of transmission lines, Transmission line - Transfering signals from one point to another, Transmission line - Pulse generation, Transmission line - Lecher lines, Transmission line - Acoustic transmission lines, Transmission line - Patents, Transmission line - Reference

Read more here: » Transmission line: Encyclopedia II - Transmission line - Telegraphers equations

The term cable Internet access (or simply cable) refers to the delivery of Internet service over this infrastucture. Along with DSL technology, cable modems ushered in the age of broadband Internet access in developed countries. Cable modems usually deliver speeds comparable to that of DSL, however, DSL modems generally have better upload speeds. Prior to the availability of such systems, Internet access involved slow dia ...

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Cable modem, Cable modem - Cable Internet Access, Cable modem - CDLP, Cable modem - Cable Modems and VoIP, Cable modem - Cable modem manufacturers

Read more here: » Cable modem: Encyclopedia II - Cable modem - Cable Internet Access

In television, amateur radio, and other antenna installations and connections, to convert between 300 ohm ribbon cable (balanced) and 75 ohm coaxial cable (unbalanced) or to directly connect a balanced antenna to (unbalanced) coax. To avoid EMC problems it is a good idea to connect a centre fed dipole antenna to coaxial cable via a balun. The baluns used for home television antennas have a 4:1 impedance ratio, to match the sta ...

See also:

Balun, Balun - Construction, Balun - Radio equipment applications, Balun - Narrow-band designs, Balun - Wide-band designs, Balun - Audio equipment, Balun - Power line communications, Balun - External references

Read more here: » Balun: Encyclopedia II - Balun - Radio equipment applications