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Topic: Transmission (telecommunications)


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In the News (Wed 19 Jun 19)

  
  Transmission - Wikipedia, the free encyclopedia
Transmission (telecommunications), the act of transmitting electrical messages
Transmission (medicine) is the passing of a disease
Transmissions (album), the first album of trance musicians Juno Reactor.
en.wikipedia.org /wiki/Transmission   (196 words)

  
 Transmission (telecommunications) - Wikipedia, the free encyclopedia
In telecommunications, transmission is the act of transmitting electrical messages (and the associated phenomena of radiant energy that passes through media).
The propagation of a signal by any means, such as by telegraph, telephone, radio, television, or facsimile via any medium, such as wire, coaxial cable, microwave, optical fiber, or radio frequency.
In general information theory transmission is taken to mean the complete process of communication of information via a channel.
en.wikipedia.org /wiki/Transmission_(telecommunications)   (148 words)

  
 Telecommunications - MSN Encarta
Telecommunications usually involves a sender of information and one or more recipients linked by a technology, such as a telephone system, that transmits information from one place to another.
Telecommunications systems deliver messages using a number of different transmission media, including copper wires, fiber-optic cables, communication satellites, and microwave radio.
Telecommunications without wires, commonly referred to as wireless communications, use technologies such as cordless telephones, cellular radio telephones, pagers, and satellites.
encarta.msn.com /encnet/refpages/RefArticle.aspx?refid=761566546   (1265 words)

  
 TELECOMMUNICATIONS
The telecommunications subsystem provides voice, television, telemetry, and tracking and ranging communications between the spacecraft and earth, between the CM and LM, and between the spacecraft and astronauts wearing the portable life support system.
Transmission is controlled by either the push-to-talk switch located in the astronaut's umbilical cable or the voice-operated relay circuitry during recovery operations.
In the medium mode, one of the parabolic dish-reflector antennas is used for transmission and all four of the dish antennas are used for reception of S-band signals.
www.apollosaturn.com /asnr/p173-188.htm   (6351 words)

  
 Telecommunications
Telecommunications line installers and repairers, one of the largest occupations, work in a variety of places, both indoors and outdoors, and in all kinds of weather.
Telecommunications jobs are found in almost every community, but most employees work in cities that have large concentrations of industrial and business establishments.
Although the telecommunications industry employs workers in many different occupations, 55 percent of all workers are employed in either office and administrative support occupations or installation, maintenance, and repair occupations (table 1).
www.bls.gov /oco/cg/cgs020.htm   (3981 words)

  
 Telecommunications
Telecommunications used to be concerned with whether or not your phone rang when a customer called or did you even get a phone on your desk.
If the transmission was successful the transmitting station will send a short "end of transmission" message and return the line to the idle state.
As the telecommunications industry built new equipment it continued to follow old forms and procedures which were based on proven principles of communications.
www.informationfactory.com /btsec1.htm   (5328 words)

  
 Telecommunications
Telecommunications line installers and repairers work in a variety of places, both indoors and outdoors, and in all kinds of weather.
Although the telecommunications industry employs workers in many different occupations, 56 percent of all workers are employed in either office and administrative support occupations or installation, maintenance, and repair occupations (table 1).
Employment in the telecommunications industry is expected to increase 7 percent over the 2002-12 period, somewhat less than the 16 percent projected for all industries combined.
www.umsl.edu /services/govdocs/ooh20042005/www.bls.gov/OCO/cg/print/cgs020.htm   (4273 words)

  
 WowEssays.com - Telecommunications In Korea
CHAPTER 1: History of Telecommunications The first form of telecommunications in Korea began in 1885 with the first telegraph which linked Seoul and Inchon which were located 35 km apart.
Network Service Providers are telecommunications service providers who construct or own their own circuits and transmission facilities and must abide by common-carrier obligations, such as universal service.
The Telecommunications Basic Law was largely revised to encourage all parties concerned to invest in research and development into more sophisticated technologies and more relevant socioeconomic policies in the highly competitive telecommunications environment.
www.wowessays.com /dbase/ag3/kzo269.shtml   (7434 words)

  
 Telecommunications Technology Fundamentals > Transmission Lines   (Site not responding. Last check: 2007-10-31)
In the case of human communications, intelligent terminals at either end—human beings—can detect noise that may have affected a transmission and request a retransmission, thereby correcting for that error.
That is, it has two sets of one-way transmission paths: one path for each direction and a complementary path to complete the electrical circuit (see Figure 2.2).
The number of channels on a transmission line determines the number of simultaneous conversations that can be supported.
www.awprofessional.com /articles/article.asp?p=24687   (2252 words)

  
 Telecommunications | TutorGig.co.uk Encyclopedia   (Site not responding. Last check: 2007-10-31)
A telecommunications network is a network of telecommunication s links arranged so that messages may be passed from one part of the network to another over multiple links.
In telephony and telecommunications, a caller, also known as the A party, is the person or party who originates or dials a telephone call.
In telecommunications, cover is the technique of concealing or altering the characteristics of communications patterns for the purpose of denying an unauthorized receiver information that would be of value
www.tutorgig.co.uk /encyclopedia/sencyclo.jsp?keywords=Telecommunications   (428 words)

  
 2002 NAICS Definitions: 517 Telecommunications
The Telecommunications subsector is primarily engaged in operating, maintaining, and/or providing access to facilities for the transmission of voice, data, text, sound, and video.
Transmission facilities may be based on a single technology or a combination of technologies.
This industry comprises establishments primarily engaged in (1) providing specialized telecommunications applications, such as satellite tracking, communications telemetry, and radar station operations; or (2) providing satellite terminal stations and associated facilities operationally connected with one or more terrestrial communications systems and capable of transmitting telecommunications to or receiving telecommunications from satellite systems.
www.census.gov /epcd/naics02/def/NDEF517.HTM   (807 words)

  
 NATIONAL CABLE & TELECOMMUNICATIONS ASSN. V.BRAND X INTERNET SERVICES
In the telecommunications context, it is at least reasonable to describe companies as not “offering” to consumers each discrete input that is necessary to providing, and is always used in connection with, a finished service.
The Commission said that a telecommunications input used to provide an information service that is not “separable from the data-processing capabilities of the service” and is instead “part and parcel of [the information service] and is integral to [the information service’s] other capabilities” is not a telecommunications offering.
By contrast, the high-speed transmission used to provide cable modem service is a functionally integrated component of that service because it transmits data only in connection with the further processing of information and is necessary to provide Internet service.
www2.law.cornell.edu /supct/html/04-277.ZO.html   (7873 words)

  
 Telecommunications Act
"transmission facility" means any wire, cable, radio, optical or other electromagnetic system, or any similar technical system, for the transmission of intelligence between network termination points, but does not include any exempt transmission apparatus.
In default of payment, a rate charged by a Canadian carrier in accordance with this Act for a telecommunications service constitutes a debt due to the carrier and may be recovered in a court of competent jurisdiction.
The said chapter 66 is further amended by substituting a reference to the "Canadian Radio-television and Telecommunications Commission" for the references to the "Board of Railway Commissioners for Canada" wherever the latter appears in sections 8, 9 and 22.
www.efc.ca /pages/law/canada/telecom.html   (9038 words)

  
 Deutsches Museum - Telecommunications   (Site not responding. Last check: 2007-10-31)
When we make a local telephone call which relies on an entirely analog process, the conversion of the sound waves produced by the voice is effected with the aid of a microphone, their transmission is along copper wires, and their reconversion takes place in the loudspeaker of the earpiece.
Six displays provide a short history of telecommunications, from the ancient use of beacons and the mechanical optical telegraphs introduced just after the French revolution, to computer-supported multifunctional telecommunications systems.
Equipment used for the transmission of texts includes the earliest surviving electric telegraph, built by Soemmerring in 1811, a Morse code device, a telex terminal, and a personal computer.
www.deutsches-museum.de /ausstell/dauer/telekomm/e_tele.htm   (648 words)

  
 Telecommunications Technology
Telecommunications includes the use of computer networks, satellite systems, AM and FM radio, and television along with microwave communications.
Telecommunications Technology at BCC is designed to prepare the student for immediate employment.
Telecommunications equipment will be presented and the frequency spectrum, modulation and multiplexing techniques explored.
www.sunybroome.edu /~eet_dept/tlcbcc.html   (660 words)

  
 Telecommunications
Emrise's telecommunications subsidiary CXR Larus Corporation is a leader in the design and development of Timing and synchronization systems essential for the efficient operation of the worlds digital telecommunication infrastructure.
Emrise's telecommunications subsidiary CXR, is a leader in the provision of products for accessing public and private networks for the transmission of voice, data and video.
Emrise's telecommunications subsidiary CXR Larus develops, manufactures and markets a focused range of test instruments used by the operators of public and private telecommunications networks, utility companies, government agencies for the installation, maintenance and optimization of advanced public and private communications networks.
www.emrise.com /operating_groups/telecommunications   (342 words)

  
 Tyco Telecommunications Labs Set New Undersea Optical Transmission Records
Tyco Telecommunications continues to apply its technological expertise and leadership in the field of undersea optical transmission technology by developing optical transmission solutions that reduce the cost for telecommunication service providers to send data over transoceanic routes.
Tyco Telecommunications Labs has announced that, within a laboratory demonstration, it has sent 2.56 terabits of data per second over a distance of 11,000 km by sending 10 Gb/s of data over each of 256 separate channels in a single fiber.
Tyco is the world's largest manufacturer and servicer of electrical and electronic components; the world's largest designer, manufacturer, installer and servicer of undersea telecommunications systems; the world's largest manufacturer, installer and provider of fire protection systems and electronic security services, and the world's largest manufacturer of specialty valves.
www.prnewswire.com /cgi-bin/stories.pl?ACCT=105&STORY=/www/story/04-16-2002/0001707031   (517 words)

  
 Telecommunications Transmission Handbook 4e, Freeman - ISBN 0471240184 - ELX.com.au (Australia)
For more than 23 years, Telecommunications Transmission Handbook has been the guide to designing and building telecommunications transmission systems and the reference of choice among a generation of communications engineers and technicians.
Its total systems approach examines each telecommunications transmission specialty as an integral part of a larger system.
In the course of over 45 years of experience in telecommunications operations, maintenance, and engineering, he has served as principal engineer for advanced system planning at Raytheon Company, technical manager of ITT Marine, Europe, and regional planning expert for the International Telecommunications Union (ITU).
www.elx.com.au /item/0471240184   (332 words)

  
 1997 NAICS Definitions: 513 Broadcasting and Telecommunications
The Telecommunications industry group is primarily engaged in operating, maintaining, and/or providing access to facilities for the transmission of voice, data, text, sound, and full motion picture video between network termination points.
This industry group comprises establishments primarily engaged in operating, maintaining or providing access to facilities for the transmission of voice, data, text, and full motion picture video between network termination points and telecommunications reselling.
This industry comprises establishments engaged in (1) operating and maintaining switching and transmission facilities to provide direct communications via landlines, microwave, or a combination of landlines and satellite linkups or (2) furnishing telegraph and other nonvocal communications using their own facilities.
www.census.gov /pub/epcd/naics/NDEF513.HTM   (1045 words)

  
 2005-2006 Course Register
This course is designed to provide an understanding of the physcial aspects of telecommunications systems.
This course is aimed at students in the Telecommunications and Networking Program (TNP) in SEAS, but should also be of interest to students in CIS, SE and BE (ESE graduate students should take ESE 576 and not TCOM 570).
The course covers the following areas: Data and multimedia sources and transmission requirements, Fourier series and transforms, channel bandwidth, Transmission media, Sampling, analog to digital conversion, Digital modulation schemes, synchronization, modems, Information content of binary sources, entropy, Source coding for compression, Noise and channel capacity, Block and convolutional codes.
www.upenn.edu /registrar/register/tcom.html   (1577 words)

  
 North American Industry Classification (NAICS) 2002 - Classification
This industry group comprises establishments primarily engaged in operating and maintaining satellite telecommunications facilities for the transmission of voice, data, text, sound and full motion picture videos.
This industry comprises establishments primarily engaged in operating and maintaining satellite telecommunications facilities for the transmission of voice, data, text, sound and full motion picture videos.
This Canadian industry comprises establishments primarily engaged in operating and maintaining satellite telecommunications facilities for the transmission of voice, data, text, sound and full motion picture videos.
stds.statcan.ca /english/naics/2002/naics02-class-search.asp?criteria=517   (995 words)

  
 Telecommunications transmission, telecommunications switching: US Ultracom
Telecommunications Transmission and Telecommunications Switching: US Ultracom is Leading the Way
Telecommunications tranmission provider U.S. Ultracom is a leader in the telecommunications transmission industry, providing high quality telecommunications switching equipment and professional, reliable service nationwide.
We update our available telecommunications switching inventory regularly, so please check back often.
www.usultracom.com   (135 words)

  
 Wiley::Subscriber Loop Signaling and Transmission Handbook: Digital
Electrical Engineering / Telecommunications Subscriber Loop Signaling and Transmission Handbook Digital "Reeve has, again, done an excellent job!…very accurate…defines terms in a simple, plain and clear manner…deals with very practical, real-world information…makes an excellent textbook!" Sam Fowler, Questar Corporation "…this is a much needed work that is very dynamic.
It provides a comprehensive description of the methods, requirements, and standards used in the telecommunications industry for digital baseband transmission between a communication system user and a public or private network.
Detailed technical requirements and transmission design procedures for repeatered TI-carrier, high bit rate digital subscriber line (HDSL), ISDN digital subscriber line, digital loops associated with the digital data services, and optical fibers used in loop applications.
www.wiley.com /WileyCDA/WileyTitle/productCd-0780360486.html   (453 words)

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