A communication path between two points; also commonly called a circuit, line, or link.
A communications path via a carrier or microwave radio.
Physical path for analog or digital transmission of voice, data, facsimile or television images between two telephones or other terminals.
A single discrete radio frequency. The radio spectrum is split into thousands of sections each of which is often called a channel. In most radio systems users only communicate on one channel at any time.
Discrete, single grouping of audio information played through a sound system resulting in a steady flow of sound from one single source; for example a stereo system with two speakers has two channels, one left channel and one right channel. The channel is simply a single sound path. An audio system may have multiple channels or information routes. An amplifier may have one channel (mono), two channels (stereo), three channels, four channels, five channels or more (some amplifiers have up to 12 channels).
(1) A path between two computers or communications devices. A channel can refer to the physical pathway (such as a coaxial cable) or, in wireless media, to the specific carrier frequency. (2) A high-speed metal or fiber-optic pathway between a mainframe or other high-end computer and the control units of peripheral devices. (3) The mechanisms through which a vendor communicates with and sells products to its customers. This might include a sales force, distributors, resellers, agents, retailers, direct mail, telemarketing, e-mail, or the Internet.
Generically speaking, a channel is a communications path between two or more communicating devices. Channels are also referred to as links, lines, circuits, and paths. In the mainframe environment, the channel is the path between the host computer and a controller device.
A frequency or band of frequencies assigned to a station or communications system. Also, a sub-circuit of a larger system, i.e., voice channel, control channel, paging channel.
the smallest subdivision of a circuit that provides a type of communication service; usually a path with only one direction
A single path, either RF or voice, for transmitting electrical signals between a sending point and receiving point. Channels are often measured in terms of the amount of spectrum they occupy (bandwidth) measured in Hertz.
Electrical path furnished by the telephone company for communications purposes between two or more points.
The path along which a communications signal is transmitted.
2 meanings for this in the rc world. First, it can be the number of channels that the model has, eg a 1 channel model may have just motor or rudder control while a 2 channel model will have motor and rudder, etc etc. Second, the channel number refers to the radio frequency which you're using. More details here.
(1) A path along which signals can be sent; for example, data channel and output channel. (2) A functional unit, controlled by the processor, that handles the transfer of data between processor storage and local peripheral equipment. Channel interface The circuitry in a storage control that attaches storage paths to a host channel.
For broadcasting, channel refers to the portion of the radio frequency spectrum assigned to a particular station in its license. For VHF and UHF TV signals, channel also refers to a numbered analog position where the receiving set accepts those signals. In mobile and cellular radio, a channel is the smallest subdivided width of a frequency range that will support communication, usually expressed in kilohertz. The bandwidth of a radio channel depends on the type of transmission and the frequency tolerance. A channel is usually assigned for a specified radio service to be provided by a specified transmitter.
A physical or logical path for the transmission of information.
A 6 MHz (bandwidth) section of spectrum for over-the-air broadcast (channels 2 – 69) or in TV cable that carries one analog NTSC program or one or more DTV programs. losed Captioning: A data stream included in broadcast signal that provides text and/or narrative description of dialogue, sounds, and other elements of the picture for viewers with visual or auditory impairments.
A path or circuit along which information flows.
A general term for a path on which electronic signals travel.
a single path for communications. Channels may be one or two-directional, but only one communication can take place at one time. Channels are separated by conducting path, frequency, time and other things.
A unique radio frequency that is used for communication between subscriber unit and cell site base station.
The path used by a message; a means of transportation connects a sender and receiver.
A complete control path for signals in lighting or sound equipment.
A 'pipe' that carries a signal frequency.
A general term used to describe a communications path between two systems. They may be either physical or logical depending on the application. An RF channel is a physical channel, whereas control and traffic channels within the RF channel would be considered logical channels.
In telecommunications contexts, channel refers to any path between 2 devices. A channel can be anything from a wire linking 2 computers in a network to a specific radio frequency in a wireless application (radio or television, for instance). Client In a standard client/server relationship, the client is the user application that requests information. A common use of client/server is web browsing. The user's browser acts as the client and the computer delivering the requested information is the server.
(1) The electrical path between data communications equipment. (2) A specific and discrete bandwidth allocation in the radio frequency (Rf) spectrum such as a broadband local-area network (LAN) utilized to transmit one information signal at a time.
the bed of a stream or river, the path of ground through which a river flows
A place in RAM to deposit transactions when sending from one process to another process in a multitasking environment. A waiting place for data (mailbox). The path for transmitting data from a device to the host. In RF networks, it is the frequency hopping sequence the card follows. The 2.4 GHz bandwidth can be divided into 15 different channels.
A path for voice or signal transmission utilizing modulation of light or alternating current within a frequency band.
An audio circuit or signal path within a piece of audio equipment. In a mixer it refers to an input channel (all of the controls and circuitry that affects a single microphone or line-level device), or an output channel (all of the controls and circuitry that affects a single output). channel strip The physical controls arranged in a line on a mixing console that affect one channel (usually one input).
Path of Decimation, passing through a Gate.
A telecommunications path (pipe) of a specific capacity (speed) between two locations in a network. (See DS-0 through DS-4)
Circuitry necessary to receive the signal from one GPS satellite.
A specified frequency band for the transmission and reception of electromagnetic signals, as for television signals.
One audio recording made on a portion of the width of a multitrack tape, a single path that an audio signal travels or can travel through a device from an input to an output
A particular band of frequencies to be occupied by one signal, or one 2-way conversation in a given mode
1. A communication path. Multiple channels can be multiplexed over a single cable in certain environments. 2. In IBM, the specific path between large computers (such as mainframes) and attached peripheral devices.
a path through which communication flows. a person used in this way. E.g. George plays a role in which he is a channel for the Zzarians.
In wireless, a designated radio frequency available for use by the transmitter and receiver. In audio, the circuit path for a specific signal, or a functional unit that is designed to independently process a signal.
1. n. A path along which signals can be sent, for example, data channel, output channel. 2. n. In data communication, a means of one-way transmission. 3. n. A functional unit, controlled by the processor, that handles the transfer of data between processor storage and local peripheral equipment.
The term channel is often used interchangeably with the word transponder with the same meaning. However, the word channel refers more accurately to the absolute frequency range over which the transponder operates (e.g. 11 GHz +/- 18 MHz), rather than to the amplification process itself. A channel is normally defined by its centre frequency and its usable bandwidth.
A path from a source of data to a user of data. Can be a physical set of wires or a path through software.
a pin or wire lead to which you apply or form which you read the analog or digital signal.
A range of frequencies assigned to a signal in an FDM transmission system.
A 1.23 MHz wide frequency band that contains multiple CDMA circuits.
A specific frequency band for transmitting or receiving signals, (i.e. different signal frequencies give you different television channels). For UVIS, a part of the instrument sensitive to a particular frequency band.
An electrical path for the transfer of data and control information between a disk and a disk controller.
The path an audio signal travels through a circuit during playback.
A digital effects processing path for video. A particular signal path. A portion of the television broadcast spectrum assigned to a particular broadcasting station.
A segment of the frequency spectrum that includes a carrier frequency with its attendant sidebands.
The propagating medium (i.e., cable or electromagnetic path) connecting the transmitter and receiver.
A frequency pair. There are currently 832 channels (including those for control signals) assigned to cellular use. See also CONTROL SIGNAL, FREQUENCY PAIR.
the frequency or talkgroup a radio is operating on.
Circuitry necessary for a GPS receiver to receive signals from a single GPS satellite.
A communication path or the signal sent over that path. See also: Optical Channel.
A Channel is a specific frequency range, usually only one MHz wide and separated from other channels by as few as five MHz, that a WiFi adapter has access to at any given time. The Channel spread and frequencies are as follow: Channel Frequency (MHz) 2412 2417 2422 2427 2432 2437 2442 2447 2452 10 2457 11 2462 12 2467 13 2472
One of a number of discrete frequency ranges utilized by a base station to transmit and receive information from cellular terminals (such as mobile handsets).
The width of the spectrum band taken up by a radio signal, usually measured in kilohertz (kHz).
Often used interchangeably with "feed". Each RSS channel can contain up to 15 items. These items can be articles, blog entries or virtually any kind of document found on the World Wide Web. An RSS channel is the Internet equivalent of a radio station or TV channel, broadcasting news and information to anyone who wants to receive it.
Generally means a path or throughput capacity over which a specified type of communications can be carried, particularly as part of a larger carrying capacity. For example, it would be more appropriate to call one specific 64Kbps circuit on a T-1, a channel rather than a circuit. [Back to Glossary Table of Contents
In communications, any connecting path that carries information from a sending device to a receiving device. A channel may refer to a physical medium (for example, coaxial cable) or to a specific frequency within a larger channel. (2) An instance of medium use for the purpose of passing protocol data units that can be used simultaneously, in the same volume of space, with other instances of medium use on other channels by instances of the same PHY, with an acceptably low frame error rate due to mutual interference Some PHYs only provide one channel, whereas others provide multiple channels.
In computer telephony (voice processing), a channel is a logical path that is used for voice processing (see also entries for Port and Line to avoid confusion).
Communications path between two devices. 9.31- 39
Frequency Modulation Pan slider link
A transmission facility with defined frequency response, gain, and bandwidth; the basic unit rented from the telephone company. Also called a "line" or a "circuit."
The band or designation of a range of frequencies allocated for a specific purpose
The segment of the radiation spectrum to or from an antenna which carries one signal. An antenna may radiate on many channels simultaneously.
1. A communications path between two computers or devices. 2. A category of topics for LiveSecurity broadcasts (e.g., Virus Alerts, Editorials, etc.). LiveSecurity Service subscribers can turn on and off which channels they receive by logging in at www.watchguard.com/archive login, and then clicking Broadcast Preferences.
A 6 Mhz (bandwidth) section of broadcasting spectrum allocated for one analog NTSC transmission.
In audio, a channel is an internal audio path maintained separately from other audio paths of identical function. Mixer input strips are examples of channels, but an audio snake also has channels.
In television, a portion of the RF spectrum 6 MHz wide which carries the audio and video carriers of the television signal.
a radio frequency assignment made according to the frequency band being used and the geographic location of the send/receive sites.
A frequency band assigned by the FCC for AM, FM or TV transmission. Each broadcast television station is permitted to operate on only one channel. Channels are assigned geographically to minimize interference between stations. A "channel" is also a Web site that automatically delivers information to the user's computer at times specified by the user. Any Web site can be a channel.
In television, a single path or section of the spectrum 6 MHz wide, which carries a television signal.
A dedicated frequency on which a broadcast takes place.
All the circuitry (software and hardware) needed to receive the signals of one GPS, GLONASS, or SBAS satellite.
A specific frequency allocation and bandwidth. Downstream channels used for television are 6 MHz wide in the United States, 8 MHz wide in Europe.
In components and systems, a channel is a separate signal path. A four-channel amplifier has at least four separate inputs and four separate outputs.
A pair of frequencies used by the mobile (i.e. one send and one receive frequency).
A path of communication between two points. An abbreviation for communication channel. See also communication channel.
The circuitry in a GPS receiver necessary to tune the signal from a single GPS satellite.
A channel of a GPS receiver consists of the circuitry necessary to receive the signal from a single GPS satellite.
A path along which a communications signal is transmitted.
An electrical transmission path between two or more stations. Channels may be furnished by wire, radio, fibre or a combination of all three.
As in television channel; the television broadcast frequency. The over-the-air television channel assignments are set by the FCC (VHF or UHF) However, NJN also transmits its broadcast signal to cable which is assigned a tune-in number on your TV.
Any path used for the transfer of data and control information between storage devices and a storage controller or I/O adapter. Also refers to one SCSI bus on a disk array controller.
In products, a channel is any path used for the transfer of data and control information between storage devices and a storage controller or I/O adapter. As a market segment, channel refers to sales made through resellers. For Adaptec this includes distributors, value-added resellers (VARs) who integrate Adaptec branded products into their solutions, and the retailers who stock our consumer products.
Path for transmitting electromagnetic signals; often used as a synonym for line or link.
In a home theater, channel refers to the separate signal paths created for various audio channels. In a typical 5.1 channel home theater, the audio for a movie is divided into 5 channels plus one channel for a subwoofer (this is the .1 channel).
The GPS receiver's circuitry, necessary to receive any signal, from a specific, single GPS satellite.
In components and systems, a channel is an individual signal path comprising at least one input and one output.
The specific frequency or channel number which is used to receive a Station. [ edit
The control path from the desk to the dimmer.
refers to the width-modulation of the pulses by the telephone lines entering a station, providing a 'channel' for the transmission of data.
An electrical signal path. In analog audio (such as a mixer), each channel consists of separate wired components. In the digital domain, channels may share wiring, and are kept separate through logical operations. MIDI provides definitions for 16 channels, which transmit not audio signals but digital control signals for triggering synthesizers and other devices.
A frequency band, 6 MHz wide in the US, in which a specific broadcast signal is transmitted. Channel frequencies are determined in the US by the Federal Communications Commission (FCC).
the data path to the DAS from one CCD. Channels have numbers 0 to 7.
A path or circuit along which information travels. Most channels are measured in terms of their capacity, or bandwidth.
A generic term for a communications path on a given medium; multiplexing techniques allow providers to put multiple channels over a single medium. See also multiplexer.
This is the single transmission path for the data.
The smallest subdivision of a circuit, usually with a path in only one direction.
1. When used in reference to a Dialogic digital expansion board, a data path, or the activity happening on that data path. 2. When used in reference to the CEPT telephony standard, one of 32 digital data streams (30 voice, 1 framing, 1 signaling) carried on the 2.048 MHz/sec E-1 frame. (See time slot.) 3. When used in reference to a bus, an electrical circuit carrying control information and data.
An voice I/O port on a voice board. 1. When used in reference to a Dialogic board that is analog, an audio path, or the activity happening on that audio path (for example, in "the channel goes off-hook"). 2. When used in reference to a Dialogic board that is digital, a data path, or the activity happening on that data path. 3. When used in reference to a bus, an electrical circuit carrying control information and data.
The path an audio signal travels to a speaker during playback. The number of channels varies depending on the audio source. Mono signals found in older TV programs have one channel of sound. Stereo signals have two channels, one path for left and one path for right. Surround sound signals include 5+ channels with paths for each front, center and rear speaker.
As in television channel; the television broadcast frequency. The over-the-air television channel assignments are set by the FCC and are currently found in the VHF or UHF band. During the transition period each television broadcast station is being permitted to operate a 2nd channel for DTV. The DTV assignment will be different than the channel currently being used by the station. WHYY'S DTV assigned channel is 50. However, WHYY transmits its "virtual ID," which designates the channel as 12.1. During the transition period which will range from 7 to 15 years, U.S. television stations will be able to broadcast on their current channel and their new DTV frequency. At the end of the transition, the stations will broadcast only their DTV signal. WHYY's DTV service wil return to VHF channel 12 at the end of the transition.
1. When used in reference to a Dialogic analog expansion board, an audio path, or the activity happening on that audio path (for example, when you say the channel goes off-hook). 2. When used in reference to a Dialogic digital expansion board, a data path, or the activity happening on that data path. 3. When used in reference to a bus, an electrical circuit carrying control information and data.
Common name for a transmission frequency.
An information transfer path within a system. May also refer to the mechanism by which the path is effected.
A communications line; the path or route by which information is relayed.
A band of frequencies allocated for communications.
Path for electrical communication between two facilities. Also called a circuit, link or path.
Refers to a communications path between two computers or devices. It can refer to the physical medium (the wires) or to a set of properties that distinguishes one channel from another.
The data path between two nodes.
A path of communication, either electrical or electromagnetic, between two or more points.
One of several signal/data paths that may be selected.
The circuit path of an information signal.
A single path for communications, usually in distinction from other parallel paths. Channels may be separated from one another in many ways, including different conducting paths, different frequencies, or different times. Channels may be single directions only or a two-way path. (3) The essential feature of a channel is that one communication can take place at a time. (2)
In audio, a distinct path for a signal; stereo signals have two channels; multichannel systems such as Dolby Digital, DTS, and Dolby Surround (Pro Logic) use additional channels for a center speaker in front and surround speakers at the sides or rear. In Dolby Digital and DTS, an LFE channel is devoted to loud low-frequency sound effects. In broadcasting, a channel is a specified frequency band assigned to carry a station’s signal.
Strictly, a channel is a single direction path (or simplex path) along which a signal can be sent. However, in common usage the term is synonymous with circuit.
The end-to-end transmission path connecting any two pieces of application-specific equipment. Equipment cables and work area cables are included in the channel.
A band of radio frequencies assigned for a particular purpose, usually for the establishment of one complete communication link, or a path for an electrical signal. This term is often used interchangeably with Transponder, but in general the channel bandwidth is less than the transponder bandwidth.
A frequency band in which a specific broadcast signal is transmitted. Channel frequencies are specified in the United States by the Federal Communications Commission. Television signals require a 6 MHz frequency band to carry all the necessary picture detail.
A separate path through which voice or data can flow.
A signal path of specified bandwidth for conveying information such as voice, data and video.
A channel of a GPS receiver consists of the radio frequency, circuitry, and software necessary to tune the signal from a signal GPS satellite.
An electrical, electromagnetic, or optical path for communication between two points.
A channel is generally thought of as a separate path through which signals can flow. (1) In radio and television, a channel is a separate incoming signal or program source that a user can select. (2) In the public switched telephone network ( PSTN), a channel is one of multiple transmission paths within a single link between network points. For example, the commonly used (in North America) T-carrier system line service provides 24 64 Kbps channels for digital data transmission. (3) In optical fiber transmission using dense wavelength-division multiplexing ( DWDM), a channel is a separate wavelength of light within a combined, multiplexed light stream.
There are two definitions for the word channel in radio control. 1. It can refer to the channel number or frequency of operation of a control system. 2. It may also refer to one of the operating functions of a radio system. For example, a 4-channel radio system would have four control functions: aileron, rudder, throttle and elevator.
Telecommunications path of a specific capacity and/or speed between two or more locations on a network. The channel may be established via wire, radio (microwave), fibre or a combination of the three.
A particular set of one transmit frequency and one receive frequency in the RF band.
The amount of wireless spectrum occupied by a specific technology implementation. For cellular, there is a transmit side and a receive side. For example, a 5 MHz channel uses 5 MHz to transmit and 5 MHz to receive for a total of 10 MHz of wireless spectrum.
An electronic communications path. In digital telephony, a channel usually refers to a separate connection carried on a digital trunk.
the pair of frequencies (input and output) used by a repeater
A path for electrical transmission between two or more points. Also called a link, line, circuit or facility.
In the satellite industry the term channel is often used interchangeably with the word transponder However, channel refers more accurately to the absolute frequency range over which the transponder operates (e.g. 11 GHz +/- 18 MHz). A related meaning of channel is TV or Radio Channel, which characterizes the creation and distribution of broadcast content.
The combination of a carrier frequency and all of the sidebands and subcarriers that are part of the same signal.
A path for digital transmission signals.
As in television channel; the television broadcast frequency. The over-the-air television channel assignments are set by the FCC and are currently found in the VHF or UHF band. Each television broadcast station is being assigned a matching channel for DTV. The DTV Channel assignment is different than the channel currently being used by the analog station. KQED's assigned DTV channel is 30. However, KQED transmits its "virtual ID," which designates the channel as 9.1, 9.2, etc. During the transition period, which is scheduled to end February 2009, U.S. television stations will be able to broadcast on their current channel and their new DTV frequency. At the end of the transition, the stations will broadcast only their DTV signal.
a memory location used to store a single frequency
Specific wavelengths of onboard satellite sensors.
A frequency band designation in which specific bandwidth parameters are established. Satellites channels are referred to as transponders. Channel frequencies in the United States are specified by the Federal Communications Commision. Television signals require a minimum of 6 MHz to carry all necessary picture details and information.
The pair of frequencies (input and output) a repeater operates on.
A path or link through which noncontrol information passes between two devices. A single Basic Rate Interface (BRI) connection, for example, has one physical connection but two channels for exchanging information between devices. This is often called a bearer channel, implying a channel that carries information. On the Internet, a Web site designed to deliver content from the Internet to your computer, similar to subscribing to a favorite Web site. See also: active content; B-channel; D-channel
A frequency subdivision of a bandwidth. Most RF applications divide their allocated bandwidth into different channels.
A signal path. Stereo consists of two channels, starting from the signal source, and ending at the loudspeakers. Multichannel audio can have 5, 6 or 7 channels, plus a so-called .1 channel for low bass sound effects.
A path (electrical or logical) along which signals can be sent between points.
The logical conversation path. It is the frequency band, time slot, or wavelength (also referred to as lambda) over which a given conversation flows.
On the radio, this is usually a synonym of a specific frequency, and by extension the communication medium. It can also mean a stream of data between two nodes (a point to point link in connection oriented systems)
In audio, a distinct path for a signal that is being recorded or played back. Standard stereo has two channels. Pro Logic-decoded audio still has two, but they carry two additional "matrixed" channels. Dolby Digital and DTS audio have five full-range channels and a subwoofer channel. In video, a signal transmitted at a particular frequency.
A carrier frequency assignment, usually with a fixed bandwidth.
Communication circuit linking two or more devices. A channel provides an input/output interface between a processor and a peripheral device, or between two systems. A single physical circuit can consist of one or many channels, or two systems carried on a physical wire or wireless medium. For example, the dedicated channel between a telephone and the central office (CO) is a twisted-pair copper wire. See also frequency-division multiplexed channel and time-division multiplexed channel.
A communications path or the signal sent over that path. Through multiplexing several channels, voice channels can be transmitted over an optical channel.
An information transfer path within a system or the mechanism by which the path is affected.
(Wireless) A path for communications. A range of radio frequencies used by a transceiver during communication.
An electrical path over which trans-missions can be made from one station (unit) to another.
a single path of audio through a mixer, processor array, recording channel, or computer interface
In broadcasting, a channel is a range of frequencies (or, equivalently, wavelengths) assigned by a government for the operation of a particular broadcast station. In common usage, the term also may be used to refer to the station operating on a particular frequency.