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This is an index of articles relating to
electronics The field of electronics is a branch of physics and electrical engineering that deals with the emission, behaviour and effects of electrons using electronic devices. Electronics uses active devices to control electron flow by amplification ...
and electricity or natural electricity and things that run on electricity and things that use or conduct electricity.


0–9

16VSB
2VSB In telecommunications, 2VSB is an abbreviation for 2-level vestigial sideband modulation, a transmission method capable of transmitting one bit (21=2) at a time. Other faster but less rugged forms include 4VSB, 8VSB 8VSB is the modulation meth ...
32VSB
4000 series The 4000 series is a CMOS logic family of integrated circuits (ICs) first introduced in 1968 by RCA. It had a supply voltage range of 5V to 20V, which is much wider than any contemporary logic family. Almost all IC manufacturers active during t ...
4VSB 4VSB is an abbreviation for 4-level vestigial sideband modulation, a type of radio transmission capable of transmitting two bits of information (22=4) at a time. Other faster but less rugged forms include 8VSB 8VSB is the modulation method used ...
555 timer IC The 555 timer IC is an integrated circuit (chip) used in a variety of timer, delay, pulse generation, and Electronic oscillator, oscillator applications. Derivatives provide two (#556 dual timer, 556) or four (#558 quad timer, 558) timing circui ...
7400 series The 7400 series of integrated circuits (ICs) are a popular logic family of transistor–transistor logic (TTL) logic chips. In 1964, Texas Instruments introduced the SN5400 series of logic chips, in a ceramic semiconductor package. A lo ...
8VSB


A

Absolute gain (physics)
Access control In the fields of physical security and information security, access control (AC) is the selective restriction of access to a place or other resource, while access management describes the process. The act of ''accessing'' may mean consuming ...
Access time Access time is the time delay or latency between a request to an electronic system, and the access being completed or the requested data returned * In a computer, it is the time interval between the instant at which an instruction control uni ...
Acoustic coupler In telecommunications, an acoustic coupler is an interface device for coupling electrical signals by acoustical means—usually into and out of a telephone. The link is achieved through converting electric signals from the phone line to sound a ...
Adaptive communicationsAdder
Adjacent-channel interference Adjacent-channel interference (ACI) is interference caused by extraneous power from a signal in an adjacent channel. ACI may be caused by inadequate filtering (such as incomplete filtering of unwanted modulation products in FM systems), improp ...
Alarm sensor
Aliasing In signal processing and related disciplines, aliasing is an effect that causes different signals to become indistinguishable (or ''aliases'' of one another) when sampled. It also often refers to the distortion or artifact that results when ...
Allied Electronics Allied Electronics & Automation is a United States based authorized distributor of industrial automation products, electronic components and electromechanical products. Allied is a subsidiary of RS Group, and it is an ISO 9001:2008+AS9120A cert ...
Alternating current Alternating current (AC) is an electric current which periodically reverses direction and changes its magnitude continuously with time in contrast to direct current (DC) which flows only in one direction. Alternating current is the form in whic ...
AM radio AM broadcasting is radio broadcasting using amplitude modulation (AM) transmissions. It was the first method developed for making audio radio transmissions, and is still used worldwide, primarily for medium wave (also known as "AM band") transmis ...
Amateur radio Amateur radio, also known as ham radio, is the use of the radio frequency spectrum for purposes of non-commercial exchange of messages, wireless experimentation, self-training, private recreation, radiosport, contesting, and emergency commu ...
Ambient noise level In atmospheric sounding and noise pollution, ambient noise level (sometimes called background noise level, reference sound level, or room noise level) is the background sound pressure level at a given location, normally specified as a reference l ...
American Radio Relay League The American Radio Relay League (ARRL) is the largest membership association of amateur radio enthusiasts in the United States. ARRL is a non-profit organization, and was co-founded on April 6, 1914, by Hiram Percy Maxim and Clarence D. Tuska o ...
(ARRL) –
Ammeter An ammeter (abbreviation of ''Ampere meter'') is an instrument used to measure the current in a circuit. Electric currents are measured in amperes (A), hence the name. For direct measurement, the ammeter is connected in series with the circuit ...
Ampere The ampere (, ; symbol: A), often shortened to amp,SI supports only the use of symbols and deprecates the use of abbreviations for units. is the unit of electric current in the International System of Units (SI). One ampere is equal to elect ...
Amplifier An amplifier, electronic amplifier or (informally) amp is an electronic device that can increase the magnitude of a signal (a time-varying voltage or current). It may increase the power significantly, or its main effect may be to boost t ...
Amplitude distortion
Amplitude modulation Amplitude modulation (AM) is a modulation technique used in electronic communication, most commonly for transmitting messages with a radio wave. In amplitude modulation, the amplitude (signal strength) of the wave is varied in proportion to ...
Analog computer An analog computer or analogue computer is a type of computer that uses the continuous variation aspect of physical phenomena such as electrical, mechanical, or hydraulic quantities (''analog signals'') to model the problem being solved. In ...
Analog decodingAnalog
Analog-to-digital converter In electronics, an analog-to-digital converter (ADC, A/D, or A-to-D) is a system that converts an analog signal, such as a sound picked up by a microphone or light entering a digital camera, into a digital signal. An ADC may also provide ...
Analogue switch The analogue (or PETR) switch, also called the bilateral switch, is an electronic component that behaves in a similar way to a relay, but has no moving parts. The switching element is normally a pair of MOSFET transistors, one an N-channel device ...
Analysis of resistive circuits
Angular misalignment loss In waveguide design and construction, angular misalignment loss is power (physics), power loss caused by the deviation from optimum angular alignment of the axes of source-to-waveguide, waveguide-to-waveguide, or waveguide-to-detector. The waveguide ...
Antenna Antenna ( antennas or antennae) may refer to: Science and engineering * Antenna (radio), also known as an aerial, a transducer designed to transmit or receive electromagnetic (e.g., TV or radio) waves * Antennae Galaxies, the name of two collid ...
Antenna aperture In electromagnetics and antenna theory, the aperture of an antenna is defined as "A surface, near or on an antenna, on which it is convenient to make assumptions regarding the field values for the purpose of computing fields at external points. T ...
Antenna blind cone
Antenna gain In electromagnetics, an antenna's gain is a key performance parameter which combines the antenna's directivity and radiation efficiency. The term ''power gain'' has been deprecated by IEEE. In a transmitting antenna, the gain describes ho ...
Antenna height above average terrain Height above average terrain (HAAT), or (less popularly) effective height above average terrain (EHAAT), is the vertical position of an antenna site is above the surrounding landscape. HAAT is used extensively in FM radio and television, as it i ...
Antenna noise temperatureAntenna theory
Aperture (antenna) In electromagnetics and antenna theory, the aperture of an antenna is defined as "A surface, near or on an antenna, on which it is convenient to make assumptions regarding the field values for the purpose of computing fields at external points. T ...
Aperture-to-medium coupling loss In telecommunication, aperture-to-medium coupling loss is the difference between the theoretical antenna gain of a very large antenna, such as the antennas in beyond-the-horizon microwave links, and the gain that can be realized in practice. '' ...
Apollo Guidance Computer The Apollo Guidance Computer (AGC) was a digital computer produced for the Apollo program that was installed on board each Apollo command module (CM) and Apollo Lunar Module (LM). The AGC provided computation and electronic interfaces for guidanc ...
Arithmetic and logical unit
Armstrong oscillator The Armstrong oscillator (also known as the Meissner oscillator) is an electronic oscillator circuit which uses an inductor and capacitor to generate an oscillation. It is the earliest oscillator circuit, invented by US engineer Edwin Armstrong ...
ARRL The American Radio Relay League (ARRL) is the largest membership association of amateur radio enthusiasts in the United States. ARRL is a non-profit organization, and was co-founded on April 6, 1914, by Hiram Percy Maxim and Clarence D. Tuska o ...
Articulation scoreAstable
Asymmetric Digital Subscriber Line Asymmetric digital subscriber line (ADSL) is a type of digital subscriber line (DSL) technology, a data communications technology that enables faster data transmission over copper telephone lines than a conventional voiceband modem can provide. ...
Asynchronous communications systemAsynchronous operation
Asynchronous start-stop Asynchronous serial communication is a form of serial communication in which the communicating endpoints' interfaces are not continuously synchronized by a common clock signal. Instead of a common synchronization signal, the data stream conta ...
Atmospheric duct In telecommunications, an atmospheric duct is a horizontal layer in the lower atmosphere in which the vertical refractive index gradients are such that radio signals (and light rays) are guided or ducted, tend to follow the curvature of the Eart ...
Atmospheric waveguide {{Unreferenced, date=December 2008 An atmospheric waveguide is an Earth's atmosphere, atmospheric Fluid dynamics, flow feature that improves the propagation of certain atmospheric waves. The effect arises because wave parameters such as group veloc ...
Attenuation In physics, attenuation (in some contexts, extinction) is the gradual loss of flux intensity through a medium. For instance, dark glasses attenuate sunlight, lead attenuates X-rays, and water and air attenuate both light and sound at var ...
Audible ringing tone Ringing tone (audible ringing, also ringback tone) is a signaling tone in telecommunication that is heard by the originator of a telephone call while the destination terminal is alerting the receiving party. The tone is typically a repeated caden ...
Audio system measurements
Audiophile An audiophile is a person who is enthusiastic about high-fidelity sound reproduction. An audiophile seeks to reproduce the sound of a piece of recorded music or a live musical performance, typically inside closed headphones, In-ear monitors, open ...
Automatic call distributor An automated call distribution system, commonly known as automatic call distributor (ACD), is a telephony device that answers and distributes incoming calls to a specific group of terminals or agents within an organization. ACDs direct calls based ...
Automatic gain control Automatic gain control (AGC) is a closed-loop feedback regulating circuit in an amplifier or chain of amplifiers, the purpose of which is to maintain a suitable signal amplitude at its output, despite variation of the signal amplitude at the inpu ...
Automatic link establishment Automatic Link Establishment, commonly known as ALE, is the worldwide de facto standard for digitally initiating and sustaining HF radio communications. ALE is a feature in an HF communications radio transceiver system that enables the radio statio ...
Automatic number identification Automatic number identification (ANI) is a feature of a telecommunications network for automatically determining the origination telephone number on toll calls for billing purposes. Automatic number identification was originally created by the A ...
Automatic soundingAutomatic switching systemAutovon
Availability In reliability engineering, the term availability has the following meanings: * The degree to which a system, subsystem or equipment is in a specified operable and committable state at the start of a mission, when the mission is called for at ...
Avalanche diode In electronics, an avalanche diode is a diode (made from silicon or other semiconductor) that is designed to experience avalanche breakdown at a specified reverse bias voltage. The junction of an avalanche diode is designed to prevent current ...
Azimuth An azimuth (; from ar, اَلسُّمُوت, as-sumūt, the directions) is an angular measurement in a spherical coordinate system. More specifically, it is the horizontal angle from a cardinal direction, most commonly north. Mathematical ...


B

Backplane A backplane (or "backplane system") is a group of electrical connectors in parallel with each other, so that each pin of each connector is linked to the same relative pin of all the other connectors, forming a computer bus. It is used as a backbo ...
Backscattering In physics, backscatter (or backscattering) is the reflection of waves, particles, or signals back to the direction from which they came. It is usually a diffuse reflection due to scattering, as opposed to specular reflection as from a mirror, a ...
Back-to-back connection A back-to-back connection is the direct connection of the output of one device to the input of a similar or related device. Telecommunications In telecommunications, a back-to-back connection can be formed by connecting a transmitter directly to ...
Backward channel In a data transmission circuit a backward channel is the channel that passes data in a direction opposite to that of its associated forward channel. The backward channel is usually used for transmission of request, supervisory, acknowledgement ...
Balance return loss
Balanced line In telecommunications and professional audio, a balanced line or balanced signal pair is a circuit consisting of two conductors of the same type, both of which have equal electrical impedance, impedances along their lengths and equal impedances to ...
Balancing network
Ball grid array A ball grid array (BGA) is a type of surface-mount packaging (a chip carrier) used for integrated circuits. BGA packages are used to permanently mount devices such as microprocessors. A BGA can provide more interconnection pins than can be pu ...
Band gap In solid-state physics, a band gap, also called an energy gap, is an energy range in a solid where no electronic states can exist. In graphs of the electronic band structure of solids, the band gap generally refers to the energy difference ( ...
Band-stop filter In signal processing, a band-stop filter or band-rejection filter is a filter that passes most frequencies unaltered, but attenuates those in a specific range to very low levels. It is the opposite of a band-pass filter. A notch filter is a ...
Bandwidth compression
Bare particular Substance theory, or substance–attribute theory, is an ontological theory positing that objects are constituted each by a ''substance'' and properties borne by the substance but distinct from it. In this role, a substance can be referred to as a ...
Barrage jamming Barrage jamming is an electronic warfare technique that attempts to blind ("jam") radar systems by filling the display with noise, rendering the broadcaster's ''blip'' invisible on the display, and often those in the nearby area as well. "Barrage ...
Baseband In telecommunications and signal processing, baseband is the range of frequencies occupied by a signal that has not been modulated to higher frequencies. Baseband signals typically originate from transducers, converting some other variable i ...
Battery (electricity) An electric battery is a source of electric power consisting of one or more electrochemical cells with external connections for powering electrical devices. When a battery is supplying power, its positive terminal is the cathode and its nega ...
Baud In telecommunication and electronics, baud (; symbol: Bd) is a common unit of measurement of symbol rate, which is one of the components that determine the speed of communication over a data channel. It is the unit for symbol rate or modulat ...
Baudot code The Baudot code is an early character encoding for telegraphy invented by Émile Baudot in the 1870s. It was the predecessor to the International Telegraph Alphabet No. 2 (ITA2), the most common teleprinter code in use until the advent of ASCII ...
BCS theory BCS theory or Bardeen–Cooper–Schrieffer theory (named after John Bardeen, Leon Cooper, and John Robert Schrieffer) is the first microscopic theory of superconductivity since Heike Kamerlingh Onnes's 1911 discovery. The theory describes sup ...
Beam diameter The beam diameter or beam width of an electromagnetic beam is the diameter along any specified line that is perpendicular to the beam axis and intersects it. Since beams typically do not have sharp edges, the diameter can be defined in many differ ...
Beam divergence In electromagnetics, especially in optics, beam divergence is an angular measure of the increase in beam diameter or radius with distance from the optical aperture or antenna aperture from which the beam emerges. The term is relevant only in th ...
Beam steering Beam steering is a technique for changing the direction of the main lobe of a radiation pattern. In radio and radar systems, beam steering may be accomplished by switching the antenna elements or by changing the relative phases of the RF sign ...
Beamwidth The beam diameter or beam width of an electromagnetic beam is the diameter along any specified line that is perpendicular to the beam axis and intersects it. Since beams typically do not have sharp edges, the diameter can be defined in many differ ...
Beat frequency oscillator In a radio receiver, a beat frequency oscillator or BFO is a dedicated oscillator used to create an audio frequency signal from Morse code radiotelegraphy ( CW) transmissions to make them audible. The signal from the BFO is mixed with the receive ...
Bel BEL can be an abbreviation for: * The ISO 3166-1 alpha-3 country code for Belgium * ''BEL'' or bell character in the C0 control code set * Belarusian language, in the ISO 639-2 and SIL country code lists * Bharat Electronics Limited, an Indian sta ...
Biconical antennaBig ugly dishBilateral synchronizationBillboard antenna
Binary classification Binary classification is the task of classifying the elements of a set into two groups (each called ''class'') on the basis of a classification rule. Typical binary classification problems include: * Medical testing to determine if a patient has c ...
Binary multiplierBinaural recording
Bipolar junction transistor A bipolar junction transistor (BJT) is a type of transistor that uses both electrons and electron holes as charge carriers. In contrast, a unipolar transistor, such as a field-effect transistor, uses only one kind of charge carrier. A bipola ...
Bipolar signalBit inversionBit pairingBit robbing
Bit stuffing In data transmission and telecommunication, bit stuffing (also known—uncommonly—as positive justification) is the insertion of non-information bits into data. Stuffed bits should not be confused with overhead bits. Bit stuffing is used for ...
Bit synchronous operationBit-count integrity
Bits per second In telecommunications and computing, bit rate (bitrate or as a variable ''R'') is the number of bits that are conveyed or processed per unit of time. The bit rate is expressed in the unit bit per second (symbol: bit/s), often in conjunction ...
Black facsimile transmissionBlack recordingBlanketing
Bluetooth Bluetooth is a short-range wireless technology standard that is used for exchanging data between fixed and mobile devices over short distances and building personal area networks (PANs). In the most widely used mode, transmission power is limi ...
Blu-ray Disc The Blu-ray Disc (BD), often known simply as Blu-ray, is a digital optical disc data storage format. It was invented and developed in 2005 and released on June 20, 2006 worldwide. It is designed to supersede the DVD format, and capable of sto ...
BNC connector The BNC connector (initialism of "Bayonet Neill–Concelman") is a miniature quick connect/disconnect radio frequency connector used for coaxial cable. It is designed to maintain the same characteristic impedance of the cable, with 50 ohm and 7 ...
Boresight
Breadboard A breadboard, solderless breadboard, or protoboard is a construction base used to build semi-permanent prototypes of electronic circuits. Unlike a perfboard or stripboard, breadboards do not require soldering or destruction of tracks and are h ...
Bremsstrahlung ''Bremsstrahlung'' (), from "to brake" and "radiation"; i.e., "braking radiation" or "deceleration radiation", is electromagnetic radiation produced by the deceleration of a charged particle when deflected by another charged particle, typical ...
Bridging loss
Broadband Internet In telecommunications, broadband is wide bandwidth data transmission which transports multiple signals at a wide range of frequencies and Internet traffic types, that enables messages to be sent simultaneously, used in fast internet connections. ...
Broadband wireless access Wireless broadband is telecommunications technology that provides high-speed wireless Internet access or computer networking access over a wide area. The term comprises both fixed and mobile broadband. The term broadband Originally the word "b ...
Broadband In telecommunications, broadband is wide bandwidth data transmission which transports multiple signals at a wide range of frequencies and Internet traffic types, that enables messages to be sent simultaneously, used in fast internet connections. ...
Broadcasting Broadcasting is the distribution of audio or video content to a dispersed audience via any electronic mass communications medium, but typically one using the electromagnetic spectrum (radio waves), in a one-to-many model. Broadcasting began wi ...
Burst transmission In telecommunication, a burst transmission or data burst is the broadcast of a relatively high-bandwidth transmission over a short period. Burst transmission can be intentional, broadcasting a compressed message at a very high data signaling rate ...
Busy hour In telecommunications, busy-hour call attempts (BHCA) is a teletraffic engineering measurement used to evaluate and plan capacity for telephone networks. BHCA is the number of telephone calls attempted at the sliding 60-minute period during which o ...
Busy signal Reanno Devon Gordon (born 24 January 1979), better known by his stage name Busy Signal, is a Jamaican dancehall reggae artist. Biography Reanno Devon Gordon p/k/a Busy Signal was born in Saint Ann Parish,Johnson, Carolyn (2006)A Very Busy Chi ...
Bypass


C

Cable modem 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 primar ...
Cable television 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 bro ...
Caesium standard The caesium standard is a primary frequency standard in which the photon absorption by transitions between the two hyperfine ground states of caesium-133 atoms is used to control the output frequency. The first caesium clock was built by Louis ...
Call collision
Call set-up time In telecommunication, call setup is the process of establishing a virtual circuit across a telecommunications network. Call setup is typically accomplished using a signaling protocol. The term call set-up time has the following meanings: # ...
Call-second
Capacitive coupling Capacitive coupling is the transfer of energy within an electrical network or between distant networks by means of displacement current between circuit(s) nodes, induced by the electric field. This coupling can have an intentional or acciden ...
Capacitor A capacitor is a device that stores electrical energy in an electric field by virtue of accumulating electric charges on two close surfaces insulated from each other. It is a passive electronic component with two terminals. The effect of ...
Capture effect In a radio receiver, the capture effect, or FM capture effect, is a phenomenon associated with FM reception in which only the stronger of two signals at, or near, the same frequency or channel will be demodulated. FM phenomenon The capture ...
Carbon nanotube A scanning tunneling microscopy image of a single-walled carbon nanotube Rotating single-walled zigzag carbon nanotube A carbon nanotube (CNT) is a tube made of carbon with diameters typically measured in nanometers. ''Single-wall carbon na ...
Card standards
Carrier-sense multiple access with collision detection Carrier-sense multiple access with collision detection (CSMA/CD) is a medium access control (MAC) method used most notably in early Ethernet technology for local area networking. It uses carrier-sensing to defer transmissions until no other stati ...
Carrier shift
Carrier system A carrier system is a telecommunications system that transmits information, such as the voice signals of a telephone call and the video signals of television, by modulation of one or multiple carrier signals above the principal voice frequency or ...
Carrier wave In telecommunications, a carrier wave, carrier signal, or just carrier, is a waveform (usually sinusoidal) that is modulated (modified) with an information-bearing signal for the purpose of conveying information. This carrier wave usually has ...
Carrier-to-receiver noise density
Carson bandwidth rule In telecommunication, Carson's bandwidth rule defines the approximate bandwidth requirements of communications system components for a carrier signal that is frequency modulated by a continuous or broad spectrum of frequencies rather than a single ...
Cassegrain antenna In telecommunications and radar, a Cassegrain antenna is a parabolic antenna in which the feed antenna is mounted at or behind the surface of the concave main parabolic reflector dish and is aimed at a smaller convex secondary reflector suspende ...
Category 5 cable Category 5 cable (Cat 5) is a twisted pair cable for computer networks. Since 2001, the variant commonly in use is the Category 5e specification (Cat 5e). The cable standard provides performance of up to 100 MHz and is ...
Cathode ray tube A cathode-ray tube (CRT) is a vacuum tube containing one or more electron guns, which emit electron beams that are manipulated to display images on a phosphorescent screen. The images may represent electrical waveforms ( oscilloscope), ...
Central processing unit A central processing unit (CPU), also called a central processor, main processor or just processor, is the electronic circuitry that executes instructions comprising a computer program. The CPU performs basic arithmetic, logic, controlling, a ...
Chadless tapeChannelChannel noise levelChannel reliabilityCharacter-count integrity
Characteristic impedance The characteristic impedance or surge impedance (usually written Z0) of a uniform transmission line is the ratio of the amplitudes of voltage and current of a single wave propagating along the line; that is, a wave travelling in one direction i ...
Charge-coupled device A charge-coupled device (CCD) is an integrated circuit containing an array of linked, or coupled, capacitors. Under the control of an external circuit, each capacitor can transfer its electric charge to a neighboring capacitor. CCD sensors are a ...
Chemical vapor deposition Chemical vapor deposition (CVD) is a vacuum deposition method used to produce high quality, and high-performance, solid materials. The process is often used in the semiconductor industry to produce thin films. In typical CVD, the wafer (subst ...
Chirp A chirp is a signal in which the frequency increases (''up-chirp'') or decreases (''down-chirp'') with time. In some sources, the term ''chirp'' is used interchangeably with sweep signal. It is commonly applied to sonar, radar, and laser syste ...
Chroma subsampling Chroma subsampling is the practice of encoding images by implementing less resolution for chroma information than for luma information, taking advantage of the human visual system's lower acuity for color differences than for luminance. It is u ...
Circuit breaker A circuit breaker is an electrical safety device designed to protect an electrical circuit from damage caused by an overcurrent or short circuit. Its basic function is to interrupt current flow to protect equipment and to prevent the ris ...
Circuit noise level At any point in a transmission system, the ratio of the circuit noise Noise is unwanted sound considered unpleasant, loud or disruptive to hearing. From a physics standpoint, there is no distinction between noise and desired sound, as both a ...
Circuit reliabilityCircuit restoration
Circuit switching Circuit switching is a method of implementing a telecommunications network in which two network nodes establish a dedicated communications channel ( circuit) through the network before the nodes may communicate. The circuit guarantees the full ...
Circular polarization In electrodynamics, circular polarization of an electromagnetic wave is a polarization state in which, at each point, the electromagnetic field of the wave has a constant magnitude and is rotating at a constant rate in a plane perpendicular to ...
Circulator A circulator is a passive, non-reciprocal three- or four- port device that only allows a microwave or radio-frequency signal to exit through the port directly after the one it entered. Optical circulators have similar behavior. Ports are where ...
Citizens' band radio Citizens band radio (also known as CB radio), used in many countries, is a land mobile radio system, a system allowing short-distance person-to-many persons bidirectional voice communication among individuals, using two way radios operating on ...
CladdingClapp oscillator
Clean room A cleanroom or clean room is an engineered space, which maintains a very low concentration of airborne particulates. It is well isolated, well-controlled from contamination, and actively cleansed. Such rooms are commonly needed for scientif ...
Clear channelClearingClipping
Clock gating Clock gating is a popular technique used in many synchronous circuits for reducing dynamic power dissipation, by removing the clock signal when the circuit is not in use or ignores clock signal. Clock gating saves power by pruning the clock tree, ...
Clock signal In electronics and especially synchronous digital circuits, a clock signal (historically also known as ''logic beat'') oscillates between a high and a low state and is used like a metronome to coordinate actions of digital circuits. A clock si ...
Closed waveguide
Closed-circuit television Closed-circuit television (CCTV), also known as video surveillance, is the use of video cameras to transmit a signal to a specific place, on a limited set of monitors. It differs from broadcast television in that the signal is not openly tr ...
CMOS Complementary metal–oxide–semiconductor (CMOS, pronounced "sea-moss", ) is a type of metal–oxide–semiconductor field-effect transistor (MOSFET) fabrication process that uses complementary and symmetrical pairs of p-type and n-type MOSF ...
Coaxial cable Coaxial cable, or coax (pronounced ) is a type of electrical cable consisting of an inner conductor surrounded by a concentric conducting shield, with the two separated by a dielectric ( insulating material); many coaxial cables also have a p ...
Co-channel interference Co-channel interference or CCI is crosstalk from two different radio transmitters using the same channel. Co-channel interference can be caused by many factors from weather conditions to administrative and design issues. Co-channel interferen ...
Code-division multiple access Code-division multiple access (CDMA) is a channel access method used by various radio communication technologies. CDMA is an example of multiple access, where several transmitters can send information simultaneously over a single communicatio ...
Code word In communication, a code word is an element of a standardized code or protocol. Each code word is assembled in accordance with the specific rules of the code and assigned a unique meaning. Code words are typically used for reasons of reliability, ...
Coherence length In physics, coherence length is the propagation distance over which a coherent wave (e.g. an electromagnetic wave) maintains a specified degree of coherence. Wave interference is strong when the paths taken by all of the interfering waves di ...
– Coherence time – Coherence (physics), Coherence – Coherent differential phase-shift keying – Coherer – Coilgun – Collinear antenna array – Collinear antenna array – Collins Radio – Colpitts oscillator – Combat-net radio – Combinational logic – Combined distribution frame – Common base – Common battery – Common collector – Common control – Common emitter – Commonality – Common-mode interference – Communications center – Communications satellite – Communications security – Communications system engineering – Communications system – Communications-electronics – Compact audio cassette – Compatible sideband transmission – Composite image filter – Composite video – Compulsator – Computer – Concentrator – Conditioning equipment – Conducted interference – Conduction band – Conductive coupling – Connections per circuit hour – Conservation of radiance – Constant k filter – Content delivery – Contention (telecommunications), Contention – Continuous Fourier transform – Continuous operation – Continuous wave – Convolution – Copper – Cord circuit – Corner reflector – Cosmic noise – Costas loop – Coulomb's law – Counter (digital) – Coupling (electronics), Coupling – Covert channel – Covert listening device – CPU design – CQD – C-QUAM – Critical frequency – Cross product – Crossbar switch – Crosstalk – Crystal filter – Crystal radio receiver – Current (electricity), Current – Current bias – Current-to-voltage converter – Cutback technique – Cutoff frequency – Cutoff wavelength


D

D region – D4 video connector, D-4 – Data bank – Data circuit terminating equipment – Data compaction – Data integrity – Data link – Data service unit – Data terminal equipment – Data transmission circuit – Data – Datasheet – A-weighting, dBa – dBm – DBrn – DDR SDRAM – Degree of isochronous distortion – Delay line (disambiguation), Delay line – Delta modulation – Demand assignment – Demand factor – Demand load – Demodulation – Demodulator – Departure angle – Design objective – Despun antenna – Deviation (disambiguation), Deviation – Dial-up – Diamagnetism – Dielectric constant – Dielectric strength – Dielectric waveguide – Dielectric – Differential amplifier – Diffraction – Digital access and cross-connect system – Digital Audio Tape – Digital circuit – Digital filter – Digital multiplex hierarchy – Digital radio – Digital signal processing – Digital signal processor – Digital-to-analog converter – Digital transmission group – Digitizer – DIN – Diode – DIP switch – Dipole antenna – Dipole – Direct bandgap – Direct broadcast satellite – Direct current – Direct distance dialing – Direct ray – Directional antenna – Directional coupler – Directive gain – Direct-sequence spread spectrum – Discrete Fourier transform – Discrete signal, Discrete – Dispersion-limited operation – Display device – Distortion – Distortion-limited operation – Emergency locator beacon – Distributed switching – Diurnal phase shift – Diversity reception – DOD master clock – Doping (Semiconductors), Doping – Double-sideband suppressed-carrier transmission – Double-slit experiment – Drift (telecommunication), Drift – Drop and insert – Dropout (electronics), Dropout – Dual access – Dual impedance – Dual in-line package – Dual-modulus prescaler – Dual-tone multi-frequency – Duobinary signal – Duplex (telecommunications), Duplex – Duty cycle – DXCC – Dynamic range


E

Earphone – Earpiece – Earth's magnetic field – EDIF – EEPROM – Effective antenna gain contour – Effective boresight area – Effective data transfer rate – Effective Earth radius – Effective height – Effective input noise temperature – Effective isotropically radiated power – Effective monopole radiated power – Effective radiated power – Effective transmission rate – Efficiency factor – E-layer – Electric charge – Electric current – Electric field – Electric motor – Electric power transmission – Electric power – Electrical conduction – Electrical conductivity – Electrical connector – Electrical current – Electrical efficiency – Electrical element, Element – Electrical engineering – Electrical generator – Electrical impedance, Impedance – Electrical insulation, Insulation – Electrical length – Electrical load, Load – Electrical network – Electrical network, Circuit – Electrical resistance – Electrical room – Electrical signal – Electricity distribution – Electricity – Electrochemical cell – Electrochemistry – Electrode – Electrodynamics – Electrolytic capacitor – Electromagnetic environment – Electromagnetic induction – Electromagnetic interference control – Electromagnetic pulse – Electromagnetic radiation and health – Electromagnetic radiation – Electromagnetic spectrum – Electromagnetic survivability – Electromagnetism – Electrometer – Electron hole – Electron – Electronic amplifier – Electronic color code – Electronic color code, Color code – Electronic data processing – Electronic deception – Electronic design automation – Electronic filter – Electronic filter, Filter – Electronic imager – Electronic mixer – Electronic musical instrument – Electronic oscillator – Electronic power supply – Electronic switching system – Electronic tagging – Electronic test equipment – Electronic warfare support measures – Electronics – Electro-optic effect – Electro-optic modulator – Electro-optics – Electrostatic discharge – Electrostatics – Emergency Locator Transmitter – Emergency Position-Indicating Radio Beacon – Emitter coupled logic – End distortion – Endurability – Enhanced service – Entropy encoding – Equilibrium length – Equivalent impedance transforms – Equivalent noise resistance – Equivalent pulse code modulation noise – Error burst – Error ratio – Error-correcting code – E-skip – Examples of electrical phenomena – Extremely Low Frequency (ELF) – Eye pattern


F

Fab (semiconductors) – Fabrication (semiconductor), Semiconductor device fabrication – Facsimile converter – Fading – Fading distribution – Fail safe – Fall time – Fan-beam antenna – Farad – Faraday cage – Faraday constant – Faraday's law of induction – Far-field region – Fault (power engineering), Fault – Fault management – FCC registration program – Federal Standard 1037C – Feed horn – Feedback – Ferroelectric effect – Ferromagnetism – Field (physics) – Field (video), Field – Field effect transistor – Field strength – Field-programmable gate array, FPGA Field programmable gate array – Filled cable – Filter design – Filter (signal processing) – Flip-flop (electronics), Flip-flop – Fluorescent lamp – Flutter (electronics and communication), Flutter – Flux – Flywheel effect – FM band – FM improvement factor – FM improvement threshold – FM radio – Forward error correction – Fourier series – Fourier transform (see also List of Fourier-related transforms) – Four-wire circuit – Four-wire terminating set – Fractal antenna – Frame (telecommunications), Frame – Frame rate – Frame slip – Frame synchronization – Framing bit – Freenet – Free-space loss – Freeze frame television – Frequency assignment – Frequency averaging – Frequency counter – Frequency deviation – Frequency frogging – Frequency modulation synthesis – Frequency modulation – Frequency standard – Frequency synthesiser – Frequency – Frequency-division multiplexing – Frequency-exchange signaling – Frequency-hopping spread spectrum – Frequency-shift keying – Fresnel equations – Fresnel reflection – Fresnel zone – Front-to-back ratio – Fuel cell – Fuse (electrical)


G

Gallium arsenide – Galvanic isolation – Galvanometer – Gateway (telecommunications), Gateway – Gating signal, Gating – Gauss (unit), Gauss – Geiger–Müller tube – Gel electrophoresis – Gemini Guidance Computer – Gender changer – Global Positioning System – Global system for mobile communications – GNU Radio – Grade of service – Graded-index fiber – Ground constants – Ground loop (electricity), Ground loop – Ground plane – Ground (electricity) – Groundwave – Guided ray – Gyrator


H

Halftone characteristic – Hall effect – Hamming code – Hamming distance – Handoff – Handshake (computing) – Hard copy – Hardware register – Harmonic analysis – Harmonic oscillator – Harmonic – Hartley oscillator – H-channel – Heat sink – Helical antenna – Helmholtz coil – Henry (unit) – Hertz – Heterodyne repeater – Heterodyne – High frequency – High-performance equipment – High-speed circuit-switched data – Hop (telecommunications), Hop – Horn (telecommunications), Horn – Hot-point probe – Hybrid balance – Hybrid circuit – Hybrid coil – Hybrid coupler – Hysteresis


I

IEEE 315-1975 – IEEE 802.11 – IEEE 802.15 – IEEE 802 – Image antenna – Image impedance – Image frequency – Image rejection ratio – Image response – Impedance matching – In-band on-channel – Incidental radiator – Independent sideband – Index of cooperation – Inductive coupling – Inductive reactance – Inductor – Industrial Computers – Information transfer – Information-bearer channel – Infrared – Input/output – Insertion gain – Insertion loss – Inside plant – Integrated circuit – Intensity modulation – Intentional radiator – Telephone tapping, Intercept – Interchange circuit – Intercharacter interval – Interconnect facility – Interference (communication), Interference – Interferometry – Intermediate-field region – Intermodulation distortion – International Electrotechnical Commission – Interoperability – Interposition trunk – Intersymbol interference – Inverse multiplexer – Inverse-square law – Ion pump – Ionosphere – ISM band – Isochronous burst transmission – Isochronous signal – Isotropic antenna


J

Jam signal – Radio jamming, Jamming – Jansky – Jitter


K

Karnaugh map – Kendall effect – Key pulsing – Kirchhoff's circuit laws – Klystron – Knife-edge effect


L

Laser – Launch angle – Launch numerical aperture – Lead-lag effect – Leaky mode – Light bulb – Light-dependent resistor – Light-emitting diode – Lightning – Limiting – Line code – Linear-feedback shift register – Linear regulator – Lip synchronization – List of telephony terminology – Lists of video game companies – LM741 – Low noise amplifier – Loading characteristic – Loading coil – Sidelobe, Lobe – Local battery – Logic families – Logic gate – Logic – Log-periodic antenna – Long-haul communications – Longitudinal redundancy check – Long-tailed pair – Long-term stability – Loop (telecommunication), Loop – Loop gain – Loop-back – Low frequency – Low-performance equipment – Lumped element model


M

Macroelectronics – Magnet – Magnetic-core memory – Magnetic field – Magnetic flux quantum – Magnetic flux – Magnetic levitation – Magnetism – Magneto-optic effect – Magnetosphere – Magnetron – Main distribution frame – Main lobe – Manchester code – Maser – Mask work – Master frequency generator – Maximal-ratio combiner – Maximum power theorem, Maximum power – Maximum usable frequency – Maxwell coil – Maxwell's demon – Maxwell's equations – m-derived filter – Mean time between outages – Mediation function – Medium frequency (MF) – Medium-power talker – Medium wave – Metal – Michelson–Morley experiment – Microelectronics – Microphone – Microwave auditory effect – Microwave oven – Microwave – MIL-STD-188 – Minimum bend radius – Mode scrambler – Mode volume – Modem – Modular synthesizer – Modulation factor (disambiguation), Modulation factor – Modulation rate – Modulation – Molecular electronics – Monostable – Moore's law – Morse code – MOS Technology 6501 – MOS Technology 6502 – MOS Technology SID – MOS Technology VIC-II – Mu-law algorithm – Multicoupler – Multi-element dipole antenna – Multimeter – Multipath propagation – Multiple access – Multiple homing – Multiplex baseband – Multiplexer – Multiplexing – Multivibrator


N

N connector – Nanotechnology – Nanowire – Narrative traffic – Narrowband modem – Narrowband – National Electrical Code (US) – Natural frequency – Near-field region – Negative resistance – Negative-acknowledge character – Net gain (telecommunications) – Netlist – Network administration – Network architecture – Network management – Neural network – Neutral direct-current telegraph system – NI Multisim – Nickel metal hydride – Noise figure – Noise (electronics) – Noise power – Noise temperature – Noise weighting – Noise-cancelling headphone – Noise-equivalent power – Non-return-to-zero – Normalized frequency (disambiguation), Normalized frequency – Norton's theorem – NTSC – Nuclear electromagnetic pulse – Nuclear magnetic resonance – Null (radio) – Numbers station – Numerical aperture – Numerically controlled oscillator – Nyquist interval


O

Off-hook – Off-line – Ohm (unit) – Ohmmeter – Ohm's law – Oliver Heaviside – Omnidirectional antenna – One-way trunk – On-hook – On-line – Open circuit (disambiguation), Open circuit – Open spectrum – Operational amplifier – Optical density – Optical fiber – Optical path length – Optical spectrum – Optoelectronic – Orthogonal frequency division modulation – Orthomode transducer – Oscilloscope – Out-of-band signaling – Outside plant – Traffic shaping#Overflow condition, Overflow – Overhead information – Overmodulation – Manual override, Override – Overshoot (signal)


P

Packet switching – Packet-switching node – Paired disparity code – PAL – Par meter – Parabolic antenna – Parabolic microphone – Parallel transmission – Parasitic element (electrical networks) – Parity bit – Passband – Passive radiator – Patch bay – Path loss – Path profile – Pauli exclusion principle – PBER – PCB layout guidelines – Peak envelope power – Peltier effect – Performance measurement period – Periodic antenna – Periscope antenna – Permeability (electromagnetism), Permeability – Permittivity – Personal Locator Beacon – Phantom circuit – Phantom loop – Phase (waves), Phase – Phase distortion – Phase jitter – Phase modulation – Phase noise – Phase perturbation – Phased array – Phase-locked loop – Phase-shift keying – Philberth-Transformer – Phone connector (audio) – Photodiode – Photoelectric effect – Photolithography – Photon – Physical layer – Pick up (music technology), Pickup – PID controller – Piezoelectricity – Pin grid array – Pirate radio – Planar array – Planck's constant – Plesiochronous Digital Hierarchy – Point-to-point construction – Polarential telegraph system – Polarization (waves), Polarization – Polling (computer science), Polling – Polyphase system – Portable people meter – Potential difference – Potential divider – Power (physics), Power – Power connector (disambiguation), Power connector – Power supply – Preamplifier – Preemphasis network – Preemphasis – Preferred values – Preventive maintenance – Primary channel – Primary line constants – Primary time standard – Principal clock – Printed circuit board – Processor register – Product detector – Programmable logic device – Propagation delay – Propagation mode – Propagation path obstruction – Propagation of schema – Proration – Pseudorandom noise – Pseudorandom number sequence – PSK31 – Pulse amplitude – Pulse duration – Pulse – Pulse-address multiple access – Pulse-code modulation – Pulsed inductive thruster – Pulse-width modulation – Push-to-talk operation – Push-to-type operation – Pyroelectricity


Q

Q code – QRP operation – Q-switching – Quadrature amplitude modulation – Quadrature (disambiguation), Quadrature – Quality assurance – Quality control – Quantum harmonic oscillator – Quartz clock – Quasi-analog signal – Queuing delay


R

Race hazard – Radar – Radiation angle – Radiation mode – Radiation pattern – Radiation resistance – Radiator – Radio beam – Radio clock – Radio electronics – Radio frequency induction – Radio frequency – Radio horizon range – Radio horizon – Radio propagation – Radio range – Radio Row, Manhattan – Radio station – Radio – RadioShack – Radiotelephone – Radioteletype – Radix-64 – Railgun – Random-access memory – Randomizer – Ray transfer matrix analysis – RC circuit – RC (disambiguation)#Electronics, RC – RCA jack – RCA – Reactance (electronics), Reactance – Receive-after-transmit time delay – Received noise power – Receiver (radio), Receiver – Receiver attack-time delay – Reconnaissance satellite – Record medium – Reference antenna – Reference circuit – Clock signal, Reference clock – Reference noise – Reference surface – Reflection coefficient – Reflections of signals on conducting lines – Reflective array antenna – Refractive index contrast – Regenerative circuit – Register transfer level – Registered jack – Relational model – Relative transmission level – Relaxation oscillator – Relay – Release time (telecommunication), Release time – Remote Operations Service Element protocol – Remote sensing – Repair and maintenance – Repeater – Repeating coil – Reproduction speed – Reradiation – Resistor color code – Resistor – Resonance – Response time (disambiguation), Response time – Responsivity – Return loss – RF connector – RF modulator – RF power margin – RF probe – RF shielding – RFID – RGB color space – Rhombic antenna – Ring current – Ring latency – Ring modulation – Ringback signal – Ringdown – RL circuit – RLC circuit – Robot – Rogowski coil – Root mean square – Routing indicator – RS-232 – RX (disambiguation), RX – Rydberg formula


S

S/PDIF – Sacrificial anode – Sampling frequency – Scalar field – Scanner (disambiguation), Scanner – Scanning electron microscope – SCART – Schematic – Schumann resonance – Scrambler – SECAM – Second audio program – Second-order intercept point – Security management – Self-clocking signal – Self-synchronizing code – Semiautomatic switching system – Semiconductor device – Semiconductor – Sensitivity (electronics), Sensitivity – Sensor Networks – Separate channel signaling – Serial access – Serial ATA – Serial Peripheral Interface Bus – Serial transmission – Series and parallel circuits – Shadow loss – Shannon limit – Shannon's theorem – Short circuit – Shortwave – Shot noise – Shrinking generator – Side lobe – Sideband – Sidereal time – Siemens (unit), Siemens – Signal (information theory) – Signal compression (disambiguation), Signal compression – Signal processing gain – Signal processing – Signal reflection – Signal transition – Signal-to-crosstalk ratio – Signal-to-noise ratio – Signature block – Significant condition – Silicon bandgap temperature sensor – Silicon – Simplex circuit – Simplex signaling – Sinc filter – Single frequency networks – Single-phase electric power – Single-frequency signaling – Single-polarized antenna – Single-sideband modulation – Skew (antenna) – Skin effect – Skip zone – Skywave – Slant range – Slew rate, Slewing – Slew rate – Slot antenna – Slow-scan television – Software-defined radio – Solar cell – Soldering – Solenoid – Sound card – Space diversity – Space tether – Spark gap – Specific detectivity – Specification – Speckle pattern – Spectral width – Electromagnetic spectrum, Spectrum – Spectrum analyzer – Speed of light – Speed of service – SPICE – Spill-forward feature – Spillover (disambiguation), Spillover – Spin glass – Spot beam – Spread spectrum – Spurious emission – Squelch – Standard telegraph level – Standard test signal – Standard test tone – Standing wave ratio – Standing wave – Starpath Supercharger – Start signal – Start-stop transmission – Static electricity – Steady-state condition – Step-index profile – Stoletov's law – Stop signal – Stopband – Store-and-forward switching center – Stressed environment – Strobe light – Stroke speed – Subcarrier – Subtractive synthesis – Sudden ionospheric disturbance – Supercomputer – Superconductivity – Superheterodyne receiver – Superparamagnetism – Superposition theorem – Supervisory program – Suppressed carrier transmission – Surface wave – Surface-mount technology – Surveillance device – Survivability – S-Video – Switch – Switched-mode power supply – Synchronism (disambiguation), Synchronism – Synchronization – Synchronizing – Synchronous network – Synchronous optical networking – Synthesizer – System integrity – Systems control


T

Table of standard electrode potentials – Tactical communications system – Tactical communications – Tactical data information link--A – Tantalum – Tape relay – T-carrier – Technical control facility – Telecommunication – Telecommunication, Communications – Telecommunications service – Teleconference – Telegrapher's equations – Telegraphy – Telemetry – Telephone tapping – Teletext – Teletraining – Television – Television reception – TEMPEST – Tensor – Tesla coil – Tesla patents – Test antenna – Tether propulsion – Thermal noise – Thermistor – Thévenin's theorem – Third-order intercept point – Threaded Neill-Concelman connector, TNC connector – Three phase – Time-assignment speech interpolation – Time-division multiple access – Time-division multiplexing – Time-domain reflectometer – Timeout (computing), Time-out – Tinfoil hat – Toll switching trunk – Total harmonic distortion – Total internal reflection – Traffic intensity – Traffic shaping – Transceiver – Transcoding – Transducer – Transformer – Transient electromagnetic device – Transimpedance amplifier – Transistor radio – Transistor – Transistor-transistor logic – Transistor-transistor logic, TTL – Transition metal – Transmission coefficient – Transmission level point – Transmission line – Transmission medium – Transmission medium, Medium – Transmit-after-receive time delay – Transmitter attack-time delay – Transmitter – Transmitter-studio link – Transparent latch – Transponder – Transverse redundancy check – Traveling-wave tube – TRF (band), TRF – Triangle wave – Trimline telephone – Troposphere – Tropospheric ducting – Tropospheric wave – Tuner (electronics), Tuner – Twisted pair – Transmission (telecommunications), TX


U

Ultra high frequency – Ultra Wideband – Ultraviolet – Unavailability – Uncertainty principle – Uniform linear array – Unijunction transistor – Unintentional radiator – Uplink – Upright position (electronics) – User (telecommunications)


V

Alternating Current#Mathematics of AC voltages, VAC – Vačkář oscillator – Vacuum tube – Valence band – Variable length buffer – Varicap – Varistor – Volt, VDC – Vector field – Veroboard – Very high frequency – Very-large-scale integration – VHSIC hardware description language – Video cassette recorder – Video Game Console – Video Game – Video teleconference – Video teleconferencing unit – Video – Vintage amateur radio – Virtual circuit capability – Virtual circuit – Virtual ground – Voice frequency primary patch bay – Voice frequency – Volt- Voltage bias – Voltage-to-current converter – Voltmeter – Voice-operated switch, Vox


W

Wardenclyffe Tower – Warner exemption – Watt – Wave impedance – Wave propagation – Wave – Waveform – Waveguide antenna – Waveguide – Wavelength division multiplexing – Wavelength – Wheatstone bridge – Whip antenna – White facsimile transmission – Wideband modem – Williams tube – Wink pulsing – Wire wrap – Wire – Wireless access point – Wireless community network – Wireless network – Wireless personal area network – Wireless – X-dimension of recorded spot – XLR connector


Y

Yagi antenna – Y-delta transform – YUV


Z

Zero dBm transmission level point – Zero insertion force (ZIF) – Zero-dispersion wavelength – Zigbee – Zig-zag in-line package – Zobel network – Zone melting – Z-transform


See also

* {{DEFAULTSORT:Electronics topics Electronics lists Technology-related lists Wikipedia indexes