Index of electronics articles

Last updated

This is an index of articles relating to electronics and electricity or natural electricity and things that run on electricity and things that use or conduct electricity.

Contents


0–9

16VSB2VSB32VSB4000 series4VSB555 timer IC7400 series8VSB

A

Absolute gain (physics)Access controlAccess timeAcoustic couplerAdaptive communicationsAdderAdjacent-channel interferenceAlarm sensorAliasingAllied ElectronicsAlternating currentAM radioAmateur radioAmbient noise levelAmerican Radio Relay League (ARRL) – AmmeterAmpereAmplifierAmplitude distortionAmplitude modulationAnalog computerAnalogAnalog-to-digital converterAnalogue switchAnalysis of resistive circuitsAngular misalignment lossAntennaAntenna apertureAntenna blind coneAntenna gainAntenna height above average terrainAntenna noise temperatureAntenna theoryAperture (antenna)Aperture-to-medium coupling lossApollo Guidance ComputerArithmetic and logical unitArmstrong oscillatorARRLArticulation scoreAstableAsymmetric Digital Subscriber LineAsynchronous communications systemAsynchronous operationAsynchronous start-stopAtmospheric ductAtmospheric waveguideAttenuationAudible ringing toneAudio system measurementsAudiophileAutomatic call distributorAutomatic gain controlAutomatic link establishmentAutomatic number identificationAutomatic soundingAutomatic switching systemAutovonAvailabilityAvalanche diodeAzimuth

B

BackplaneBackscatteringBack-to-back connectionBackward channelBalance return lossBalanced lineBalancing networkBall grid arrayBand gapBand-stop filterBandwidth compressionBare particularBarrage jammingBasebandBattery (electricity)BaudBaudot codeBCS theoryBeam diameterBeam divergenceBeam steeringBeamwidthBeat frequency oscillatorBelBiconical antennaBig ugly dishBilateral synchronizationBillboard antennaBinary classificationBinary multiplierBinaural recordingBipolar junction transistorBipolar signalBit inversionBit pairingBit robbingBit stuffingBit synchronous operationBit-count integrityBits per secondBlack facsimile transmissionBlack recordingBlanketingBluetoothBlu-ray DiscBNC connectorBoresightBreadboardBremsstrahlungBridging lossBroadband InternetBroadband wireless accessBroadbandBroadcastingBurst transmissionBusy hourBusy signalBypass

C

Cable modemCable televisionCaesium standardCall collisionCall set-up timeCall-secondCapacitive couplingCapacitorCapture effectCarbon nanotubeCard standardsCarrier-sense multiple access with collision detectionCarrier shiftCarrier systemCarrier waveCarrier-to-receiver noise densityCarson bandwidth ruleCassegrain antennaCategory 5 cableCathode ray tubeCentral processing unitChadless tapeChannelChannel noise levelChannel reliabilityCharacter-count integrityCharacteristic impedanceCharge-coupled deviceChemical vapor depositionChirpChroma subsamplingCircuit breakerCircuit noise levelCircuit reliabilityCircuit restorationCircuit switchingCircular polarizationCirculatorCitizens' band radioCladdingClapp oscillatorClean roomClear channelClearingClippingClock gatingClock signalClosed waveguideClosed-circuit televisionCMOSCoaxial cableCo-channel interferenceCode-division multiple accessCode wordCoherence lengthCoherence timeCoherenceCoherent differential phase-shift keyingCohererCoilgunCollinear antenna arrayCollinear antenna arrayCollins RadioColpitts oscillatorCombat-net radioCombinational logicCombined distribution frameCommon baseCommon batteryCommon collectorCommon controlCommon emitterCommonalityCommon-mode interferenceCommunications centerCommunications satelliteCommunications securityCommunications system engineeringCommunications systemCommunications-electronicsCompact audio cassetteCompatible sideband transmissionComposite image filterComposite videoCompulsatorComputerConcentratorConditioning equipmentConducted interferenceConduction bandConductive couplingConnections per circuit hourConservation of radianceConstant k filterContent deliveryContentionContinuous Fourier transformContinuous operationContinuous waveConvolutionCopperCord circuitCorner reflectorCosmic noiseCostas loopCoulomb's lawCounter (digital)CouplingCovert channelCovert listening deviceCPU designCQDC-QUAMCritical frequencyCross productCrossbar switchCrosstalkCrystal filterCrystal radio receiverCurrentCurrent biasCurrent-to-voltage converterCutback techniqueCutoff frequencyCutoff wavelength

D

D regionD-4Data bankData circuit terminating equipmentData compactionData integrityData linkData service unitData terminal equipmentData transmission circuitDataDatasheetdBadBmDBrnDDR SDRAMDegree of isochronous distortionDelay lineDelta modulationDemand assignmentDemand factorDemand loadDemodulationDemodulatorDeparture angleDesign objectiveDespun antennaDeviationDial-upDiamagnetismDielectric constantDielectric strengthDielectric waveguideDielectricDifferential amplifierDiffractionDigital access and cross-connect systemDigital Audio TapeDigital circuitDigital filterDigital multiplex hierarchyDigital radioDigital signal processingDigital signal processorDigital-to-analog converterDigital transmission groupDigitizerDINDiodeDIP switchDipole antennaDipoleDirect bandgapDirect broadcast satelliteDirect currentDirect distance dialingDirect rayDirectional antennaDirectional couplerDirective gainDirect-sequence spread spectrumDiscrete Fourier transformDiscreteDispersion-limited operationDisplay deviceDistortionDistortion-limited operationEmergency locator beaconDistributed switchingDiurnal phase shiftDiversity receptionDOD master clockDopingDouble-sideband suppressed-carrier transmissionDouble-slit experimentDriftDrop and insertDropoutDual accessDual impedanceDual in-line packageDual-modulus prescalerDual-tone multi-frequencyDuobinary signalDuplexDuty cycleDXCCDynamic range

E

EarphoneEarpieceEarth's magnetic fieldEDIFEEPROMEffective antenna gain contourEffective boresight areaEffective data transfer rateEffective Earth radiusEffective heightEffective input noise temperatureEffective isotropically radiated powerEffective monopole radiated powerEffective radiated powerEffective transmission rateEfficiency factorE-layerElectric chargeElectric currentElectric fieldElectric motorElectric power transmissionElectric powerElectrical conductionElectrical conductivityElectrical connectorElectrical efficiencyElementElectrical engineeringElectrical generatorImpedanceInsulationElectrical lengthLoadElectrical networkCircuitElectrical resistanceElectrical roomElectrical signalElectricity distributionElectricityElectrochemical cellElectrochemistryElectrodeElectrodynamicsElectrolytic capacitorElectromagnetic environmentElectromagnetic inductionElectromagnetic interference controlElectromagnetic pulseElectromagnetic radiation and healthElectromagnetic radiationElectromagnetic spectrumElectromagnetic survivabilityElectromagnetismElectrometerElectron holeElectronElectronic amplifierElectronic color codeColor codeElectronic data processingElectronic deceptionElectronic design automationElectronic filterElectronic imagerElectronic mixerElectronic musical instrumentElectronic oscillatorElectronic power supplyElectronic switching systemElectronic taggingElectronic test equipmentElectronic warfare support measuresElectronicsElectro-optic effectElectro-optic modulatorElectro-opticsElectrostatic dischargeElectrostaticsEmergency Locator TransmitterEmergency Position-Indicating Radio BeaconEmitter coupled logicEnd distortionEndurabilityEnhanced serviceEntropy encodingEquilibrium lengthEquivalent impedance transformsEquivalent noise resistanceEquivalent pulse code modulation noiseError burstError ratioError-correcting codeE-skipExamples of electrical phenomenaExtremely Low Frequency (ELF) – Eye pattern

F

Fab (semiconductors)Semiconductor device fabricationFacsimile converterFadingFading distributionFail safeFall timeFan-beam antennaFaradFaraday cageFaraday constantFaraday's law of inductionFar-field regionFaultFault managementFCC registration programFederal Standard 1037CFeed hornFeedbackFerroelectric effectFerromagnetismField (physics)FieldField effect transistorField strengthFPGA Field programmable gate arrayFilled cableFilter designFilter (signal processing)Flip-flopFluorescent lampFlutterFluxFlywheel effectFM bandFM improvement factorFM improvement thresholdFM radioForward error correctionFourier seriesFourier transform (see also List of Fourier-related transforms) – Four-wire circuitFour-wire terminating setFractal antennaFrameFrame rateFrame slipFrame synchronizationFraming bitFreenetFree-space lossFreeze frame televisionFrequency assignmentFrequency averagingFrequency counterFrequency deviationFrequency froggingFrequency modulation synthesisFrequency modulationFrequency standardFrequency synthesiserFrequencyFrequency-division multiplexingFrequency-exchange signalingFrequency-hopping spread spectrumFrequency-shift keyingFresnel equationsFresnel reflectionFresnel zoneFront-to-back ratioFuel cellFuse (electrical)

G

Gallium arsenideGalvanic isolationGalvanometerGatewayGatingGaussGeiger–Müller tubeGel electrophoresisGemini Guidance ComputerGender changerGlobal Positioning SystemGlobal system for mobile communicationsGNU RadioGrade of serviceGraded-index fiberGround constantsGround loopGround planeGround (electricity)GroundwaveGuided rayGyrator

H

Halftone characteristicHall effectHamming codeHamming distanceHandoffHandshake (computing)Hard copyHardware registerHarmonic analysisHarmonic oscillatorHarmonicHartley oscillatorH-channelHeat sinkHelical antennaHelmholtz coilHenry (unit)HertzHeterodyne repeaterHeterodyneHigh frequencyHigh-performance equipmentHigh-speed circuit-switched dataHopHornHot-point probeHybrid balanceHybrid circuitHybrid coilHybrid couplerHysteresis

I

IEEE 315-1975IEEE 802.11IEEE 802.15IEEE 802Image antennaImage impedanceImage frequencyImage rejection ratioImage responseImpedance matchingIn-band on-channelIncidental radiatorIndependent sidebandIndex of cooperationInductive couplingInductive reactanceInductorIndustrial ComputersInformation transferInformation-bearer channelInfraredInput/outputInsertion gainInsertion lossInside plantIntegrated circuitIntensity modulationIntentional radiatorInterceptInterchange circuitIntercharacter intervalInterconnect facilityInterferenceInterferometryIntermediate-field regionIntermodulation distortionInternational Electrotechnical CommissionInteroperabilityInterposition trunkIntersymbol interferenceInverse multiplexerInverse-square lawIon pumpIonosphereISM bandIsochronous burst transmissionIsochronous signalIsotropic antenna

J

Jam signalJammingJanskyJitter

K

Karnaugh mapKendall effectKey pulsingKirchhoff's circuit lawsKlystronKnife-edge effect

L

LaserLaunch angleLaunch numerical apertureLead-lag effectLeaky modeLight bulbLight-dependent resistorLight-emitting diodeLightningLimitingLine codeLinear-feedback shift registerLinear regulatorLip synchronizationList of telephony terminologyLists of video game companiesLM741Low-noise amplifierLoading characteristicLoading coilLobeLocal batteryLogic familiesLogic gateLogicLog-periodic antennaLong-haul communicationsLongitudinal redundancy checkLong-tailed pairLong-term stabilityLoopLoop gainLoop-backLow frequencyLow-performance equipmentLumped element model

M

MacroelectronicsMagnetMagnetic-core memoryMagnetic fieldMagnetic flux quantumMagnetic fluxMagnetic levitationMagnetismMagneto-optic effectMagnetosphereMagnetronMain distribution frameMain lobeManchester codeMaserMask workMaster frequency generatorMaximal-ratio combinerMaximum powerMaximum usable frequencyMaxwell coilMaxwell's demonMaxwell's equationsm-derived filterMean time between outagesMediation functionMedium frequency (MF) – Medium-power talkerMedium waveMetalMichelson–Morley experimentMicroelectronicsMicrophoneMicrowave auditory effectMicrowave ovenMicrowaveMIL-STD-188Minimum bend radiusMode scramblerMode volumeModemModular synthesizerModulation factorModulation rateModulationMolecular electronicsMonostableMoore's lawMorse codeMOS Technology 6501MOS Technology 6502MOS Technology SIDMOS Technology VIC-IIMu-law algorithmMulticouplerMulti-element dipole antennaMultimeterMultipath propagationMultiple accessMultiple homingMultiplex basebandMultiplexerMultiplexingMultivibrator

N

N connectorNanotechnologyNanowireNarrative trafficNarrowband modemNarrowbandNational Electrical Code (US)Natural frequencyNear-field regionNegative resistanceNegative-acknowledge characterNet gain (telecommunications)NetlistNetwork administrationNetwork architectureNetwork managementNeural network (machine learning)Neutral direct-current telegraph systemNI MultisimNickel metal hydrideNoise figureNoise (electronics)Noise powerNoise temperatureNoise weightingNoise-cancelling headphoneNoise-equivalent powerNon-return-to-zeroNormalized frequencyNorton's theoremNTSCNuclear electromagnetic pulseNuclear magnetic resonanceNull (radio)Numbers stationNumerical apertureNumerically controlled oscillatorNyquist interval

O

Off-hookOff-lineOhm (unit)OhmmeterOhm's lawOliver HeavisideOmnidirectional antennaOne-way trunkOn-hookOn-lineOpen circuitOpen spectrumOperational amplifierOptical densityOptical fiberOptical path lengthOptical spectrumOptoelectronicOrthogonal frequency division modulationOrthomode transducerOscilloscopeOut-of-band signalingOutside plantOverflowOverhead informationOvermodulationOverrideOvershoot (signal)

P

Packet switchingPacket-switching nodePaired disparity codePALPar meterParabolic antennaParabolic microphoneParallel transmissionParasitic element (electrical networks)Parity bitPassbandPassive radiatorPatch bayPath lossPath profilePauli exclusion principlePBERPCB layout guidelinesPeak envelope powerPeltier effectPerformance measurement periodPeriodic antennaPeriscope antennaPermeabilityPermittivityPersonal Locator BeaconPhantom circuitPhantom loopPhasePhase distortionPhase jitterPhase modulationPhase noisePhase perturbationPhased arrayPhase-locked loopPhase-shift keyingPhilberth-TransformerPhone connector (audio)PhotodiodePhotoelectric effectPhotolithographyPhotonPhysical layerPickupPID controllerPiezoelectricityPin grid arrayPirate radioPlanar arrayPlanck constantPlesiochronous Digital HierarchyPoint-to-point constructionPolarential telegraph systemPolarizationPollingPolyphase systemPortable people meterPotential differencePotential dividerPowerPower connectorPower supplyPreamplifierPreemphasis networkPreemphasisPreferred valuesPreventive maintenancePrimary channelPrimary line constantsPrimary time standardPrincipal clockPrinted circuit boardProcessor registerProduct detectorProgrammable logic devicePropagation delayPropagation modePropagation path obstructionPropagation of schemaProrationPseudorandom noisePseudorandom number sequencePSK31Pulse amplitudePulse durationPulsePulse-address multiple accessPulse-code modulationPulsed inductive thrusterPulse-width modulationPush-to-talk operationPush-to-type operationPyroelectricity

Q

Q codeQRP operationQ-switchingQuadrature amplitude modulationQuadratureQuality assuranceQuality controlQuantum harmonic oscillatorQuartz clockQuasi-analog signalQueuing delay

R

Race hazardRadarRadiation angleRadiation modeRadiation patternRadiation resistanceRadiatorRadio beamRadio clockRadio electronicsRadio frequency inductionRadio frequencyRadio horizon rangeRadio horizonRadio propagationRadio rangeRadio Row, ManhattanRadio stationRadioRadioShackRadiotelephoneRadioteletypeRadix-64RailgunRandom-access memoryRay transfer matrix analysisRC circuitRCRCA jackRCAReactanceReceive-after-transmit time delayReceived noise powerReceiverReceiver attack-time delayReconnaissance satelliteRecord mediumReference antennaReference circuitReference clockReference noiseReference surfaceReflection coefficientReflections of signals on conducting linesReflective array antennaRefractive index contrastRegenerative circuitRegister transfer levelRegistered jackRelational modelRelative transmission levelRelaxation oscillatorRelayRelease timeRemote Operations Service Element protocolRemote sensingRepair and maintenanceRepeaterRepeating coilReproduction speedReradiationResistor color codeResistorResonanceResponse timeResponsivityReturn lossRF connectorRF modulatorRF power marginRF probeRF shieldingRFIDRGB color spaceRhombic antennaRing currentRing latencyRing modulationRingback signalRingdown

RL circuitRLC circuitRobotRogowski coilRoot mean squareRouting indicatorRS-232RXRydberg formula

S

S/PDIFSacrificial anodeSampling frequencyScalar fieldScannerScanning electron microscopeSCARTSchematicSchumann resonanceScramblerSECAMSecond audio programSecond-order intercept pointSecurity managementSelf-clocking signalSelf-synchronizing codeSemiautomatic switching systemSemiconductor deviceSemiconductorSensitivitySensor NetworksSeparate channel signalingSerial accessSerial ATASerial Peripheral Interface BusSerial transmissionSeries and parallel circuitsShadow lossShannon limitShannon's theoremShort circuitShortwaveShot noiseShrinking generatorSide lobeSidebandSidereal timeSiemensSignal (information theory)Signal compressionSignal processing gainSignal processingSignal reflectionSignal transitionSignal-to-crosstalk ratioSignal-to-noise ratioSignature blockSignificant conditionSilicon bandgap temperature sensorSiliconSimplex circuitSimplex signalingSinc filterSingle frequency networksSingle-phase electric powerSingle-frequency signalingSingle-polarized antennaSingle-sideband modulationSkew (antenna)Skin effectSkip zoneSkywaveSlant rangeSlewingSlew rateSlot antennaSlow-scan televisionSoftware-defined radioSolar cellSolderingSolenoidSound cardSpace diversitySpace tetherSpark gapSpecific detectivitySpecificationSpeckle patternSpectral widthSpectrumSpectrum analyzerSpeed of lightSpeed of serviceSPICESpill-forward featureSpilloverSpin glassSpot beamSpread spectrumSpurious emissionSquelchStandard telegraph levelStandard test signalStandard test toneStanding wave ratioStanding waveStarpath SuperchargerStart signalStart-stop transmissionStatic electricitySteady-state conditionStep-index profileStoletov's lawStop signalStopbandStore-and-forward switching centerStressed environmentStrobe lightStroke speedSubcarrierSubtractive synthesisSudden ionospheric disturbanceSupercomputerSuperconductivitySuperheterodyne receiverSuperparamagnetismSuperposition theoremSupervisory programSuppressed carrier transmissionSurface waveSurface-mount technologySurveillance device – SurvivabilityS-VideoSwitchSwitched-mode power supplySynchronismSynchronizationSynchronizingSynchronous networkSynchronous optical networkingSynthesizerSystem integritySystems control

T

Table of standard electrode potentialsTactical communications systemTactical communicationsTactical data information link--ATantalumTape relayT-carrierTechnical control facilityTelecommunicationCommunicationsTelecommunications serviceTeleconferenceTelegrapher's equationsTelegraphyTelemetryTelephone tappingTeletextTeletrainingTelevisionTelevision receptionTEMPESTTensorTesla coilTesla patentsTest antennaTether propulsionThermal noiseThermal tailsThermistorThévenin's theoremThird-order intercept pointTNC connectorThree phaseTime-assignment speech interpolationTime-division multiple accessTime-division multiplexingTime-domain reflectometerTime-outTinfoil hatToll switching trunkTotal harmonic distortionTotal internal reflectionTraffic intensityTraffic shapingTransceiverTranscodingTransducerTransformerTransient electromagnetic deviceTransimpedance amplifierTransistor radioTransistorTransistor-transistor logicTTLTransition metalTransmission coefficientTransmission level pointTransmission lineTransmission mediumMediumTransmit-after-receive time delayTransmitter attack-time delayTransmitterTransmitter-studio linkTransparent latchTransponderTransverse redundancy checkTraveling-wave tubeTRFTriangle waveTrimline telephoneTroposphereTropospheric ductingTropospheric waveTunerTwisted pairTX

U

Ultra high frequencyUltra WidebandUltravioletUnavailabilityUncertainty principleUniform linear arrayUnijunction transistorUnintentional radiatorUplinkUpright position (electronics)User (telecommunications)

V

VACVačkář oscillatorVacuum tubeValence bandVariable length bufferVaricapVaristorVDCVector fieldVeroboardVery high frequencyVery-large-scale integrationVHSIC hardware description languageVideo cassette recorderVideo Game ConsoleVideo GameVideo teleconferenceVideo teleconferencing unitVideoVienna rectifierVintage amateur radioVirtual circuit capabilityVirtual circuitVirtual groundVoice frequency primary patch bayVoice frequencyVolt- Voltage biasVoltage-to-current converterVoltmeterVox

W

Wardenclyffe TowerWarner exemptionWarsaw rectifierWattWave impedanceWave propagationWaveWaveformWaveguide antennaWaveguideWavelength division multiplexingWavelengthWheatstone bridgeWhip antennaWhite facsimile transmissionWideband modemWilliams tubeWink pulsingWire wrapWireWireless access pointWireless community networkWireless networkWireless personal area networkWirelessX-dimension of recorded spotXLR connector

Y

Yagi antennaY-delta transformYUV

Z

Zero dBm transmission level pointZero insertion force (ZIF) – Zero-dispersion wavelengthZigbeeZig-zag in-line packageZobel networkZone meltingZ-transform

See also

Related Research Articles

<span class="mw-page-title-main">Amplitude modulation</span> Radio modulation via wave amplitude

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 of the wave is varied in proportion to that of the message signal, such as an audio signal. This technique contrasts with angle modulation, in which either the frequency of the carrier wave is varied, as in frequency modulation, or its phase, as in phase modulation.

In electronics and telecommunications, modulation is the process of varying one or more properties of a periodic waveform, called the carrier signal, with a separate signal called the modulation signal that typically contains information to be transmitted. For example, the modulation signal might be an audio signal representing sound from a microphone, a video signal representing moving images from a video camera, or a digital signal representing a sequence of binary digits, a bitstream from a computer.

<span class="mw-page-title-main">Electromagnetic compatibility</span> Electrical engineering concept

Electromagnetic compatibility (EMC) is the ability of electrical equipment and systems to function acceptably in their electromagnetic environment, by limiting the unintentional generation, propagation and reception of electromagnetic energy which may cause unwanted effects such as electromagnetic interference (EMI) or even physical damage to operational equipment. The goal of EMC is the correct operation of different equipment in a common electromagnetic environment. It is also the name given to the associated branch of electrical engineering.

<span class="mw-page-title-main">Frequency-shift keying</span> Data communications modulation protocol

Frequency-shift keying (FSK) is a frequency modulation scheme in which digital information is encoded on a carrier signal by periodically shifting the frequency of the carrier between several discrete frequencies. The technology is used for communication systems such as telemetry, weather balloon radiosondes, caller ID, garage door openers, and low frequency radio transmission in the VLF and ELF bands. The simplest FSK is binary FSK, in which the carrier is shifted between two discrete frequencies to transmit binary information.

<span class="mw-page-title-main">Transmitter</span> Electronic device that emits radio waves

In electronics and telecommunications, a radio transmitter or just transmitter is an electronic device which produces radio waves with an antenna with the purpose of signal transmission up to a radio receiver. The transmitter itself generates a radio frequency alternating current, which is applied to the antenna. When excited by this alternating current, the antenna radiates radio waves.

A continuous wave or continuous waveform (CW) is an electromagnetic wave of constant amplitude and frequency, typically a sine wave, that for mathematical analysis is considered to be of infinite duration. It may refer to e.g. a laser or particle accelerator having a continuous output, as opposed to a pulsed output.

<span class="mw-page-title-main">Radio receiver</span> Device for receiving radio broadcasts

In radio communications, a radio receiver, also known as a receiver, a wireless, or simply a radio, is an electronic device that receives radio waves and converts the information carried by them to a usable form. It is used with an antenna. The antenna intercepts radio waves and converts them to tiny alternating currents which are applied to the receiver, and the receiver extracts the desired information. The receiver uses electronic filters to separate the desired radio frequency signal from all the other signals picked up by the antenna, an electronic amplifier to increase the power of the signal for further processing, and finally recovers the desired information through demodulation.

Video modulation is a strategy of transmitting video signal in the field of radio modulation and television technology. This strategy enables the video signal to be transmitted more efficiently through long distances. In general, video modulation means that a higher frequency carrier wave is modified according to the original video signal. In this way, carrier wave contains the information in the video signal. Then, the carrier will "carry" the information in the form of radio frequency (RF) signal. When carrier reaches its destination, the video signal is extracted from the carrier by decoding. In other words, the video signal is first combined with a higher frequency carrier wave so that carrier wave contains the information in video signal. The combined signal is called radio-frequency signal. At the end of this transmitting system, the RF signals stream from a light sensor and hence, the receivers can obtain the initial data in the original video signal.

<span class="mw-page-title-main">Electromagnetic interference</span> Disturbance in an electrical circuit due to external sources of radio waves

Electromagnetic interference (EMI), also called radio-frequency interference (RFI) when in the radio frequency spectrum, is a disturbance generated by an external source that affects an electrical circuit by electromagnetic induction, electrostatic coupling, or conduction. The disturbance may degrade the performance of the circuit or even stop it from functioning. In the case of a data path, these effects can range from an increase in error rate to a total loss of the data. Both human-made and natural sources generate changing electrical currents and voltages that can cause EMI: ignition systems, cellular network of mobile phones, lightning, solar flares, and auroras. EMI frequently affects AM radios. It can also affect mobile phones, FM radios, and televisions, as well as observations for radio astronomy and atmospheric science.

The following outline is provided as an overview of and topical guide to electrical engineering.

A television transmitter is a transmitter that is used for terrestrial (over-the-air) television broadcasting. It is an electronic device that radiates radio waves that carry a video signal representing moving images, along with a synchronized audio channel, which is received by television receivers belonging to a public audience, which display the image on a screen. A television transmitter, together with the broadcast studio which originates the content, is called a television station. Television transmitters must be licensed by governments, and are restricted to a certain frequency channel and power level. They transmit on frequency channels in the VHF and UHF bands. Since radio waves of these frequencies travel by line of sight, they are limited by the horizon to reception distances of 40–60 miles depending on the height of transmitter station.

This is an alphabetical list of articles pertaining specifically to electrical and electronics engineering. For a thematic list, please see List of electrical engineering topics. For a broad overview of engineering, see List of engineering topics. For biographies, see List of engineers.

A radio transmitter or just transmitter is an electronic device which produces radio waves with an antenna. Radio waves are electromagnetic waves with frequencies between about 30 Hz and 300 GHz. The transmitter itself generates a radio frequency alternating current, which is applied to the antenna. When excited by this alternating current, the antenna radiates radio waves. Transmitters are necessary parts of all systems that use radio: radio and television broadcasting, cell phones, wireless networks, radar, two way radios like walkie talkies, radio navigation systems like GPS, remote entry systems, among numerous other uses.

<span class="mw-page-title-main">Education and training of electrical and electronics engineers</span>

Both electrical and electronics engineers typically possess an academic degree with a major in electrical/ electronics engineering. The length of study for such a degree is usually three or four years and the completed degree may be designated as a Bachelor of Engineering, Bachelor of Science or Bachelor of Applied Science depending upon the university.

<span class="mw-page-title-main">Detector (radio)</span> Device which extracts info from a modulated radio frequency current or voltage

In radio, a detector is a device or circuit that extracts information from a modulated radio frequency current or voltage. The term dates from the first three decades of radio (1888–1918). Unlike modern radio stations which transmit sound on an uninterrupted carrier wave, early radio stations transmitted information by radiotelegraphy. The transmitter was switched on and off to produce long or short periods of radio waves, spelling out text messages in Morse code. Therefore, early radio receivers could reproduce the Morse code "dots" and "dashes" by simply distinguishing between the presence or absence of a radio signal. The device that performed this function in the receiver circuit was called a detector. A variety of different detector devices, such as the coherer, electrolytic detector, magnetic detector and the crystal detector, were used during the wireless telegraphy era until superseded by vacuum tube technology.

<span class="mw-page-title-main">Radio-frequency engineering</span> Specialty of electronic engineering

Radio-frequency (RF) engineering is a subset of electrical engineering involving the application of transmission line, waveguide, antenna, radar, and electromagnetic field principles to the design and application of devices that produce or use signals within the radio band, the frequency range of about 20 kHz up to 300 GHz.

<span class="mw-page-title-main">Electronic engineering</span> Electronic engineering involved in the design of electronic circuits, devices, and their systems

Electronic engineering is a sub-discipline of electrical engineering that emerged in the early 20th century and is distinguished by the additional use of active components such as semiconductor devices to amplify and control electric current flow. Previously electrical engineering only used passive devices such as mechanical switches, resistors, inductors, and capacitors.

<span class="mw-page-title-main">Digital signal</span> Signal used to represent data as a sequence of discrete values

A digital signal is a signal that represents data as a sequence of discrete values; at any given time it can only take on, at most, one of a finite number of values. This contrasts with an analog signal, which represents continuous values; at any given time it represents a real number within a continuous range of values.

In signal processing, noise is a general term for unwanted modifications that a signal may suffer during capture, storage, transmission, processing, or conversion.

This glossary of electrical and electronics engineering is a list of definitions of terms and concepts related specifically to electrical engineering and electronics engineering. For terms related to engineering in general, see Glossary of engineering.