109 relations: AM broadcasting, Ampere, Amplifier, Amplitude modulation, Analog-to-digital converter, Anechoic chamber, Antenna diversity, Atacama Large Millimeter Array, Aurora, Baby monitor, Bluetooth, Braid-breaker, Broadband, Broadcasting, Bug zapper, Capacitive coupling, Capacitor, Cathode ray tube, Cellular network, Choke (electronics), CISPR, Citizens band radio, Common-mode interference, Cordless telephone, Coupling (electronics), Decoupling capacitor, Defense Electronics (magazine), Degaussing, Differential signaling, Digital audio broadcasting, Digital Video Broadcasting, Directivity, Electric blanket, Electric power transmission, Electrical resistance and conductance, Electromagnetic compatibility, Electromagnetic field, Electromagnetic induction, Electromagnetic radiation, Electromechanics, Electronic warfare, Emission (radiocommunications), Error detection and correction, Faraday cage, Federal Communications Commission, FM broadcasting, Frequency administration, Frequency assignment, Frequency-hopping spread spectrum, Fundamental frequency, ..., Ground plane, GSM, Harmonic, Heating pad, Hertz, Hydrogen line, IC power-supply pin, IEEE 802.11b-1999, IEEE 802.11g-2003, Ignition system, Inductance, Integrated circuit, Interference (communication), International Electrotechnical Commission, International Telecommunication Union, ITU Radio Regulations, Lightning, List of 2.4 GHz radio use, LOFAR, Loudspeaker, Maxim Integrated, Microphone, Microwave oven, Mobile phone, Narrowband, Noise (electronics), Parabolic antenna, Power factor, Power integrity, Printed circuit board, Radio, Radio astronomy, Radio frequency, Radio jamming, Radio quiet zone, Radio receiver, Radio station, Radiocommunication service, Red Queen's race, Rise time, Selectivity (electronic), Signal integrity, Snubber, Solar flare, Spectrum management, Spread spectrum, Switch, Switched-mode power supply, Television, Toaster, Transient (oscillation), Transmitter, Twisted pair, Ultra-wideband, United States, United States National Radio Quiet Zone, Very Large Array, Video sender, Wi-Fi. Expand index (59 more) » « Shrink index
AM broadcasting is a radio broadcasting technology, which employs amplitude modulation (AM) transmissions.
The ampere (symbol: A), often shortened to "amp",SI supports only the use of symbols and deprecates the use of abbreviations for units.
An amplifier, electronic amplifier or (informally) amp is an electronic device that can increase the power of a signal (a time-varying voltage or current).
Amplitude modulation (AM) is a modulation technique used in electronic communication, most commonly for transmitting information via a radio carrier wave.
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 anechoic chamber (an-echoic meaning "non-reflective, non-echoing, echo-free") is a room designed to completely absorb reflections of either sound or electromagnetic waves.
Antenna diversity, also known as space diversity or spatial diversity, is any one of several wireless diversity schemes that uses two or more antennas to improve the quality and reliability of a wireless link.
The Atacama Large Millimeter/submillimeter Array (ALMA) is an astronomical interferometer of radio telescopes in the Atacama Desert of northern Chile.
An aurora (plural: auroras or aurorae), sometimes referred to as polar lights, northern lights (aurora borealis) or southern lights (aurora australis), is a natural light display in the Earth's sky, predominantly seen in the high-latitude regions (around the Arctic and Antarctic).
A baby monitor, also known as a baby alarm, is a radio system used to remotely listen to sounds made by an infant.
Bluetooth is a wireless technology standard for exchanging data over short distances (using short-wavelength UHF radio waves in the ISM band from 2.4 to 2.485GHz) from fixed and mobile devices, and building personal area networks (PANs).
A braid-breaker is a filter that prevents television interference (TVI).
In telecommunications, broadband is wide bandwidth data transmission which transports multiple signals and traffic types.
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.
A bug zapper, more formally called an electrical discharge insect control system, electric insect killer or (insect) electrocutor trap, is a device that attracts and kills flying insects that are attracted by light.
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.
A capacitor is a passive two-terminal electrical component that stores potential energy in an electric field.
The cathode ray tube (CRT) is a vacuum tube that contains one or more electron guns and a phosphorescent screen, and is used to display images.
A cellular network or mobile network is a communication network where the last link is wireless.
In electronics, a choke is an inductor used to block higher-frequency alternating current (AC) in an electrical circuit, while passing lower-frequency or direct current (DC).
The Comité International Spécial des Perturbations Radioélectriques (CISPR; International Special Committee on Radio Interference) was founded in 1934 to set standards for controlling electromagnetic interference in electrical and electronic devices, and is a part of the International Electrotechnical Commission (IEC).
Citizens band radio (also known as CB radio) is, in many countries, a system of short-distance radio communications between individuals typically on a selection of 40 channels within the 27 MHz (11 m) band.
In telecommunication, the term common-mode interference has the following meanings.
A cordless telephone or portable telephone is a telephone in which the handset is portable and communicates with the body of the phone by radio, instead of being attached by a cord.
In electronics and telecommunication, coupling is the desirable or undesirable transfer of energy from one medium, such as a metallic wire or an optical fiber, to another medium.
A decoupling capacitor is a capacitor used to decouple one part of an electrical network (circuit) from another.
Defense Electronics (formerly RF Design) is a Penton Media trade magazine that covers radio frequency design.
Degaussing is the process of decreasing or eliminating a remnant magnetic field.
Differential signaling is a method for electrically transmitting information using two complementary signals.
Digital audio broadcasting (DAB) is a digital radio standard for broadcasting digital audio radio services, used in many countries across Europe, Asia, and the Pacific.
Digital Video Broadcasting (DVB) is a set of internationally open standards for digital television.
In electromagnetics, directivity is a parameter of an antenna or optical system which measures the degree to which the radiation emitted is concentrated in a single direction.
An electric blanket is a blanket containing integrated electrical heating wires.
Electric power transmission is the bulk movement of electrical energy from a generating site, such as a power plant, to an electrical substation.
The electrical resistance of an electrical conductor is a measure of the difficulty to pass an electric current through that conductor.
Electromagnetic compatibility (EMC) is the branch of electrical engineering concerned with the unintentional generation, propagation and reception of electromagnetic energy which may cause unwanted effects such as electromagnetic interference (EMI) or even physical damage in operational equipment.
An electromagnetic field (also EMF or EM field) is a physical field produced by electrically charged objects.
Electromagnetic or magnetic induction is the production of an electromotive force (i.e., voltage) across an electrical conductor in a changing magnetic field.
In physics, electromagnetic radiation (EM radiation or EMR) refers to the waves (or their quanta, photons) of the electromagnetic field, propagating (radiating) through space-time, carrying electromagnetic radiant energy.
In engineering, electromechanics combines processes and procedures drawn from electrical engineering and mechanical engineering.
Electronic warfare (EW) is any action involving the use of the electromagnetic spectrum or directed energy to control the spectrum, attack of an enemy, or impede enemy assaults via the spectrum.
Emission is the radiation or radio signal produced or emitted by a radio transmitting station.
In information theory and coding theory with applications in computer science and telecommunication, error detection and correction or error control are techniques that enable reliable delivery of digital data over unreliable communication channels.
A Faraday cage or Faraday shield is an enclosure used to block electromagnetic fields.
The Federal Communications Commission (FCC) is an independent agency of the United States government created by statute (and) to regulate interstate communications by radio, television, wire, satellite, and cable.
FM broadcasting is a method of radio broadcasting using frequency modulation (FM) technology.
In telecommunication, frequency assignment authority is the power granted for the administration, designation or delegation to an agency or administrator via treaty or law, to specify frequencies, frequency channels or frequency bands, in the electromagnetic spectrum for use in radiocommunication services, radio stations or ISM applications.
Frequency assignment is the authorization of use of a particular radio frequency.
Frequency-hopping spread spectrum (FHSS) is a method of transmitting radio signals by rapidly switching a carrier among many frequency channels, using a pseudorandom sequence known to both transmitter and receiver.
The fundamental frequency, often referred to simply as the fundamental, is defined as the lowest frequency of a periodic waveform.
In electrical engineering, a ground plane is an electrically conductive surface, usually connected to electrical ground.
GSM (Global System for Mobile communications) is a standard developed by the European Telecommunications Standards Institute (ETSI) to describe the protocols for second-generation digital cellular networks used by mobile devices such as tablets, first deployed in Finland in December 1991.
A harmonic is any member of the harmonic series, a divergent infinite series.
A heating pad is a pad used for warming of parts of the body in order to manage pain.
The hertz (symbol: Hz) is the derived unit of frequency in the International System of Units (SI) and is defined as one cycle per second.
The hydrogen line, 21-centimeter line or H I line refers to the electromagnetic radiation spectral line that is created by a change in the energy state of neutral hydrogen atoms.
Almost all integrated circuits (ICs) have at least two pins that connect to the power rails of the circuit in which they are installed.
IEEE 802.11b-1999 or 802.11b, is an amendment to the IEEE 802.11 wireless networking specification that extends throughput up to 11 Mbit/s using the same 2.4GHz band.
IEEE 802.11g-2003 or 802.11g is an amendment to the IEEE 802.11 specification that extended throughput to up to 54 Mbit/s using the same 2.4 GHz band as 802.11b.
An ignition system generates a spark or heats an electrode to a high temperature to ignite a fuel-air mixture in spark ignition internal combustion engines oil-fired and gas-fired boilers, rocket engines, etc.
In electromagnetism and electronics, inductance is the property of an electrical conductor by which a change in electric current through it induces an electromotive force (voltage) in the conductor.
An integrated circuit or monolithic integrated circuit (also referred to as an IC, a chip, or a microchip) is a set of electronic circuits on one small flat piece (or "chip") of semiconductor material, normally silicon.
In communications and electronics, especially in telecommunications, interference is anything which modifies, or disrupts a signal as it travels along a channel between a source and a receiver.
The International Electrotechnical Commission (IEC; in French: Commission électrotechnique internationale) is an international standards organization that prepares and publishes International Standards for all electrical, electronic and related technologies – collectively known as "electrotechnology".
The International Telecommunication Union (ITU; Union Internationale des Télécommunications (UIT)), originally the International Telegraph Union (Union Télégraphique Internationale), is a specialized agency of the United Nations (UN) that is responsible for issues that concern information and communication technologies.
The ITU Radio Regulations (short: RR) regulates on law of nations scale radiocommunication services and the utilisation of radio frequencies.
Lightning is a sudden electrostatic discharge that occurs typically during a thunderstorm.
There are several uses of the 2.4 GHz band.
The Low-Frequency Array or LOFAR, is a large radio telescope network located mainly in the Netherlands, completed in 2012 by ASTRON, the Netherlands Institute for Radio Astronomy and its international partners, and operated by ASTRON's radio observatory, of the Netherlands Organisation for Scientific Research.
A loudspeaker (or loud-speaker or speaker) is an electroacoustic transducer; which converts an electrical audio signal into a corresponding sound.
Maxim Integrated is an American, publicly traded company that designs, manufactures, and sells analog and mixed-signal integrated circuits.
A microphone, colloquially nicknamed mic or mike, is a transducer that converts sound into an electrical signal.
A microwave oven (also commonly referred to as a microwave) is an electric oven that heats and cooks food by exposing it to electromagnetic radiation in the microwave frequency range.
A mobile phone, known as a cell phone in North America, is a portable telephone that can make and receive calls over a radio frequency link while the user is moving within a telephone service area.
In radio, narrowband describes a channel in which the bandwidth of the message does not significantly exceed the channel's coherence bandwidth.
In electronics, noise is an unwanted disturbance in an electrical signal.
A parabolic antenna is an antenna that uses a parabolic reflector, a curved surface with the cross-sectional shape of a parabola, to direct the radio waves.
In electrical engineering, the power factor of an AC electrical power system is defined as the ratio of the real power flowing to the load to the apparent power in the circuit, and is a dimensionless number in the closed interval of −1 to 1.
Power integrity or PI is an analysis to check whether the desired voltage and current are met from source to destination.
A printed circuit board (PCB) mechanically supports and electrically connects electronic components or electrical components using conductive tracks, pads and other features etched from one or more sheet layers of copper laminated onto and/or between sheet layers of a non-conductive substrate.
Radio is the technology of using radio waves to carry information, such as sound, by systematically modulating properties of electromagnetic energy waves transmitted through space, such as their amplitude, frequency, phase, or pulse width.
Radio astronomy is a subfield of astronomy that studies celestial objects at radio frequencies.
Radio frequency (RF) refers to oscillatory change in voltage or current in a circuit, waveguide or transmission line in the range extending from around twenty thousand times per second to around three hundred billion times per second, roughly between the upper limit of audio and the lower limit of infrared.
Radio jamming is the deliberate jamming, blocking or interference with authorized wireless communications.
A radio quiet zone is an area where radio transmissions are restricted in order to protect a radio telescope or a communications station from radio frequency interference.
In radio communications, a radio receiver (receiver or simply radio) is an electronic device that receives radio waves and converts the information carried by them to a usable form.
A radio station is a set of equipment necessary to carry on communication via radio waves.
Radiocommunication service is according to Article 1.19 of the International Telecommunication Union´s (ITU)RR, defined as “a service…involving the transmission, emission and/or reception of radio waves for specific telecommunication purposes”.
The Red Queen's race is an incident that appears in Lewis Carroll's Through the Looking-Glass and involves the Red Queen, a representation of a Queen in chess, and Alice constantly running but remaining in the same spot.
In electronics, when describing a voltage or current step function, rise time is the time taken by a signal to change from a specified low value to a specified high value.
Selectivity is a measure of the performance of a radio receiver to respond only to the radio signal it is tuned to (such as a radio station) and reject other signals nearby in frequency, such as another broadcast on an adjacent channel.
Signal integrity or SI is a set of measures of the quality of an electrical signal.
A snubber is a device used to suppress ("snub") a phenomenon such as voltage transients in electrical systems, pressure transients in fluid systems (caused by for example water hammer) or excess force or rapid movement in mechanical systems.
A solar flare is a sudden flash of increased Sun's brightness, usually observed near its surface.
Spectrum management is the process of regulating the use of radio frequencies to promote efficient use and gain a net social benefit.
In telecommunication and radio communication, spread-spectrum techniques are methods by which a signal (e.g., an electrical, electromagnetic, or acoustic signal) generated with a particular bandwidth is deliberately spread in the frequency domain, resulting in a signal with a wider bandwidth.
In electrical engineering, a switch is an electrical component that can "make" or "break" an electrical circuit, interrupting the current or diverting it from one conductor to another.
A switched-mode power supply (switching-mode power supply, switch-mode power supply, switched power supply, SMPS, or switcher) is an electronic power supply that incorporates a switching regulator to convert electrical power efficiently.
Television (TV) is a telecommunication medium used for transmitting moving images in monochrome (black and white), or in colour, and in two or three dimensions and sound.
A toaster, or a toast maker, is an electric small appliance designed to toast sliced bread by exposing it to radiant heat, thus converting it into toast.
A transient event is a short-lived burst of energy in a system caused by a sudden change of state.
In electronics and telecommunications, a transmitter or radio transmitter is an electronic device which produces radio waves with an antenna.
Twisted pair cabling is a type of wiring in which two conductors of a single circuit are twisted together for the purposes of improving electromagnetic compatibility.
Ultra-wideband (also known as UWB, ultra-wide band and ultraband) is a radio technology that can use a very low energy level for short-range, high-bandwidth communications over a large portion of the radio spectrum.
The United States of America (USA), commonly known as the United States (U.S.) or America, is a federal republic composed of 50 states, a federal district, five major self-governing territories, and various possessions.
The National Radio Quiet Zone (NRQZ) is a large area of land in the United States designated as a radio quiet zone, in which radio transmissions are heavily restricted by law to facilitate scientific research and military intelligence.
The Karl G. Jansky Very Large Array (VLA) is a centimeter-wavelength radio astronomy observatory located in central New Mexico on the Plains of San Agustin, between the towns of Magdalena and Datil, ~50 miles (80 km) west of Socorro.
A video sender (also known as a DigiSender, wireless video sender, AV sender or audio-video sender) is a device for transmitting domestic audio and video signals wirelessly from one location to another.
Wi-Fi or WiFi is technology for radio wireless local area networking of devices based on the IEEE 802.11 standards.
Conducted Electromagnetic Interference, Conducted electromagnetic interference, Dirty power, Distortion (electronic circuits), EM interference, Electrical interference, Electro-magnetic interference, Electromagnetic Interference, Electromagnetic influence, Electromagnetic noise, Harmful interference, Intentional EMI, RF interference, Radio Frecuency Interference, Radio Frequency Interference, Radio frequency interference, Radio interference, Radio-frequency interference, Radiofrequency interference.