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58 relations: Alternating current, Amateur radio, Amateur radio emergency communications, Amateur radio operator, Amateur radio repeater, Amplifier, Antenna (radio), Antenna rotator, Automotive battery, Call sign, Central London, Computer, Contesting, Country, Direct current, Directional antenna, Doppler effect, DX-pedition, Electric battery, Electric generator, Embedded system, England, Ethernet, Firmware, Flag, Frequency modulation, International Space Station, Laptop, Maritime mobile amateur radio, Microphone, Morse code, North America, Omnidirectional antenna, Power supply, PSK31, QRP operation, Radio, Radio shack, Radio station, Radioteletype, Repeater, Satellite, Slang, Sound card, Space Shuttle, Standing wave ratio, Telegraph key, Telephony, Transceiver, Transmitter power output, ..., Transponder, Transverter, Ultra high frequency, United States, USB, User interface, Vehicle, Very high frequency. Expand index (8 more) »
Alternating current
Alternating current (AC) is an electric current which periodically reverses direction, in contrast to direct current (DC) which flows only in one direction.
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Amateur radio
Amateur radio, also known as ham radio, describes the use of radio frequency spectrum for purposes of non-commercial exchange of messages, wireless experimentation, self-training, private recreation, radiosport, contesting, and emergency communication.
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Amateur radio emergency communications
In times of crisis and natural disasters, amateur radio is often used as a means of emergency communication when wireline, cell phones and other conventional means of communications fail.
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Amateur radio operator
An amateur radio operator is someone who uses equipment at an amateur radio station to engage in two-way personal communications with other amateur operators on radio frequencies assigned to the amateur radio service.
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Amateur radio repeater
An amateur radio repeater is an electronic device that receives a weak or low-level amateur radio signal and retransmits it at a higher level or higher power, so that the signal can cover longer distances without degradation.
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Amplifier
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).
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Antenna (radio)
In radio, an antenna is the interface between radio waves propagating through space and electric currents moving in metal conductors, used with a transmitter or receiver.
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Antenna rotator
An antenna rotator is a device used to change the orientation, within the horizontal plane, of a directional antenna.
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Automotive battery
An automotive battery is a rechargeable battery that supplies electrical current to a motor vehicle.
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Call sign
In broadcasting and radio communications, a call sign (also known as a call name or call letters—and historically as a call signal—or abbreviated as a call) is a unique designation for a transmitter station.
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Central London
Central London is the innermost part of London, in the United Kingdom, spanning several boroughs.
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Computer
A computer is a device that can be instructed to carry out sequences of arithmetic or logical operations automatically via computer programming.
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Contesting
Contesting (also known as radiosport) is a competitive activity pursued by amateur radio operators.
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Country
A country is a region that is identified as a distinct national entity in political geography.
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Direct current
Direct current (DC) is the unidirectional flow of electric charge.
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Directional antenna
A directional antenna or beam antenna is an antenna which radiates or receives greater power in specific directions allowing increased performance and reduced interference from unwanted sources.
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Doppler effect
The Doppler effect (or the Doppler shift) is the change in frequency or wavelength of a wave in relation to observer who is moving relative to the wave source.
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DX-pedition
A DX-pedition is an expedition to what is considered an exotic place by amateur radio operators, perhaps because of its remoteness, access restrictions or simply because there are very few radio amateurs active from that place.
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Electric battery
An electric battery is a device consisting of one or more electrochemical cells with external connections provided to power electrical devices such as flashlights, smartphones, and electric cars.
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Electric generator
In electricity generation, a generator is a device that converts motive power (mechanical energy) into electrical power for use in an external circuit.
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Embedded system
An embedded system is a computer system with a dedicated function within a larger mechanical or electrical system, often with real-time computing constraints.
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England
England is a country that is part of the United Kingdom.
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Ethernet
Ethernet is a family of computer networking technologies commonly used in local area networks (LAN), metropolitan area networks (MAN) and wide area networks (WAN).
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Firmware
In electronic systems and computing, firmware is a specific class of computer software that provides the low-level control for the device's specific hardware.
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Flag
A flag is a piece of fabric (most often rectangular or quadrilateral) with a distinctive design and colors.
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Frequency modulation
In telecommunications and signal processing, frequency modulation (FM) is the encoding of information in a carrier wave by varying the instantaneous frequency of the wave.
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International Space Station
The International Space Station (ISS) is a space station, or a habitable artificial satellite, in low Earth orbit.
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Laptop
A laptop, also called a notebook computer or just notebook, is a small, portable personal computer with a "clamshell" form factor, having, typically, a thin LCD or LED computer screen mounted on the inside of the upper lid of the "clamshell" and an alphanumeric keyboard on the inside of the lower lid.
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Maritime mobile amateur radio
Most countries' amateur radio licences allow licensed operators to install and use radio transmission equipment while at sea.
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Microphone
A microphone, colloquially nicknamed mic or mike, is a transducer that converts sound into an electrical signal.
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Morse code
Morse code is a method of transmitting text information as a series of on-off tones, lights, or clicks that can be directly understood by a skilled listener or observer without special equipment.
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North America
North America is a continent entirely within the Northern Hemisphere and almost all within the Western Hemisphere; it is also considered by some to be a northern subcontinent of the Americas.
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Omnidirectional antenna
In radio communication, an omnidirectional antenna is a class of antenna which have an axis about which radio wave power is radiated symmetrically, and, upon that axis, is zero.
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Power supply
A power supply is an electrical device that supplies electric power to an electrical load.
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PSK31
PSK31 or "Phase Shift Keying, 31 Baud", also BPSK31 and QPSK31, is a popular computer-sound card-generated radioteletype mode, used primarily by amateur radio operators to conduct real-time keyboard-to-keyboard chat, most often using frequencies in the high frequency amateur radio bands (near-shortwave).
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QRP operation
In amateur radio, QRP operation refers to transmitting at reduced power while attempting to maximize one's effective range.
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Radio
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.
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Radio shack
A radio shack is a room or structure used for housing radio equipment.
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Radio station
A radio station is a set of equipment necessary to carry on communication via radio waves.
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Radioteletype
Radioteletype (RTTY) is a telecommunications system consisting originally of two or more electromechanical teleprinters in different locations connected by radio rather than a wired link.
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Repeater
In telecommunications, a repeater is an electronic device that receives a signal and retransmits it.
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Satellite
In the context of spaceflight, a satellite is an artificial object which has been intentionally placed into orbit.
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Slang
Slang is language (words, phrases, and usages) of an informal register that members of special groups like teenagers, musicians, or criminals favor (over a standard language) in order to establish group identity, exclude outsiders, or both.
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Sound card
A sound card (also known as an audio card) is an internal expansion card that provides input and output of audio signals to and from a computer under control of computer programs.
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Space Shuttle
The Space Shuttle was a partially reusable low Earth orbital spacecraft system operated by the U.S. National Aeronautics and Space Administration (NASA), as part of the Space Shuttle program.
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Standing wave ratio
In radio engineering and telecommunications, standing wave ratio (SWR) is a measure of impedance matching of loads to the characteristic impedance of a transmission line or waveguide.
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Telegraph key
A telegraph key is a switching device used primarily to send Morse code.
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Telephony
Telephony is the field of technology involving the development, application, and deployment of telecommunication services for the purpose of electronic transmission of voice, fax, or data, between distant parties.
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Transceiver
A transceiver is a device comprising both a transmitter and a receiver that are combined and share common circuitry or a single housing.
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Transmitter power output
In radio transmission, transmitter power output (TPO) is the actual amount of power (in watts) of radio frequency (RF) energy that a transmitter produces at its output.
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Transponder
In telecommunication, a transponder can be one of two types of devices.
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Transverter
;In radio engineering: a transverter is a radio frequency device that consists of an upconverter and a downconverter in one unit.
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Ultra high frequency
Ultra high frequency (UHF) is the ITU designation for radio frequencies in the range between 300 megahertz (MHz) and 3 gigahertz (GHz), also known as the decimetre band as the wavelengths range from one meter to one decimeter.
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United States
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.
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USB
USB (abbreviation of Universal Serial Bus), is an industry standard that was developed to define cables, connectors and protocols for connection, communication, and power supply between personal computers and their peripheral devices.
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User interface
The user interface (UI), in the industrial design field of human–computer interaction, is the space where interactions between humans and machines occur.
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Vehicle
A vehicle (from vehiculum) is a machine that transports people or cargo.
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Very high frequency
Very high frequency (VHF) is the ITU designation for the range of radio frequency electromagnetic waves (radio waves) from 30 to 300 megahertz (MHz), with corresponding wavelengths of ten to one meter.
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Redirects here:
Amateur radio mobile operation, Space station (radio).
References
[1] https://en.wikipedia.org/wiki/Amateur_radio_station
