85 relations: Air traffic control, Albert Einstein, Alvarion, Amateur radio, Amateur radio satellite, AMSAT, Broadband, Cambridge Broadband, Canberra, Cassegrain reflector, Cassini–Huygens, Civilian, Communications satellite, Compact Linear Collider, Continuous wave, Curiosity (rover), Customer-premises equipment, Directional antenna, DOCSIS, Earth exploration-satellite service, Earth observation satellites transmission frequencies, Electromagnetic spectrum, Electron paramagnetic resonance, ExoMars, Fixed-satellite service, Frequency, Galileo (spacecraft), General relativity, Goldstone Deep Space Communications Complex, Government, Ground station, Hertz, I band (NATO), Image resolution, Imaging radar, Institute of Electrical and Electronics Engineers, International Telecommunication Union, J band (NATO), Jupiter, K band (IEEE), Kuiper belt, Land mobile earth station, Longitude, Madrid, Mars, Metre, Microwave, Military, Mobile-satellite service, Mojave Desert, ..., Motion detector, NASA, NASA Deep Space Network, NATO, New Horizons, NJFA, Ogier the Dane, Particle accelerator, Phased array, Pluto, Polarization (waves), Radar, Radar gun, Radio, Radio frequency, S band, Saturn, Sea-based X-band Radar, Solar System, Space probe, Super high frequency, Synthetic-aperture radar, Telecommunications engineering, TerraSAR-X, Traffic light, Transverter, Vessel traffic service, Viking program, Vikings, Voyager program, Wavelength, Weather radar, Wireless network, XTAR, 3-centimeter band. Expand index (35 more) » « Shrink index
Air traffic control (ATC) is a service provided by ground-based air traffic controllers who direct aircraft on the ground and through controlled airspace, and can provide advisory services to aircraft in non-controlled airspace.
Albert Einstein (14 March 1879 – 18 April 1955) was a German-born theoretical physicist who developed the theory of relativity, one of the two pillars of modern physics (alongside quantum mechanics).
Alvarion Technologies is a global provider of autonomous Wi-Fi networks designed with self-organizing capabilities, and solutions for Carrier Wi-Fi, Enterprise Connectivity, Smart city, Smart Hospitality, Connected Campuses and Connected Events.
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.
An amateur radio satellite is an artificial satellite built and used by amateur radio operators for use in the Amateur-satellite service.
AMSAT is a name for amateur radio satellite organizations worldwide, but in particular the Radio Amateur Satellite Corporation (AMSAT-NA) with headquarters at Kensington, Maryland, near Washington, D.C. AMSAT organizations design, build, arrange launches for, and then operate (command) satellites carrying amateur radio payloads, including the OSCAR series of satellites.
In telecommunications, broadband is wide bandwidth data transmission which transports multiple signals and traffic types.
Cambridge Broadband Networks Limited (CBNL) develops and manufactures point-to-multipoint (PMP) wireless backhaul and access solutions, serving telecommunication customers in over 30 countries.
Canberra is the capital city of Australia.
The Cassegrain reflector is a combination of a primary concave mirror and a secondary convex mirror, often used in optical telescopes and radio antennas.
The Cassini–Huygens mission, commonly called Cassini, was a collaboration between NASA, the European Space Agency (ESA), and the Italian Space Agency (ASI) to send a probe to study the planet Saturn and its system, including its rings and natural satellites.
A civilian is "a person who is not a member of the military or of a police or firefighting force".
A communications satellite is an artificial satellite that relays and amplifies radio telecommunications signals via a transponder; it creates a communication channel between a source transmitter and a receiver at different locations on Earth.
The Compact Linear Collider (CLIC) is a concept for a future linear particle accelerator that aims to explore the next energy frontier.
A continuous wave or continuous waveform (CW) is an electromagnetic wave of constant amplitude and frequency, almost always a sine wave, that for mathematical analysis is considered to be of infinite duration.
Curiosity is a car-sized rover designed to explore Gale Crater on Mars as part of NASA's Mars Science Laboratory mission (MSL).
Customer-premises equipment or customer-provided equipment (CPE) is any terminal and associated equipment located at a subscriber's premises and connected with a carrier's telecommunication circuit at the demarcation point ("demarc").
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.
Data Over Cable Service Interface Specification (DOCSIS) is an international telecommunications standard that permits the addition of high-bandwidth data transfer to an existing cable TV (CATV) system.
Earth exploration-satellite service (also: meteorological-satellite radiocommunication service) is – according to Article 1.51 of the International Telecommunication Union´s (ITU) Radio Regulations (RR) – defined as «A radiocommunication service between earth stations and one or more space stations, which may include links between space stations, in which.
The earth is constantly being monitored by a great number satellites operating in the earth exploration-satellite service (EESS) or space research service (SRS).
The electromagnetic spectrum is the range of frequencies (the spectrum) of electromagnetic radiation and their respective wavelengths and photon energies.
Electron paramagnetic resonance (EPR) or electron spin resonance (ESR) spectroscopy is a method for studying materials with unpaired electrons.
ExoMars (Exobiology on Mars) is a two-part astrobiology project to search for evidence of life on Mars, a joint mission of the European Space Agency (ESA) and the Russian space agency Roscosmos.
Fixed-satellite service (short: FSS | also: fixed-satellite radiocommunication service) is – according to article 1.21 of the International Telecommunication Union´s (ITU) Radio Regulations (RR) – defined as A radiocommunication service between earth stations at given positions, when one or more satellites are used; the given position may be a specified fixed point or any fixed point within specified areas; in some cases this service includes satellite-to-satellite links, which may also be operated in the inter-satellite service; the fixed-satellite service may also include feeder links for other space radiocommunication services.
Frequency is the number of occurrences of a repeating event per unit of time.
Galileo was an American unmanned spacecraft that studied the planet Jupiter and its moons, as well as several other Solar System bodies.
General relativity (GR, also known as the general theory of relativity or GTR) is the geometric theory of gravitation published by Albert Einstein in 1915 and the current description of gravitation in modern physics.
The Goldstone Deep Space Communications Complex (GDSCC), commonly called the Goldstone Observatory, is located in the Mojave Desert near Barstow in the U.S. state of California.
A government is the system or group of people governing an organized community, often a state.
A ground station, earth station, or earth terminal is a terrestrial radio station designed for extraplanetary telecommunication with spacecraft (constituting part of the ground segment of the spacecraft system), or reception of radio waves from astronomical radio sources.
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 NATO I band is the obsolete designation given to the radio frequencies from 8 000 to 10 000 MHz (equivalent to wavelengths between 3.75 and 3 cm) during the Cold War period.
Image resolution is the detail an image holds.
Imaging radar is an application of radar which is used to create two-dimensional images, typically of landscapes.
The Institute of Electrical and Electronics Engineers (IEEE) is a professional association with its corporate office in New York City and its operations center in Piscataway, New Jersey.
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 NATO J band is the obsolete designation given to the radio frequencies from 10 to 20 GHz (equivalent to wavelengths between 3 and 1.5 cm) during the cold war period.
Jupiter is the fifth planet from the Sun and the largest in the Solar System.
The IEEE K band is a portion of the radio spectrum in the microwave range of frequencies from 18 to 27 gigahertz (GHz).
The Kuiper belt, occasionally called the Edgeworth–Kuiper belt, is a circumstellar disc in the outer Solar System, extending from the orbit of Neptune (at 30 AU) to approximately 50 AU from the Sun.
Land mobile earth station (also: land mobile earth radio station) is – according to Article 1.74 of the International Telecommunication Union´s (ITU) ITU Radio Regulations (RR) – defined as «A mobile earth station in the land mobile-satellite service capable of surface movement within the geographical limits of a country or continent.»;See also.
Longitude, is a geographic coordinate that specifies the east-west position of a point on the Earth's surface.
Madrid is the capital of Spain and the largest municipality in both the Community of Madrid and Spain as a whole.
Mars is the fourth planet from the Sun and the second-smallest planet in the Solar System after Mercury.
The metre (British spelling and BIPM spelling) or meter (American spelling) (from the French unit mètre, from the Greek noun μέτρον, "measure") is the base unit of length in some metric systems, including the International System of Units (SI).
Microwaves are a form of electromagnetic radiation with wavelengths ranging from one meter to one millimeter; with frequencies between and.
A military or armed force is a professional organization formally authorized by a sovereign state to use lethal or deadly force and weapons to support the interests of the state.
Mobile-satellite service (MSS, or mobile-satellite radiocommunication service) is – according to Article 1.25 of the International Telecommunication Union's Radio Regulations – "A radiocommunication service.
The Mojave Desert is an arid rain-shadow desert and the driest desert in North America.
A motion detector is a device that detects moving objects, particularly people.
The National Aeronautics and Space Administration (NASA) is an independent agency of the executive branch of the United States federal government responsible for the civilian space program, as well as aeronautics and aerospace research.
The NASA Deep Space Network (DSN) is a worldwide network of US spacecraft communication facilities, located in the United States (California), Spain (Madrid), and Australia (Canberra), that supports NASA's interplanetary spacecraft missions.
The North Atlantic Treaty Organization (NATO; Organisation du Traité de l'Atlantique Nord; OTAN), also called the North Atlantic Alliance, is an intergovernmental military alliance between 29 North American and European countries.
New Horizons is an interplanetary space probe that was launched as a part of NASA's New Frontiers program.
NJFA stands for NATO Joint Civil/Military Frequency Agreement and is the universal NATO common civil/military treaty to regulate the military access to the radio frequency spectrum in the range of 14 kHz to 100 GHz in peacetime, during exercises, in times of crisis, and in military operations.
Ogier the Dane (Ogier le Danois, Ogier de Danemarche, Holger Danske) is a legendary knight of Charlemagne who appears in many Old French chansons de geste, in particular, as the chief protagonist in La chevalerie Ogier (ca. 1220) which belongs to the Geste de Doon de Mayence ("cycle of the rebellious vassals").
A particle accelerator is a machine that uses electromagnetic fields to propel charged particles to nearly light speed and to contain them in well-defined beams.
In antenna theory, a phased array usually means an electronically scanned array; a computer-controlled array of antennas which creates a beam of radio waves which can be electronically steered to point in different directions, without moving the antennas.
Pluto (minor planet designation: 134340 Pluto) is a dwarf planet in the Kuiper belt, a ring of bodies beyond Neptune.
Polarization (also polarisation) is a property applying to transverse waves that specifies the geometrical orientation of the oscillations.
Radar is an object-detection system that uses radio waves to determine the range, angle, or velocity of objects.
A radar speed gun (also radar gun and speed gun) is a device used to measure the speed of moving objects.
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 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.
The S band is a designation by the Institute of Electrical and Electronics Engineers (IEEE) for a part of the microwave band of the electromagnetic spectrum covering frequencies from 2 to 4 gigahertz (GHz).
Saturn is the sixth planet from the Sun and the second-largest in the Solar System, after Jupiter.
The Sea-Based X-Band Radar (SBX-1) is a floating, self-propelled, mobile active electronically scanned array early-warning radar station designed to operate in high winds and heavy seas.
The Solar SystemCapitalization of the name varies.
A space probe is a robotic spacecraft that does not orbit the Earth, but, instead, explores further into outer space.
Super high frequency (SHF) is the ITU designation for radio frequencies (RF) in the range between 3 and 30 gigahertz (GHz).
Synthetic-aperture radar (SAR) is a form of radar that is used to create two- or three-dimensional images of objects, such as landscapes.
Telecommunications engineering is an engineering discipline centered on electrical and computer engineering which seeks to support and enhance telecommunication systems.
TerraSAR-X, an imaging radar Earth observation satellite, is a joint venture being carried out under a public-private-partnership between the German Aerospace Center (DLR) and EADS Astrium.
Traffic lights, also known as traffic signals, traffic lamps, traffic semaphore, signal lights, stop lights, robots (in South Africa and most of Africa), and traffic control signals (in technical parlance), are signalling devices positioned at road intersections, pedestrian crossings, and other locations to control flows of traffic.
;In radio engineering: a transverter is a radio frequency device that consists of an upconverter and a downconverter in one unit.
A vessel traffic service (VTS) is a marine traffic monitoring system established by harbour or port authorities, similar to air traffic control for aircraft.
The Viking program consisted of a pair of American space probes sent to Mars, Viking 1 and Viking 2.
Vikings (Old English: wicing—"pirate", Danish and vikinger; Swedish and vikingar; víkingar, from Old Norse) were Norse seafarers, mainly speaking the Old Norse language, who raided and traded from their Northern European homelands across wide areas of northern, central, eastern and western Europe, during the late 8th to late 11th centuries.
The Voyager program is an American scientific program that employs two robotic probes, Voyager 1 and Voyager 2, to study the outer Solar System.
In physics, the wavelength is the spatial period of a periodic wave—the distance over which the wave's shape repeats.
Weather radar, also called weather surveillance radar (WSR) and Doppler weather radar, is a type of radar used to locate precipitation, calculate its motion, and estimate its type (rain, snow, hail etc.). Modern weather radars are mostly pulse-Doppler radars, capable of detecting the motion of rain droplets in addition to the intensity of the precipitation.
A wireless network is a computer network that uses wireless data connections between network nodes.
XTAR, LLC is a commercial satellite operator exclusively providing services in the X band frequency range, which is the communications cornerstone of today's military, diplomatic, humanitarian and emergency disaster response operations.
The 3 centimeter or 10 GHz band is a portion of the SHF (microwave) radio spectrum internationally allocated to amateur radio and amateur satellite use on a secondary basis.