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94 relations: Amateur radio, Amateur radio repeater, American Radio Relay League, American Red Cross, Amplitude modulation, AMSAT, Apache HTTP Server, Apache Tomcat, Association of Public-Safety Communications Officials-International, Atlanta, Automatic Packet Reporting System, Bandwidth (signal processing), BIND, Certified first responder, Cliff effect, Command-line interface, Contact (amateur radio), Continuous wave, CQ Amateur Radio, Cron, Cross-platform, CubeSat, Digital mobile radio, Digital private mobile radio, Doppler effect, EchoLink, Email, Ethernet, Ethernet over twisted pair, European Space Agency, File transfer, Frequency modulation, Fully qualified domain name, Gateway (telecommunications), GNU C Library, Great Coastal Gale of 2007, GTK+, Haute École de la Province de Liège, Haymarket, Virginia, High frequency, Icom Incorporated, Incident Command System, International Red Cross and Red Crescent Movement, Internet protocol suite, Internet Radio Linking Project, IP address, Japan Amateur Radio League, Java Platform, Standard Edition, Kenwood Corporation, Linux kernel, ..., Lookup table, MacOS, MDC-1200, Message transfer agent, Minimum-shift keying, Ministry of Posts and Telecommunications (Japan), Multi-Band Excitation, Multipath propagation, National Traffic System, Network address translation, Network interface controller, Network packet, NXDN, ODROID, Online chat, OpenSSL, Package manager, PostgreSQL, Process identifier, Project 25, Python (programming language), QST, RadCom, Radio Society of Great Britain, Raspberry Pi, Relational database, Ricochet (Internet service), Routing, RS-232, Satellite, Scripting language, Signal strength in telecommunications, Simplex communication, Small satellite, Spreadsheet, Terrestrial Trunked Radio, Ultra high frequency, University of Liège, USB, Vernonia, Oregon, Very high frequency, 2-meter band, 23-centimeter band, 70-centimeter band. Expand index (44 more) »
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 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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American Radio Relay League
The American Radio Relay League (ARRL) is the largest membership association of amateur radio enthusiasts in the USA.
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American Red Cross
The American Red Cross (ARC), also known as the American National Red Cross, is a humanitarian organization that provides emergency assistance, disaster relief, and disaster preparedness education in the United States.
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Amplitude modulation
Amplitude modulation (AM) is a modulation technique used in electronic communication, most commonly for transmitting information via a radio carrier wave.
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AMSAT
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.
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Apache HTTP Server
The Apache HTTP Server, colloquially called Apache, is a free and open-source cross-platform web server, released under the terms of Apache License 2.0.
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Apache Tomcat
Apache Tomcat, often referred to as Tomcat Server, is an open-source Java Servlet Container developed by the Apache Software Foundation (ASF).
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Association of Public-Safety Communications Officials-International
Association of Public-Safety Communications Officials-International (APCO) was founded in 1935.
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Atlanta
Atlanta is the capital city and most populous municipality of the state of Georgia in the United States.
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Automatic Packet Reporting System
Automatic Packet Reporting System (APRS) is an amateur radio-based system for real time digital communications of information of immediate value in the local area.
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Bandwidth (signal processing)
Bandwidth is the difference between the upper and lower frequencies in a continuous band of frequencies.
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BIND
BIND, or named, is the most widely used Domain Name System (DNS) software on the Internet.
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Certified first responder
For the more current term, see Emergency medical responder A certified first responder (Also called an Emergency Medical Responder, Emergency First Responder, Medical First Responder, or First Responder) is a person who has completed a course and received certification in providing pre-hospital care for medical emergencies.
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Cliff effect
In telecommunications, the (digital) cliff effect or brickwall effect is a sudden loss of digital signal reception.
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Command-line interface
A command-line interface or command language interpreter (CLI), also known as command-line user interface, console user interface and character user interface (CUI), is a means of interacting with a computer program where the user (or client) issues commands to the program in the form of successive lines of text (command lines).
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Contact (amateur radio)
An amateur radio contact, more commonly referred to as simply a "contact", is an exchange of information between two amateur radio stations.
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Continuous wave
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.
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CQ Amateur Radio
CQ Amateur Radio (also known simply as CQ or CQ magazine, and formerly as CQ: The Radio Amateur's Journal) is a magazine for amateur radio enthusiasts first published in 1945.
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Cron
The software utility cron is a time-based job scheduler in Unix-like computer operating systems.
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Cross-platform
In computing, cross-platform software (also multi-platform software or platform-independent software) is computer software that is implemented on multiple computing platforms.
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CubeSat
A CubeSat (U-class spacecraft) is a type of miniaturized satellite for space research that is made up of multiples of 10×10×10 cm cubic units.
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Digital mobile radio
Digital mobile radio (DMR) is an open digital mobile radio standard defined in the European Telecommunications Standards Institute (ETSI) Standard TS 102 361 parts 1–4 and used in commercial products around the world.
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Digital private mobile radio
dPMR or digital private mobile radio, is a Common Air Interface (CAI) for digital mobile communications.
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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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EchoLink
EchoLink is a computer-based Amateur Radio system distributed free of charge that allows radio amateurs to communicate with other amateur radio operators using Voice over IP (VoIP) technology on the Internet for at least part of the path between them.
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Electronic mail (email or e-mail) is a method of exchanging messages ("mail") between people using electronic devices.
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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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Ethernet over twisted pair
Ethernet over twisted pair technologies use twisted-pair cables for the physical layer of an Ethernet computer network.
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European Space Agency
The European Space Agency (ESA; Agence spatiale européenne, ASE; Europäische Weltraumorganisation) is an intergovernmental organisation of 22 member states dedicated to the exploration of space.
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File transfer
File transfer is the transmission of a computer file through a communication channel from one computer system to another.
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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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Fully qualified domain name
A fully qualified domain name (FQDN), sometimes also referred to as an absolute domain name,RFC 1035, Domain names: implementation and specification is a domain name that specifies its exact location in the tree hierarchy of the Domain Name System (DNS).
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Gateway (telecommunications)
A gateway is the piece of networking hardware used in telecommunications via communications networks that allows data to flow from one discrete network to another.
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GNU C Library
The GNU C Library, commonly known as glibc, is the GNU Project's implementation of the C standard library.
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Great Coastal Gale of 2007
The Great Coastal Storm of 2007 was a series of three powerful Pacific storms that affected the U.S. states of Oregon and Washington and the Canadian province of British Columbia between December 1, 2007 and December 4, 2007.
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GTK+
GTK+ (formerly GIMP Toolkit) is a cross-platform widget toolkit for creating graphical user interfaces.
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Haute École de la Province de Liège
In 2007, the three Belgian Hautes Ecoles (Colleges) of the Province of Liège (Léon-Eli Troclet, André Vésale and Rennequin Sualem) came together in a single large ensemble called Haute Ecole de la Province de Liège (HEPL).
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Haymarket, Virginia
Haymarket is a town in Prince William County, Virginia, United States.
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High frequency
High frequency (HF) is the ITU designation for the range of radio frequency electromagnetic waves (radio waves) between 3 and 30 megahertz (MHz).
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Icom Incorporated
() is an international manufacturer of radio transmitting and receiving equipment, founded in 1954 by Tokuzo Inoue with the company's original name being "Inoue".
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Incident Command System
The Incident Command System (ICS) is a standardized approach to the command, control, and coordination of emergency response providing a common hierarchy within which responders from multiple agencies can be effective.
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International Red Cross and Red Crescent Movement
The International Red Cross and Red Crescent Movement is an international humanitarian movement with approximately 17 million volunteers, members and staff worldwide which was founded to protect human life and health, to ensure respect for all human beings, and to prevent and alleviate human suffering.
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Internet protocol suite
The Internet protocol suite is the conceptual model and set of communications protocols used on the Internet and similar computer networks.
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Internet Radio Linking Project
The Internet Radio Linking Project, also called IRLP, is a closed-source project that links amateur radio stations around the world by using Voice over IP (VoIP).
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IP address
An Internet Protocol address (IP address) is a numerical label assigned to each device connected to a computer network that uses the Internet Protocol for communication.
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Japan Amateur Radio League
The Japan Amateur Radio League (JARL) (in Japanese, 日本アマチュア無線連盟) is a national non-profit organization for amateur radio enthusiasts in Japan.
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Java Platform, Standard Edition
Java Platform, Standard Edition (Java SE) is a computing platform for development and deployment of portable code for desktop and server environments.
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Kenwood Corporation
is a Japanese company that designs, develops and markets a range of car audio, Hi-Fi home and personal audio, professional two-way radio communications equipment and amateur radio ("ham") equipment.
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Linux kernel
The Linux kernel is an open-source monolithic Unix-like computer operating system kernel.
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Lookup table
In computer science, a lookup table is an array that replaces runtime computation with a simpler array indexing operation.
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MacOS
macOS (previously and later) is a series of graphical operating systems developed and marketed by Apple Inc. since 2001.
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MDC-1200
MDC (Motorola Data Communications), also known as Stat-Alert, MDC-1200 and MDC-600, is a Motorola two-way radio low-speed data system using audio frequency shift keying, (AFSK).
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Message transfer agent
Within Internet message handling services (MHS), a message transfer agent or mail transfer agent (MTA) or mail relay is software that transfers electronic mail messages from one computer to another using a client–server application architecture.
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Minimum-shift keying
In digital modulation, minimum-shift keying (MSK) is a type of continuous-phase frequency-shift keying that was developed in the late 1950s and 1960s.
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Ministry of Posts and Telecommunications (Japan)
The was one of the ministries in the Japanese government.
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Multi-Band Excitation
Multi-Band Excitation (MBE) is a series of proprietary speech coding standards developed by Digital Voice Systems, Inc.
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Multipath propagation
In wireless telecommunications, multipath is the propagation phenomenon that results in radio signals reaching the receiving antenna by two or more paths.
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National Traffic System
The National Traffic System (NTS) is an organized network of amateur radio operators sponsored by the American Radio Relay League for the purpose of relaying messages throughout the U.S. and Canada.
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Network address translation
Network address translation (NAT) is a method of remapping one IP address space into another by modifying network address information in the IP header of packets while they are in transit across a traffic routing device.
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Network interface controller
A network interface controller (NIC, also known as a network interface card, network adapter, LAN adapter or physical network interface, and by similar terms) is a computer hardware component that connects a computer to a computer network.
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Network packet
A network packet is a formatted unit of data carried by a packet-switched network.
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NXDN
NXDN is an open standard Common Air Interface (CAI) technical protocol for mobile communications.
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ODROID
The ODROID is a series of single-board computers and tablet computers created by Hardkernel Co., Ltd., an open-source hardware company located in South Korea.
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Online chat
Online chat may refer to any kind of communication over the Internet that offers a real-time transmission of text messages from sender to receiver.
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OpenSSL
OpenSSL is a software library for applications that secure communications over computer networks against eavesdropping or need to identify the party at the other end.
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Package manager
A package manager or package management system is a collection of software tools that automate the process of installing, upgrading, configuring, and removing computer programs for a computer's operating system in a consistent manner.
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PostgreSQL
PostgreSQL, often simply Postgres, is an object-relational database management system (ORDBMS) with an emphasis on extensibility and standards compliance.
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Process identifier
In computing, the process identifier testing (normally referred to as the process ID or PID) is a number used by most operating system kernels—such as those of UNIX, macOS and Microsoft Windows—to uniquely identify an active process.
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Project 25
Project 25 (P25 or APCO-25) is a suite of standards for digital mobile radio communications designed for use by public safety organizations in North America.
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Python (programming language)
Python is an interpreted high-level programming language for general-purpose programming.
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QST
QST is a magazine for amateur radio enthusiasts, published by the American Radio Relay League (ARRL).
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RadCom
RadCom is the monthly magazine published by the Radio Society of Great Britain and is provided to all corporate members of the society.
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Radio Society of Great Britain
The Radio Society of Great Britain (RSGB), first founded in 1913 as the London Wireless Club, is the United Kingdom's recognised national society for amateur radio operators.
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Raspberry Pi
The Raspberry Pi is a series of small single-board computers developed in the United Kingdom by the Raspberry Pi Foundation to promote the teaching of basic computer science in schools and in developing countries.
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Relational database
A relational database is a digital database based on the relational model of data, as proposed by E. F. Codd in 1970.
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Ricochet (Internet service)
Ricochet was one of the pioneering wireless Internet access services in the United States, before Wi-Fi, 3G, and other technologies were available to the general public.
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Routing
Routing is the process of selecting a path for traffic in a network, or between or across multiple networks.
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RS-232
In telecommunications, RS-232, Recommended Standard 232 is a standard introduced in 1960 for serial communication transmission of data.
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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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Scripting language
A scripting or script language is a programming language that supports scripts: programs written for a special run-time environment that automate the execution of tasks that could alternatively be executed one-by-one by a human operator.
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Signal strength in telecommunications
In telecommunications, particularly in radio frequency, signal strength (also referred to as field strength) refers to the transmitter power output as received by a reference antenna at a distance from the transmitting antenna.
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Simplex communication
Simplex communication is a communication channel that sends information in one direction only.
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Small satellite
Small satellites, miniaturized satellites, or smallsats, are satellites of low mass and size, usually under.
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Spreadsheet
A spreadsheet is an interactive computer application for organization, analysis and storage of data in tabular form.
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Terrestrial Trunked Radio
Terrestrial Trunked Radio (TETRA; formerly known as Trans-European Trunked Radio), a European standard for a trunked radio system, is a professional mobile radio and two-way transceiver specification.
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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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University of Liège
The University of Liège (ULiège), in Liège, Wallonia, Belgium, is a major public university in the French Community of Belgium.
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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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Vernonia, Oregon
Vernonia is a city in Columbia County, Oregon, United States.
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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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2-meter band
The 2-meter amateur radio band is a portion of the VHF radio spectrum, comprising frequencies stretching from 144 MHz to 148 MHz in International Telecommunication Union region (ITU) Regions 2 (North and South America plus Hawaii) and 3 (Asia and Oceania) and from 144 MHz to 146 MHz in ITU Region 1 (Europe, Africa, and Russia).
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23-centimeter band
The 23 centimeter, 1200 MHz or 1.2 GHz band is a portion of the UHF (microwave) radio spectrum internationally allocated to amateur radio and amateur satellite use on a secondary basis.
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70-centimeter band
The 70-centimeter or 440 MHz band is a portion of the UHF radio spectrum internationally allocated to amateur radio and amateur satellite use.
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Redirects here:
D star, D-Star, DSTAR, Digital Smart Technologies for Amateur Radio, Dstar.
References
[1] https://en.wikipedia.org/wiki/D-STAR
