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<title>Frequency assignment</title>

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<span id="openzim-page-title" class="mw-page-title-main"><span class="mw-page-title-main">Frequency assignment</span></span>

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<p><b>Frequency assignment</b> is the authorization of use of a particular radio frequency.

</p><p>In Article 1.18 of the <a href="International_Telecommunication_Union" title="International Telecommunication Union">International Telecommunication Union's</a> (ITU) <a href="ITU_Radio_Regulations" title="ITU Radio Regulations">Radio Regulations</a> (RR),<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> the process is defined as "Authorization given by a <a href="Frequency_administration" class="mw-redirect" title="Frequency administration">frequency administration</a> for a <a href="Radio_station" class="mw-redirect" title="Radio station">radio station</a> to use a <a href="Radio_frequency" title="Radio frequency">radio frequency</a> or radio frequency channel under specified conditions".

</p><p><i>Frequency assignment</i> is also a special term, used by national <a href="Frequency_administration" class="mw-redirect" title="Frequency administration">frequency administrations</a>. For other terms see table below.

</p>

<caption><b>ITU-terms pertaining to frequency regulation</b>

</caption>

<td width="10%" style="background:#FF99CC;" rowspan="2">Frequency<br>distribution to:

</td>

<td width="60%" style="background:#A0E0A0;" align="center" colspan="6"><b>ITU languages</b>

</td>

<td width="5%" style="background:#B0C0B0;" rowspan="2">ITU RR<br><small>(article)</small>

</td></tr>

<td>French

</td>

<th>English

</th>

<td>Spanish</td>

<td>Arabic</td>

<td>Chinese</td>

<td>Russian

</td></tr>

<td><a href="Radiocommunication_service" class="mw-redirect" title="Radiocommunication service">Radiocommunication services</a>

</td>

<td>attribution<br>(attribuer)

</td>

<td><a href="Frequency_allocation" title="Frequency allocation">allocation</a><br>(to allocate)

</td>

<td>attribucion<br>(attribuir)

</td>

<td>

</td>

<td>распределение<br>(распределять)

</td>

<td>1.16

</td></tr>

<td>Regions or countries

</td>

<td>allotisement<br>(allotir)

</td>

<td><a href="Frequency_allotment" class="mw-redirect" title="Frequency allotment">allotment</a><br>(to allot)

</td>

<td>adjudication<br>(adjudicar)

</td>

<td>

</td>

<td>выделение<br>(выделять)

</td>

<td>1.17

</td></tr>

<td><a href="Radio_station" class="mw-redirect" title="Radio station">Radio stations</a>

</td>

<td>assignation<br>(assigner)

</td>

<td><span style="color:#700;"><b>assignment<br>(to assign)</b></span>

</td>

<td>asignacion<br>(assignar)

</td>

<td>

</td>

<td>присвоение<br>(присваивать)

</td>

<td>1.18

</td></tr></tbody></table>

<ul><li><a href="Radio_station" class="mw-redirect" title="Radio station">Radio station</a></li>

<li><a href="Spectrum_management" title="Spectrum management">Spectrum management</a></li>

<li><a href="Frequency_coordinator" title="Frequency coordinator">Frequency coordinator</a></li>

<li><a href="Broadcast_license" title="Broadcast license">Broadcast license</a></li>

<li><a href="Cellular_frequencies" title="Cellular frequencies">Cellular frequencies</a></li>

<li><a href="Earth_observation_satellites_transmission_frequencies" title="Earth observation satellites transmission frequencies">Earth observation satellites transmission frequencies</a></li></ul>

<div class="mw-heading mw-heading2"><h2 id="References_/_sources">References / sources</h2></div>

<li id="cite_note-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-1">^</a></b></span> <span class="reference-text">ITU Radio Regulations, Section IV. Radio Stations and Systems – Article 1.18, definition: <i>assignment (of a radio frequency or radio frequency channel)</i></span>

</li>

</ol></div>

<ul><li><a rel="nofollow" class="external text" href="http://www.itu.int">International Telecommunication Union (ITU)</a></li></ul>

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</style><div id="Telecommunications802" style="font-size:114%;margin:0 4em"><a href="Telecommunications" title="Telecommunications">Telecommunications</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="History_of_telecommunication" title="History of telecommunication">History</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Beacon#For_defensive_communications" title="Beacon">Beacon</a></li>

<li><a href="History_of_broadcasting" title="History of broadcasting">Broadcasting</a></li>

<li><a href="Cable_protection_system" title="Cable protection system">Cable protection system</a></li>

<li><a href="Cable_television" title="Cable television">Cable TV</a></li>

<li><a href="Communications_satellite#History" title="Communications satellite">Communications satellite</a></li>

<li><a href="Computer_network#History" title="Computer network">Computer network</a></li>

<li><a href="Data_compression" title="Data compression">Data compression</a>

<ul><li><a href="Audio_coding_format" title="Audio coding format">audio</a></li>

<li><a href="Image_compression" title="Image compression">image</a></li>

<li><a href="Video_coding_format" title="Video coding format">video</a></li></ul></li>

<li><a href="Digital_media" title="Digital media">Digital media</a>

<ul><li><a href="Internet_video" title="Internet video">Internet video</a></li>

<li><a href="Online_video_platform" title="Online video platform">online video platform</a></li>

<li><a href="Social_media" title="Social media">social media</a></li>

<li><a href="Streaming_media" title="Streaming media">streaming</a></li></ul></li>

<li><a href="Drums_in_communication" title="Drums in communication">Drums</a></li>

<li><a href="Edholm's_law" title="Edholm's law">Edholm's law</a></li>

<li><a href="Electrical_telegraph#History" title="Electrical telegraph">Electrical telegraph</a></li>

<li><a href="Heliograph#History" title="Heliograph">Heliographs</a></li>

<li><a href="Hydraulic_telegraph#Greek_hydraulic_semaphore_system" title="Hydraulic telegraph">Hydraulic telegraph</a></li>

<li><a href="Information_Age" title="Information Age">Information Age</a></li>

<li><a href="Information_revolution" class="mw-redirect" title="Information revolution">Information revolution</a></li>

<li><a href="History_of_the_Internet" title="History of the Internet">Internet</a></li>

<li><a href="Mass_media#History" title="Mass media">Mass media</a></li>

<li><a href="History_of_mobile_phones" title="History of mobile phones">Mobile phone</a>

<ul><li><a href="Smartphone" title="Smartphone">Smartphone</a></li></ul></li>

<li><a href="Optical_communication" title="Optical communication">Optical telecommunication</a></li>

<li><a href="Optical_telegraph" title="Optical telegraph">Optical telegraphy</a></li>

<li><a href="Pager" title="Pager">Pager</a></li>

<li><a href="Photophone" title="Photophone">Photophone</a></li>

<li><a href="History_of_prepaid_mobile_phones" title="History of prepaid mobile phones">Prepaid mobile phone</a></li>

<li><a href="History_of_radio" title="History of radio">Radio</a></li>

<li><a href="Radiotelephone" title="Radiotelephone">Radiotelephone</a></li>

<li><a href="Communications_satellite" title="Communications satellite">Satellite communications</a></li>

<li><a href="Semaphore" title="Semaphore">Semaphore</a>

<ul><li><a href="Phryctoria" title="Phryctoria">Phryctoria</a></li></ul></li>

<li><a href="Semiconductor" title="Semiconductor">Semiconductor</a>

<ul><li><a href="Semiconductor_device" title="Semiconductor device">device</a></li>

<li><a href="MOSFET" title="MOSFET">MOSFET</a></li>

<li><a href="History_of_the_transistor" title="History of the transistor">transistor</a></li></ul></li>

<li><a href="Smoke_signal" title="Smoke signal">Smoke signals</a></li>

<li><a href="History_of_telecommunication" title="History of telecommunication">Telecommunications history</a></li>

<li><a href="Telautograph" title="Telautograph">Telautograph</a></li>

<li><a href="Telegraphy" title="Telegraphy">Telegraphy</a></li>

<li><a href="Teleprinter" title="Teleprinter">Teleprinter</a> (teletype)</li>

<li><a href="History_of_the_telephone" title="History of the telephone">Telephone</a></li>

<li><i><a href="The_Telephone_Cases" title="The Telephone Cases">The Telephone Cases</a></i></li>

<li><a href="History_of_television" title="History of television">Television</a>

<ul><li><a href="Digital_television" title="Digital television">digital</a></li>

<li><a href="Streaming_television" title="Streaming television">streaming</a></li></ul></li>

<li><a href="Submarine_communications_cable#Early_history:_telegraph_and_coaxial_cables" title="Submarine communications cable">Undersea telegraph line</a></li>

<li><a href="History_of_videotelephony" title="History of videotelephony">Videotelephony</a></li>

<li><a href="Whistled_language" title="Whistled language">Whistled language</a></li>

<li><a href="Wireless_revolution" class="mw-redirect" title="Wireless revolution">Wireless revolution</a></li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Pioneers</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Nasir_Ahmed_(engineer)" title="Nasir Ahmed (engineer)">Nasir Ahmed</a></li>

<li><a href="Edwin_Howard_Armstrong" title="Edwin Howard Armstrong">Edwin Howard Armstrong</a></li>

<li><a href="Mohamed_M._Atalla" title="Mohamed M. Atalla">Mohamed M. Atalla</a></li>

<li><a href="John_Logie_Baird" title="John Logie Baird">John Logie Baird</a></li>

<li><a href="Paul_Baran" title="Paul Baran">Paul Baran</a></li>

<li><a href="John_Bardeen" title="John Bardeen">John Bardeen</a></li>

<li><a href="Alexander_Graham_Bell" title="Alexander Graham Bell">Alexander Graham Bell</a></li>

<li><a href="Emile_Berliner" title="Emile Berliner">Emile Berliner</a></li>

<li><a href="Tim_Berners-Lee" title="Tim Berners-Lee">Tim Berners-Lee</a></li>

<li><a href="Francis_Blake_(inventor)" title="Francis Blake (inventor)">Francis Blake</a></li>

<li><a href="Jagadish_Chandra_Bose" title="Jagadish Chandra Bose">Jagadish Chandra Bose</a></li>

<li><a href="Charles_Bourseul" title="Charles Bourseul">Charles Bourseul</a></li>

<li><a href="Walter_Houser_Brattain" class="mw-redirect" title="Walter Houser Brattain">Walter Houser Brattain</a></li>

<li><a href="Claude_Chappe" title="Claude Chappe">Claude Chappe</a></li>

<li><a href="Yogen_Dalal" class="mw-redirect" title="Yogen Dalal">Yogen Dalal</a></li>

<li><a href="Donald_Davies" title="Donald Davies">Donald Davies</a></li>

<li><a href="Daniel_Davis_Jr." title="Daniel Davis Jr.">Daniel Davis Jr.</a></li>

<li><a href="Amos_Dolbear" title="Amos Dolbear">Amos Dolbear</a></li>

<li><a href="Thomas_Edison" title="Thomas Edison">Thomas Edison</a></li>

<li><a href="Philo_Farnsworth" title="Philo Farnsworth">Philo Farnsworth</a></li>

<li><a href="Reginald_Fessenden" title="Reginald Fessenden">Reginald Fessenden</a></li>

<li><a href="Lee_de_Forest" title="Lee de Forest">Lee de Forest</a></li>

<li><a href="Elisha_Gray" title="Elisha Gray">Elisha Gray</a></li>

<li><a href="Oliver_Heaviside" title="Oliver Heaviside">Oliver Heaviside</a></li>

<li><a href="Robert_Hooke" title="Robert Hooke">Robert Hooke</a></li>

<li><a href="Erna_Schneider_Hoover" title="Erna Schneider Hoover">Erna Schneider Hoover</a></li>

<li><a href="Harold_Hopkins_(physicist)" title="Harold Hopkins (physicist)">Harold Hopkins</a></li>

<li><a href="Gardiner_Greene_Hubbard" title="Gardiner Greene Hubbard">Gardiner Greene Hubbard</a></li>

<li><a href="Dawon_Kahng" title="Dawon Kahng">Dawon Kahng</a></li>

<li><a href="Charles_K._Kao" title="Charles K. Kao">Charles K. Kao</a></li>

<li><a href="Narinder_Singh_Kapany" title="Narinder Singh Kapany">Narinder Singh Kapany</a></li>

<li><a href="Hedy_Lamarr" title="Hedy Lamarr">Hedy Lamarr</a></li>

<li><a href="Roberto_Landell_de_Moura" title="Roberto Landell de Moura">Roberto Landell</a></li>

<li><a href="Innocenzo_Manzetti" title="Innocenzo Manzetti">Innocenzo Manzetti</a></li>

<li><a href="Guglielmo_Marconi" title="Guglielmo Marconi">Guglielmo Marconi</a></li>

<li><a href="Robert_Metcalfe" title="Robert Metcalfe">Robert Metcalfe</a></li>

<li><a href="Antonio_Meucci" title="Antonio Meucci">Antonio Meucci</a></li>

<li><a href="Samuel_Morse" title="Samuel Morse">Samuel Morse</a></li>

<li><a href="Jun-ichi_Nishizawa" title="Jun-ichi Nishizawa">Jun-ichi Nishizawa</a></li>

<li><a href="Charles_Grafton_Page" title="Charles Grafton Page">Charles Grafton Page</a></li>

<li><a href="Radia_Perlman" title="Radia Perlman">Radia Perlman</a></li>

<li><a href="Alexander_Stepanovich_Popov" class="mw-redirect" title="Alexander Stepanovich Popov">Alexander Stepanovich Popov</a></li>

<li><a href="Tivadar_Pusk%C3%A1s" title="Tivadar Puskás">Tivadar Puskás</a></li>

<li><a href="Johann_Philipp_Reis" title="Johann Philipp Reis">Johann Philipp Reis</a></li>

<li><a href="Claude_Shannon" title="Claude Shannon">Claude Shannon</a></li>

<li><a href="Almon_Brown_Strowger" title="Almon Brown Strowger">Almon Brown Strowger</a></li>

<li><a href="Henry_Sutton_(inventor)" title="Henry Sutton (inventor)">Henry Sutton</a></li>

<li><a href="Charles_Sumner_Tainter" title="Charles Sumner Tainter">Charles Sumner Tainter</a></li>

<li><a href="Nikola_Tesla" title="Nikola Tesla">Nikola Tesla</a></li>

<li><a href="Camille_Tissot" title="Camille Tissot">Camille Tissot</a></li>

<li><a href="Alfred_Vail" title="Alfred Vail">Alfred Vail</a></li>

<li><a href="Thomas_A._Watson" title="Thomas A. Watson">Thomas A. Watson</a></li>

<li><a href="Charles_Wheatstone" title="Charles Wheatstone">Charles Wheatstone</a></li>

<li><a href="Vladimir_K._Zworykin" title="Vladimir K. Zworykin">Vladimir K. Zworykin</a></li>

<li><i><a href="List_of_Internet_pioneers" title="List of Internet pioneers">Internet pioneers</a></i></li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="Transmission_medium" title="Transmission medium">Transmission<br>media</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Coaxial_cable" title="Coaxial cable">Coaxial cable</a></li>

<li><a href="Fiber-optic_communication" title="Fiber-optic communication">Fiber-optic communication</a>

<ul><li><a href="Optical_fiber" title="Optical fiber">optical fiber</a></li></ul></li>

<li><a href="Free-space_optical_communication" title="Free-space optical communication">Free-space optical communication</a></li>

<li><a href="Molecular_communication" title="Molecular communication">Molecular communication</a></li>

<li><a href="Radio_wave" title="Radio wave">Radio waves</a>

<ul><li><a href="Wireless" title="Wireless">wireless</a></li></ul></li>

<li><a href="Transmission_line" title="Transmission line">Transmission line</a>

<ul><li><a href="Telecommunication_circuit" title="Telecommunication circuit">telecommunication circuit</a></li></ul></li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="Network_topology" title="Network topology">Network topology</a><br>and switching</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Bandwidth_(computing)" title="Bandwidth (computing)">Bandwidth</a></li>

<li><a href="Telecommunications_link" title="Telecommunications link">Links</a></li>

<li><a href="Network_switch" title="Network switch">Network switching</a>

<ul><li><a href="Circuit_switching" title="Circuit switching">circuit</a></li>

<li><a href="Packet_switching" title="Packet switching">packet</a></li></ul></li>

<li><a href="Node_(networking)" title="Node (networking)">Nodes</a>

<ul><li><a href="Terminal_(telecommunication)" title="Terminal (telecommunication)">terminal</a></li></ul></li>

<li><a href="Telephone_exchange" title="Telephone exchange">Telephone exchange</a></li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="Multiplexing" title="Multiplexing">Multiplexing</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Space-division_multiple_access" title="Space-division multiple access">Space-division</a></li>

<li><a href="Frequency-division_multiplexing" title="Frequency-division multiplexing">Frequency-division</a></li>

<li><a href="Time-division_multiplexing" title="Time-division multiplexing">Time-division</a></li>

<li><a href="Polarization-division_multiplexing" title="Polarization-division multiplexing">Polarization-division</a></li>

<li><a href="Orbital_angular_momentum_multiplexing" title="Orbital angular momentum multiplexing">Orbital angular-momentum</a></li>

<li><a href="Code-division_multiple_access" title="Code-division multiple access">Code-division</a></li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Concepts</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Communication_protocol" title="Communication protocol">Communication protocol</a></li>

<li><a href="Computer_network" title="Computer network">Computer network</a></li>

<li><a href="Data_communication" title="Data communication">Data transmission</a></li>

<li><a href="Store_and_forward" title="Store and forward">Store and forward</a></li>

<li><a href="Telecommunications_equipment" title="Telecommunications equipment">Telecommunications equipment</a></li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="Telecommunications_network" title="Telecommunications network">Types of network</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Cellular_network" title="Cellular network">Cellular network</a></li>

<li><a href="Ethernet" title="Ethernet">Ethernet</a></li>

<li><a href="Mobile_telephony" title="Mobile telephony">Mobile</a></li>

<li><a href="Public_switched_telephone_network" title="Public switched telephone network">Public Switched Telephone</a></li>

<li><a href="Radio_network" title="Radio network">Radio</a></li>

<li><a href="Television_broadcasting" class="mw-redirect" title="Television broadcasting">Television</a></li>

<li><a href="Telex" title="Telex">Telex</a></li>

<li><a href="Wireless_network" title="Wireless network">Wireless network</a></li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="Telecommunications_network" title="Telecommunications network">Notable networks</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="ARPANET" title="ARPANET">ARPANET</a></li>

<li><a href="BITNET" title="BITNET">BITNET</a></li>

<li><a href="CYCLADES" title="CYCLADES">CYCLADES</a></li>

<li><a href="FidoNet" title="FidoNet">FidoNet</a></li>

<li><a href="Internet" title="Internet">Internet</a></li>

<li><a href="Internet2" title="Internet2">Internet2</a></li>

<li><a href="JANET" title="JANET">JANET</a></li>

<li><a href="NPL_network" title="NPL network">NPL network</a></li>

<li><a href="TANet" title="TANet">TANet</a></li>

<li><a href="Toasternet" title="Toasternet">Toasternet</a></li>

<li><a href="Usenet" title="Usenet">Usenet</a></li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Locations</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li>Africa</li>

<li>Americas

<ul><li>North</li>

<li>South</li></ul></li>

<li>Antarctica</li>

<li>Europe</li>

<li>Oceania</li>

<li><i><a href="List_of_telecommunications_regulatory_bodies" title="List of telecommunications regulatory bodies">Global telecommunications regulation bodies</a></i></li></ul>

</div></td></tr><tr><td class="navbox-abovebelow" colspan="2"><div>

<ul><li><span class="nowrap"><span class="noviewer" typeof="mw:File"><span></span></span> </span><a href="Portal%3ATelecommunication" title="Portal:Telecommunication">Telecommunication portal</a></li>

<li><span class="noviewer" typeof="mw:File"><span title="Category"></span></span> Category</li>

<li><span class="noviewer" typeof="mw:File"><span title="List-Class article"></span></span> <a href="Outline_of_telecommunication" title="Outline of telecommunication">Outline</a></li>

<li><span class="noviewer" typeof="mw:File"><span title="Commons page"></span></span> <a href="https://commons.wikimedia.org/wiki/Category:Telecommunications" class="extiw external" title="commons:Category:Telecommunications">Commons</a></li></ul>

</div></td></tr></tbody></table></div></div><div><div class="zim-footer">

This article is issued from <a class="external text" title="Last edited on 2025-06-12" href="https://en.wikipedia.org/wiki/?title=Frequency_assignment&oldid=1295264940">Wikipedia</a>. The text is available under <a class="external text" href="https://creativecommons.org/licenses/by-sa/4.0/deed.en">Creative Commons Attribution-Share Alike 4.0</a> unless otherwise noted. Additional terms may apply for the media files.

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