Editing Ultra high frequency (section)

== Examples of UHF frequency allocations ==

===Australia===
* 406–406.1&nbsp;MHz: Mobile satellite service<ref>{{Cite web|url=https://www.acma.gov.au/-/media/Spectrum-Engineering/Information/pdf/Radiocommunications-Assignment-and-Licensing-Instruction-RALI-MS22-400-MHz-Plan.pdf|title=400 MHz Plan|website=acma.gov|url-status=dead|archive-url=https://web.archive.org/web/20190404175218/https://www.acma.gov.au/-/media/Spectrum-Engineering/Information/pdf/Radiocommunications-Assignment-and-Licensing-Instruction-RALI-MS22-400-MHz-Plan.pdf|archive-date=April 4, 2019|access-date=November 3, 2019}}</ref>
* 450.4875–451.5125&nbsp;MHz: Fixed point-to-point link
* 457.50625–459.9875&nbsp;MHz: Land mobile service
* 476–477&nbsp;MHz: [[UHF CB|UHF citizens band]] (land mobile service)
* 503–694&nbsp;MHz: [[Australian and New Zealand television frequencies|UHF channels]] for television broadcasting

===Canada===
* 430–450&nbsp;MHz: Amateur radio (70&nbsp;cm band)
* 470–806&nbsp;MHz: [[Terrestrial television]] (with select channels in the 600 and 700&nbsp;MHz bands left vacant)
* 1452–1492&nbsp;MHz: [[Digital Audio Broadcasting]] ([[L band]])<ref>{{cite web|url=https://www.broadcasting-history.ca/digital-audio-broadcasting-dab|title=Digital Audio Broadcasting (DAB) - History of Canadian Broadcasting|website=Broadcasting-history.ca|access-date=15 October 2017}}</ref>
* Many other frequency assignments for Canada and Mexico are similar to their US counterparts

===France===
* 380-400&nbsp;MHz: [[TETRAPOL|Terrestrial Trunked Radio for Police]]
* 430-440&nbsp;MHz: Amateur radio ([[70-centimeter band|70&nbsp;cm band]])
*446.0–446.2&nbsp;MHz : European unlicensed PMR service, [[PMR446]]
* 470-694&nbsp;MHz: [[Terrestrial television]]

===New Zealand===
* 406.1–420&nbsp;MHz: Land mobile service
* 430–440&nbsp;MHz: [[Amateur radio]] ([[70-centimeter band|70&nbsp;cm band]]) and [[amateur radio satellite]]
* 476–477&nbsp;MHz: [[UHF CB|PRS]] Personal Radio Service (Land mobile service)
* 485–502&nbsp;MHz: Analog and [[Project 25|P25]] emergency services use
* 510–622&nbsp;MHz: [[Terrestrial television]]
* 960–1215&nbsp;MHz: [[Aeronautical radionavigation service|Aeronautical radionavigation]]
* 1240–1300&nbsp;MHz: Amateur radio ([[23-centimeter band|23&nbsp;cm band]])

===United Kingdom===
*380–399.9&nbsp;MHz: [[Terrestrial Trunked Radio]] (TETRA) service for emergency use
*430–440&nbsp;MHz: Amateur radio ([[70-centimeter band|70&nbsp;cm band]])
*446.0–446.2&nbsp;MHz : European unlicensed PMR service, [[PMR446]]
*457–464&nbsp;MHz: Scanning telemetry and telecontrol, assigned mostly to the water, gas, and electricity industries
*606–614&nbsp;MHz: Radio microphones and radio-astronomy
*470–862&nbsp;MHz: Previously used for [[Analogue terrestrial television in the United Kingdom#625 line system|analogue TV channels 21–69]] (until 2012).
**Currently channels 21 to 37 and 39 to 48 are used for [[Freeview (UK)|Freeview]] digital TV.<ref>{{cite web |title=What is 700MHz Clearance? |url=https://www.freeview.co.uk/corporate/platform-management/700mhz-clearance |website=Freeview}}</ref> Channels 55 to 56 were previously used by temporary muxes COM7 and COM8, channel 38 was used for radio astronomy but has been cleared to allow [[Programme making and special events|PMSE]] users access on a licensed, shared basis.
**694–790&nbsp;MHz:<ref>{{cite web |title=Decision to make the 700 MHz band available for mobile data - statement |url=https://www.ofcom.org.uk/__data/assets/pdf_file/0024/46923/700-mhz-statement.pdf |access-date=4 April 2020}}</ref> i.e. channels 49 to 60 have been cleared, to allow these channels to be allocated for 5G cellular communication.
**791–862&nbsp;MHz,<ref>{{cite web|url=http://stakeholders.ofcom.org.uk/spectrum/spectrum-awards/awards-archive/completed-awards/800mhz-2.6ghz/|title=800 MHz & 2.6 GHz Combined Award|date=May 9, 2012|publisher=The Office of Communications|access-date=2014-11-21}}</ref> i.e. channels 61 to 69 inclusive were previously used for licensed and shared wireless microphones (channel 69 only), has since been allocated to 4G cellular communications.
*863–865&nbsp;MHz: Used for licence-exempt wireless systems.
*863–870&nbsp;MHz: [[Short Range Devices|Short range devices]], [[LPWAN]] [[Internet of things|IoT]] devices such as [[NarrowBand IOT|NarrowBand-IoT]].
*870–960&nbsp;MHz: Cellular communications (GSM900 - Vodafone and O2 only) including GSM-R and future TETRA
*1240–1325&nbsp;MHz: Amateur radio ([[23-centimeter band|23&nbsp;cm band]])
*1710–1880&nbsp;MHz: [[2G]] cellular communications (GSM1800)
*1880–1900&nbsp;MHz: [[Digital Enhanced Cordless Telecommunications|DECT]] [[cordless telephone]]
*1900–1980&nbsp;MHz: [[3G]] cellular communications (mobile phone uplink)
*2110–2170&nbsp;MHz: 3G cellular communications (base station downlink)
*2310–2450&nbsp;MHz: Amateur radio ([[13-centimeter band|13&nbsp;cm band]])

===United States===
UHF channels are used for [[digital television transition in the United States|digital television broadcasting]] on both [[North American broadcast television frequencies|over the air channels]] and [[North American cable television frequencies|cable television channels]]. Since 1962, UHF channel tuners (at the time, channels 14 to 83) have been required in television receivers by the [[All-Channel Receiver Act]]. However, because of their more limited range, and because few sets could receive them until older sets were replaced, UHF channels were less desirable to broadcasters than [[VHF]] channels (and licenses sold for lower prices).

A complete list of US television frequency allocations can be found at [[Pan-American television frequencies]].

There is a considerable amount of lawful unlicensed activity (cordless phones, wireless networking) clustered around 900&nbsp;MHz and 2.4&nbsp;GHz, regulated under [[Title 47 CFR Part 15]]. These [[ISM band]]s—frequencies with a higher unlicensed power permitted for use originally by industrial, scientific and medical apparatus—are now some of the most crowded in the spectrum because they are open to everyone. The 2.45&nbsp;GHz frequency is the standard for use by [[microwave oven]]s, adjacent to the frequencies allocated for [[Bluetooth]] network devices.

The spectrum from 806&nbsp;MHz to 890&nbsp;MHz (UHF channels 70 to 83) was taken away from TV broadcast services in 1983, primarily for [[advanced Mobile Phone System|analog mobile telephony]].

In 2009, as part of the [[Digital television#Switch-off time announced|transition from analog to digital over-the-air broadcast of television]], the spectrum from 698&nbsp;MHz to 806&nbsp;MHz (UHF channels 52 to 69) was removed from TV broadcasting, making it available for other uses. Channel 55, for instance, was sold to [[Qualcomm]] for their [[MediaFLO]] service, which was later sold to [[AT&T]], and discontinued in 2011. Some US broadcasters had been offered incentives to vacate this channel early, permitting its immediate mobile use. The [[Federal Communications Commission|FCC]]'s scheduled [[United States 2008 wireless spectrum auction|auction for this newly available spectrum]] was completed in March 2008.<ref>{{cite web|url=http://bits.blogs.nytimes.com/2008/03/18/going-oncegoing-twicethe-700-mhz-spectrum-is-sold/?ref=technology|title=Going Once…Going Twice…The 700 Mhz Spectrum is Sold|last=Hansell|first=Saul|date=March 18, 2008|website=Bits.blos.nytimes.com|access-date=15 October 2017}}</ref>

*225–420&nbsp;MHz: Government use, including [[meteorology]], military aviation, and federal two-way use<ref>[http://www.raytheon.com/capabilities/rtnwcm/groups/ncs/documents/content/rtn_ncs_products_arc164_pdf.pdf] {{dead link|date=December 2017}}</ref>
*420–450&nbsp;MHz: Government radiolocation, [[amateur radio satellite]] and [[amateur radio]] ([[70-centimeter band|70&nbsp;cm band]]), [[MedRadio]]<ref name="usfed-users">{{Cite web |url=https://www.ntia.doc.gov/page/federal-government-spectrum-use-reports-225-mhz-7125-ghz |title=Federal Government Spectrum Use Reports 225 MHz – 7.125 GHz |publisher=[[NTIA]] |date=Dec 2015 – Aug 2017 |access-date=October 21, 2019}}</ref>
*450–470&nbsp;MHz: UHF business band, [[General Mobile Radio Service]], and [[Family Radio Service]] 2-way "walkie-talkies", public safety
*470–512&nbsp;MHz: Low-band TV channels 14 to 20 (shared with public safety [[land mobile]] 2-way radio in 12 major metropolitan areas scheduled to relocate to 700&nbsp;MHz band by 2023<ref>{{Cite web|url=http://www.npstc.org/download.jsp?tableId=37&column=217&id=2678&file=T_Band_Report_20130315.pdf|title=T-Band Report|date=March 15, 2013|website=Npstc.org|access-date=17 December 2017}}</ref>)
*512–608&nbsp;MHz: Medium-band TV channels 21 to 36 
*608–614&nbsp;MHz: [[Channel 37]] used for [[radio astronomy]] and wireless medical telemetry<ref>{{Cite web |date=3 November 2011 |title=Wireless Medical Telemetry Service (WMTS) |url=https://www.fcc.gov/wireless/bureau-divisions/broadband-division/wireless-medical-telemetry-service-wmts |access-date=17 December 2017 |website=Federal Communications Commission}}</ref>
*614–698&nbsp;MHz: Mobile broadband shared with TV channels 38 to 51 [[2008 United States wireless spectrum auction|auctioned in April 2017]]. TV stations were relocated by 2020.
**617–652&nbsp;MHz: Mobile broadband service downlink
**652–663&nbsp;MHz: Wireless microphones (higher priority) and unlicensed devices (lower priority)
**663–698&nbsp;MHz: Mobile broadband service uplink
*698–806&nbsp;MHz: [[United States 2008 wireless spectrum auction|Was auctioned in March 2008]]; bidders got full use after the transition to [[Digital television|digital TV]] was completed on June 12, 2009 (formerly high-band UHF TV channels 52 to 69) and recently modified in 2021 for [[5G]] UHF transmission bandwidth for 'over the air' channels 2 through 69 (virtual 1 through 36).
*806–816&nbsp;MHz: Public safety and commercial 2-way (formerly TV channels 70 to 72)
*817–824&nbsp;MHz: ESMR band for wideband mobile services (mobile phone) (formerly public safety and commercial 2-way)
*824–849&nbsp;MHz: Cellular A and B franchises, terminal (mobile phone) (formerly TV channels 73 to 77)
*849–851&nbsp;MHz: Commercial aviation air-ground systems
*851–861&nbsp;MHz: Public safety and commercial 2-way (formerly TV channels 77 to 80)
*862–869&nbsp;MHz: ESMR band for wideband mobile services (base station) (formerly public safety and commercial 2-way)
*869–894&nbsp;MHz: Cellular A and B franchises, base station (formerly TV channels 80 to 83)
*894–896&nbsp;MHz: Commercial aviation air-ground systems
*896–901&nbsp;MHz: Commercial 2-way radio
*901–902&nbsp;MHz: Narrowband PCS: commercial narrowband mobile services
*902–928&nbsp;MHz: [[ISM band]], amateur radio ([[33-centimeter band|33&nbsp;cm band]]), cordless phones and stereo, [[radio-frequency identification]], datalinks
*928–929&nbsp;MHz: [[SCADA]], alarm monitoring, meter reading systems and other narrowband services for a company's internal use
*929–930&nbsp;MHz: Pagers
*930–931&nbsp;MHz: Narrowband PCS: commercial narrowband mobile services
*931–932&nbsp;MHz: Pagers
*932–935&nbsp;MHz: Fixed microwave services: distribution of video, audio and other data
*935–940&nbsp;MHz: Commercial 2-way radio
*940–941&nbsp;MHz: Narrowband PCS: commercial narrowband mobile services
*941–960&nbsp;MHz: Mixed studio-transmitter fixed links, [[SCADA]], other.
*960–1215&nbsp;MHz: Aeronautical radionavigation
*1240–1300&nbsp;MHz: Amateur radio ([[23-centimeter band|23&nbsp;cm band]])
*1300–1350&nbsp;MHz: Long range radar systems
*1350–1390&nbsp;MHz: Military air traffic control and mobile telemetry systems at test ranges
*1390–1395&nbsp;MHz: Proposed wireless medical telemetry service. [[TerreStar Corporation|TerreStar]] failed to provide service by the required deadline.<ref name=":2">{{Cite web|url=http://transition.fcc.gov/Daily_Releases/Daily_Business/2017/db1010/DA-17-995A1.pdf|title=TerreStar Corporation Request for Temporary Waiver of Substantial Service Requirements for 1.4 GHz Licenses|date=2017-10-10|website=the FCC|access-date=2017-10-11}}</ref>
*1395–1400&nbsp;MHz: Wireless medical telemetry service
*1400–1427&nbsp;MHz: Earth exploration, radio astronomy, and space research
*1427–1432&nbsp;MHz: Wireless medical telemetry service
*1432–1435&nbsp;MHz: Proposed wireless medical telemetry service. [[TerreStar Corporation|TerreStar]] failed to provide service by the required deadline.<ref name=":2" />
*1435–1525&nbsp;MHz: Military use mostly for aeronautical mobile telemetry (therefore not available for [[Digital Audio Broadcasting]], unlike Canada/Europe)
*1525–1559&nbsp;MHz: [[SkyTerra|Skyterra]] downlink ([[Ligado Networks|Ligado]] is seeking FCC permission for terrestrial use<ref name=":0">{{Cite web|url=https://www.fcc.gov/ecfs/file/download/1103057126216/Ligado%20Ex%20Parte%20re%20Iridium%20Analysis%20(PUBLIC%2011-2-2016).pdf|title=Ligado Ex Parte re Iridium Analysis (PUBLIC 11-2-2016)|website=Ecfsapi.fcc.gov|access-date=17 December 2017}}</ref>)
**1526–1536&nbsp;MHz: proposed Ligado downlink
**1536–1559&nbsp;MHz: proposed guard band
*1559–1610&nbsp;MHz: [[Radionavigation-satellite service|Radio Navigation Satellite Services]] (RNSS) Upper L-band
**1563–1587&nbsp;MHz: [[Global Positioning System|GPS]] L1 band
**1593–1610&nbsp;MHz: [[GLONASS]] G1 band
**1559–1591&nbsp;MHz: [[Galileo (satellite navigation)|Galileo]] E1 band (overlapping with GPS L1<ref>{{Cite web|url=http://www.navipedia.net/index.php/GALILEO_Signal_Plan|title=Galileo Signal Plan|website=Navipedia.net|access-date=17 December 2017}}</ref>)
*1610–1660.5&nbsp;MHz: Mobile Satellite Service
**1610–1618: [[Globalstar]] uplink
**1618–1626.5&nbsp;MHz: [[Iridium satellite constellation|Iridium]] uplink and downlink<ref name=":0" />
**1626.5–1660.5&nbsp;MHz: [[SkyTerra|Skyterra]] uplink ([[Ligado Networks|Ligado]] is seeking FCC permission for terrestrial use<ref name=":0" />)
***1627.5–1637.5&nbsp;MHz: proposed Ligado uplink 1
***1646.5–1656.5&nbsp;MHz: proposed Ligado uplink 2
*1660.5–1668.4&nbsp;MHz: Radio astronomy observations. Transmitting is not permitted.
*1668.4–1670&nbsp;MHz: Radio astronomy observations. Weather balloons may utilize the spectrum after an advance notice.
*1670–1675&nbsp;MHz: [[Geostationary Operational Environmental Satellite]] transmissions to three [[Earth station]]s in [[Wallops Island, Virginia]]; [[Greenbelt, Maryland]] and [[Fairbanks, Alaska]]. Nationwide broadband service license in this range is held by a subsidiary of [[Crown Castle International Corp.]] who is trying to provide service in cooperation with [[Ligado Networks]].<ref>{{Cite web|url=http://wireless2.fcc.gov/UlsApp/ApplicationSearch/applAdmin.jsp?applID=9585875#attachments|title=Request for waiver and public interest statement|date=2016-06-04|website=FCC|access-date=2018-04-02}}</ref>
*1675–1695&nbsp;MHz: Meteorological federal users
*1695–1780&nbsp;MHz: [[Advanced Wireless Services|AWS]] mobile phone uplink (UL) operating band
**1695–1755&nbsp;MHz: AWS-3 blocks A1 and B1
**1710–1755&nbsp;MHz: AWS-1 blocks A, B, C, D, E, F
**1755–1780&nbsp;MHz: AWS-3 blocks G, H, I, J (various federal agencies transitioning by 2025<ref>{{Cite web|url=https://www.ntia.doc.gov/category/aws-3-transition|title=AWS-3 Transition|date=January 29, 2015|website=Ntia.doc.gov|access-date=17 December 2017}}</ref>)
*1780–1850&nbsp;MHz: exclusive federal use (Air Force satellite communications, Army's cellular-like communication system, other agencies)
*1850–1920&nbsp;MHz: PCS mobile phone—order is A, D, B, E, F, C, G, H blocks. A, B, C = 15&nbsp;MHz; D, E, F, G, H = 5&nbsp;MHz
*1920–1930&nbsp;MHz: [[Digital Enhanced Cordless Telecommunications|DECT]] [[cordless telephone]]
*1930–2000&nbsp;MHz: PCS base stations—order is A, D, B, E, F, C, G, H blocks. A, B, C = 15&nbsp;MHz; D, E, F, G, H = 5&nbsp;MHz
*2000–2020&nbsp;MHz: lower AWS-4 downlink (mobile broadband)
*2020–2110&nbsp;MHz: Cable antenna relay service, local television transmission service, TV broadcast auxiliary service, Earth exploration satellite service
*2110–2200&nbsp;MHz: [[Advanced Wireless Services|AWS]] mobile broadband downlink
**2110–2155&nbsp;MHz: AWS-1 blocks A, B, C, D, E, F
**2155–2180&nbsp;MHz: AWS-3 blocks G, H, I, J
**2180–2200&nbsp;MHz: upper AWS-4 
*2200–2290&nbsp;MHz: [[NASA]] satellite tracking, telemetry and control (space-to-Earth, space-to-space) 
*2290–2300&nbsp;MHz: [[NASA Deep Space Network]] 
*2300–2305&nbsp;MHz: Amateur radio ([[13-centimeter band|13&nbsp;cm band]], lower segment)
*2305–2315&nbsp;MHz: WCS mobile broadband service uplink blocks A and B
*2315–2320&nbsp;MHz: WCS block C (AT&T is pursuing [[smart grid]] deployment<ref name=":1">{{Cite web|url=https://www.fcc.gov/ecfs/file/download/011844558710/DA-17-78A1.pdf|title=AT&T Mobility Petition for Limited Waiver of Interim Performance Requirement for 2.3 GHz WCS C and D Block Licenses|website=Ecfsapi.fcc.gov|access-date=17 December 2017}}</ref>)
*2320–2345&nbsp;MHz: [[Satellite radio]]
*2345–2350&nbsp;MHz: WCS block D (AT&T is pursuing [[smart grid]] deployment<ref name=":1" />)
*2350–2360&nbsp;MHz: WCS mobile broadband service downlink blocks A and B
*2360–2390&nbsp;MHz: Aircraft landing and safety systems
*2390–2395&nbsp;MHz: Aircraft landing and safety systems (secondary deployment in a dozen of airports), amateur radio otherwise
*2395–2400&nbsp;MHz: Amateur radio ([[13-centimeter band|13&nbsp;cm band]], upper segment)
*2400–2483.5&nbsp;MHz: [[ISM band|ISM]], [[IEEE 802.11]], 802.11b, 802.11g, 802.11n wireless [[LAN]], [[IEEE 802.15.4-2006]], [[Bluetooth]], [[radio-controlled aircraft]] (strictly for [[spread spectrum]] use), [[microwave oven]]s, [[Zigbee]]
*2483.5–2495&nbsp;MHz: [[Globalstar]] downlink and terrestrial low power service suitable for TD-LTE small cells<ref>{{Cite web|url=https://www.globalstar.com/Globalstar/media/Globalstar/Downloads/Spectrum/GlobalstarOverviewPresentation.pdf|title=Globalstar Overview|date=2017|website=Globalstar.com|url-status=live|archive-url=https://web.archive.org/web/20170802042513/https://www.globalstar.com/en/ir/docs/GlobalstarOverviewPresentation.pdf|archive-date=August 2, 2017|access-date=17 December 2017}}</ref>
*2495–2690&nbsp;MHz: Educational broadcast and broadband radio Services<ref>{{Cite web|url=https://www.fcc.gov/wireless/bureau-divisions/broadband-division/broadband-radio-service-education-broadband-service|title=Broadband Radio Service & Education Broadband Service|website=The FCC|date=February 2016 |access-date=2018-06-05}}</ref>
*2690–2700&nbsp;MHz: Receive-only range for radio astronomy and space research