SpectrumWiki

Radio spectrum allocations

Look up a frequency or a range.

Examples: 88.5 MHz, 1350–1430 MHz, 2.4 GHz

431.999999 MHz (431,999,999 Hz)

Footnotes

  • 5.271   Additional allocation: in Belarus, China, India, Kyrgyzstan and Turkmenistan, the band 420-460 MHz is also allocated to the aeronautical radionavigation service (radio altimeters) on a secondary basis. (WRC 07)

  • 5.274   Alternative allocation: in Denmark, Norway, Sweden and Chad, the bands 430 432 MHz and 438 440 MHz are allocated to the fixed and mobile, except aeronautical mobile, services on a primary basis. (WRC 12)

  • 5.275   Additional allocation: in Croatia, Estonia, Finland, Libya, North Macedonia, Montenegro and Serbia, the frequency bands 430-432 MHz and 438-440 MHz are also allocated to the fixed and mobile, except aeronautical mobile, services on a primary basis. (WRC-19)

  • 5.276   Additional allocation: in Afghanistan, Algeria, Saudi Arabia, Bahrain, Bangladesh, Brunei Darussalam, Burkina Faso, Djibouti, Egypt, the United Arab Emirates, Ecuador, Eritrea, Ethiopia, Greece, Guinea, India, Indonesia, Iran (Islamic Republic of), Iraq, Israel, Italy, Jordan, Kenya, Kuwait, Libya, Malaysia, Niger, Nigeria, Oman, Pakistan, the Philippines, Qatar, the Syrian Arab Republic, the Dem. People’s Rep. of Korea, Singapore, Somalia, Sudan, Switzerland, Thailand, Togo, Turkey and Yemen, the frequency band 430-440 MHz is also allocated to the fixed service on a primary basis and the frequency bands 430-435 MHz and 438-440 MHz are also allocated, except in Ecuador, to the mobile, except aeronautical mobile, service on a primary basis. (WRC 15)

  • 5.277   Additional allocation: in Angola, Armenia, Azerbaijan, Belarus, Cameroon, Congo (Rep. of the), Djibouti, the Russian Federation, Georgia, Hungary, Israel, Kazakhstan, Mali, Uzbekistan, Poland, the Dem. Rep. of the Congo, Kyrgyzstan, Slovakia, Romania, Rwanda, Tajikistan, Chad, Turkmenistan and Ukraine, the frequency band 430-440 MHz is also allocated to the fixed service on a primary basis. (WRC 19)

  • 5.278   Different category of service: in Argentina, Brazil, Colombia, Costa Rica, Cuba, Guyana, Honduras, Panama, Paraguay, Uruguay and Venezuela, the allocation of the frequency band 430-440 MHz to the amateur service is on a primary basis (see No. 5.33). (WRC-19)

  • 5.279   Additional allocation: in Mexico, the frequency bands 430-435 MHz and 438-440 MHz are also allocated on a primary basis to the mobile, except aeronautical mobile, service, and on a secondary basis to the fixed service, subject to agreement obtained under No. 9.21. (WRC 19)

  • 5.282   In the bands 435-438 MHz, 1 260-1 270 MHz, 2 400-2 450 MHz, 3 400-3 410 MHz (in Regions 2 and 3 only) and 5 650-5 670 MHz, the amateur-satellite service may operate subject to not causing harmful interference to other services operating in accordance with the Table (see No. 5.43). Administrations authorizing such use shall ensure that any harmful interference caused by emissions from a station in the amateur-satellite service is immediately eliminated in accordance with the provisions of No. 25.11. The use of the bands 1 260-1 270 MHz and 5 650-5 670 MHz by the amateur-satellite service is limited to the Earth-to-space direction.

  • 5.286   The band 449.75-450.25 MHz may be used for the space operation service (Earth-to-space) and the space research service (Earth-to-space), subject to agreement obtained under No. 9.21.

  • G2   In the bands 216.965-216.995 MHz, 420-450 MHz (except as provided for in G129), 890-902 MHz, 928-942 MHz, 1300-1390 MHz, 2310-2390 MHz, 2417-2450 MHz, 2700-2900 MHz, 3300-3500 MHz, 5650-5925 MHz, and 9000-9200 MHz, use of the Federal radiolocation service is restricted to the military services.

  • G8   Low power Federal radio control operations are permitted in the band 420-450 MHz.

  • G129   Federal wind profilers are authorized to operate on a primary basis in the radiolocation service in the frequency band 448-450 MHz with an authorized bandwidth of no more than 2 MHz centered on 449 MHz, subject to the following conditions: 1) wind profiler locations must be pre-coordinated with the military services to protect fixed military radars; and 2) wind profiler operations shall not cause harmful interference to, nor claim protection from, military mobile radiolocation stations that are engaged in critical national defense operations.

  • US64   (a) In the band 401-406 MHz, the mobile, except aeronautical mobile, service is allocated on a secondary basis and is limited to, with the exception of military tactical mobile stations, Medical Device Radiocommunication Service (MedRadio) operations. MedRadio stations are authorized by rule on the condition that harmful interference is not caused to stations in the meteorological aids, meteorological-satellite, and Earth exploration-satellite services, and that MedRadio stations accept interference from stations in the meteorological aids, meteorological-satellite, and Earth exploration-satellite services.

        (b) The bands 413-419 MHz, 426-432 MHz, 438-444 MHz, and 451-457 MHz are also allocated on a secondary basis to the mobile, except aeronautical mobile, service. The use of this allocation is limited to MedRadio operations. MedRadio stations are authorized by rule and operate in accordance with 47 CFR part 95.

  • US87   The band 449.75-450.25 MHz may be used by Federal and non-Federal stations for space telecommand (Earth-to-space) at specific locations, subject to such conditions as may be applied on a case-by-case basis. Operators shall take all practical steps to keep the carrier frequency close to 450 MHz.

  • US230   The bands 422.1875-425.4875 MHz and 427.1875-429.9875 MHz are allocated to the land mobile service on a primary basis for non-Federal use within 80.5 kilometers (50 miles) of Cleveland, OH (41° 29' 51.2'' N, 81° 41' 49.5'' W) and Detroit, MI (42° 19' 48.1'' N, 83° 02' 56.7'' W). The bands 423.8125-425.4875 MHz and 428.8125-429.9875 MHz are allocated to the land mobile service on a primary basis for non-Federal use within 80.5 kilometers of Buffalo, NY (42° 52' 52.2'' N, 78° 52' 20.1'' W).

  • US269   In the band 420-450 MHz, the following provisions shall apply to the non-Federal radiolocation service:

        (a) Pulse-ranging radiolocation systems may be authorized for use along the shoreline of the conterminous United States and Alaska.

        (b) In the sub-band 420-435 MHz, spread spectrum radiolocation systems may be authorized within the conterminous United States and Alaska.

        (c) All stations operating in accordance with this provision shall be secondary to stations operating in accordance with the Table of Frequency Allocations.

        (d) Authorizations shall be granted on a case-by-case basis; however, operations proposed to be located within the areas listed in paragraph (a) of US270 should not expect to be accommodated.

  • US270   In the band 420-450 MHz, the following provisions shall apply to the amateur service:

        (a) The peak envelope power of an amateur station shall not exceed 50 watts in the following areas, unless expressly authorized by the FCC after mutual agreement, on a case-by-case basis, between the Regional Director of the applicable field office and the military area frequency coordinator at the applicable military base. For areas (5) through (7), the appropriate military coordinator is located at Peterson AFB, CO.

            (1) Arizona, Florida and New Mexico.

            (2) Within those portions of California and Nevada that are south of latitude 37° 10' N.

            (3) Within that portion of Texas that is west of longitude 104° W.

            (4) Within 322 km of Eglin AFB, FL (30° 30' N, 86° 30' W); Patrick AFB, FL (28° 21' N, 80° 43' W); and the Pacific Missile Test Center, Point Mugu, CA (34° 09' N, 119° 11' W).

            (5) Within 240 km of Beale AFB, CA (39° 08' N, 121° 26' W).

            (6) Within 200 km of Goodfellow AFB, TX (31° 25' N, 100° 24' W) and Warner Robins AFB, GA (32° 38' N, 83° 35' W).

            (7) Within 160 km of Clear AFS, AK (64° 17' N, 149° 10' W); Concrete, ND (48° 43' N, 97° 54' W); and Otis AFB, MA (41° 45' N, 70° 32' W).

        (b) In the sub-band 420-430 MHz, the amateur service is not allocated north of Line A (def. § 2.1).

  • US397   In the band 432-438 MHz, the Earth exploration-satellite service (active) is allocated on a secondary basis for Federal use. Stations in the Earth exploration-satellite service (active) shall not be operated within line-of-sight of the United States except for the purpose of short duration pre-operational testing. Operations under this allocation shall not cause harmful interference to, nor claim protection from, any other services allocated in the band 432-438 MHz in the United States, including secondary services and the amateur-satellite service.

Wiki entries

Amateur Radio (70 cm Band)

Current Use
420–450 MHz Amateur radio 440 band (aka 70 cm band)
All or part of this band is allocated worldwide on a seconday basis to the amateur and amateur-satellite services. The band is often referred to as either the 440 band or the 70 cm band.

In the United States, the entire range 420 - 450 MHz is allocated for amateur radio. According to the ARRL, the following band plan is used:

Frequency (MHz):Use
420-426: ATV repeater or simplex with 421.25 MHz video carrier (NTSC)
426-432: ATV simplex with 427.25 MHz video carrier (NTSC)
432-432.07: Earth-Moon-Earth
432.07-432.10: Weak-signal CW
432.1: 70-cm calling frequency
432.1-432.3: Mixed-mode and weak-signal work
432.3-432.4: Propagation beacons
432.4-433.0: Mixed-mode and weak-signal work
433-435: Auxiliary/repeater links
435-438: Satellite only (internationally)
438-444: ATV repeater input (439.25 MHz video carrier)
442-445: Repeater inputs and outputs (local option)
445-447: Shared auxiliary & control links; repeaters and simplex
446.0: National simplex FM frequency
447-450: Repeater inputs and outputs (local option)

PAVE PAWS

Current Use
420–450 MHz PAVE PAWS radar
According to the U.S. Space Force:

"PAVE Phased Array Warning System (PAWS) Radars are maintained by the U.S. Space Force. These radars are capable of detecting Submarine Launched Ballistic Missile (SLBM) attacks and conducting general space surveillance and satellite tracking. PAVE is a military program identification code.

"The PAVE PAWS are ground based phased array radars located on the west and east coasts of the U.S.

"Missile warning and attack characterization data is sent to the U.S. Missile Warning and Space Control Centers, the U.S. National Military Command Center and U.S. Strategic Command. Satellite tracking data is sent to the Combined Space Operations Center (CSpOC) for processing."

PAVE PAWS is a high-power phased array radar operated by the U.S. military to detect intercontinental ballistic missiles. There are presently (2024) three operating PAVE PAWS sites at Clear, AK, Cape Cod, MA, and Beale AFB, CA. The PAVE PAWS radar is also known by its government designator, AN/FPS-115.

According to the spec sheet at the fas.org Web site, PAVE PAWS has a peak/average transmit power of 582/146 kW, antenna gain of 38 dBi, and an operational range of 3,000 nm (about 5500 km).

PAVE PAWS radars are also capable of detecting echoes off of Earth-orbiting space debris.

ReconRobotics Surveillance Robot Waiver

Current Use
420–450 MHz ReconRobotics surveillance robot
Under a waiver granted to ReconRobotics, Inc., the company's products can use the 430-436, 436-442, and 442-448 MHz segments for analog video and audio transmission. Units must be licensed under Part 90 of the FCC rules. Eligibility is limited to state and local police and firefighters eligible for licensing under Section 90.20(a)(1), and security personnel in critical infrastructure industries.

FCC Narrowbanding Mandate

Current Use
421–512 MHz FCC Narrowband Mandate for PLMR and Industrial/Business Radio Pool systems
The FCC has mandated that all Private Land Mobile Radio (PLMR) and Industrial/Business Radio Pool systems operating in the 150-174 and 421-512 MHz bands must operate using a channel bandwidth of no more than 12.5 kHz, or "a technology that achieves the narrowband equivalent of one channel per 12.5 kHz of channel bandwidth (voice) or 4800 bits per second per 6.25 kHz (data) if the bandwidth for transmissions specified in the modification application is greater than 12.5 kHz."

The deadline for narrowbanding is January 1, 2013. Prior to this date, systems in these bands were allowed up to 25 kHz channel bandwidth.

Narrowbanding of the 470-512 MHz portion ("T-band") has been put on hold by the FCC. Congressional action in the Middle Class Tax Relief and Jobs Creation Act mandated that this sub-band be cleared of all mobile systems in light of the TV band incentive auction and the eventual creation of the nationwide public safety broadband network.

Medical Micropower Networks (MMNs) in 413-457 MHz

Current Use
426–432 MHz MMN MedRadio Transmitters
Medical Micropower Network (MMN): An ultra-low power wideband network consisting of a MedRadio programmer/control transmitter and medical implant transmitters, all of which transmit or receive non-voice data or related device control commands for the purpose of facilitating functional electric stimulation, a technique using electric currents to activate and monitor nerves and muscles. [FCC R&O in ET Docket No. 09-36 at Para. 19]

LeoLabs Low Earth Orbit Tracking Radars

Current Use
430–449 MHz LeoLabs UHF Low Earth Orbit Tracking radar
LeoLabs operates S-band radars used for tracking Low Earth Orbit (LEO) satellites under an experimental license from the FCC (W02XXL). The U.S. sites are:

Kermit (WINKLER), TX - NL 31-57-53; WL 103-14-01; MOBILE: Kermit. TX, within 0.2 km, centered around NL 31-57-53; WL 103-14-01

Pearce (COCHISE), AZ - NL 31-52-16; WL 109-30-20; MOBILE: Pearce, AZ, within 0.1 km, centered around NL 31-52-16; WL 109-30-20

Magdalena (SOCORRO), NM - NL 33-43-32; WL 107-11-35; MOBILE: Magdalena, NM, within 0.2 km, centered around NL 33-43-32; WL 107-11-35

Graham Pass Rd, CA - NL 33-36-22; WL 115-02-29; MOBILE: Graham Pass Rd, CA, within 0.1 km, centered around NL 33-36-22; WL 115-02-29

LeoLabs also has experimental licenses (WO2XME and WN2XAM) for UHF radars at Pearce AZ and Kermit TX:

Pearce (COCHISE), AZ - NL 31-52-15; WL 109-30-22

Kermit (WINKLER), TX - NL 31-57-52; WL 103-14-01

LeoLabs also has S-band and UHF experimental licenses at its facilities in Menlo Park CA, and is involved in LEO tracking radars in other areas/countries around the world (Western Australia, Azores, Costa Rica, New Zealand, Poker Flat AK, and Argentina).