SpectrumWiki

Radio spectrum allocations

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

5.35 GHz (5,350,000,000 Hz)

U.S. Federal Government Allocations

5350 – 5460 MHz

EARTH EXPLORATION-SATELLITE (active) 5.448B

RADIOLOCATION G56

AERONAUTICAL RADIONAVIGATION 5.449

SPACE RESEARCH (active)

G130 US390

ITU Region 1 Allocations

5350 – 5460 MHz

EARTH EXPLORATION-SATELLITE (active) 5.448B

RADIOLOCATION 5.448D

AERONAUTICAL RADIONAVIGATION 5.449

SPACE RESEARCH (active) 5.448C

ITU Region 2 Allocations

5350 – 5460 MHz

EARTH EXPLORATION-SATELLITE (active) 5.448B

RADIOLOCATION 5.448D

AERONAUTICAL RADIONAVIGATION 5.449

SPACE RESEARCH (active) 5.448C

ITU Region 3 Allocations

5350 – 5460 MHz

EARTH EXPLORATION-SATELLITE (active) 5.448B

RADIOLOCATION 5.448D

AERONAUTICAL RADIONAVIGATION 5.449

SPACE RESEARCH (active) 5.448C

Footnotes

  • 5.448B   The Earth exploration-satellite service (active) operating in the band 5 350-5 570 MHz and space research service (active) operating in the band 5 460-5 570 MHz shall not cause harmful interference to the aeronautical radionavigation service in the band 5 350-5 460 MHz, the radionavigation service in the band 5 460-5 470 MHz and the maritime radionavigation service in the band 5 470-5 570 MHz. (WRC-03)

  • 5.448C   The space research service (active) operating in the band 5 350-5 460 MHz shall not cause harmful interference to nor claim protection from other services to which this band is allocated. (WRC-03)

  • 5.448D   In the frequency band 5 350-5 470 MHz, stations in the radiolocation service shall not cause harmful interference to, nor claim protection from, radar systems in the aeronautical radionavigation service operating in accordance with No. 5.449. (WRC-03)

  • 5.449   The use of the band 5 350-5 470 MHz by the aeronautical radionavigation service is limited to airborne radars and associated airborne beacons.

  • G56   Federal radiolocation in the bands 1215-1300, 2900-3100, 5350-5650 and 9300-9500 MHz is primarily for the military services; however, limited secondary use is permitted by other Federal agencies in support of experimentation and research programs. In addition, limited secondary use is permitted for survey operations in the band 2900-3100 MHz.

  • G130   Federal stations in the radiolocation service operating in the band 5350-5470 MHz, shall not cause harmful interference to, nor claim protection from, Federal stations in the aeronautical radionavigation service operating in accordance with ITU Radio Regulation No. 5.449.

  • US390   Federal stations in the space research service (active) operating in the band 5350-5460 MHz shall not cause harmful interference to, nor claim protection from, Federal and non-Federal stations in the aeronautical radionavigation service nor Federal stations in the radiolocation service.

Wiki entries

2019 World Radiocommunication Conference (WRC-19) Agenda Item 1.16

Proposed Use
5150–5925 MHz WRC-19 Agenda Item 1.16
1.16 to consider issues related to wireless access systems, including radio local area networks (WAS/RLAN), in the frequency bands between 5 150 MHz and 5 925 MHz, and take the appropriate regulatory actions, including additional spectrum allocations to the mobile service, in accordance with Resolution 239 [COM6/22] (WRC-15);

DOPRAD Radars

Current Use
5350–5460 MHz
DOPRAD pulse-Doppler radars operate in the 5350-5460 MHz band. They serve many functions related to meteorology, including the “weather Doppler radar” displays familiar to TV viewers.

RISAT-1 Indian Radar Imaging Satellite

Current Use
5.35 GHz RISAT-1 chirped radar
According to the Indian Space Research Organisation:

Radar Imaging Satellite (RISAT-1), a new class of remote sensing satellite distinct from the established IRS class, is being developed by Indian Space Research Organisation (ISRO) as its first satellite imaging mission using an active radar sensor system. RISAT-1 carries a multi-mode C-band Synthetic Aperture Radar (SAR) as the sole payload. The RISAT Mission is envisaged to augment the operational remote sensing programme in the country mainly enhancing agriculture and disaster support related applications.

RISAT-1 was launched on April 26th, 2012, into a polar sun synchronous orbit of 536 km (97.552 deg inclination) with the local time of equatorial crossing at 6:00 AM and 6:00 PM, as SAR does not need sun illumination for the target. The choice of this orbit gives advantage in terms of maximizing the power generation, with lesser complexities in solar panel tracking arrangements and power system management, besides simplifying the thermal management.