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Allocations

Intro to Allocations

U.S. Non-Federal-Government Allocations

9.3 - 9.5 GHz
RADIONAVIGATION US475
Meteorological aids
Earth exploration-satellite (active)
Radiolocation
Space research (active)

5.427 5.474 US67 US71 US476A

FCC Rule Parts:
Maritime (80)
Aviation (87)
Private Land Mobile (90)

U.S. Federal Government Allocations

9.3 - 9.5 GHz
EARTH EXPLORATION-SATELLITE (active)
RADIOLOCATION G56
RADIONAVIGATION US475
SPACE RESEARCH (active)
Meteorological aids

5.427 5.474 5.475A 5.475B US67 US71 US476A

ITU Region 1 Allocations

9.3 - 9.5 GHz
EARTH EXPLORATION-SATELLITE (active)
RADIOLOCATION
RADIONAVIGATION 5.475
SPACE RESEARCH (active)

5.427 5.474 5.475 5.475A 5.475B 5.476A

ITU Region 2 Allocations

9.3 - 9.5 GHz
EARTH EXPLORATION-SATELLITE (active)
RADIOLOCATION
RADIONAVIGATION 5.475
SPACE RESEARCH (active)

5.427 5.474 5.475 5.475A 5.475B 5.476A

ITU Region 3 Allocations

9.3 - 9.5 GHz
EARTH EXPLORATION-SATELLITE (active)
RADIOLOCATION
RADIONAVIGATION 5.475
SPACE RESEARCH (active)

5.427 5.474 5.475 5.475A 5.475B 5.476A

SpectrumWiki

IEEE 802.15.4 HRP UWB

Possible extension of EESS (active) allocation (WRC-15 Agenda Item 1.12)

Footnotes

5.427 In the bands 2900-3100 MHz and 9300-9500 MHz, the response from radar transponders shall not be capable of being confused with the response from radar beacons (racons) and shall not cause interference to ship or aeronautical radars in the radionavigation service, having regard, however, to No. 4.9.

5.474 In the band 9200-9500 MHz, search and rescue transponders (SART) may be used, having due regard to the appropriate ITU-R Recommendation (see also Article 31).

5.475 The use of the band 9300-9500 MHz by the aeronautical radionavigation service is limited to airborne weather radars and ground-based radars. In addition, ground-based radar beacons in the aeronautical radionavigation service are permitted in the band 9300-9320 MHz on condition that harmful interference is not caused to the maritime radionavigation service. (WRC-07)

5.475A The use of the band 9300-9500 MHz by the Earth exploration-satellite service (active) and the space research service (active) is limited to systems requiring necessary bandwidth greater than 300 MHz that cannot be fully accommodated within the 9500-9800 MHz band. (WRC-07)

5.475B In the band 9300-9500 MHz, stations operating in the radiolocation service shall not cause harmful interference to, nor claim protection from, radars operating in the radionavigation service in conformity with the Radio Regulations. Ground based radars used for meteorological purposes have priority over other radiolocation uses. (WRC-07)

5.476A In the band 9300-9800 MHz, stations in the Earth exploration-satellite service (active) and space research service (active) shall not cause harmful interference to, nor claim protection from, stations of the radionavigation and radiolocation services. (WRC-07)

US67 The use of the band 9300-9500 MHz by the meteorological aids service is limited to ground-based radars. Radiolocation installations will be coordinated with the meteorological aids service and, insofar as practicable, will be adjusted to meet the requirements of the meteorological aids service.

US71 In the band 9300-9320 MHz, low-powered maritime radionavigation stations shall be protected from harmful interference caused by the operation of land-based equipment.

Could not find US475

Could not find US476

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.

SpectrumWiki

IEEE 802.15.4 HRP UWB

High pulse repetition frequency ultra-wideband (HPR UWB) is one of the physical layers defined for low data rate personal area network (LR-WPAN) communications in the IEEE 802.15.4 standard.

According to the FiRa Consortium:

"In challenging environments, such as parking structures, hospitals, airports and high density venues, ultra-wideband (UWB) technology outperforms other technologies in terms of accuracy, power consumption, robustness in wireless connectivity, and security, by a wide margin.

"UWB securely determines the relative position of peer devices with a very high degree of accuracy and can operate with line of sight at up to 200 meters. In contrast to narrow band wireless technologies, the use of wide bandwidth means UWB provides very stable connectivity, with little to no interference and offers highly precise positioning, even in congested multi-path signal environments.

"By calculating precise location, fine ranging based on UWB is a more secure approach to closing and opening locks, whether those locks are installed on a car door, a warehouse entryway, a conference room, or your front door."

Frequencies
Frequency	Bandwidth	Use	Service	Table
499.2 MHz	499.2 MHz	802.15.4 HRP UWB Channel 0	-	-
3494.4 MHz	499.2 MHz	802.15.4 HRP UWB Channel 1	-	-
3993.6 MHz	499.2 MHz	802.15.4 HRP UWB Channel 2	-	-
3993.6 MHz	1.3312 GHz	802.15.4 HRP UWB Channel 4	-	-
4492.8 MHz	499.2 MHz	802.15.4 HRP UWB Channel 3	-	-
6489.6 MHz	1.0816 GHz	802.15.4 HRP UWB Channel 7	-	-
6489.6 MHz	499.2 MHz	802.15.4 HRP UWB Channel 5	-	-
6988.8 MHz	499.2 MHz	802.15.4 HRP UWB Channel 6	-	-
7488 MHz	499.2 MHz	802.15.4 HRP UWB Channel 8	-	-
7987.2 MHz	1.3312 GHz	802.15.4 HRP UWB Channel 11	-	-
7987.2 MHz	499.2 MHz	802.15.4 HRP UWB Channel 9	-	-
8486.4 MHz	499.2 MHz	802.15.4 HRP UWB Channel 10	-	-
8985.6 MHz	499.2 MHz	802.15.4 HRP UWB Channel 12	-	-
9484.8 MHz	1.35497 GHz	802.15.4 HRP UWB Channel 15	-	-
9484.8 MHz	499.2 MHz	802.15.4 HRP UWB Channel 13	-	-
9984 MHz	499.2 MHz	802.15.4 HRP UWB Channel 14	-	-

External Links:

IEEE 802.15.4 standard (IEEE)

IEEE 802.15.4 (Wikipedia)

Associated Files:

802.15.4 HRP UWB PHY band allocation

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Possible extension of EESS (active) allocation (WRC-15 Agenda Item 1.12)

ITU World Radiocommunication Conference 2015 Agenda Item 1.12:

"To consider an extension of the current worldwide allocation to the Earth exploration-satellite service (active) in the frequency band 9300-9900 MHz by up to 600 MHz within the frequency bands 8700-9300 and/or 9900-10500 MHz, in accordance with Resolution 651 (WRC-12)"

Frequency Bands
Band	Use	Service	Table
8700 - 9300 MHz	Possible extension of EESS (active) allocation (WRC-15 Agenda Item 1.12)	Earth Exploration-satellite	-
9900 - 10500 MHz	Possible extension of EESS (active) allocation (WRC-15 Agenda Item 1.12)	Earth Exploration-satellite	-

External Links:

ITU-R Preparatory Studies for WRC-15

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Engineering Data

	Lower Frequency	Center Frequency	Upper Frequency
Frequency	9.3 GHz	9.4 GHz	9.5 GHz
Wavelength	3.2 cm	3.2 cm	3.2 cm
Band designator(s)	SHF; X-band (IEEE)	SHF; X-band (IEEE)	SHF; X-band (IEEE)
Isotropic collecting area	0.8 cm²	0.8 cm²	0.8 cm²
Free space loss (1 m)	51.8 dB	51.9 dB	52.0 dB
Free space loss (1 km)	111.8 dB	111.9 dB	112.0 dB
Free space loss (10 km)	131.8 dB	131.9 dB	132.0 dB
Free space loss (100 km)	151.8 dB	151.9 dB	152.0 dB
Free space loss (1000 km)	171.8 dB	171.9 dB	172.0 dB
Free space loss (35,786 km = GEO orbit)	202.9 dB	203.0 dB	203.1 dB
Free space loss (378,370 km = Moon)	223.4 dB	223.5 dB	223.6 dB