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Allocations

Intro to Allocations

U.S. Non-Federal-Government Allocations

10 - 10.45 GHz
Amateur
Radiolocation US108

5.479 US128 NG50

FCC Rule Parts:
Private Land Mobile (90)
Amateur Radio (97)

U.S. Federal Government Allocations

10 - 10.5 GHz
RADIOLOCATION US108 US108

5.479 US128 NG50

ITU Region 1 Allocations

10.4 - 10.45 GHz
FIXED
MOBILE
RADIOLOCATION
Amateur

ITU Region 2 Allocations

10.4 - 10.45 GHz
RADIOLOCATION
Amateur

5.479 5.480 US128 NG50

ITU Region 3 Allocations

10.4 - 10.45 GHz
FIXED
MOBILE
RADIOLOCATION
Amateur

SpectrumWiki

Band Uses (10 - 10.5 GHz)

Possible new FSS allocations, 2015 World Radiocommunication Conference (WRC-15) Agenda Item 1.6

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

Footnotes

5.479 The band 9 975-10 025 MHz is also allocated to the meteorological-satellite service on a secondary basis for use by weather radars.

5.480 Additional allocation: in Argentina, Brazil, Chile, Cuba, El Salvador, Ecuador, Guatemala, Honduras, Paraguay, the overseas countries and territories within the Kingdom of the Netherlands in Region 2, Peru and Uruguay, the frequency band 10 10.45 GHz is also allocated to the fixed and mobile services on a primary basis. In Colombia, Costa Rica, Mexico and Venezuela, the frequency band 10 10.45 GHz is also allocated to the fixed service on a primary basis. (WRC 19)

US108   In the band 10-10.5 GHz, survey operations, using transmitters with a peak power not to exceed five watts into the antenna, may be authorized for Federal and non-Federal use on a secondary basis to other Federal radiolocation operations.

US128   In the band 10-10.5 GHz, pulsed emissions are prohibited, except for weather radars on board meteorological satellites in the sub-band 10-10.025 GHz. The amateur service, the amateur-satellite service, and the non-Federal radiolocation service, which shall not cause harmful interference to the Federal radiolocation service, are the only non-Federal services permitted in this band. The non-Federal radiolocation service is limited to survey operations as specified in footnote US108.

NG50  In the band 10-10.5 GHz, non-Federal stations in the radiolocation service shall not cause harmful interference to the amateur service; and in the sub-band 10.45-10.5 GHz, these stations shall not cause harmful interference to the amateur-satellite service.

G32   Except for weather radars on meteorological satellites in the band 9.975-10.025 GHz and for Federal survey operations (see footnote US108), Federal radiolocation in the band 10-10.5 GHz is limited to the military services.

SpectrumWiki

Band Uses (10 - 10.5 GHz)

Possible new FSS allocations, 2015 World Radiocommunication Conference (WRC-15) Agenda Item 1.6

1.6 to consider possible additional primary allocations:

1.6.1 to the fixed-satellite service (Earth-to-space and space-to Earth) of 250 MHz in the range between 10 GHz and 17 GHz in Region 1

1.6.2 to the fixed-satellite service (Earth-to-space) of 250 MHz in Region 2 and 300 MHz in Region 3 within the range 13-17 GHz;

and review the regulatory provisions on the current allocations to the fixed-satellite service within each range, taking into account the results of ITU-R studies, in accordance with Resolutions COM6/4 (WRC-12) and COM6/5 (WRC-12), respectively

Frequency Bands
Band	Use	Service	Table
10000 MHz - 17 GHz	Agenda Item 1.6.1 (Region 1)	Fixed-satellite	-
13 - 17 GHz	Agenda Item 1.6.2 (Regions 2 & 3)	Fixed-satellite	-

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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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Related Documents, Links, and Multimedia:

FCC Proceeding (1)

Coordinated Sharing Coalition petition for point-to-point links in the 10-10.5 GHz band

Engineering Data

	Lower Frequency	Center Frequency	Upper Frequency
Frequency	10 GHz	10.25 GHz	10.5 GHz
Wavelength	3.0 cm	2.9 cm	2.9 cm
Band designator(s)	SHF; X-band (IEEE)	SHF; X-band (IEEE)	SHF; X-band (IEEE)
Isotropic collecting area	0.7 cm²	0.7 cm²	0.6 cm²
Free space loss (1 m)	52.8 dB	52.7 dB	52.8 dB
Free space loss (1 km)	112.8 dB	112.7 dB	112.8 dB
Free space loss (10 km)	132.8 dB	132.7 dB	132.8 dB
Free space loss (100 km)	152.8 dB	152.7 dB	152.8 dB
Free space loss (1000 km)	172.8 dB	172.7 dB	172.8 dB
Free space loss (35,786 km = GEO orbit)	203.9 dB	203.7 dB	203.9 dB
Free space loss (378,370 km = Moon)	224.3 dB	224.2 dB	224.4 dB