Ku-Band (12.4 - 15.4 GHz) SPECTRUM SUMMARY

 

Frequency (GHz):      12.2 - 12.7

 

Allocated Use:              Fixed and Broadcasting Satellite           

 

Remarks:                      Additional allocation: In Region 1, the band 11.7-12.5 GHz, in Region 2, the band 12.2- 12.7 GHz and, in Region 3, the band 11.7-12.2 GHz, are also allocated to the fixed-satellite service (space-to-Earth) on a primary basis, limited to non-geostationary systems and subject to application of the provisions of No. 9.12 for coordination with other non-geostationary-satellite systems in the fixed-satellite service. Non-geostationary-satellite systems in the fixed-satellite service shall not claim protection from geostationary-satellite networks in the broadcasting-satellite service operating in accordance with the Radio Regulations, irrespective of the dates of receipt by the Bureau of the complete coordination or notification information, as appropriate, for the non-geostationary-satellite systems in the fixed-satellite service and of the complete coordination or notification information, as appropriate, for the geostationary-satellite networks, and No. 5.43A does not apply. Non-geostationary-satellite systems in the fixed-satellite service in the above bands shall be operated in such a way that any unacceptable interference that may occur during their operation shall be rapidly eliminated.

The use of the band 11.7-12.2 GHz by geostationary-satellite networks in the fixed-satellite service in Region 2 is subject to application of the provisions of No. 9.14 for coordination with stations of terrestrial services in Regions 1, 2 and 3. For the use of the band 12.2-12.7 GHz by the broadcasting-satellite service in Region 2, see Appendix 30.

 

Frequency (GHz):      12.7 - 12.75

 

Allocated Use:              Fixed Microwave, Cable TV Relay, Fixed-Satellite (Earth-to-Space) and Mobile

 

Remarks:                      In the bands 2025-2110 MHz, 6875-7125 MHz, and 12.7-13.25 GHz, television translator relay stations may be authorized to use frequencies on a secondary basis to other stations in the Television Broadcast Auxiliary Service that are operating in accordance with the Table of Frequency Allocations.

 

 

 

 

Frequency (GHz):      12.75 - 13.25

 

Allocated Use:              Fixed Microwave, Cable TV Relay, Fixed-Satellite (Earth-to-Space) and Mobile

 

Remarks:                      The band 13.15-13.20 GHz is reserved for television pickup and CARS pickup stations inside a 50 km radius of the 100 television markets delineated in Section 76.51. Outside a 50 km radius of

the 100 television markets delineated in Section 76.51, television pickup stations, CARS stations and NGSO FSS gateway earth stations shall operate on a primary co-equal basis. The band 13.20-13.2125 GHz is reserved for television pickup stations on a primary basis and CARS pickup stations on a secondary basis inside a 50 km radius of the 100 television markets delineated in Section 76.51. Outside a 50 km radius of the 100 markets delineated in Section 76.51, television pickup stations and NGSO

FSS gateway earth stations shall operate on a co-primary basis, CARS stations shall operate on a secondary basis. Fixed television auxiliary stations licensed pursuant to applications accepted for filing before September 1, 1979, may continue operation on channels in the 13.15-13.25 GHz band, subject to periodic license renewals. NGSO FSS gateway uplink transmissions in the 13.15-13.2125 GHz segment shall be limited to a maximum EIRP of 3.2 dBW towards 0 degrees on the radio horizon. The above provisions shall not apply to GSO FSS operations in the 12.75-13.25 GHz band.

The band 12.75-13.25 GHz is also allocated to the space research (deep space) (space-to-Earth) service for reception only at Goldstone, California. 35° 18' N. 116° 54' W.

 

Frequency (GHz):      13.24 - 13.4

 

Allocated Use:              Earth Exploration Satellite (active), Aeronautical Radionavigation and Space Research (active)

 

Remarks:                      The use of the band 13.25-13.4 GHz by the aeronautical radionavigation service is limited to Doppler navigation aids.

The Earth exploration-satellite (active) and space research (active) services operating in the band 13.25-13.4 GHz shall not cause harmful interference to, or constrain the use and development of, the aeronautical radionavigation service.

 

 

 

 

 

Frequency (GHz):      13.4 - 13.75

 

Allocated Use:              Earth Exploration Satellite (active), Radiolocation, Space Research and Standard Frequency and Time Signal Satellite (Earth-to-Space)

 

Remarks:                      The allocation of the band 13.4-13.75 GHz to the space research service on a primary basis is limited to active spaceborne sensors. Other uses of the band by the space research service are on a secondary basis.

In the band 13.4-13.75 GHz, the Earth exploration-satellite (active) and space research (active) services shall not cause harmful interference to, or constrain the use and development of, the

radiolocation service.

 

Frequency (GHz):      13.75 - 14.0

 

Allocated Use:              Radiolocation, Space Research, Fixed Satellite (Earth-to-Space) and Standard Frequency and Time Signal Satellite (Earth-to-Space),

 

Remarks:                      In the band 13.75-14 GHz, geostationary space stations in the space research service for which information for advance publication has been received by the Bureau prior to 31 January 1992 shall operate on an equal basis with stations in the fixed-satellite service; after that date, new geosta-tionary space stations in the space research service will operate on a secondary basis. Until those geo-stationary space stations in the space research service for which information for advance publication has been received by the Bureau prior to 31 January 1992 cease to operate in this band: – in the band 13.77-13.78 GHz, the e.i.r.p. density of emissions from any earth station in the fixed-satellite service operating with a space station in geostationary-satellite orbit shall not exceed: i) 4.7D + 28 dB(W/40 kHz), where D is the fixed-satellite service earth station antenna diameter (m) for antenna diameters equal to or greater than 1.2 m and less than 4.5 m; ii) 49.2 + 20 log(D/4.5) dB(W/40 kHz), where D is the fixed-satellite service earth station antenna diameter (m) for antenna diameters equal to or greater than 4.5 m and less than 31.9 m; iii) 66.2 dB(W/40 kHz) for any fixed-satellite service earth station for antenna diameters (m) equal to or greater than 31.9 m; iv) 56.2 dB(W/4 kHz) for narrow-band (less than 40 kHz of necessary bandwidth) fixed-satellite service earth station emissions from any fixed-satellite service earth station having an antenna diameter of 4.5 m or greater; the e.i.r.p. density of emissions from any earth station in the fixed-satellite service operating with a space station in non-geostationary-satellite orbit shall not exceed 51 dBW in the 6 MHz band from 13.772 to 13.778 GHz. Automatic power control may be used to increase the e.i.r.p. density in these frequency ranges to compensate for rain attenuation, to the extent that the power flux-density at the fixed-satellite service space station does not exceed the value resulting from use by an earth station of an e.i.r.p. meeting the above limits in clear-sky conditions.

In the band 13.75-13.80 GHz, earth stations in the fixed-satellite service shall be coordinated on a case-by-case basis through the frequency assignment subcommittee in order to minimize harmful interference to the Tracking and Data Relay Satellite System’s forward space-to-space link (TDRSS forward link-to-LEO).

In the band 13.75-14 GHz, an earth station in the fixed-satellite service shall have a minimum antenna diameter of 4.5 m and the e.i.r.p. of any emission should be at least 68 dBW and should not

exceed 85 dBW. In addition the e.i.r.p., averaged over one second, radiated by a station in the radiolocation service shall not exceed 59 dBW. Receiving space stations in the fixed-satellite service shall not claim protection from radiolocation transmitting stations operating in accordance with the United States Table of Frequency Allocations.

In the band 13.75-14 GHz, geostationary space stations in the space research service for which information for advance publication has been received by the ITU Radiocommunication Bureau (Bureau) prior to 31 January 1992 shall operate on an equal basis with stations in the fixed-satellite service; after that date, new geostationary space stations in the space research service will operate on a secondary basis. Until those geostationary space stations in the space research service for which information for advance publication has been received by the Bureau prior to 31 January 1992 cease to operate in this band: a) the e.i.r.p. density of emissions from any earth station in the fixed-satellite service operating with a space station in geostationary-satellite orbit shall not exceed 71 dBW in any 6 MHz band from 13.77 to 13.78 GHz; b) the e.i.r.p. density of emissions from any earth station in the fixed-satellite service operating with a space station in non-geostationary-satellite orbit shall not exceed 51 dBW in any 6 MHz band from 13.77 to 13.78 GHz. Automatic power control may be used to increase the e.i.r.p. density in any 6 MHz band in these frequency ranges to compensate for rain attenuation, to the extent that the power flux-density at the fixed-satellite service space station does not exceed the value resulting from use by an earth station of an e.i.r.p. of 71 dBW or 51 dBW, as appropriate, in any 6 MHz band in clear-sky conditions.

 

 

 

Frequency (GHz):      14.0 - 14.2

 

Allocated Use:              Radionavigation, Space Research, Fixed Satellite (Earth-to-Space) and Mobile Satellite (Earth-to-Space)

 

Remarks:                      In the band 14.0-14.2 GHz stations in the radionavigation service shall operate on a secondary basis to the fixed-satellite service.

 

 

Frequency (GHz):      14.2 - 14.4

 

Allocated Use:              Fixed Satellite (Earth-to-Space), Mobile Satellite (Earth-to-Space), and Mobile except aeronautical mobile.

 

Remarks:         

 

Frequency (GHz):      14.4 - 14.5

 

Allocated Use:              Fixed, Mobile, Fixed Satellite (Earth-to-Space) and Mobile Satellite (Earth-to-Space)

 

Remarks:                      Radio astronomy observations of the formaldehyde line frequencies 4825-4835 MHz and 14.470–14.500 GHz may be made at certain radio astronomy observatories as indicated below:  National Astronomy and Ionosphere Center, Arecibo, Puerto Rico.  National Radio Astronomy Observatory, Green Bank, W. Va.  National Radio Astronomy Observatory, Socorro, New Mexico.  Hat Creek Observatory (U of Calif.), Hat Creek, Cal.  Haystack Radio Observatory (MIT-Lincoln Lab), Tyngsboro, Mass. Owens Valley Radio Observatory (Cal. Tech.), Big Pine, Cal.  Five College Radio Astronomy Observatory, Quabbin Reservoir (near Amherst), Massachusetts.

                                    Every practicable effort will be made to avoid the assignment of frequencies to stations in the fixed or mobile services in these bands. Should such assignments result in harmful interference to these observations, the situation will be remedied to the extent practicable.

In making assignments to stations of other services to which the bands: 13360-13410 kHz 22.01-22.21 GHz* 111.8-114.25 GHz

25550-25670 kHz 22.21-22.5 GHz 128.33-128.59 GHz* 37.5-38.25 MHz 22.81-22.86 GHz* 129.23-129.49 GHz* 322-328.6 MHz* 23.07-23.12 GHz* 130-134 GHz 1330-1400 MHz* 31.2-31.3 GHz 136-148.5 GHz 1610.6-1613.8 MHz* 36.43-36.5 GHz* 151.5-158.5 GHz 1660-1660.5 MHz* 42.5-43.5 GHz 168.59-168.93 GHz* 1668.4-1670 MHz* 42.77-43.17 GHz* 171.11-171.45 GHz* 3260-3267 MHz* 43.07-43.17 GHz* 172.31-172.65 GHz* 3332-3339 MHz* 43.37-43.47 GHz* 173.52-173.85 GHz* 3345.8-3352.5 MHz* 48.94-49.04 GHz* 195.75-196.15 GHz* 4825-4835 MHz* 76-86 GHz 209-226 GHz 4950-4990 MHz 92-94 GHz 241-250 GHz  6650-6675.2 MHz* 94.1-100 GHz 252-275 GHz 14.47-14.5 GHz* 102-109.5 GHz are allocated (*indicates radio astronomy use for spectral line observations), all practicable steps shall be taken to protect the radio astronomy service from harmful interference. Emissions from spaceborne or airborne stations can be particularly serious sources of interference to the radio astronomy service (see Nos. 4.5 and 4.6 and Article 29 of the ITU Radio Regulations).

 

Frequency (GHz):      14.5 - 15.35

 

Allocated Use:              Fixed, Mobile and Space Research

 

Remarks:                      The bands 1 370-1 400 MHz, 2 640-2 655 MHz, 4 950-4 990 MHz and 15.20-15.35 GHz are also allocated to the space research (passive) and earth exploration-satellite (passive) services on a secondary basis.

In the bands 1670-1690, 5000-5250 MHz and 10.7-11.7, 15.1365-15.35, 15.4-15.7, 22.5-22.55, 24-24.05, 31.0-31.3, 31.8-32.0, 40.5-42.5, 116-122.25, 123-130, 158.5-164, 167-168, 191.8-200, and 252-265 GHz, applicants for airborne or space station assignments are urged to take all practicable steps to protect radio astronomy observations in the adjacent bands from harmful interference.

In the band 14.896-15.121 GHz, non-Federal space stations in the space research service may be authorized on a secondary basis to transmit to Tracking and Data Relay Satellites subject to such conditions as may be applied on a case-by-case basis. Such transmissions shall not cause harmful interference to authorized Federal stations. The power flux-density produced by such non-Federal stations at the Earth's surface in any 1 MHz band for all conditions and methods of modulation shall not exceed: -124 dB(W/m2) for 0° < 2 < 5° -124 + (č–5)/2 dB(W/m2) for 5° < 2 < 25° -114 dB(W/m2) for 25° < 2 < 90° where 2 is the angle of arrival of the radio-frequency wave (degrees above the horizontal). These limits relate to the power flux-density and angles of arrival which would be obtained under free-space propagation conditions.

 

Frequency (GHz):      15.35 - 15.4

 

Allocated Use:              Earth Exploration Satellite (passive), Radio Astronomy and Space Research (passive)

 

Remarks:                      In the bands 25.55-25.67, 73.0-74.6, 406.1-410.0, 608-614, 1400-1427 (see US368), 1660.5-1670.0, 2690-2700, and 4990-5000 MHz, and in the bands 10.68-10.7, 15.35-15.4, 23.6- 24.0, 31.3-31.5, 86-92, 100-102, 109.5-111.8, 114.25-116, 148.5-151.5, 164-167, 200-209, and 250- 252 GHz, the radio astronomy service shall be protected from unwanted emissions only to the extent that such radiation exceeds the level which would be present if the offending station were operating in compliance with the technical standards or criteria applicable to the service in which it operates. Radio astronomy observations in these bands are performed at the locations listed in US311.

No station shall be authorized to transmit in the following bands: 73-74.6 MHz, 608-614 MHz, except for medical telemetry equipment,18 1400-1427 MHz, 1660.5-1668.4 MHz, 2690-2700 MHz, 4990-5000 MHz, 10.68-10.7 GHz, 15.35-15.4 GHz, 23.6-24 GHz, 31.3-31.8 GHz, 50.2-50.4 GHz, 52.6-54.25 GHz, 86-92 GHz, 100-102 GHz, 109.5-111.8 GHz, 114.25-116 GHz, 148.5-151.5 GHz, 164-167 GHz, 182-185 GHz, 190-191.8 GHz, 200-209 GHz, 226-231.5 GHz, 250-252 GHz.