Allocations

 
U.S. Non-Federal-Government Allocations
3600 - 3650 MHz
FIXED
FIXED-SATELLITE (space-to-Earth) US107 US245
MOBILE except aeronautical mobile


U.S. Federal Government Allocations
3550 - 3650 MHz
RADIOLOCATION G59
AERONAUTICAL RADIONAVIGATION (ground-based) G110


ITU Region 1 Allocations
3600 - 4200 MHz
FIXED
FIXED-SATELLITE (space-to-Earth)
Mobile


ITU Region 2 Allocations
3500 - 3700 MHz
FIXED
FIXED-SATELLITE (space-to-Earth)
MOBILE except aeronautical mobile
Radiolocation 5.433


ITU Region 3 Allocations
3600 - 3700 MHz
FIXED
FIXED-SATELLITE (space-to-Earth)
MOBILE except aeronautical mobile
Radiolocation 5.433


SpectrumWiki


Footnotes


5.433 In Regions 2 and 3, in the band 3400-3600 MHz the radiolocation service is allocated on a primary basis. However, all administrations operating radiolocation systems in this band are urged to cease operations by 1985. Thereafter, administrations shall take all practicable steps to protect the fixed-satellite service and coordination requirements shall not be imposed on the fixed-satellite service.

5.435 In Japan, in the band 3620-3700 MHz, the radiolocation service is excluded.

US105 In the band 3550-3650 MHz, non-Federal stations in the radiolocation service that were licensed or applied for prior to [effective date of Report and Order] may continue to operate on a secondary basis until the end of the equipment’s useful lifetime.

US107 In the band 3600-3650 MHz, the following provisions shall apply to earth stations in the fixed-satellite service (space-to-Earth):

(a) Earth stations authorized prior to, or granted as a result of an application filed prior to, [effective date of the Report and Order] and constructed within 12 months of initial authorization may continue to operate on a primary basis. Applications for modifications to such earth station facilities filed after [the effective date of the Report and Order] shall not be accepted, except for changes in polarization, antenna orientation, or ownership; and increases in antenna size for interference mitigation purposes.

(b) The assignment of frequencies to new earth stations after [the effective date of the Report and Order] shall be authorized on a secondary basis.

US245 In the bands 3600-3650 MHz (space-to-Earth), 4500-4800 MHz (space-to-Earth), and 5850-5925 MHz (Earth-to-space), the use of the non-Federal fixed-satellite service is limited to international inter-continental systems and is subject to case-by-case electromagnetic compatibility analysis. The FCC's policy for these bands is codified at 47 CFR 2.108.

US433 In the band 3550-3650 MHz, the following provisions shall apply to Federal use of the aeronautical radionavigation (ground-based) and radiolocation services and to non-Federal use of the fixed and mobile except aeronautical mobile services:

(a) Non-Federal stations in the fixed and mobile except aeronautical mobile services are restricted to stations in the Citizens Broadband Radio Service and shall not cause harmful interference to, or claim protection from, Federal stations in the aeronautical radionavigation (ground-based) and radiolocation services at the locations listed at: ntia.doc.gov/category/3550-3650-mhz . New and modified federal stations shall be allowed at current or new locations, subject only to approval through the National Telecommunications and Information Administration frequency assignment process with new locations added to the list at: ntia.doc.gov/category/3550-3650-mhz . Coordination of the Federal stations with Citizens Broadband Radio Service licensees or users is not necessary. Federal operations, other than airborne radiolocation systems, shall be protected consistent with the procedures set forth in 47 CFR 96.15 and 96.67.

(b) Non-federal fixed and mobile stations shall not claim protection from federal airborne radar systems.

(c) Federal airborne radar systems shall not claim protection from non-Federal stations in the fixed and mobile except aeronautical mobile services operating in the band.



G59 In the bands 902-928 MHz, 3100-3300 MHz, 3500-3650 MHz, 5250-5350 MHz, 8500-9000 MHz, 9200-9300 MHz, 13.4-14.0 GHz, 15.7-17.7 GHz and 24.05-24.25 GHz, all Federal non-military radiolocation shall be secondary to military radiolocation, except in the sub-band 15.7-16.2 GHz airport surface detection equipment (ASDE) is permitted on a co-equal basis subject to coordination with the military departments.

G110 Federal ground-based stations in the aeronautical radionavigation service may be authorized between 3500-3650 MHz when accommodation in the band 2700-2900 MHz is not technically and/or economically feasible.


SpectrumWiki

 
Aeronautical Radio Altimeters
4 GHz Fixed Service Band
Geostationary Fixed Satellite Service (GSO FSS)
Citizens Broadband Radio Service (CBRS)
Wi-Fi
Common Carrier Fixed Point-to-Point Microwave
FCC Proposed Rules for Citizens Broadband Service
SPN-43 Shipborne Radar
Standard LTE Bands
UK Broadband
SPY-1 Shipborne Air Surveillance Radar
Through-wall Radar waiver
Actions to support FSS Earth stations in 3400-4200 MHz (WRC-15 Agenda Item 9.1.5)


Related Documents, Links, and Multimedia:
FCC Proceeding (4)
Band Plan (1)
Other (1)

Engineering Data

Lower Frequency Center Frequency Upper Frequency
Frequency 3.5 GHz 3.85 GHz 4.2 GHz
Wavelength 8.6 cm 7.8 cm 7.1 cm
Band designator(s) SHF; S-band (IEEE) SHF; S-band (IEEE) SHF; C-band (IEEE)
Isotropic collecting area 5.8 cm2 4.8 cm2 4.1 cm2
Free space loss (1 m) 43.6 dB 44.2 dB 43.8 dB
Free space loss (1 km) 103.6 dB 104.2 dB 103.8 dB
Free space loss (10 km) 123.6 dB 124.2 dB 123.8 dB
Free space loss (100 km) 143.6 dB 144.2 dB 143.8 dB
Free space loss (1000 km) 163.6 dB 164.2 dB 163.8 dB
Free space loss
(35,786 km = GEO orbit)
194.7 dB 195.2 dB 194.9 dB
Free space loss (378,370 km = Moon) 215.1 dB 215.7 dB 215.4 dB