Allocations

 
U.S. Non-Federal-Government Allocations
5925 - 6425 MHz
FIXED
FIXED-SATELLITE (Earth-to-space) NG457A


U.S. Federal Government Allocations
5925 - 6425 MHz


ITU Region 1 Allocations
5925 - 6700 MHz
FIXED 5.457
FIXED-SATELLITE (Earth-to-space) 5.457A 5.457B
MOBILE 5.457C


ITU Region 2 Allocations
5925 - 6700 MHz
FIXED 5.457
FIXED-SATELLITE (Earth-to-space) 5.457A 5.457B
MOBILE 5.457C


ITU Region 3 Allocations
5925 - 6700 MHz
FIXED 5.457
FIXED-SATELLITE (Earth-to-space) 5.457A 5.457B
MOBILE 5.457C


SpectrumWiki

Band Uses (5.925 - 6.7 GHz)


Footnotes

5.149   In making assignments to stations of other services to which the bands:
13 360-13 410 kHz,
25 550-25 670 kHz,
37.5-38.25 MHz,
73-74.6 MHz in Regions 1 and 3,
150.05-153 MHz in Region 1,
322-328.6 MHz,
406.1-410 MHz,
608-614 MHz in Regions 1 and 3,
1 330-1 400 MHz,
1 610.6-1 613.8 MHz,
1 660-1 670 MHz,
1 718.8-1 722.2 MHz,
2 655-2 690 MHz,
3 260-3 267 MHz,
3 332-3 339 MHz,
3 345.8-3 352.5 MHz,
4 825-4 835 MHz, 4 950-4 990 MHz,
4 990-5 000 MHz,
6 650-6 675.2 MHz,
10.6-10.68 GHz,
14.47-14.5 GHz,
22.01-22.21 GHz,
22.21-22.5 GHz,
22.81-22.86 GHz,
23.07-23.12 GHz,
31.2-31.3 GHz,
31.5-31.8 GHz in Regions 1 and 3,
36.43-36.5 GHz,
42.5-43.5 GHz,
48.94-49.04 GHz,
76-86 GHz,
92-94 GHz,
94.1-100 GHz, 102-109.5 GHz,
111.8-114.25 GHz,
128.33-128.59 GHz,
129.23-129.49 GHz,
130-134 GHz,
136-148.5 GHz,
151.5-158.5 GHz,
168.59-168.93 GHz,
171.11-171.45 GHz,
172.31-172.65 GHz,
173.52-173.85 GHz,
195.75-196.15 GHz,
209-226 GHz,
241-250 GHz,
252-275 GHz
are allocated, administrations are urged to take all practicable steps 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). (WRC 07)

5.440   The standard frequency and time signal-satellite service may be authorized to use the frequency 4 202 MHz for space-to-Earth transmissions and the frequency 6 427 MHz for Earth-to-space transmissions. Such transmissions shall be confined within the limits of ± 2 MHz of these frequencies, subject to agreement obtained under No. 9.21.

5.457   In Australia, Burkina Faso, Cote d'Ivoire, Mali and Nigeria, the allocation to the fixed service in the bands 6 440-6 520 MHz (HAPS-to-ground direction) and 6 560-6 640 MHz (ground-to-HAPS direction) may also be used by gateway links for high-altitude platform stations (HAPS) within the territory of these countries. Such use is limited to operation in HAPS gateway links and shall not cause harmful interference to, and shall not claim protection from, existing services, and shall be in compliance with Resolution 150 (WRC 12). Existing services shall not be constrained in future development by HAPS gateway links. The use of HAPS gateway links in these bands requires explicit agreement with other administrations whose territories are located within 1 000 kilometres from the border of an administration intending to use the HAPS gateway links. (WRC 12)

5.457A   In the frequency bands 5 925-6 425 MHz and 14-14.5 GHz, earth stations located on board vessels may communicate with space stations of the fixed-satellite service. Such use shall be in accordance with Resolution 902 (WRC 03). In the frequency band 5 925-6 425 MHz, earth stations located on board vessels and communicating with space stations of the fixed-satellite service may employ transmit antennas with minimum diameter of 1.2 m and operate without prior agreement of any administration if located at least 330 km away from the low-water mark as officially recognized by the coastal State. All other provisions of Resolution 902 (WRC-03) shall apply. (WRC-15)

5.457B   In the frequency bands 5 925-6 425 MHz and 14-14.5 GHz, earth stations located on board vessels may operate with the characteristics and under the conditions contained in Resolution 902 (WRC 03) in Algeria, Saudi Arabia, Bahrain, Comoros, Djibouti, Egypt, United Arab Emirates, Jordan, Kuwait, Libya, Morocco, Mauritania, Oman, Qatar, the Syrian Arab Republic, Sudan, Tunisia and Yemen, in the maritime mobile-satellite service on a secondary basis. Such use shall be in accordance with Resolution 902 (WRC 03). (WRC 15)

5.457C   In Region 2 (except Brazil, Cuba, French overseas departments and communities, Guatemala, Mexico, Paraguay, Uruguay and Venezuela), the frequency band 5 925-6 700 MHz may be used for aeronautical mobile telemetry for flight testing by aircraft stations (see No. 1.83). Such use shall be in accordance with Resolution 416 (WRC 07) and shall not cause harmful interference to, or claim protection from, the fixed-satellite and fixed services. Any such use does not preclude the use of this frequency band by other mobile service applications or by other services to which this frequency band is allocated on a co-primary basis and does not establish priority in the Radio Regulations. (WRC 15)

5.458   In the band 6 425-7 075 MHz, passive microwave sensor measurements are carried out over the oceans. In the band 7 075-7 250 MHz, passive microwave sensor measurements are carried out. Administrations should bear in mind the needs of the Earth exploration-satellite (passive) and space research (passive) services in their future planning of the bands 6 425-7 075 MHz and 7 075-7 250 MHz.

NG457A  Earth stations on vessels (ESVs), as regulated under 47 CFR part 25, are an application of the fixed-satellite service and the following provisions shall apply:

  (a) In the band 3700-4200 MHz, ESVs may be authorized to receive FSS signals from geostationary satellites. ESVs in motion are subject to the condition that these earth stations may not claim protection from transmissions of non-Federal stations in the fixed and mobile except aeronautical mobile services. While docked, ESVs receiving in the band 4000-4200 MHz may be coordinated for up to 180 days, renewable. NG182 applies to incumbent licensees that provide service to ESVs in the band 3700-4000 MHz.

  (b) In the band 5925-6425 MHz, ESVs may be authorized to transmit to geostationary satellites on a primary basis.


SpectrumWiki

 
6 GHz Fixed Service Band
Common Carrier Fixed Point-to-Point Microwave
2019 World Radiocommunication Conference (WRC-19) Agenda Item 1.16
WRC 23 Agenda Item 1.2 IMT identification
802.11/WLAN/Wi-Fi/WiGig
Geostationary Fixed Satellite Service (GSO FSS)
Unlicensed Level Probing Radars
Dedicated Short Range Communications (DSRC)
Wideband Systems under 15.250
High Altitude Platform Station (HAPS)




Related Documents, Links, and Multimedia:
FCC Proceeding (5)
White Paper (1)
Band Plan (1)
Legislation (1)
Other (1)




Engineering Data

Lower Frequency Center Frequency Upper Frequency
Frequency 5.925 GHz 6.3125 GHz 6.7 GHz
Wavelength 5.1 cm 4.7 cm 4.5 cm
Band designator(s) SHF; C-band (IEEE) SHF; C-band (IEEE) SHF; C-band (IEEE)
Isotropic collecting area 2.0 cm2 1.8 cm2 1.6 cm2
Free space loss (1 m) 47.9 dB 48.5 dB 49.0 dB
Free space loss (1 km) 107.9 dB 108.5 dB 109.0 dB
Free space loss (10 km) 127.9 dB 128.5 dB 129.0 dB
Free space loss (100 km) 147.9 dB 148.5 dB 149.0 dB
Free space loss (1000 km) 167.9 dB 168.5 dB 169.0 dB
Free space loss
(35,786 km = GEO orbit)
199.0 dB 199.5 dB 200.0 dB
Free space loss (378,370 km = Moon) 219.5 dB 220.0 dB 220.5 dB
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