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.
5.459 Additional allocation: in the Russian Federation, the frequency bands 7 100-7 155 MHz and 7 190 7 235 MHz are also allocated to the space operation service (Earth-to-space) on a primary basis, subject to agreement obtained under No. 9.21. In the frequency band 7 190-7 235 MHz, with respect to the Earth exploration-satellite service (Earth-to-space), No. 9.21 does not apply. (WRC 15)
G116 The band 7125-7155 MHz is also allocated for Earth-to-space transmissions in the Space Operations Service at a limited number of sites (not to exceed two), subject to established coordination procedures.

Wiki entries

Unlicensed Level Probing Radars

Proposed Use 5925–7250 MHz

The FCC has released a Notice of Proposed Rule Making that would allow downward-pointing, unlicensed level probing radars, for use both in tanks and outdoors, at 5.925-7.250, 24.05-29, and 75-85 GHz.

Proposed EIRP boresight emissions limits are:

5.925-7.250 GHz: -33 dBm/MHz average and +7 dBm across 50 MHz.
24.05-29 GHz: -14 dBm/MHz average and +26 dBm across 50 MHz
75-85 GHz: -3 dBm/MHz average and +34 dBm across 50 MHz

Proposed average emissions limits to the sides and upward are:

5.925-7.250 GHz: -55 dBm/MHz
24.05-29 GHz: -41.3 dBm/MHz
75-85 GHz: -41.3 dBm/MHz

Wideband Systems under 15.250

Current Use 5925–7250 MHz Wideband systems (FCC part 15.250)

Part 15 of the FCC's rules accommodates operation of wideband systems in this band. The -10 dB bandwidth of the systems must be at least 50 MHz, but must be fully contained within 5925-7250 MHz. Average power of the devices is limited to -41.3 dBm. Peak power can be as high as 0 dBm across 50 MHz, which makes the band suitable for devices that generate a wideband signal by emitting a train of short pulses. Devices under this rule section may not be operated aboard aircraft or satellites.

Possible new primary EESS allocation (WRC-15 Agenda Item 1.11)

Historical Use 7000–8000 MHz Possible new primary EESS allocation (WRC-15 agenda item 1.11)

ITU World Radiocommunication Conference 2015 Agenda Item 1.11:

"To consider a primary allocation for the Earth exploration-satellite service (Earth-to-space) in the 7-8 GHz range, in accordance with Resolution 650 (WRC-12)"

NTIA Spectrum Use Summary

Current Use 7125–7145 MHz NTIA Spectrum Use Summary

The federal agencies use this band for fixed point-to-point microwave communication systems for national and military test range communications, and the remote transmission of radar video and other data for functions such as weather, vessel traffic control in harbor areas, and hydroelectric grid power management. This includes the Federal Aviation Administration use of this band for fixed point-to-point microwave communications networks to connect remote long-range aeronautical radionavigation radars to air traffic control centers.

The National Aeronautics and Space Administration and the National Oceanographic and Atmospheric Administration use the 6425-7250 MHz band for passive sensing of the Earth from space using microwave radiometers to obtain measurements of sea surface temperature which is a key component in weather forecasting and climatological studies. This band is used in conjunction with passive sensing bands around 10.6, 18.7, 23.8 and 36 GHz to obtain several important climatological parameters.

The NTIA does not issue information on the use of specific band segments in the 7/8 GHz band for fixed links, but the following information is available in a 2000 NTIA Report (NTIA Report 00-378) regarding government fixed service use in the 7125-8500 MHz range:

The FAA has 4,010 fixed assignments, including the radio communications link (RCL) system, a nationwide network used to connect air traffic controllers with communications and radar data from remote radar sites. The Air Force has 710 fixed assignments, used to support a large number of activities on numerous test and training ranges. The Navy has 800 fixed assignments, used mainly in voice and data links, ground forces communication, and land-line back up.

The Army has 450 fixed assignments, used for video scoring, closed circuit TV (security), point-to-point communications training, and for administrative traffic.

DOE has 1,200 fixed assignments used for system control and data acquisition (SCADA) for electric power distribution networks, perimeter security surveillance, laboratory telecommunication systems, and test site surveillance. Justice has 400 fixed assignments, used for fixed backbone nets used in law enforcement communications.

The Coast Guard has 160 fixed assignments, used to relay maritime radar and
communications needed for safety and navigation purposes in harbors and other critical locations. TVA has 140 fixed assignments, used for SCADA for electric power distribution systems.

WRC-27 study for potential IMT use

Proposed Use 7125–8400 MHz WRC-27 study for potential IMT use

WRC-27 agenda item 1.7:

to consider studies on sharing and compatibility and develop technical conditions for the use of International Mobile Telecommunications (IMT) in the frequency bands 4 400-4 800 MHz, 7 125-8 400 MHz (or parts thereof), and 14.8-15.35 GHz taking into account existing primary services operating in these, and adjacent, frequency bands, in accordance with Resolution 256 (WRC-23)