Document ID: chunk:federal_register_of_legislation:F2021L00617:reg:162a:p137
Version: federal_register_of_legislation:F2021L00617
Segment Type: reg
Provision Reference: reg 162A (pt 137/144)
Character Range: 652451–655529

9.12 for coordination with other non-geostationary-satellite systems in the fixed–satellite service but not with non-geostationary-satellite systems in other services. Resolution 770 (WRC-19) shall also apply, and No. 22.2 shall continue to apply.     (WRC-19)

    550D The allocation to the fixed service in the frequency band 38–39.5 GHz is identified for worldwide use by administrations wishing to implement high-altitude platform stations (HAPS). In the HAPS-to-ground direction, the HAPS ground station shall not claim protection from stations in the fixed, mobile and fixed–satellite services; and No. 43A does not apply. This identification does not preclude the use of this frequency band by other fixed-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. Furthermore, the development of the fixed–satellite, fixed and mobile services shall not be unduly constrained by HAPS. Such use of the fixed-service allocation by HAPS shall be in accordance with the provisions of Resolution 168 (WRC-19).     (WRC-19)

    550E The use of the frequency bands 39.5–40 GHz and 40–40.5 GHz by non-geostationary-satellite systems in the mobile–satellite service (space-to-Earth) and by non-geostationary-satellite systems in the fixed–satellite service (space-to-Earth) is subject to the application of the provisions of No. 9.12 for coordination with other non-geostationary-satellite systems in the fixed–satellite and mobile–satellite services but not with non-geostationary-satellite systems in other services. No. 22.2 shall continue to apply for non-geostationary-satellite-systems.     (WRC-19)

    551F Different category of service:  in Japan, the allocation of the band 41.5–42.5 GHz to the mobile service is on a primary basis (see No. 33).     (WRC-97)

    551H The equivalent power flux-density (epfd) produced in the frequency band 42.5–43.5 GHz by all space stations in any non-geostationary-satellite system in the fixed–satellite service (space-to-Earth), or in the broadcasting–satellite service operating in the frequency band 42–42.5 GHz, shall not exceed the following values at the site of any radio astronomy station for more than 2% of the time:
     −230 dB(W/m2) in 1 GHz and −246 dB(W/m2) in any 500 kHz of the frequency band 42.5–43.5 GHz at the site of any radio astronomy station registered as a single-dish telescope; and −209 dB(W/m2) in any 500 kHz of the frequency band 42.5–43.5 GHz at the site of any radio astronomy station registered as a very long baseline interferometry station.
     These epfd values shall be evaluated using the methodology given in Recommendation ITU‑R S.1586-1 and the reference antenna pattern and the maximum gain of an antenna in the radio astronomy service given in Recommendation ITU‑R RA.1631-0 and shall apply over the whole sky and for elevation angles higher than the minimum operating angle θmin of the radiotelescope (for which a default value of 5° should be adopted in the absence of notified