Document ID: chunk:federal_register_of_legislation:F2021L00617:reg:162a:p106
Version: federal_register_of_legislation:F2021L00617
Segment Type: reg
Provision Reference: reg 162A (pt 106/144)
Character Range: 565228–568175

150 MHz, the aeronautical mobile–satellite (R) service is subject to agreement obtained under No. 9.21. The use of these bands by the aeronautical mobile–satellite (R) service is limited to internationally standardized aeronautical systems.

    443B In order not to cause harmful interference to the microwave landing system operating above 5 030 MHz, the aggregate power flux-density produced at the Earth's surface in the frequency band 5 030–5 150 MHz by all the space stations within any radionavigation–satellite service system (space-to-Earth) operating in the frequency band 5 010–5 030 MHz shall not exceed −124.5 dB(W/m2) in a 150 kHz band. In order not to cause harmful interference to the radio astronomy service in the band 4 990–5 000 MHz, radionavigation–satellite service systems operating in the band 5 010–5 030 MHz shall comply with the limits in the frequency band 4 990–5 000 MHz defined in Resolution 741 (Rev.WRC-15).     (WRC-15)

    443C The use of the frequency band 5 030–5 091 MHz by the aeronautical mobile (R) service is limited to internationally standardized aeronautical systems. Unwanted emissions from the aeronautical mobile (R) service in the frequency band 5 030–5 091 MHz shall be limited to protect RNSS system downlinks in the adjacent 5 010–5 030 MHz band. Until such time that an appropriate value is established in a relevant ITU‑R Recommendation, the e.i.r.p. density limit of −75 dBW/MHz in the frequency band 5 010–5 030 MHz for any AM(R)S station unwanted emission should be used.     (WRC-12)

    443D In the frequency band 5 030–5 091 MHz, the aeronautical mobile–satellite (R) service is subject to coordination under No. 9.11A. The use of this frequency band by the aeronautical mobile–satellite (R) service is limited to internationally standardized aeronautical systems.

    444 The frequency band 5 030–5 150 MHz is to be used for the operation of the international standard system (microwave landing system) for precision approach and landing. In the frequency band 5 030–5 091 MHz, the requirements of this system shall have priority over other uses of this frequency band. For the use of the frequency band 5 091–5 150 MHz, No. 444A and Resolution 114 (Rev.WRC-15) apply.     (WRC-15)

    444A The use of the allocation to the fixed–satellite service (Earth-to-space) in the frequency band 5 091–5 150 MHz is limited to feeder links of non-geostationary-satellite systems in the mobile–satellite service and is subject to coordination under No. 9.11A. The use of the frequency band 5 091–5 150 MHz by feeder links of non-geostationary satellite systems in the mobile–satellite service shall be subject to application of Resolution 114 (Rev.WRC-15). Moreover, to ensure that the aeronautical radionavigation service is protected from harmful interference, coordination is required for feeder-link earth stations of the non-geostationary satellite systems in the mobile-satellite service