Document ID: chunk:federal_register_of_legislation:F2021L00617:reg:162a:p81
Version: federal_register_of_legislation:F2021L00617
Segment Type: reg
Provision Reference: reg 162A (pt 81/144)
Character Range: 497381–500525

impose constraints on operation or development of the aeronautical radionavigation service.     (WRC-97)

    335A In the band 1 260–1 300 MHz, active spaceborne sensors in the Earth exploration–satellite and space research services shall not cause harmful interference to, claim protection from, or otherwise impose constraints on operation or development of the radiolocation service and other services allocated by footnotes on a primary basis.     (WRC-2000)

    337 The use of the bands 1 300–1 350 MHz, 2 700–2 900 MHz and 9 000–9 200 MHz by the aeronautical radionavigation service is restricted to ground-based radars and to associated airborne transponders which transmit only on frequencies in these bands and only when actuated by radars operating in the same band.

    337A The use of the band 1 300–1 350 MHz by Earth stations in the radionavigation–satellite service and by stations in the radiolocation service shall not cause harmful interference to, nor constrain the operation and development of, the aeronautical-radionavigation service.     (WRC-2000)

    338 In Kyrgyzstan, Slovakia and Turkmenistan, existing installations of the radionavigation service may continue to operate in the band 1 350–1 400 MHz.     (WRC-12)

    338A In the frequency bands 1 350–1 400 MHz, 1 427–1 452 MHz, 22.55–23.55 GHz, 24.25–27.5 GHz, 30–31.3 GHz, 49.7–50.2 GHz, 50.4–50.9 GHz, 51.4–52.4 GHz, 52.4–52.6 GHz,  81–86 GHz and 92–94 GHz, Resolution 750 (Rev.WRC-19) applies.     (WRC-19)

    339 The bands 1 370–1 400 MHz, 2 640–2 655 MHz, 4 950–4 990 MHz and 15.20–15.35 GHz are also allocated to the space research (passive) and Earth exploration–satellite (passive) services on a secondary basis.

    340 All emissions are prohibited in the following bands:
         1 400–1 427 MHz,
         2 690–2 700 MHz, except those provided for by No. 422,
         10.68–10.7 GHz, except those provided for by No. 483,
         15.35–15.4 GHz, except those provided for by No. 511,
         23.6–24 GHz,
         31.3–31.5 GHz,
         31.5–31.8 GHz, in Region 2,
         48.94–49.04 GHz, from airborne stations,

    50.2–50.4 GHz[2],

    52.6–54.25 GHz,
         86–92 GHz,
         100–102 GHz,
         109.5–111.8 GHz,
         114.25–116 GHz,
         148.5–151.5 GHz,
         164–167 GHz,
         182–185 GHz,
         190–191.8 GHz,
         200–209 GHz,
         226–231.5 GHz,
         250–252 GHz.     (WRC-03)

    341 In the bands 1 400–1 727 MHz, 101–120 GHz and 197–220 GHz, passive research is being conducted by some countries in a programme for the search for intentional emissions of extraterrestrial origin.

    341A In Region 1, the frequency bands 1 427–1 452 MHz and 1 492–1 518 MHz are identified for use by administrations wishing to implement International Mobile Telecommunications (IMT) in accordance with Resolution 223 (Rev.WRC-15). This identification does not preclude the use of these frequency bands by any other applications of the services to which it is allocated and does not establish priority in the Radio Regulations. The use of IMT stations is subject to agreement obtained under No. 9.21 with