773The use of the band 2 900 to 3 100 MHz by the aeronautical radionavigation service is limited to ground-based radars.

773 The use of the band 2 900 to 3 100 MHz by the aeronautical radionavigation service is limited to ground-based radars.

775A In the bands 2900--3100 MHz and 9300--9500 MHz, the response from radar transponders shall not be capable of being confused with the response from radar beacons (racons) and shall not cause interference to ship or aeronautical radars in the radionavigation service, having regard, however, to No. 347 of these Regulations.

777 Additional allocation: in Bulgaria, Canada, Cuba, Hungary, Mongolia, Poland, the German Democratic Republic, Romania, Czechoslovakia and the U.S.S.R., the band 3 100 to 3 300 MHz is also allocated to the radionavigation service on a primary basis.

778 In making assignments to stations of other services, administrations are urged to take all practicable steps to protect the spectral line observations of the radio astronomy service from harmful interference in the bands 3 260 to 3 267 MHz, 3 332 to 3 339 MHz, 3 345.8 to 3 352.5 MHz and779 Additional allocation: in Afghanistan, Saudi Arabia, Bahrain, Bangladesh, China, the Congo, the United Arab Emirates, India, Indonesia, Iran, Iraq, Israel, Japan, Kuwait, Lebanon, Libya, Malaysia, Oman, Pakistan, Qatar, Syria, Singapore, Sri Lanka, and Thailand, the band 3 300 to 3 400 MHz is also allocated to the fixed and mobile services on a primary basis. The countries bordering the Mediterranean shall not claim protection for their fixed and mobile services from the radiolocation service.

780 Additional allocation: in Bulgaria, Cuba, Hungary, Mongolia, Poland, the German Democratic Republic, Romania, Czechoslovakia and the U.S.S.R., the band 3 300 to 3 400 MHz is also allocated to the radionavigation service on a primary basis.

781 Additional allocation: in the Federal Republic of Germany, Israel, Nigeria and the United Kingdom, the band 3 400 to3 475 MHz is also allocated to the amateur service on a secondary basis.

782 Different category of service: in Austria, the allocation of the band 3 400 to 3 500 MHz to the radiolocation service is on a primary basis (see No. 425), subject to the agreement of the administrations of the following countries: Hungary, Italy, the German Democratic Republic, Czechoslovakia and Yugoslavia. Such use is limited to ground-based stations. However, this administration is urged to cease operations by 1985. After this date, this administration shall take all practicable steps to protect the fixed-satellite service and coordination requirements shall not be imposed on the fixed-satellite service.

783 Different category of service: in Indonesia, Japan, Pakistan and Thailand, the allocation of the band 3 400 to 3 500 MHz to the mobile, except aeronautical mobile, service is on a primary basis (see No. 425).

784 In Regions 2 and 3, in the band 3 400 to 3 600 MHz the radiolocation service is allocated on a primary basis. However, all administrations operating radiolocation systems in this band are urged to cease operations by 1985. Thereafter, administrations shall take all practicable steps to protect the fixed-satellite service and coordination requirements shall not be imposed on the fixed-satellite service.