RES418 – 317 – d) that MLS can be protected through the implementation of an adequate separation distance between an aeronautical mobile service transmitter to support telemetry and MLS receivers; e) that ITU-R studies have generated methods, described in Report ITU-R M.2118, for ensuring compatibility and sharing between the aeronautical mobile service and the fixed-satellite service operating in the frequency band 5 091-5 250 MHz, which result in interference of no more than 1% ΔTsatellite/Tsatellite from AMT aircraft station transmissions to fixed-satellite service spacecraft receivers; f) that a method to facilitate sharing between MLS and aeronautical mobile service is contained in Recommendation ITU-R M.1829;g) that Recommendation ITU-R M.1828 provides the technical and operational requirements for aircraft stations of the aeronautical mobile service, limited to transmissions of telemetry for flight testing; h) that ITU-R compatibility studies have been performed for AMT, limited to flight testing; such application is for the testing of aircraft during non-commercial flights for the purpose of development, evaluation and/or certification of aircraft in airspace designated by administrations for this purpose, recognizing a) that priority is to be given to MLS in accordance with No. 5.444 in the frequency band 5 030-5 091 MHz; b) that studies have been performed within ITU-R concerning the sharing and compatibility of AMT for flight testing with other services in the frequency band 5 091-5 250 MHz; c) that Resolution 748 (Rev.WRC-15) also provides guidance on the use of the frequency band 5 091-5 150 MHz by the aeronautical mobile service, resolves 1 that administrations choosing to implement AMT shall limit AMT applications to those identified in noting h) in the frequency band 5 091-5 250 MHz, and shall utilize the criteria set forth in Annex 1 to this Resolution; 2 that the pfd limits in § 3 and 4 of Annex 1 to this Resolution which protect terrestrial services may be exceeded on the territory of any country whose administration has so agreed, invites the ITU Radiocommunication Sector to continue studying the conditions and arrangements stipulated in noting a).