RES205 – 273 – 2 to organize monitoring programmes on the impact of unwanted emissions from systems operating in the frequency bands 405.9-406 MHz and 406.1-406.2 MHz on MSS reception in the frequency band 406-406.1 MHz in order to assess the effectiveness of this Resolution, and to report to subsequent world radiocommunication conferences, encourages administrations to take measures such as authorizing new assignments to stations in the fixed and mobile services with priority given to selecting channels with greater frequency separation from the 406 to 406.1 MHz frequency band and ensuring that the e.i.r.p. of new fixed and mobile systems at all but low elevation angles is kept to the minimum required level, urges administrations 1 to take part in monitoring programmes referred to in instructs the Director of the Radiocommunication Bureau above; 2 to ensure that stations other than those operated under No. 5.266 abstain from using frequencies in the frequency band 406-406.1 MHz; 3 to take the appropriate measures to eliminate harmful interference caused to the distress and safety system; 4 when designing Cospas-Sarsat satellite receiver payloads in the 406-406.1 MHz frequency band, to improve, to the extent possible, out-of-band filtering of such receivers, in order to reduce constraints on adjacent services while preserving the ability of the Cospas-Sarsat system to detect all kinds of emergency beacons and to maintain an acceptable rate of detection, which is vital to search and rescue missions; 5 to take all practical steps to limit the levels of unwanted emissions of stations operating within the 403-406 MHz and 406.1-410 MHz frequency ranges in order not to cause harmful interference to mobile-satellite systems operating in the 406-406.1 MHz frequency band; 6 to actively cooperate with the administrations participating in the monitoring programme and the Bureau to resolve reported cases of interference to the Cospas-Sarsat system.