1、QUESTION ITU-R 237/5*Characteristics and protection criteria of radars operating in theradiodetermination service in the VHF frequency band(2005)The ITU Radiocommunication Assembly,considering) that the technical characteristics of radars operating in the radiodetermination service are based on the
2、specific system tasks and can considerably differ even within the same frequencyband;b) that several parts of frequency bands between 30 and 300 MHz are allocated to theradiodetermination service in several Regions;c) that some administrations consider the possibility of the introduction of newradio
3、determination radars engaged with securing the safety of life and safety and regularity offlights in the VHF frequency band;d) that this frequency band provides the unique means of detection at very long distances idealfor the identification and tracking of objects;e) that for the determination of p
4、ossibility with respect to the introduction of new types ofradiodetermination radars and for the definition of suitable frequency bands it is necessary to knowthe representative technical and operational characteristics of systems using this frequency band;f) that for the compatibility analysis betw
5、een radiodetermination radars and systems in otherservices appropriate procedures and methods are required,decides that the following questions should be studied:1 What technical and operational characteristics and protection criteria for radiodeterminationradars are appropriate for carrying out a d
6、etailed study of compatibility with systems in otherservices?2 What conditions of compatibility for radiodetermination radars with other existing servicesare appropriate in the frequency bands which may be used by these radars?3 What appropriate procedures are necessary for carrying out detailed stu
7、dies of compatibilitybetween radiodetermination radars and systems in other services?further decides1 that the results of the above-mentioned studies should be included in one or severalRecommendations;2 that these studies should be completed by 2007.Proposed category: S2_* Former Question ITU-R 237/8.
