1、QUESTION ITU-R 245/5*, *Fixed service applications using frequency bands above 3 000 GHz*(2005)The ITU Radiocommunication Assembly,consideringa) that the World Radiocommunication Conference 2003 (WRC-03) has identified, as an itemrequiring studies by ITU-R, technical aspects of use of terrestrial op
2、tical free-space telecommunications;b) that studies of the possibility and relevance of including in the Radio Regulations frequencybands above 3 000 GHz are addressed in Question ITU-R 228/1;c) that the above use of terrestrial optical free-space telecommunications may include fixedservice applicat
3、ions,decides that the following Question should be studiedWhat are the technical and operational parameters, and the characteristics of terrestrial opticalfree-space telecommunications used for fixed service applications?further decides1 that the results of the above study should be included in one
4、or more Recommendations/Reports;2 that the studies should be completed by 2010.Category: C1_* This Question should be brought to the attention of Radiocommunication Study Groups 1, 3 and 7.* Former Question ITU-R 237/9.* The World Radiocommunication Conference 2007 (WRC-07) has adopted Resolution 955 (COM6/9)(WRC-07) reflected in WRC-11 Agenda item 1.6 on consideration of procedures for free-space opticallinks.Formatted: Font: 11 pt
