ITU-R QUESTION 2884-2007 Characteristics and operational requirements of radionavigation-satellite service (space-to-Earth space-to-space Earth-to-space) systems《与无线电导航卫星服务业务需求特征(空.pdf
《ITU-R QUESTION 2884-2007 Characteristics and operational requirements of radionavigation-satellite service (space-to-Earth space-to-space Earth-to-space) systems《与无线电导航卫星服务业务需求特征(空.pdf》由会员分享,可在线阅读,更多相关《ITU-R QUESTION 2884-2007 Characteristics and operational requirements of radionavigation-satellite service (space-to-Earth space-to-space Earth-to-space) systems《与无线电导航卫星服务业务需求特征(空.pdf(2页珍藏版)》请在麦多课文档分享上搜索。
1、QUESTION ITU-R 288/4*Characteristics and operational requirements of radionavigation-satelliteservice (space-to-Earth, space-to-space, Earth-to-space) systems(2004-2006-2007)The ITU Radiocommunication Assembly,consideringa) that radionavigation-satellite service (RNSS) systems provide worldwide prec
2、ision, timing,positioning and navigation information for many applications, including critical and safety of lifeapplications;b) that there are various existing or planned RNSS systems;c) that the bands 149.9-150.05 MHz and 399.9-400.05 MHz are allocated worldwide on aprimary basis to the RNSS effec
3、tive until 1 January 2015;d) that the bands 1 164-1 300 MHz, 1 559-1 610 MHz and 5 010-5 030 MHz are allocatedworldwide on a primary basis to the RNSS (space-to-Earth, space-to-space);e) that the bands 1 300-1 350 MHz, and 5 000-5 010 MHz are allocated worldwide on aprimary basis to the RNSS (Earth-
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