ITU-R SA 1745-2006 Use of the band 1 668 4-1 710 MHz by the meteorological aids service and meteorological-satellite service (space-to-Earth)《用于气象辅助业务和气象卫星业务(空对地)的1668 4-1710 MHz频段.pdf
《ITU-R SA 1745-2006 Use of the band 1 668 4-1 710 MHz by the meteorological aids service and meteorological-satellite service (space-to-Earth)《用于气象辅助业务和气象卫星业务(空对地)的1668 4-1710 MHz频段.pdf》由会员分享,可在线阅读,更多相关《ITU-R SA 1745-2006 Use of the band 1 668 4-1 710 MHz by the meteorological aids service and meteorological-satellite service (space-to-Earth)《用于气象辅助业务和气象卫星业务(空对地)的1668 4-1710 MHz频段.pdf(2页珍藏版)》请在麦多课文档分享上搜索。
1、 Rec. ITU-R SA.1745 1 RECOMMENDATION ITU-R SA.1745*Use of the band 1 668.4-1 710 MHz by the meteorological aids service and meteorological-satellite service (space-to-Earth) (2006) Scope This Recommendation provides guidance for operators of MetAids and MetSat systems to allow more efficient use of
2、the commonly shared 1 670-1 700 MHz band, and provides guidance to operators of MetAids systems on transitioning their operations out of the 1 668.4-1 675 MHz band. The ITU Radiocommunication Assembly, considering a) that the meteorological aids (MetAids) service has a primary allocation in the band
3、 1 668.4-1 700 MHz with limitations as per provision No. 5.379E of the Radio Regulations (RR), and the meteorological-satellite (MetSat) service has a primary allocation in the band 1 670-1 710 MHz; b) that in order to avoid interference from MetAids transmitters to MetSat receiving earth stations,
4、segmentation of the band 1 675-1 710 MHz has been implemented by many administrations; c) that the MetAids ground stations and MetSat receiving earth stations can be fixed, mobile or transportable; d) that there exist hundreds of MetAids receiving stations and that, moreover, additional similar stat
5、ions, increasing spectrum usage, are foreseen in the future in the band (see Recommendation ITU-R RS.1165); e) that the band 1 683-1 690 MHz is used by hundreds of MetSat direct readout user stations in Regions 2 and 3; f) that there exist thousands of MetSat earth stations in the 1 690-1 710 MHz ba
6、nd, many of them using small antennas; g) that most MetAids operations in the 1 668.4-1 700 MHz band using currently available transmitters can be accommodated within 8 MHz of spectrum; h) that MetSat operators have agreed to segment the band 1 670-1 710 MHz into four sub-bands, which are being used
7、 and are expected to continue to be used as follows: 1 670-1 683 MHz: main earth stations at fixed locations for reception of raw image data, data collection and spacecraft telemetry from GSO meteorological satellites (see limitations in Resolution 670 (WRC-03); *This Recommendation should be brough
8、t to the attention of the World Meteorological Organization (WMO). 2 Rec. ITU-R SA.1745 1 683-1 690 MHz: main earth stations at fixed locations for reception of raw image data, data collection and spacecraft telemetry from GSO meteorological satellites; user stations for direct readout from GSO mete
- 1.请仔细阅读文档,确保文档完整性,对于不预览、不比对内容而直接下载带来的问题本站不予受理。
- 2.下载的文档,不会出现我们的网址水印。
- 3、该文档所得收入(下载+内容+预览)归上传者、原创作者;如果您是本文档原作者,请点此认领!既往收益都归您。
下载文档到电脑,查找使用更方便
10000 积分 0人已下载
下载 | 加入VIP,交流精品资源 |
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- ITURSA17452006USEOFTHEBAND166841710MHZBYTHEMETEOROLOGICALAIDSSERVICEANDMETEOROLOGICALSATELLITESERVICESPACETOEARTH

链接地址:http://www.mydoc123.com/p-793836.html