Study Group 1 (SG 1) - ITU Study Group 1 (SG 1). You are here Skip Navigation Links Home > ITU-R > Study Groups > SG 1. Share. Share on Facebook Share on twitter Share on LinkedIn ...
About ITU-R The mission of the ITU Radiocommunication Sector is, inter alia, to ensure rational, equitable, efficient and economical use of the radio-frequency spectrum by ...
ITU-R - Wikipedia, the free encyclopedia The ITU Radiocommunication Sector (ITU-R) is one of the three sectors (divisions or units) of the International Telecommunication Union (ITU) and is ...
国际电信联盟无线电通信部门- 维基百科，自由的百科全书 国际电信联盟无线电通信部门（英语：ITU Radiocommunication Sector，缩写ITU-R） 是国际电信联盟管理下负责无线电通信管理的部门，其管理的主要内容包括无线电 ...
