查詢 text:Radio frequency allocation United States. ，共 2 筆
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108 0 0 0 0Wireless spectrum finder :telecommunications, government, and scientific radio frequency allocations in the U.S., 30 MHz-300 GHz
- 作者: Kobb, Bennett Z.
- 出版: New York : McGraw-Hill ©2001.
- 資料類型: 電子書
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10 0 0 0 0
Summary of a forum on spectrum management policy reform
- 作者: National Research Council (U.S.).
- 出版: Washington, D.C. : National Academies Press ©2004.
- 資料類型: 電子書