| 词条 | Rural radio service |
| 释义 |
Rural Radiotelephone Service (RRTS) provides basic, analog communications service between locations deemed so remote that traditional wireline service or service by other means is not feasible. [1] RRTS uses channelized radio to provide radiotelephone services such as Basic Exchange Telephone Radio Service between a fixed subscriber location and a remote central office, private line service between a two fixed locations or interconnection between two or more central offices. RRTS does not enable mobile communications. LicensingIn the United States, the Federal Communications Commission issues initial Rural Radiotelephone Service licenses on a site-by-site basis. Once a license is issued, the licensee can sell or lease the license to another party. The FCC service rules for Rural Radiotelephone are located in 47 C.F.R. Part 22 Subpart F.[1] Technical informationIn the United States, the ULS radio service code and description for Rural Radiotelephone licenses is CR – Rural Radiotelephone. The licensed spectrum is divided in 44 channels of 20 kHz each.[1] References1. ^1 2 {{cite web |url=http://www.fcc.gov/encyclopedia/rural-radiotelephone-service |title=Rural Radiotelephone Service |work=FCC Encyclopedia |publisher=Federal Communications Commission |accessdate=2012-04-24}}
2 : Telephone services|Wireless |
| 随便看 |
|
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。