| 翻訳と辞書 |
NXDN
NXDN is a Common Air Interface (CAI) technical protocol for mobile communications. It was developed jointly by Icom Incorporated and Kenwood Corporation.
NXDN is implemented by Icom in their IDAS system 〔http://www.icom.co.jp/world/idas/index.html〕 and by Kenwood as NEXEDGE;〔http://www.kenwoodcommunications.co.uk/about-nxdn/〕 both Kenwood and Icom now offer dual-standard equipment which supports the European dPMR standard.〔http://www.icom.co.jp/world/idas/dpmr/〕 〔http://www.kenwoodcommunications.co.uk/nexedge-dpmr/〕
== Applications ==
The NXDN protocol and the communications products in which it is used are intended for commercial Private Land Mobile Radio (PLMR) 〔http://wireless.fcc.gov/services/index.htm?job=service_home&id=private_land_radio〕 and low-end public safety communications systems. The technology satisfies the U.S. Federal Communications Commission (FCC) mandate requiring all communications systems covered by Part 90 regulations to use narrowband technology by January 1, 2013. Part 90 regulations specify a bandwidth of 12.5 kHz, but the FCC “strongly urges licensees to consider migrating directly to 6.25 kHz technology rather than first adopting 12.5 kHz technology and later migrating to 6.25 kHz technology.” The FCC “will expeditiously establish a schedule for transition to 6.25 kHz narrowband technology.” 〔http://hraunfoss.fcc.gov/edocs_public/attachmatch/FCC-04-292A1.pdf〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
■ウィキペディアで「NXDN」の詳細全文を読む
スポンサード リンク
| 翻訳と辞書 : 翻訳のためのインターネットリソース |
Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.
|
|