|
Land mobile service〔ITU, RR, article 1.26〕 (short: FSS) is – in line to ITU Radio Regulations – a mobile service between base stations and land mobile stations, or between land mobile stations. The ITU Radio Regulations define this radiocommunication service as follows: Mobile service: *Mobile-satellite service *Aeronautical mobile service * *Aeronautical mobile (R) * service〔(R) – abbreviation to route flights (route)〕 * *Aeronautical mobile (OR)〔(OR) – abbreviation to flights others than on routs (off-route)〕 * *Aeronautical mobile-satellite service * * *Aeronautical mobile-satellite (R) * * *Aeronautical mobile-satellite (OR) * Land mobile service * *Land mobile-satellite service *Maritime mobile service * *Maritime mobile-satellite service ==FCC LMR Narrowbanding Mandate== LMR Narrowbanding is the result of an FCC Order issued in December 2004 mandating that all CFR 47 Part 90 business, educational, industrial, public safety, and state and local government VHF (150-174 MHz) and UHF (421-470 MHz) Private Land Mobile Radio (PLMR) licensees operating legacy wideband (25 kHz bandwidth) voice or data/SCADA systems to migrate to narrowband (12.5 kHz bandwidth or equivalent) systems by January 1, 2013. 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「Land mobile service」の詳細全文を読む スポンサード リンク
|