项目 25 (P25) 数字移动无线电系统

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1 - Introduction
1 - Introduction
2 - P25 functions, interfaces, and channels
1 - P25 functions, interfaces, and channels
3 - P25 network control, security, and subscriber management
1 - P25 network control, security, and subscriber management
4 - P25 conventionaltrunking systems, coverage configurations, consoles, sub units
1 - P25 conventionaltrunking systems, coverage configurations, consoles, sub units
5 - Land and digital mobile radio technologies
1 - Land and digital mobile radio technologies