(1. Introduction to Guangzhou Aidis Electronic Technology Co., Ltd. 3. 2. Design ideas for public broadcasting 3. 3. Design principles and basis for public broadcasting 43.1 Design principles 43.2 Design basis 5. 4. Design requirements for public broadcasting : 64.3 Loudspeaker setting 84.4 Power supply requirements of broadcasting system 84.5 Line and pipeline laying requirements 84.6 Lightning protection grounding requirements: 84.7 Public/fire broadcasting design indicators 95. Broadcast engineering system design scheme 95.1 Project overview and user requirements 95.2 Engineering system analysis 105.3 Project System equipment list 115.4 Engineering system diagram 125.5 Engineering system function description 125.6 Engineering equipment description 15 6. Engineering case 29 1. Public broadcasting system engineering construction specification 31 2. Engineering system site construction and organization management requirements 32 3. Engineering system installation and debugging and acceptance 33 Fourth, enterprise after-sales service commitment 33)