Suri campus broadcasting system was widely used in schools

Broadcasting system in the campus applications is very wide, and each school day are required to broadcast to play up exercises, eye exercises, notifications and Bell, and so on. Multimedia technology is widely used for campus broadcasting system brought epoch-making revolution, campus broadcasting system's functions are not limited to public broadcasting, modern teaching English listening comprehension, examinations and other new requirements only by traditional public broadcasting has been unable to meet. School for broadcasting system requirements stable reliable, powerful, clear sound quality, ease of operation, auto play, points, zone control, a high degree of intelligence.

School requirements depend on the actual situation and specific requirements, providing personalized design services. At present the various schools of the Sullivan service broadcasting system vary, generally there are so few species:

1. engine room there is a simple device, Terminal used drum major speakers line adopts la audio line. The sound quality is poor, features a single, common in remote mountainous area schools have used.

2. room with a fixed-voltage power amplifier, mixer, wall-mounted speaker with indoor Terminal, outdoor outdoor sound columns, lawn speaker, line uses the audio line. The sound quality in General, wiring, region established changes of trouble, addressable control needs to be routed.

3. engine room with the FM modulator, the audio matrix and other equipment, Terminal with fixed frequency FM sound box, line uses the CATV network transmission. Device, do not facilitate multi-channel playback. Partition, addressing control Additionally a root control cable.

4. a computer room with wireless FM transmitter, Terminal with wireless FM receiver, using the wireless transmission mode. Require approval of the Commission will pay a fee each year, vulnerable to outside interference.

5. engine room, using computer terminal with one IP receive demodulation cartridge, based on the Campus LAN transmission, but the cost is too high, on network speed and bandwidth are required. Users of less.

6. room equipment using frequency modulation, distributed multi-channel FSK data encoding transfer, Terminal using multi-frequency FM frequency to receive sound automatically. Audio signal and FSK addressing control signals based on the school's existing CATV network signal transmission. Truly the "one line", multi-network. Speaker with high bass frequency 2-Horn, near CD quality sound.