Along with the government broadcasting system network's renewal, using the entire digital, large capacity, high reliable and high security digital stereo broadcast equipments to transmit the sound obtains widespread attention. To coordinate users?? needs, we promote MA05 series of 2Mbit/s digital stereo broadcast transmission equipment which can satisfy the needs of the modern broadcast enterprises and their future development. This system mainly includes: MA05 digital stereo broadcast transmission equipment, MA05B digital stereo broadcast receiver.
The MA05 series of digital stereo broadcast transmission equipments, through the E1 transmission system network, establish a digital stereo broadcast transmission network, can realize large capacity, high reliability, the high security and ultra strong management ability of the broadcast transmission, which are corollary equipments of Ministry of Radio, Film and Television, the highway broadcast systems and others systems which need broadcast and sound transmission.
main characteristics
1. Complying with national conditions: Complying with the national condition of concentrate broadcast transmission and the requests of Ministry of Radio, Film and Television, they are broadcast -level special equipments for broadcasting programs by the terrestrial digital transmission net.
2. Meet standards: Compressing or decompressing analog or digital audio frequencies, according to the MPEG standard, and has multiplexing/decomposing function. Conforming to ITU-T G.703 standard at the E1 interface; The digital interface conforms to the AES/EBU standard.
3. Large transmission capacity: Each 2Mbit/s transmission code stream can most downward transmit or upward transmit broadcast programs of totally 15 channels of monophony or 7 channels of stereo.
4. Advanced Technology: Uses the advanced MPEG audio frequency compress technique and the DSP technology, the FPGA technology; Using entirely modularized design, reliable and good performance of anti-interference??
5. Flexible networking: They could be used to connect with the optical transmission network (SDH, PDH), digital microwave transmission network, satellite transmission network etc.
6. High security: Having independent intellectual property rights, may act according to the user request to carry on different encryption in digital code stream.
7.Various interfaces: The encoding equipment have optional AES/EBU digital interfaces besides analog audio interfaces and they can used with the audio digital equipments whose sampling frequency are 3KHz, 44.1 KHz, 48 KHz etc by connection.
8. Loopback detection: Having the loopback detection ability which facilitates responsibility distinguishing, failure recovery, maintenance
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