YDN-QA101 DS3QAM modulator according to DVB standard. The television signals through MPEG-II compression code, to multiple processing with other data streams, then entered into the modulator. QAM codes completely fulfill the technical standards of DVB, such as interlacing, RS error-correction code, etc. The data through IF processing to up-converter, then send to the television channel, so that spread over the HFC, microwave MMDS networks. That is available to many digital broadband application systems, such as DTV, data broadcast, VOD , internet , video conferencing, etc.

 

Features
◆ Support the ITU-T J.83A and B
◆ Error Correcting Coding Complying DVB standard
◆ Support QPSK, 16QAM, 32QAM, 64QAM, 128QAM and 256QAMÂ modulating modes
◆ Input Interface: ASI and SPI(or E3/DS3)
◆ Input data bit rate: 1.5-51.6 Mbps
◆ Output data bit rate: 2-56 Mbps
◆ Output signal BW: 1.15-8.05MHz(Fall 0.15)
◆ Output data symbol ratio: 1-7Mbaud/s
◆ RF frequency range: 48-860MHz
◆ RF output level: 100dBuV-115dBuV(stepping optional)
◆ 188 and 204 packet auto-identify, displaying input data format real time
◆ Large cache, ASI interface support input burst and average code stream, reforming bit stream average in order to promote the output bit stream efficiency
◆ Improve output streaming efficiency
◆ NIT mapping and sending, support more than 44 NIT mapping
◆ 10 groups PID filtering and re-mapping
◆ Various PSI/SI information tables pick-up, parse and modification (customization available)
◆ SI information replacement and insertion
◆ Input data null packet filtering and output data stuffing
◆ PCR correction function can correct various input data, respectively and accurately
◆ Show and inspect system input bit rate and valid bit rate real-time
◆ Outstanding self-adapting filtering circuit designs to ensure the out-of-band inhibition performance
◆ -20dB RF testing interface with IF output
◆ Error alarming
◆ LCD display
◆ Network interface,support the remote maintenance, supervision and software upgrade
◆ Power off memory