DVB-T Modulator support DVB-T standard channel coding and modulation parameters, A/V signal compressed and coded via MPEG-2 and be multiplexed and processed together with other data stream, then send to DVB-T Modulator. Modulator channel coding process is full according to DVB-T technical specifications and achieve energy proliferation, interweave, FEC coding, RS coding, symbol mapping, filter matching etc. After that modulated by COFDM and output IF. IF through built in up-converter generate the required RF output. Widely used for terrestrial digital television broadcasting, mobile data broadcast and digital broadband application.
Features
Comply EN300744 standard, support 6MHz/7MHz/8MHz bandwidth
Error correction comply DVB-T standard
Operable in QPSK, 16QAM, 64QAM mode
Support 2K/8K carrier-wave operating mode
FEC encode supports1/2, 2/3, 3/4, 5/6 and 7/8
Secure time interval supports1/4, 1/8, 1/16, 1/32
Input interface: ASI and SPI (DS3/E3 optional) Input bit rate: 1.5~31.67Mbps
Output bandwidth: 6/7/8MHz
RF output: 48~860MHz
Output level: 105dBuV~115dBuV (step adjustable) 188 and 204 packet automatic identification, shows real-time data format
Adopt high capability buffer, ASI interface supports burst and equality TS, while re-construct equality TS
Advance output TS efficiency
Capable of NITmapping and sending, supports over 44 NIT mapping frequency
Holds 10 groups of PID filtering and re-mapping function
Support all PSI/SI data abstraction, modification and analysis
Null packet filtering and filling
Performs multiple PCR correction simultaneously
Monitor and test real-time enter/valid bit rate
Self-adjust filter circuit design in order guarantees superb SNR (out of band) -20dB RF test output is available (IF output is also available) Failure alarming and LCD display
With RJ45, actualize central NMS, distant upgrade/maintenance (NMS software is optional) Power off memory
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