Digital TV broadcasting equipment modulator/Digital tv broadcasting equipment

详情

Specifications 1. DVB-T RF modulator
2. Wireless DVB-T System
3. 2K,4K, 8K
4. Output band width:6/7/8MHz        

 

Outline:

JXDH****5 DVB-T Modulator modulator converts data streams into frequency signals, it meets DVB-C standard. Signals from MPEG-II compact encoder or multiplexer was sent into DVB-T modulator. According to DVB-T standard, such as FEC, interlacing, RS error correction encoding, etc. After IF processing and up-converting into the range of TV channels, signals can be transmitted through HFC and MMDS networks. Its widely used in digital TV, data broadcasting, VOD, Internet, video conference eSV, DVB-T RF modulator

Main Feature:

• Meet EN*****4 standard; support 6MHz/7MHz/8MHz band width
• Error correction follows DVB-T standard
• Operable in QPSK, *6QAM, *4QAM mode
• Support 2K/8K carrier-wave operating mode
• FEC encode supports 1/2,2/3,3/4,5/6 and 7/8
• Secure time interval supports 1/4,1/8,1/*6,1/*2
• Input interface: ASI and SPI(DS3/E3 optional)
• Input bit rate:1.5~*1.*7Mbps
• Output band width:6/7/8MHz
• RF output:*8~**0MHz
• Output level:**5dBuV~**5dBuV(step adjustable)
• **8 and **4 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 NIT mapping and sending; supports over *4 NIT mapping frequency
• Holds *0 groups of PID filtering and re-mapping function
• Support all PSI/SI data abstraction, modification and analysis
• Capable of swiSVhing/inserting SI data
• 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)
• **0dB RF test output is available (IF output is also available)
• Failure alarming
• LCD display
• With RJ*5, actualize central NMS, distant upgrade/maintenance (NMS software is optional)
• Power off memory, Wireless DVB-T System.

Performance Index

Application

• Digital wireless Head-end;
• Satellite digital television broadcasting
• Digital Terrestrial Television
• Image Control
• Video on Demand (VOD)
• Distance Learning
• Video Conference, Output band width:6/7/8MHz.