NEW Vehicle-mounted SD COFDM wireless video transmission system

Product introduction:

ST6200CZA vehicle-mounted wireless image real time transmission system is broadcast-grade high definition real time transmission system. It adopts the current leading COFDM modulation technology. It has narrow air bandwidth (8 MHZ) and strong anti-multipath interference capability, combining with foreign advanced diversity reception technology, overcomes the perplex of multi-path reflection and shield caused by analog technology and conventional modulation techniques, to realize high-speed photography and real-time transmit high quality image in NLOS or complicated working environment. AV coding adopt MPEG-2 standard, definition reach to DVD resolution ratio（720*576@ PAL / 720*480@ NTSC）. The advantage of the product includes clear image quality, good color performance and smooth image.

Product feature:

MPEG-2 standard high quality audio video NLOS wireless transmission; with real color rendition and comfortable perception. It is most suitable for economical project, meeting normal surveillance security & protection market(NLOS image real time transmission).

COFDM anti-electromagnetic interference performance:

It has superior performance against frequency selective fading or narrow bandwidth interference and signal waveform interference. It has strong anti-fading ability, through each sub-carrier joint coding. In single carrier system(digital microwave, spread spectrum system, etc), single decline or interference will result in all communication link failure. But in multiple carrier COFDM system, only a few sub-carriers will be interfered What’s more, these sub-channels can adopt ECC to correct error, to guarantee the transmission low error rate.

COFDM anti-multipath fading performance:

It can confront signal waveform interference effectively., suitable for multi-path environment and fading channel high-speed data transmission. When the frequency selective fading appear in the channel because of multi-path transmission, only the sub-carrier, which fell over the band depression, and the information carried will be affected. Other sub-carriers will not be affected. Thus, the system total error rate performance will be much better.

Vehicle-mounted equipment application:

Used in man to car ,man to control center. This equipment has transmit power and long transmit distance ,can do a wide range of mobile high definition image transmission, distance can up to 50km in line of sight.

Product advantages:

1.Working frequency: 138MHz～999MHz(customized)

2. High quality digital video processing, MPEG-2 video compression, DVD video quality

3. Ultra-short coding delay, 300ms

4 Stable av transmission under high-speed mobile and multi-path interference environment

5. Powerful NLOS transmission ability

6. Transmission power: 10～30W(customized)

7,tv wireless transmitter. Space diversity reception ability

8 Dual antennas reception, stable signals, smooth image

9. Double circuit standard CVBS video output

10 .Standardization crate design, easy to use and install

11. Can customize all kinds of product

Product application：

This product has wide application, such as Public security, Fire control, traffic, Civildefense emergency, City management、Environment monitoring, Flood control、Electricity rescue、Railway rescue、Maritime law enforcement、Maritime surveillance inspections、Customs and Border Protection、Pier monitoring、Forest Fire、Oilfield theft、Military reconnaissance、living broadcast, and so on. It is suitable for urban area, seaborne, mountainous region and other complex environment high quality image mobile transmission.

Application mode:

Transmission path: TX~ communication command vehicle ~ local command centre ~ network to provinces and cities command centre. At the front end, workers carry the transmitter to transmit the site audio, video signals to communication command vehicle; Then, the communication command vehicle as repeater to extend the wireless signals to local command centre; Last, in the local command centre,rs 458, customers can access one channel av signals into monitor to realize real time monitoring and control. For another av signals, it can be transmitted to all provinces and cities by MAN or WAN command centre. In the command centre, customers can also access the signals into PC to view av signals and record.