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Specifications
HD portable digital wireless transmitterinput/output of A/V, ASI, SDI and S-Vedio
1-3 km wireless portable transmitter
HD Portable digital wireless transmitter
Outline
The wireless digital image transmission system( which conprises the wireless transmitter and receiver) adopts the advanced modulation technology COFDM and the channel codes. It combines with digital image compression MPEG2/MPEG4/H.264 multimedia network transmission technology. In condition of high-speed movement and non-line of sight, it can achieve the real time and Synchronous transmission of broadband multimedia services such as Video, Audio, data and so on. The system has features of flexible structure, wide coverage, good mobility, strong ability to combat interference and fading. It is an ideal solution for providing long distance, high quality and high efficiency of wireless real-time transmission which applied in emergency telecommunications such as commanding, emergency rescues, investigation, field battle and so on. This device is wildly applied in fields such as Public security, Armed police, Fire control, Field troops, Broadcasting television, Urban planning management, Civil air defense, Transportation, the Customs, Oil field, Mines, Water project, Electricity, Financial and so on.
As one of the Dexin’s key product lunched recent years, the wireless digital image transmitting system device supports input/output of A/V, ASI, SDI and S-Video, adopting MPEG-2 AV/TV compression, various wideband transmitting function such as 2M, 6M, 7M, 8M and it has full range of system equipment and solution.
Features
l It can transmit close-distance, continuous, and moving(non-vision distance) real-time AV signal.
l It can save audio and video.
l The emission system can simultaneously send one video, two audio.
l It adopts international leading technology to assure image quality in the transmission process.
l It can cooperate with satellite image car as a repeater.
l It adopts COFDM modulation mode, besides it has strong multipath interference rejection ability, so it can realize 180km/h within the high-speed mobile transmission in signal coverage area
The definition of transmission image can reach 720*576 25 frames/s, 1920*1080i 25 frames/s, 1920*1080i 30 frames/s, 1280*720p 50 frames/s, and 1280*720p 60 frames/s
l The transmitting distance can reach 1-3 kilometers.
Specification
RF parameter |
|
Transmitting power |
≥1W ( port number power) |
Transmitting frequency |
300MHz~800MHz,2200MHz-2500MHz(6 reserved frequency for choosing) |
Bandwidth |
2MHz, 6MHz, 7MHz, 8 MHz |
Out-band suppression |
≥50dB |
Output impedance |
50Ω |
Inter-band ratio |
≥25dB |
Output port |
N-L16 ( negative) |
Digital modulation parameter |
|
Modulation mode |
COFDM |
Correcting mode |
LDPC |
MER |
≥22dB |
BER |
≤10-8 |
AV input encoding parameter |
|
Audio |
CVBS combined video signal YPbPr HD component signal |
Audio input port |
BNC ( negative) |
Video |
left/right channel, non-balanced analog, stereo |
Video input port |
BNC ( negative) |
Image definition |
720*576; 1920*1080i; 1280*720p |
AV data formatting |
H.264 |
Miscellaneous |
|
MTBF |
≥10000hrs |
Working voltage |
DC10V~16V(camera exclusive battery) |
Environmental condition |
storage temperature -40°C~+70°C |
work temperature: -20°C~+50°C | |
relative temperature 85%( noncondensing) | |
Power dissipation |
About 13W ( without SDI port) |
About 15W (with SDI port) | |
Volume |
180×110×88(mm) |
Weight |
1.8Kg(total aluminum milled parts) |
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