LS-2000 COFDM communication vehicle real-time video back to the transmission system - emergency communications mobile communications
Typical applications
Communications broadcast trucks, mounted directly in the car vehicle wireless broadcast equipment LS-2000 system, with vehicle broadcast system switching system capable of real time multi-channel camera signals via the wireless transmitter can switch directly to the site to receive broadcast television room signal, and then through the optical fiber link transmission to television transmission tower and transmitted through open television, cable television lines can also be transmitted. People can, through homes, to see the scene in real time screen activity.
Broadcast equipment transport vehicle, with the screen in real time, clear sound quality, simple installation, flexibility and other advantages. Compared to traditional wired way through, because the transmitted signal does not pass through any third-party operators, no subsequent operating expenses, before using unwanted and China Unicom, telecommunications, mobile leased channel or fiber, no lengthy pre-event and operators contact communication, even with the operator's link, in some places it is difficult to move the position at any time be broadcast live, and operators subject to many restrictions venue links, and in some cases may not be able to achieve its link broadcast quality requirements. The vehicle system even in the course of travel of the vehicle, and can achieve real-time live broadcast, and broadcast-quality fully meet the DVD, the sound using the left and right channels of CD-quality stereo broadcast, the use of a vehicle transmission equipment company HD (SDI HD HDM HD transmitter or transmitters), is able to reach 1920 × 1080 full HD broadcast.
Use of international advanced COFDM modulation technology, as well as the dragon's unique E-Lock digital modulation technology professionals, the latest generation of wireless video transmission equipment, portable, ship, vehicle-mounted and airborne airborne style, to achieve high-speed movement. " non-sight conditions "high-speed real-time transmission of high-quality images in a large military exercises, live news gathering, live, real-time dynamic monitoring applications such manipulation users get unexpected results! You are outdoors, indoors, car, boat, air, can be high-quality digital image signals to digital radio broadcast trucks (Wireless OBVan), digital radio studio (Wireless Studio) or Command Center (Wireless Command Center) . The product is flexible and easy to use, suitable for a variety of applications, the device can be frequency (1MHz stepping), power, modulation, error correction mode, guard interval, and other parameters are set according to need.
Vehicle-mounted COFDM wireless video transmitter in full compliance MPEG-2/DVB-T technical standards, using COFDM modulation technology, wirelessly transmit out audio and video signals. Receiving device mounted on a base, using our self-developed LS-2000 Series Wireless high-definition mobile receiving device, the device meets MPEG-2/DVB-T technical standards, the device uses COFDM demodulation technique, the receiver wirelessly from a command vehicle the transmitter over the audio and video signals. Applies to vehicles - cars, boat - boats, cars - fixed point, the ship - a fixed point, the plane - a fixed point, long-distance transmission of high-definition images can also be used to make long-distance image relay, with the omni-directional antenna, depending on the condition of the air through Under transmission distances of up to 50 km or more. According to user needs, customized HD-SDI, HDM full HD transmitter, supports 1080P resolution.
Product composition (car-power transmitters, COFDM digital receiver)
1, car power transmitter [transmit power, frequency, custom];
2, vehicle suction cup omnidirectional whip antenna;
3, camera car camera system [cost] is not included in the transmission system;
4, the monitoring center receives the high-gain omni-directional fiberglass antenna;
5, the monitoring center receives the feeder cables;
6, the monitoring center receives the filter;
7, the monitoring center of the image receiver.
System Diagram
Product Features
Working frequency: 330 ~ 460MHz, 570 ~ 670MHz, 1.0 ~ 1.4GHz, 2.3 ~ 2.7GHz (1MHz Stepping)
High-quality digital video processing and MPEG2 video codec, DVD quality, SDI, HDMI support 1080P Full HD
Short coding delay of 40 ms end
Stable transmission of high-speed mobile and multi-path interference (mobile speed 240 km / h)
Space diversity reception with
Long as the exclusive E-Lock digital modulation technology professionals
Applications
Suitable for real-time mobile transmission city, sea, mountains and other high-quality images of complex environments, can be applied to broadcasting, military, fire, police, public security, safety, traffic, coastal, marine, water, air defense command, emergency command office, 110 command center, etc. industries. It can reach the scene in time, and quickly at the scene to form into a temporary command center, so that we can better coordinate the various units commanding officer. So buckle plate special television transmitter, power emergency, events and other live events industry, it must be used to overcome the original cable is connected to the manner and broadcast vehicles, but there is a limit distance requirements, etc. This makes the camera more convenient and comfortable .
Transmitter Specifications
Standard: MPEG-2/DVB-T/DMB-T technical standards
◆ Working frequency: 200MHz-2.4GHz;
◆ Modulation: COFDM or TDS-OFDM
◆ Modulation: E-Lock Professional modulation technique
◆ Carrier Mode: 2K or 8K
◆ Modulation Type: QPSK ,16-QAM or 64-QAM;
◆ compression formats: MP @ ML, 4:2:0
◆ Output Power: 10W-30W (can be customized according to the needs of power)
◆ Transmission distance: 10-30KM
◆ Channel bandwidth: 2/6/8MHZ
◆ Stream rate: 2Mbps-15Mbps
◆ error correction encoding: 1/2; 2/3; 3/4; 5/6
◆ guard interval: 1/4; 1/8; 1/16
◆ audio and video encoding: MPEG-2/H.264
◆ parameter adjustment: adjust the frequency and power
◆ Input 1 interface: standard AV signal input (BNC connector form)
◆ Input Interface 2: Optional ASI signal input
◆ Input Interface 3: Optional SDI input or HDMI (Full HD)
◆ Encryption: Optional 128-bit digital encryption function can change the password;
◆ Data Access: Optional RS232 data transmission channel, 9600bps
◆ voice channels: Optional two-way voice
◆ Video format: PAL / NTSC
◆ Audio Mode: Stereo
◆ Image resolution: SD resolution 720 × 576 (DVD standard)
◆ End to end delay: 400-600ms
◆ MTBF: 10,000 hours continuous operation
◆ BER: ≤ 10-8
◆ Working voltage: DC12V/AC220V
◆ Dimensions: 2U chassis
◆ Storage temperature: -45 - + 75 degrees
◆ Working temperature: -25 - 50 degrees
◆ Operating Humidity: 85%
Receiver Specifications
◆ receiving technology: COFDM/MPEG2/H.264
◆ Coverage: 360 ° omnidirectional
◆ Human Interface: Set parameters via remote control panels
◆ Receive Threshold:-96dBm
1 ◆ Output Interface: standard AV signal output
◆ Output 1: Optional ASI output
◆ Output 1: Optional SDI or HDMI output Full HD
◆ Power Supply: AC220V
◆ Size: IU 19-inch standard chassis / Depth: 340
◆ Storage temperature: -45 - + 75 degrees
◆ Working temperature: -25 - 50 degrees
◆ Operating Humidity: 85%
