是公司生产的新一代广播级高清晰度图像实时接收系统。 The portable high-definition wireless image receiving system LA-H6800RB is a new generation of broadcast-grade high-resolution image real-time receiving system produced by the company. 高效压缩 H.264 新数字视频解码标准 ，清晰度达到全高清HD1080P画质，分辨率达到（1920*1080兼容1080I、720P、480P及标清），支持数字接口及模拟接口；有数字高清HDMI 输出接口、模拟CVBS复合输出接口；融入USB移动录像存储功能，随时随地，想录就录；具有画质细腻、成色优秀、丰富的颜色调控能力等高清画质特点。 Adopting the current leading COFDM demodulation technology, relatively narrow-band air frequency occupation (2 / 2.5 / 4 / 8MHz) and strong anti-multipath interference ability, combined with foreign advanced diversity receiving technology, overcomes analog technology and conventional modulation technology Difficulties caused by multi-path reflection and occlusion in image transmission, to achieve high-speed motion shooting and receive high-quality images in real-time under non-line-of-sight (non-line-of-sight) conditions; using the new digital video decoding standard H.264 with high efficiency compression , The resolution is up to Full HD HD1080P, the resolution is up to (1920 * 1080 compatible with 1080I, 720P, 480P and SD), supporting digital interface and analog interface; it has digital high-definition HDMI output interface, analog CVBS composite output interface; integrated into USB mobile video Storage function, recording whenever and wherever you want; with high-definition image quality features such as exquisite picture quality, excellent color formation, and rich color control capabilities.
Mainly used in radio and television broadcasting, radio and television live broadcasting: broadcasting, sports broadcasting, social ⎝⎛叫我棋牌⎞⎠, air live, studio, mountaineering and other aspects. Can be used in public security, fire protection, traffic police, civil air defense emergency, urban management law enforcement, environmental protection monitoring, three defense emergency, water conservancy flood prevention, power rescue, railway rescue, maritime law enforcement, sea surveillance inspection, customs border control, terminal monitoring, forest fire prevention, oil field anti-theft Military reconnaissance, TV broadcasting, etc .; suitable for real-time mobile transmission of high-quality images in a variety of complex environments such as urban areas, seas, and mountains.
The portable suitcase is easy to carry; easy to operate and save time; easy to realize non-line-of-sight wireless image transmission; this product has a wide range of applications; suitable for departmental institutions with high image quality requirements; it is a landmark product that replaces SD with high definition Adopting the new digital video decoding standard of H.264 with high efficiency, the resolution reaches the full high-definition HD1080P quality, and the resolution reaches (1920 * 1080 compatible with 1080I, 720P, 480P and standard definition).
COFDM anti-electromagnetic interference performance
It has excellent performance against frequency selective fading or narrow-band interference and interference between signal waveforms. It has strong anti-fading ability through the joint coding of each subcarrier. In a single carrier system (such as digital microwave, spread spectrum microwave, etc.), a single fading or interference can cause the entire communication link to fail, but in a multi-carrier COFDM system, only a small part of the subcarriers will be interfered with, and these subcarriers The channel can also use error correction codes for error correction to ensure a low bit error rate for transmission.
COFDM anti-multipath fading performance
It can effectively combat the interference between signal waveforms, and is suitable for high-speed data transmission in multipath environments and fading channels. When frequency selective fading occurs in the channel due to multipath transmission, only the subcarriers that fall in the band depression and the information they carry are affected, and the other subcarriers are not damaged, so the overall bit error rate performance of the system is better many.
Application form of receiving equipment
It is suitable for field-to-vehicle reception, field-to-room reception, aerial image transmission, and wireless image transmission on drones.
l 11.6-inch full-view HD screen display
l 全高清HD1080P画质（1920*1080） Resolution reached: Full HD HD1080P quality (1920 * 1080)
l USB移动录像存储功能 Integrate USB mobile video storage function
l Built-in lithium battery can continuously power for 6 hours
l Battery charge percentage display
l Military grade non-standard 128-bit dynamic AES encryption
l LCD display parameters, adjustment parameters
l LCD liquid crystal display percentage signal strength indication
l With HDMI digital output interface
l With CVBS composite output interface
l Working band 2 / 2.5 / 4 / 8MHz LCD adjustable
l Extremely short system latency: 300 ms
l Strong NLOS non-line-of-sight transmission capability
l Dual antenna reception, stable signal and smooth image
l Simple and convenient to use
l Various forms can be customized according to customer requirements
RF demodulation part
l 300MHz～ 900 MHz Receiving frequency: 300MHz to 900 MHz
l Demodulation technology: COFDM
l Channel bandwidth: 2 / 2.5 / 4 / 8MHz
l Encryption method: 128-bit AES key is dynamically adjustable
l Receiving sensitivity: ≤-99dBm @ 4MHz, ≤-97dBm @ 8MHz
l Signal strength: LCD indication of the strength of the received signal percentage
l Receiving polarization: vertical polarization, dual antenna reception
l Receiving technology: Space diversity receiving technology
l Filtering technology: Built-in high-performance cavity filtering technology
Audio and video part
l Extraction format: H.264
l Audio and video output: Digital HDMI, analog CVBS audio and video, USB mobile disk
l Image resolution: HD1080P (1920 * 1080), compatible with 1080I, 720P, 480P and standard definition
l Image frame rate: standard 24, 50, 60 frames / second, compatible with other frame rates
l Video output physical interface: HDMI standard interface, BNC female, USB
l Audio output physical interface: HDMI standard interface, BNC female, USB
l 寸全视角高清屏显示 11.6 -inch full-view HD screen display
l Battery charge percentage display
l 录像存储功能 USB video storage function
l RF interface: N-shaped / L16 female
l Power supply: built-in DC 12V high capacity lithium battery
l Dimensions: Standard carrying case 375 * 256 * 135mm
l Weight: 4.8kg