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 handheld high-definition wireless image receiving system LA-H6800RH is a new generation broadcast-level 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），内置9寸高清全视角显示屏，支持CVBS 输出接口；内 置高容量电池供电系统，操作简便 。 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 , Clarity reaches Full HD HD1080P quality, resolution (1920 * 1080 compatible with 1080I, 720P, 480P and SD), built-in 9-inch high-definition full-angle display, supports CVBS output interface; built-in high-capacity battery-powered system, easy to operate .
It is mainly used in broadcasting and broadcasting, broadcasting and broadcasting: broadcasting, sports broadcasting, social ⎝⎛叫我棋牌⎞⎠, air live, studio, mountaineering and other aspects. It can be applied to 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.
Handheld integration, easy to carry; simple operation, save time; easy to realize non-line-of-sight wireless image transmission; this product has a wide range of applications; suitable for departments and institutions with high image quality requirements, is a landmark product that replaces SD with high definition . 。 It adopts the new digital video decoding standard of H.264 with high efficiency, and the resolution reaches the full high-definition HD1080P quality, and the resolution reaches (1920 * 1080 compatible with 1080I, 720P, 480P and SD) .
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 Comes with a 9-inch high-definition full-view LCD screen to display images
l 全高清HD1080P画质 Resolution reached: Full HD HD1080P picture quality
l Military grade non-standard 128-bit dynamic AES encryption
l Comes with LCD display parameters, adjustment parameters
l Built-in LCD display percentage signal strength indicator
l With 3.5 standard CVBS output interface
l Built-in battery, continuous working for 4 hours
l With standard radio and television tripod fixed hole
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
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
Audio and video part
l Extraction format: H.264
l Audio and video output: CVBS analog interface
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: Lotus male
l Audio output physical interface: Lotus male
l 9-inch high-definition full-view display, displaying images
l Power supply: Built-in lithium battery, continuous power supply for 4 hours
l With standard radio and television tripod fixed hole
l Dimensions: 263 * 160 * 33mm
l Shape structure: Aluminum alloy shell
l Weight: 1.4kg