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LA-HGD Sub Plate HD Wireless Image Transmission System

Main Products: wireless monitoring, wireless monitoring equipment, wireless video transmission, wireless monitoring system, wireless video monitoring

HD transmitter

HD receiver

Features

LA-HGD gusset type high-definition wireless image real-time transmission system is a broadcast-grade high-resolution, low-latency wireless transmission device produced by the company in response to the needs of live broadcast and rebroadcasting of radio and television stations, known as zero-latency; directly cooperates with professional cameras such as SONY All-in-one completes wireless high-definition audio and video transmission. The system adopts the current leading COFDM modulation technology, relatively narrow-band air frequency occupation (1-8MHz) and strong anti-multipath interference capability, and overcomes the problems caused by multipath reflection and occlusion of image transmission under analog and conventional modulation technologies. Realize high-speed motion capture and real-time transmission of high-quality images under non-line-of-sight (non-line-of-sight) conditions, suitable for use in complex environments; combined with the new high-efficiency compression H.264 new digital video coding standard, the resolution reaches Full HD 1080P Picture quality, resolution (1920 * 1080 compatible with 1080I, 720P, 480P), with digital SDI, HDMI dual input interface; has high-definition picture quality features such as fine picture quality, excellent color, rich color control capabilities.


     Application range

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.
Product Features
It is suitable for departments and organizations with extremely high image quality requirements. It is a milestone product in which HD replaces SD. Adopt the new high-efficiency compression H.264 digital video coding standard, the resolution reaches the full high-definition HD1080P picture quality, and the resolution reaches (1920 * 1080 compatible 1080I, 720P, 480P).
   
COFDM anti-electromagnetic interference performance
It has excellent performance against frequency selective fading or narrowband 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 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 gusset equipment
Applicable to live broadcasts ~ broadcast cars, live broadcasts ~ studios. The device directly cooperates with professional cameras such as SONY to complete wireless high-definition audio and video transmission.
Product advantages
l           Low latency, system delay is 70 ms

l          Designed for broadcasting industry applications

l          双接口 Audio and video interface: digital SDI, HDMI dual interface

l          SDI high-definition ring out interface, can monitor and display

l          The SONY V-shaped buckle is embedded in the front and rear of the fuselage, which can be directly used in the professional video camera.

l          Transmitting and receiving comes with hot shoes, tripod fixed holes

l          Military-grade non-standard 256-bit dynamic AES encryption

l          Equipment comes with LCD display parameters, adjustment parameters

l          Receiver comes with LCD liquid crystal display percentage signal strength indication

l          Adjustable working frequency band 1 ~ 8MHz LCD

l          Transmitting power: 1W

l          Stable transmission of images and voices under high-speed movement and multipath interference

l          Strong NLOS non-line-of-sight transmission capability

l          Capable of receiving space diversity

l          H.264 数字视频编码标准 Efficient compression H.264 digital video coding standard

l          Full HD HD1080P picture quality (1920 * 1080)

l          165 × 82 × 52mm (L × W × H)

l          Weight: 600g

l          Various forms can be customized according to customer requirements
Technical index

transmitter

    RF modulation section

l          300MHz~4400MHz 频率可订制 Working frequency band: 300MHz ~ 4400MHz frequency can be customized

l          Output power: 1W

l          Modulation: COFDM

l          Channel bandwidth: 1 ~ 8MHz

l          Error correction method: 1/2, 2/3, 3/4, 5/6, 7/8

l          Guard interval: 1/32, 1/16, 1/8, 1/4

l          Encryption method: 256-bit AES key is dynamically adjustable

System part
l           Compliant with H.264 technical standards

l          Stream: 1Mbps ~ 31Mbps

l          System delay: 70ms

l          Transmission distance: ground line of sight: 1 to 2 kilometers; non line of sight: 200 to 1000 meters

l          Use method: gusset

Audio and video part

l          Compression format: H.264

l          Audio and video input: Digital SDI, HDMI dual interface

l          Audio and video output: SDI ring out interface

l          Image resolution: HD1080P (1920 * 1080), compatible with 1080I, 720P, 480P

l           Image frame rate: standard 24, 50, 60 frames / second, compatible with other frame rates

  Other parts
l          Comes with LCD display and adjustment parameters

l          Power supply: Radio and TV special battery DC14.4V SONY V-shaped buckle

l          Fixing: 3 hot shoes at the bottom, tripod fixing holes

l          Dimensions: 165 × 82 × 52mm (L × W × H)

l          Weight: 600g
Receiver
RF demodulation part

l          300MHz~ 900 MHz Receiving frequency: 300MHz to 900 MHz

l          Demodulation technology: COFDM

l          Channel bandwidth: 1 ~ 8MHz

l          Encryption method: 256-bit AES key is dynamically adjustable

l          Receiving sensitivity: ≤-97dBm @ 8MHz

l          Signal strength: LCD indication of the strength of the received signal percentage

System part

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 or SDI

l          Image resolution: HD1080P (1920 * 1080), compatible with 1080I, 720P, 480P

l          Image frame rate: standard 24, 50, 60 frames / second, compatible with other frame rates

l          Video output physical interface: HDMI standard interface, BNC

l          Audio output physical interface: HDMI standard interface, BNC

    Other parts

l          Built-in LCD liquid crystal display, adjustment parameters, received signal strength indication

l          Power supply: AC 220V (standard) or DC 12V (customized)

l          480*280*45mm Dimensions: 1U, 19-inch chassis, 480 * 280 * 45mm

l          Weight: 2kg

schematic diagram


Solution Application

The overall transmission path is: radio and television staff ~ broadcast truck ~ TV station building. The front-end staff carried a professional SONY camera integrated camera to wirelessly transmit the on-site high-definition SDI or HDMI digital audio and video signals to the OB truck; the effective communication distance from the OB truck at the routine interview site is about 1 km, and the staff can arbitrarily within the effective range The video materials required for the mobile interview site will be transmitted to the broadcasting and television broadcasting vehicle in real time; the broadcasting vehicle will receive digital high-definition audio and video signals to meet the requirements of later analysis, storage, and editing; The high-definition audio and video signals are directly forwarded to the TV station building for real-time broadcast. The vehicle-mounted long-distance high-definition system can transmit from 10 to 40 kilometers away from line-of-sight; at the same time, it supports real-time broadcast of signals through satellite and other channels.
The LA-HGD system replaces the convenience and flexibility of manually pulling the audio and video cables to the interview site, free from cable attenuation and obstacles, and cooperates with the vehicle's long-distance high-definition transmission system to face sudden scenes or incidents, and the staff is faster and more Complete the interview mission outstandingly.



 

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