COFDM Video Transmitter
COFDM
Three in one image data control
Txhawb mus rau 6 nodes
100KM ultra long distance wireless transmission
4K high-definition image with low latency
H265/H264 video compression
Rich interfaces
Adaptive retransmission
frequency hopping
Adjustable time slot allocation
Unidirectional image transmission channel; Bidirectional data transmission channel; Unidirectional remote control channel
One to many, many to one or two application modes
100KM ultra long distance wireless transmission, excellent non line of sight anti-interference performance.
The ultra-high bandwidth and stream support can easily handle 4K resolution video data streams. The 200ms screen to screen low latency and delay jitter sensitivity control is good, meeting the real-time requirements of video data end-to-end
H265/H264 video compression. AES encryption.
The implementation of an adaptive retransmission mechanism at the bottom layer not only greatly outperforms the retransmission mechanism at the application layer in terms of efficiency and latency, but also greatly improves the performance and user experience of the link in interference environments.
The module continuously detects the interference status of all available channels in real-time, and automatically selects and switches to the channel with the lowest interference in the current working channel, ensuring continuous and reliable communication.
The point-to-point system has a flexible and adjustable time slot allocation mechanism, and the time slot positions of each terminal are flexible and adjustable. According to the terminal data flow, the number of time slots allocated to each terminal can be equal or unequal, thus achieving the optimal overall system efficiency.
transmission distance
7KM-100KM (depending on the number of nodes)
Software Defined Radio (SDR)
The modifiability of communication underlying protocols endows the system with the ability to continuously evolve and optimize;
Improve sufficient and effective verification for chip based technology, greatly reducing the risk of chip casting;
Flexible customization to enhance design win capabilities
Orthogonal Frequency Division Multiplexing (OFDM)
Effectively eliminating multipath interference in long-distance transmission
Low Density Parity Check Code (LDPC)
The independently optimized QC-LDPC design endows the system with excellent error correction performance, greatly improving reception performance.
Private communication protocol
Optimized design for video transmission, optimized frame format and pilot greatly improve the reception performance of video transmission.
Product parameters
| parameter | value |
| Ua hauj lwm zaus band | 1.4GHz/2.4GHz |
| bandwidth | 10MHz (2 nodes), 20MHz (6 nodes) |
| Maximum emission energy | 27dBm/30dBm |
| tes taws los piav | OFDM |
| planisphere | BPSK、QPSK、16QAM |
| Forward error correction code | LDPC（1/2、2/3、3/4、5/6) |
| Duplex mode | TDD |
| Throughput rate | 19Mbps (max） |
| video interface | Network interface |
| Other interfaces | serial chaw nres nkoj, USB |
| encryption | AES128/256 |
| Ground end size | 77.8X47.3X23.5mm |
| Sky end size | 77.8X47.3X23.5mm |
| hnyav | 97g (sky end) |
| ua haujlwm voltage | 6V ~ 16V |
| ua haujlwm kub | -20℃ ~ 55 ℃ |
| Network topology | star |
| node | 1 Master node; Maximum 6 slave nodes (20MHz bandwidth); 2 slave nodes (10MHz bandwidth) |