Hincn Limited
Hincn Limited
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SDI Analog High Definition Input COFDM Transmitter Module With AES256 Encryption
Brief introduction:
The SDI COFDM transmitter module has SDI/AHD (AV compatible) input interface, adopts COFDM modulation and H.265/H.264 encoding technology, which can complete video audio transmission with low latency in high-speed movement and non-line-of-sight (NLOS) conditions. The transmitter module consists of two boards (video codec board and COFDM modulator board). It also provides one transparent transmission serial port (unidirectional).
Input/ Output ports:
| HD Video input | SDI, MMCX Connector |
| AHD Video input | 4PIN PH1.25mm Connector |
| TTL data uart | 3PIN PH1.25mm Connector |
| TTL control uart | 4PIN PH1.25mm Connector |
| Power in | 2PIN PH2.0mm Connector |
| RF output | IPEX |
Technical Specifications:
| SDI Analog High Definition Input COFDM Transmitter Module With AES256 Encryption | |
| Model number | HCT225-M |
| Modulation | |
| Modulation | COFDM(DVB-T) |
| Number of Subcarriers | 2K |
| Wireless bandwidth | 1MHz~8MHz adjustable,1KHz step forward |
| Frequency | 160MHz~4GHz |
| FEC | 1/2, 2/3, 3/4, 5/6, 7/8 |
| Guard interval | 1/32, 1/16, 1/8, 1/4 |
| Constellation | QPSK, 16QAM, 64QAM |
| Bitrate | 0.5Mbps to 31.67Mbps |
| RF | |
| Frequency bands | 200MHz~2300MHz |
| Tunning step size | 1KHz |
| Power out | Configurable from -93dBm to -5dBm(subject to frequency) |
| Video and Audio | |
| Video input | SDI or AHD(AV compatible), auto-detected after system start-up |
| Video formats | 1080@60P, 1080@50P, 1080@30P, 1080@25P, 1080@24P, 1080@60I, 1080@ 50I, 1080@30I, 720@60P, 720@50P, 720@30P, …… 720*480 60I(NTSC), 720*576 50I(PAL) AHD 720P@25P/30P, AHD 1080P@25P/30P |
| Video coding | H.265 |
| Audio input | Embedded SDI or AV audio(Specify Mic in/Line in) |
| Audio coding | AAC,16 bit, stereo, 32Kbps |
| Encryption | AES256 |
| Others | |
| Monitoring and control | Comprehensive setup with our Config Panel or other device via control UART. |
| Temperature range | Full specification: 0° to +70°C Ambient Storage: –40° to +80°C |
| Dimensions | 70*45*13mm(not including connectors out of the board) |
| Input range | 7~24VDC |
| Power consumption | <350mA@12V |
| Latency | H264 low-latency mode: 50ms~150ms H265 normal latency mode: 200ms~250ms |
Remark *AHD: Analog High Definition
The SDI COFDM transmitter module can operate in various functional modes with different firmware. Settings should be clearly stated before shipment. The default regular functions as below:
The default normal function of the SDI COFDM transmitter module will be paired with our HD5 receiver module. The delay of the high-definition video displayed on the HDMI screen from the transmitter input to the receiver is approximately 200 ms to 250 ms.
Specific functions implemented with different firmware: