COFDM HD Digital Wireless Image Transmission Development Kit

COFDM high-definition digital wireless image transmission development kit adopts COFDM modulation technology，Completely realizes the high-definition digital wireless image transmission function，For users to learn、Evaluate and test COFDM image transmission technology。The development kit includes two parts: transmitter and receiver。The transmitter inputs digital video signals through the HDMI interface，COFDM modulation after H.264 encoding and compression(Implement baseband functions)，Then it is converted into an analog signal by the DAC and sent to the RF Transmitter and then passed through the PA(power amplifier) Amplify the signal to the antenna and transmit it out。The transmitter end of the COFDM wireless image transmission development kit includes two circuit boards: the SEM9363 encoding modulation board and the D-PA2400A power amplifier board.。The receiving end includes the FC2400A downconversion board and COFDM Demodulator module，Transmit the demodulated digital video signal to the mobile phone through the USB interface(or PC、flat)Do H.264 decompression and playback。
transmitter：

receiving end：

COFDM HD Digital Wireless Image Transmission Development Kit Functions：

• Working frequency：2.400GHz ~ 2.483GHz
• The transmitter can be set to work as a single PA single antenna.，It can also be set to dual PA dual antenna working mode.
• Single PA transmit power：23dBm(200mw)，Output power is adjustable
• Working channels can be set within 8 channels
• Channel bandwidth can be set：6M or 8M
• Modulation constellation can be set：QPSK、QAM16、QAM64
• Convolutional code rate configurable： 1/2, 2/3, 3/4, 5/6, 7/8
• COFDM modulation guard interval configurable：1/4，1/8，1/16，1/32
• Transmitter video input：Micro HDMI interface
• Video compression format：H.264
• Image clarity：1920x1080P@60、1920x1080I@60 backward compatible，Adaptable input digital video source
• Air interface rate：4.3~31.7Mbps adjustable
• The transmitter provides a TF card interface，Supports recording and transmission function
• The transmitter provides an OSD interface
• The transmitter provides a control serial port
• Support AES encryption
• The power supply voltage of the transmitter is 5.5V~16V，Current 350mA@12V
• Receiver sensitivity：8-96±1dbm at MHz，6-97±1dbm at MHz
• The receiving end provides a Micro USB interface(USB slave)，可将解调后的视频接入笔记本\平板\手机等设备进行H.264解码播放。
• Receiver supply voltage：5V(Powered via USB port)
• System delay：<200ms(When decoding and displaying under Windows，From the transmitter HDMI input to the receiver Windows decoding display)
• Transmission distance：1to 3 kilometers
• Support multipoint reception
• The transmitter SEM9363 board provides a debugging serial port、JTAG debug port
• The receiving end FC2400A board provides a debugging serial port。

SEM9363 encoding modulation board(Version B)：

    SEM9363 wireless digital image transmission encoding and modulation board inputs high-definition digital video through the HDMI interface to the Hi3516A processor for H.264 compression encoding，The compressed video signal realizes COFDM channel modulation through FPGA，Then it is converted into analog signal modulation by AD936x and sent out.。For user convenience，SEM9363 board version B integrates the Hi3516A debugging serial port、FPGA JTAG debug port、OSD interface、Control serial port、The power and other signals are concentrated on J30 and transmitted to the external interface of the D-PA2400A board.。

D-PA2400A power amplifier board：

    D-PA2400A power amplifier board contains two independent RF power amplifier modules，Amplify the power of the RF signal output by SEM9363A and output it。J3 interface of D-PA2400A board and SEM9363 board(Version B)The J30 interface is connected to，Connect the Hi3516A debugging serial port on the SEM9363 board、FPGA JTAG debug port、OSD interface、Control serial port、Power and other signals are concentrated on the board edge external interface of D-PA2400A。The two RF outputs of the SEM9363 board are connected to the two RF input interfaces of the D-PA2400A board through IPEX cables.。Working indicators of each power amplifier module on the D-PA2400A board：

• Working frequency：2.400GHz ~ 2.483GHz
• Gain：34±1dB
• Pout1dB：31dBm

FC2400A downconversion board：

    FC2400A downconversion board converts the received 2.4GHz RF signal into a 250MHz signal，Then the channel demodulation module performs COFDM demodulation and converts it into a digital signal.，Finally, the demodulated digital video signal is transmitted to the mobile phone through the USB interface.(or PC)Do H.264 decompression and playback。The RF output of the FC2400A board is connected to the RF input of the COFDM Demodulator module through an RF cable。

• Working frequency：2.400GHz ~ 2.483GHz
• RF interface：SMA antenna interface
• Receive sensitivity：8-96±1dbm at MHz，6-97±1dbm at MHz
• 8Bit parameter setting switch(Receiving and demodulation parameter settings)
• Micro USB interface(USB slave)，将解调后的视频接入笔记本\平板\手机等设备进行H.264解码播放。
• COFDM transmit interface：5V
• board size：86mm x 31mm

COFDM HD Digital Wireless Image Transmission Development Kit Shipping List：   

• COFDM 2.4GHz 200mw dual antenna transmitter
  • Aluminum alloy shell
  • Built-in SEM9363 board
  • Built-in D-PA2400A board
  • 2.42 GHz transmitting antennas
  • Micro HDMI(Type D)1 connecting cable(For connecting aerial cameras)
  • 1 OSD cable
  • 1 control serial port connection cable
  • 1 serial debugging line
  • 1 JTAG debug port connection cable
  • 1 power cable
  • 1 TF card(Built-in software and documentation, etc.)
• FC2400A 2.4GHz receiving module
  • FC2400A board
  • COFDM Demodulator module
  • 2.41 GHz receiving antenna
  • 1 USB cable
  • 1 SWD debugging line
• Hardware design documents
  • SEM9363 board circuit schematic diagram、Layout source file
  • D-PA2400A board circuit schematic diagram、Layout source file
  • FC2400A board circuit schematic diagram、Layout source file
  • Hardware User Manual
  • FPGA pin function definition
• software
  • For details, please refer to the COFDM Wireless Image Transmission Development Kit software function list above.
  • cross compiler
  • Software Development User Guide
  • Hi3516A serial port programming tool、COFDM Demodulator module windows driver installation file
• Technical services：
  Provide technical support services within 1 year after sales，Including hardware schematics/Layout Review services for customers to develop their own products based on COFDM high-definition digital wireless image transmission development kit technical solutions、Software debugging services。when necessary，Engineers can be arranged to come to assist with debugging(Travel expenses are borne by the user)。

Customized services

Our company can customize digital high-definition wireless image transmission products of different specifications according to customer application needs.：

• Other operating frequency bands and RF powers can be supported by designing PA modules of different specifications.；
• Existing designs can be modified to add other video input and output processing interfaces，Such as the transmitter AV input、USB input、SDI input，Receiver HDMI output、SDI output etc.；
• IP protocol low-latency long-distance broadband data transmission, etc.。