HD Video Wireless Communication

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COFDM Wireless Downlink

COFDM Wireless Transmitter
COFDM Wireless Receiver

TDD Duplex Wireless Transceiver

  800M-1.4G IP Links 2W/5W
  800M-1.4G IP Links 10W
800M-1.4G-2.4G H265 Tx 300mW
  800M-1.4G-2.4G H265 Rx 300mW
5.8G H265 500mW


HDMI/AV Tx Module
SDI/AHD Tx Module
H265 Rx Module
H264 Rx Module
Relay Module
1W Power Amplifier

TDD OEM Modules

DLM Transceiver Module
DLB Transceiver Module
2W Power Amplifier(800M/1.4G)
5W Power Amplifier(800M/1.4G)
10W Power Amplifier(800M/1.4G)
H264/H265 Codec Modules
Video Encoder Enclosed
HDMI/AV Video Encoder
SDI/AHD Video Encoder
H.264 Video Decoder
H.265 Video Decoder


UART Config Panel

SHD4&DR2C COFDM Receiver Module

    - 160MHz~860MHz HD video COFDM receiver module with HDMI/AV/Ethernet/USB output
    - H.264 video decoder

The SHD4&DR2C COFDM receiver module is a compact digital diversity receiver with integrated H.264 decoding, suitable for use in fluid and high-mobility applications. The receiver module accepts signals from two antennas to significantly enhance the demodulated performance and increase the operating range. The receiver module can find and lock automatically to the incoming transmission quickly according to the pre-set frequency and bandwidth. This receiver module features a range of comprehensive signal outputs including HD at 720p and 1080P, down-converted HD CVBS monitor video, and two analog audios is supported.

The receiver module also includes DVR record functionality with Micro SD card or USB disk. Additionally, the receiver module has a built-in RTSP sever that enables video streaming over Ethernet for remote software or hardware decoders. And the receiver module also enables video streaming over USB for remote Android device decoders like Smart phone or Android PAD. This allows multiple remote viewers to monitor the same video simultaneously. The receiver module also supports display characters string on the video display screen with the video together in OSD mode.

When paired with the Sihid COFDM transmitter module, the receiver module offers a comprehensive, rapidly-deployable video and audio solution that enables advanced situational awareness. It can play an essential role in delivering real-time live video from both ground and airborne mobile platforms.

  • COFDM demodulation and H.264 video decoder
  • Full HD resolution, 1080P@60fps
  • Great security by AES decryption
  • DVR record with Micro SD card or USB disk
  • Built-in RTSP server enables video streaming over Ethernet
  • Enables video streaming over USB host for remote device
  • Supports display characters string on the video display screen in OSD mode
  • Stable signal transfer in NLOS and high speed moving
  • Adjustable working frequency, band width

Paired with COFDM transmitter

The default normal features of SHD4&DR2C receiver module can be paired with all of Sihid H.264 transmitter module like SUE5&RCB, SUE5SA&RCB, SUE1&RCB, SUE2&RCB, SUE3&RCB. The HD video latency from its inputting of the transmitter to the HDMI screen displaying of the receiver is about 200~250ms.

The SHD4&DR2C module can also be paired with SUE5&RCB transmitter module(or SUE5SA&RCB module) for lowest video latency application when manufactured with specified firmware. The specified firmware enable proprietary H.264 video compression/decompression only used p-frames for lowest latency. The video latency from its inputting of the transmitter to the HDMI screen displaying of the receiver is about 50ms to 130ms.

HD Video output HDMI type “A” Connector
Composite video output 6PIN PH2.0mm connector
Audio output Embedded HDMI and 6PIN PH2.0mm connector
RF input Two SMA female
Power in 2PIN PH2.54mm Connector
USB Host 4PIN PH2.0mm Connector
Data uart 3PIN PH1.25mm Connector, TTL 3.3V
control uart 4PIN PH1.25mm Connector, TTL 3.3V
TF-Card TF-Card slot
Ethernet 6PIN PH2.0mm Connector
Keys&LEDs 2*5PIN PH2.0mm connector

Video and Audio
Video output HDMI and CVBS, Ethernet, USB
Video formats 1080P or 720P
720*480 60I(NTSC), 720*576 50I(PAL)
Video Decoding H.264
Audio output Embedded HDMI and AV audio
Audio decoding AAC
Storage USB disk or TF-Card
Decryption AES256

Demodulation Formats COFDM(DVB-T)
Carriers 2K
Bandwidth Configurable from 1MHz to 8MHz, step by 1KHz
FEC 1/2, 2/3, 3/4, 5/6, 7/8(lock automatically according to the transmitter)
Guard interval 1/32, 1/16, 1/8, 1/4(lock automatically according to the transmitter)
Constellation QPSK, 16QAM, 64QAM(lock automatically according to the transmitter)
Bitrates 0.5Mbps to 31.67Mbps(according to the transmitter)

Frequency Bands Selectable from 160MHz~860MHz
Tuning Step size 1KHz
Sensitivity -97±1dBm(BW=8MHz, QPSK, CR=2/3, GI=1/16) for one channel and add 3dBm for two channel

Monitoring and control
Comprehensive receiver setup with Sihid Config Panel or Windows PC via Control UART.

Temperature range
Full specification: 0° to +70°C Ambient
Storage: –40° to +80°C

Power requirements
Input range: 9~24VDC
Power consumption: <300mA@12V

Physical Characteristics
Board dimensions: 80.4*50.8mm

SHD4&DR2C COFDM receiver module overview.pdf

Room 608, Dongbian Commerce Building, #222 Minzhi Road, Longhua District, Shenzhen, China 518131
Email: or, Phone:+86-755-23765232, Skype ID:embestzgr
Copyright©Sihid Technology Limited 2015-2021 all rights reserved.

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