Sihid COFDM Wireless Downlink Receiver

The Sihid COFDM Diversity Receiver is compact digital diversity receiver with integrated H.264 or H.265 decoding in a compact and lightweight housing, suitable for use in fluid and high-mobility applications. The unit accepts signals from two antennas to significantly enhance the demodulated performance and increase the operating range. The receiver can find and lock automatically to the incoming transmission quickly according to the pre-set frequency and bandwidth. This receiver 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 also includes DVR record functionality with Micro SD card or USB disk using REC switch controls. When paired with the Sihid COFDM wireless Downlink camera transmitter, the receiver 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 or H.265 video decoder;
• Full HD resolution, 1080P@60fps;
• Great security by AES decryption;
• Modular design and highly integrated;
• Stable signal transfer in NLOS and high speed moving.
• Adjustable working frequency, band width.

Demodulation

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)

RF

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

SR110 COFDM Receiver
    - HD video COFDM wireless receiver with HDMI/CVBS/Ethernet/USB output interface
    - A built-in RTSP sever that enables video streaming over Ethernet for remote decoder
    - Enables video streaming over USB for remote Android device decoder
    - Supports display characters string on the video display screen with the video together in OSD mode. 

IO

HD Video output	HDMI type “A” Connector
Composite video output	RCA Connector
Audio output	Embedded HDMI and RCA Connector
RF input	Two SMA
Power in	3PIN PH2.54mm Connector
USB Host	Type A connector
TTL UART data(3.3V)	3PIN PH1.25mm Connector
TTL UART control(3.3V)	4PIN lockable Connector
Ethernet	RJ45
TF-Card	TF-Card slot
OSD Key	Switch key for OSD-display
Rec Key	Switch key for Video recording

Video and Audio

Video output	HDMI and CVBS, Ethernet(RTSP protocol by default, option UDP), 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

Power requirements
Input range: 7~16VDC
Power consumption: <230mA@12V

Physical Characteristics
Weight: 255g
Dimensions: 115x90x34mm

　

SR300 COFDM Receiver
    - Supports H.265 video decoding and 4K video decoding
　

IO

HD Video output	HDMI type “A” Connector
Composite video output	4PIN PH2.0mm connector
Audio output	Embedded HDMI and 4PIN PH2.0mm connector
RF input	Two SMA
Power in	2PIN PH2.0mm Connector
USB Host	Type A connector
TTL UART data(3.3V)	3PIN PH1.25mm Connector
TTL UART control(3.3V)	4PIN PH1.25mm Connector
TF-Card	TF-Card slot
OSD Key	Switch key for OSD-display
Rec Key	Switch key for Video recording

Video and Audio

Video output	HDMI and CVBS, USB
Video formats	1080P or 720P or 4K(3840*2160P) 720*480 60I(NTSC), 720*576 50I(PAL)
Video Decoding	H.265/H.264
Audio output	Embedded HDMI and AV audio
Audio decoding	AAC
Storage	USB disk or TF-Card
Decryption	AES256

Power requirements
Input range: 7~16VDC
Power consumption: <250mA@12V

Physical Characteristics
Weight: 169g
Dimensions: 91x80x30mm