COFDM無線下行發射機

COFDM 無線數位視訊發射器設計用於高清或標準畫質攝影機, 它是一款卓越的微型無線視訊發射器，旨在捕捉即時視訊, 來自視角攝影機的高品質視頻, 無人機/UGV/隨身攝影機/隱蔽物, 和運動相機. The transmitter features HDMI or SDI or AV inputs with COFDM modulation technology and H.264/H.265 encoding that complete video audio transmission in high-speed motion and NLOS (非視線) 低延遲條件. COFDM wireless transmitter delivers up to 27dBm/30dBm/34dBm(different model) of power in a small metal case weighing less than 150 克, providing long range, 可靠的高清視訊傳輸.

• COFDM modulation and H.264/H.265 video compression;
• 全高清分辨率, 1080i/P @60fps;
• Great security by AES encryption;
• Modular design and highly integrated;
• 非視距和高速移動中穩定的訊號傳輸.
• 工作頻率可調, 頻寬, 位元流速率, 射頻功率, 等等.

Now we have several models COFDM transmitter (in different RF power and video input interface with the same technology solution which lists below) ready to ship. We can also customize wireless COFDM transmitter according to your requirements based on our modules very quickly.

COFDM Transmitter Model	ST100	ST200	ST210-HDMI	ST210-SDI
視訊輸入	Mini HDMI or AV	HDMI 或 AV + 以太網絡	HDMI 或 AV	SDI or AV
視訊編碼器	H.264	H.264	H.264/H.265	H.264/H.265
Maximum RF Power	500毫瓦	1W/2.5W	1W/2.5W	1W/2.5W
能量消耗	<1A@12V	<1.3A/2.1A@12V	<1.3A/2.1A@12V	<1.3A/2.1A@12V
重量	135G	140G	137G	139G
方面	74x68x24.7mm	106×63.4x27mm	104.5x50x27mm	104.5x50x27mm

All of our COFDM wireless transmitters are consist of three modules, H264/H.265 video encoder module, COFDM modulation module and power amplifier. All of our COFDM transmitters use the same modulation module(our RCB Module),the same H264 video encoder solution in different board model. All of the transmitters can be setup with our Config Panel or Windows PC via control UART.

COFDM wireless transmitter Specification:   

IO

HD Video input	HDMI/SDI/Ethernet(Specify in different model)
Composite Video input	NTSC or PAL
資料串口	最多 115200 baud Selectable
控制串口	UART setup from Config Panel or PC or other device
Power in	DC supply
射頻輸出	SMA

調製

調製格式	COFDM(DVB-T)
營運商	2K
帶寬	可配置範圍為 1MHz 至 8MHz, 步進1KHz
FEC	1/2, 2/3, 3/4, 5/6, 7/8
保護間隔	1/32, 1/16, 1/8, 1/4
星座	QPSK, 16QAM, 64QAM
位元率	0.5Mbps 至 31.67Mbps

射頻

頻段	指定: 300～360MHz, 350～400MHz, 450～500MHz, 520～560MHz, 580～620MHz, 680～720MHz, 820～860MHz, (customizable from 200~860MHz)
調整步長	1千赫
斷電	27分貝, 30分貝, 34分貝(Specify in different model)

視訊和音訊

視訊輸入	HDMI/SDI(指定) 或CVBS, 系統啟動後自動偵測
影片格式	1080@60P, 1080@50P, 1080@30P, 1080@25P, 1080@24P, 1080@60I, 1080@ 50I, 1080@30I, 720@60P, 720@50P, 720@30P, …… 720*480 60一世(NTSC), 720*576 50一世(朋友)
視訊編碼	H.264/H.265
音訊輸入	Embedded HDMI/SDI or AV audio
音訊編碼	亞克力, 16位元, 立體聲, 32千位元組每秒
加密	AES256

表現
Video latency: about 200ms, when our COFDM transmitter is paired with the receiver, the video(1080p60) latency from its inputting of the transmitter to the HDMI screen displaying of the receiver is about 200~250ms.

Wireless transmission range: this is relative with many conditions, the following data is just for your reference. When 1W(射頻功率) COFDM transmitter paired with the receiver, 6MHz頻寬, centre frequency 590MHz, 5 dBi omni antenna with 2 metres to the groud on both sides, the LOS(視線) transmission range is about 1km to 2km. When 1W(射頻功率) COFDM transmitter paired with the receiver, 6MHz頻寬, centre frequency 590MHz, 1.5 dBi omni antenna on the UAV(flying height 100 metre), two 7 dBi omni antenna with about 2 metre to the ground, the LOS(視線) transmission range is about 10km to 20 km.

監測與控制
Comprehensive transmitter setup with Config Panel or PC or other device via Control UART.

溫度範圍
規格齊全: 0° 至 +55°C 環境溫度

電源需求
輸入範圍: 11～13VDC

ST100 Transmitter:

ST200 Transmitter:

ST210-HDMI Transmitter:

ST210-SDI Transmitter: