COFDM Wireless Video HDMI Transmitter TX Transmission HDMI HD 1080P CVBS H264 Encoder COFDM-907T

COFDM Wireless Video HDMI Transmitter

COFDM Wireless Video HDMI Transmitter TX Transmission HDMI HD 1080P CVBS H264 Encoder COFDM-907T

COFDM-907T transmitter is a high-speed data transmission device for high-quality video and audio transmission applications. In addition to the high-quality video and audio requirements of the camera, the encoding stream, channel rate requirements are very high. It can transmit H.264 high-quality codec, the receiver image resolution up to 1920X1080P/60.

Specification

Encoding	H.264,MPEG-2
Frequency Bands	170Mhz~930Mhz (adjustable frequency available on request)
Modulation Format	COFDM / DVB-T
Output Power Amplifier	1W 2W 5W 10W (Preset in the factory before delivery
Channel Band Width	6MHz 7MHz 8MHz
Subcode carrier modulation	QPSK, 16QAM, 64QAM
Error Code Rate	1/2;2/3;3/4;5/6;7/8
Guard Interval	1/32，1/16，1/8，1/4
Video Code stream	2Mbps～22Mbps
System latency	300 millisecond
Transmission Range Application	Visual range Airborne use maritime application urban Application suburban Application
Compression Format	H.264/MPEG-2
Date Input	UART（115200bit/s)
Video-Input	HDMI, CVBS (video-audio)
Audio Input	Stereo, AL Left AR right
Image Definition	1080P/I（1920*1080）compatible 720P/I,576P/I,480P/I,SD( frame [email protected] 25fram/S)
Video-Input Interface	4P 1.25 Ribbon cable interface, HDMI standard interface
Input Voltage Range	10V～35VDC
Working Temperature	-20~+65℃
Storage	-40~+70℃
Dimension	93mm×56mm×23mm(L×W×H)
Weight base unit	80g (With the fan) Including antenna 138g

LED and Frequency

LED Color	Note	Frequency
1 0 0	1st Green LED always-on, tx is working; 2nd and 3rd Blue LED is off	503Mhz
1 1 0	1st Green LED always-on, tx is working; 2nd Blue LED is on and 3rd Blue LED is off	509Mhz
1 0 1	1st Green LED always-on, tx is working; 2nd Blue LED is off and 3rd Blue LED is on	515Mhz
1 1 1	1st Green LED always-on, tx is working; 2nd and 3rd Blue LED is on	521Mhz

TX Pin Define

(also note that you need this cable to have UART TX RX function)

P1. Audio L

P2. Audio R

P3. Video

P4. GND

P5. Vcc

P6. GND

P7. TX

P8. RX

Gallery

COFDM HDMI Receiver COFDM-907r

Standard		DVB-T/DVB-T2 COFDM Standards module with Diversity 2 antenna
Modulation Format		COFDM / DVB-T
Supply Voltage		12-24VDC
Frequency Range		170MHz~930MHz (adjustable, and customized 2.4-5.8G available on your request)
Channel Band Width		6MHz / 7MHz / 8MHz
Subcode carrier modulation		QPSK,16QAM,64QAM
Guard Interval		1/8, 1/4
Error Code Rate		1/2;2/3;3/4;5/6;7/8
Input Impedance		50Ω Unbalanced
Power Consumption		Running:3W Max. (DC 12V in); Standby: 0.5W Max. (DC 12V in)
Remote Control Interface		UART / IR
Working Temperature		-20℃~+50℃
Storage Temperature		-40℃~+65℃
Audio Output		Stereo
Video aspect ratio		16: 9; 4:3
Search		Automatic Channel Search, Manual Search
Video Output Interface		CVBS, HDMI
Infrared control		Standard NEC remote infrared receiver
Dimension		112mm×67.5mm×22mm
Remarks		Advanced signal processing for mobile environment conditions

FAQ

Question 1	With how much transmitting power “watts” do we arrive at 1km ground to ground?
Answer 1	1W is enough, but we will make 2W for you to ensure.
Question 2	Is it possible to adjust the transmission power from 500mw to 10 watts? Through software or a button on the system cabinet?
Answer 2	For 500mw, 1Watts, 2Watts, or 10watts you need to change the Power amplifier inside hardware, it is not just adjusting the setting in the software. The cost and size are different.
Question 3	Is it possible 1.3 GHz band?
Answer 3	The default setting is 503Mhz, 509Mhz, 521Mhz, and 521Mhz to choose, one button on the cabinet can operate. If you need a 1.3Ghz band, you should choose another 1.4G model. The price is a huge difference.
Question 4	Can I pay with Paypal?
Answer 4	Paypal is only for small money like USD10~100. For this transmitter, only Bank transfer is acceptable. If you worry about the quality, we will show you the test video before delivery.

Test Video