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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
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