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Long-Distance HD Video Transmission Radio - China Factory Suppliers for Unidirectional and Bidirectional Data Solutions
The COFDM series long-distance HD video transmission radio, it is very suitable for reconnaissance, public security / fire protection / traffic / emergency rescue, customs border defense / maritime surveillance inspection, real-time broadcast / on-site monitoring, power line inspection / pipeline inspection, plant protection and other drones and unmanned aerial vehicles, industrial and commercial unmanned aerial vehicles Aircraft, high-end consumer drones, it is suitable for high-quality real-time mobile video transmission in complex environments such as urban areas, seas, and mountains.
Characteristic
Long-distance transmission: 1w/5w radio, with a visible distance of 20 kilometers /50 kilometers
Super anti-multipath ability, used in complex operating environment, support high-speed movement. (More than 600 kilometers per hour)
Broadcasting level / surveillance level HD video encoding: HDMI/HD-SDI/CVBS adaptive,4K/1080P/1080i/720P/576P adaptive
Bandwidth 2/4/8MHz adjustable: multi-bandwidth, multi-bit rate, multi-mode
Multiple encryptions to avoid illegal reception
Small modular design: small size, light weight, easy to integrate and use
Low power consumption, low heat
Built-in bidirectional data transmission module: 410-480/840-845/902-928MHz, 3.6-19.2kbps conventional/19.2-230.4kbps frequency hopping, 1-2w, TTL/232/485/422, 3.3-30VDC
Product Gallery
COFDM series-1WT transmitter
Interface: HDMI
Range: 1W: more than 20 kilometers
Dimensions & Weight: 10.8x8.2x2.8cm, 233g
COFDM series-5WT transmitter
Interface: HDMI
Range: 5W: more than 50 kilometers
Dimensions & Weight: 10.8x9.0x2.8cm, 289g
COFDM series-10WT transmitter
Interface: HDMI
Range: 10W: more than 50 kilometers
Dimensions & Weight: 19.6x14.6x3.4cm, 990g
COFDM series-0WR receiver
Dimensions & Weight: 13.6x11.7x3.4cm, 425g
COFDM Ground low delay CVBS transmitter
Range: 3W: above 3 km
Dimensions & Weight: 6.7x4.8x2.3cm, 80g
Specifications
| Operating Frequency | 300-350MHz or 560-610MHz (200MHz-2.7GHz can be customized) |
| Transmitting Power | 1W/5/10W |
| Receiving Sensitivity | -106dBm@2MHz |
| Modulation Coding | QPSK/16QAM/64QAM |
| Rf Bandwidth | 2-8MHz adjustable |
| Transmission Stream | 2-20Mbps adaptive |
| Forward Error Correction | 1/2, 2/3, 3/4, 7/8 |
| Protection Interval | 1/4, 1/8, 1/16, 1/32 |
| Carrier Number | 2K |
| Power Flatness | Less than 0.2db in 10MHz band |
| Shoulder Ratio | When the output power is 27 dB, the band to shoulder ratio is better than -30 dB |
| Second Harmonic | ≤ -65dB |
| Mer | 32dB |
| Transmission Distance |
1W: above 20km 5W: above 50km 10W: above 100km (sight distance) |
| Video Input | HDMI/SDI/CVBS: 720x480 60I(NTSC), 720x576 50I(PAL), 720 50P, 720 60P, 1080 50I, 1080 60I, 1080 24P, 1080 50P, 1080 60P (CVBS video input N/P adaptive) |
| Video Output | HDMI / RJ45 IP simultaneous output |
| Video Stream | 2-20Mbps (H.264/H.265) |
| Video Input Interface | HDMI/CVBS (Low latency) |
| Video Output Interface | HDMI |
| Video Coding Format | H264+(HDMI)/H.265(CVBS) |
| System Delay | Less than 180ms (CVBS end-to-end low latency less than 120ms) |
| Video Delay | Less than 250ms |
| Encryption Method | 128 bit AES encryption |
| Protection Standard | All aluminum radiator shell, anti-rust, shockproof design |
| Operating Temperature/Voltage | -30°C ~ +70°C, 11-16V |
| Operating Current | 1W/Receive/5W/10W/CVBS 3W Receive: 1.3A/0.35A/2.8A/5.9A/1.7A@12V |
| Overall Dimension |
1W/Receive/5W/10W/CVBS 3W Repeat: 10.8x8.2x2.8 / 13.6x11.7x3.4 / 10.8x9.0x2.8 / 19.6x14.6x3.4 / 6.7x4.8x2.3cm |
| Weight |
1W/Receive/5W/10W/CVBS 3W Repeat: 233g / 425g / 289g / 990g / 80g |
| Control Interface | Standard RS232 interface, 8-bit data bit, 1-bit stop bit, even-check, baud rate: 19200 |
| Transparent Data Interface | A unidirectional transparent serial port transmission, 8 data bits, 1 stop bit, support odd check, even check, wireless check, baud rate: 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200, 230400 |
| Built-In Bidirectional Data Transmission Module | 410-480/840-845/902-928MHz, 3.6-19.2kbps conventional / 19.2-230.4kbps frequency hopping, 1-2W, TTL/232/485/422, 3.3-30VDC |
| Power Consumption | ≤ 15W (1W radio), ≤ 35W (5W radio) |
Frequently Asked Questions
What is the maximum transmission distance of the COFDM video transmitter series?
The transmission range depends on the power model: the 1W transmitter supports over 20 kilometers, the 5W transmitter supports over 50 kilometers, and the 10W transmitter can reach over 100 kilometers under line-of-sight (LOS) conditions.
What video input formats and resolutions are supported?
The system features adaptive HDMI, HD-SDI, and CVBS inputs. It supports resolutions including 4K, 1080P, 1080i, 720P, and 576P.
How low is the latency of this video transmission system?
The overall system delay is less than 180ms, with CVBS end-to-end low latency reaching less than 120ms. The video delay itself is under 250ms.
Can this transmitter be used in high-speed moving environments?
Yes. Due to its superior anti-multipath capability and advanced COFDM modulation, the system supports stable transmission during high-speed movement exceeding 600 kilometers per hour.
Is the transmitted video signal secure?
Yes, the system utilizes secure 128-bit AES encryption to prevent unauthorized reception and ensure secure data transmission.
What are the primary applications of this COFDM system?
It is highly suitable for reconnaissance, public security, fire protection, emergency rescue, maritime surveillance, power line/pipeline inspection, and various commercial, industrial, and high-end consumer drone operations.