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China COFDM Series Long Distance HD Video Transmission Radio - Suppliers and Factory for High-Quality 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 Models
COFDM series-1WT transmitter
HDMI
1W: more than 20 kilometers
(10.8x8.2x2.8cm, 233g)
COFDM series-5WT transmitter
HDMI
5W: more than 50 kilometers
(10.8x9.0x2.8cm, 289g)
COFDM series-10WT transmitter
HDMI
10W: more than 50 kilometers
(19.6x14.6x3.4cm, 990g)
COFDM series-0WR receiver
(13.6x11.7x3.4cm, 425g)
3W: COFDM Ground low delay
CVBS transmitter above 3 km
(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℃~+70℃、11-16V |
| Operating Current | 1W/Receive/5 W/10W/CVNS 3W Receive: 1.3A/0.35A/2.8A/5.9A/1.7A@12V) |
| Overall Dimension |
1W/Receive/5W/10W/CVBS3W 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/CVBS3W 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
Q: What is the transmission range of the COFDM series transmitters?
The transmission distance varies by model: the 1W transmitter supports distances above 20km, the 5W transmitter supports above 50km, and the 10W transmitter can transmit above 100km under sight distance conditions.
Q: Can the transmission system operate in high-speed moving environments?
Yes, the system features super anti-multipath capability, making it suitable for complex operating environments and supporting high-speed movement of more than 600 kilometers per hour.
Q: What video encoding formats and resolutions are supported?
It supports H264+ (HDMI) and H.265 (CVBS) video coding formats. It is adaptive to HDMI, HD-SDI, and CVBS inputs with resolutions including 4K, 1080P, 1080i, 720P, and 576P.
Q: What is the average system and video delay?
The system delay is less than 180ms, with CVBS end-to-end low latency being less than 120ms. The general video delay is less than 250ms.
Q: Is the data transmission secure?
Yes, the system implements 128-bit AES encryption to ensure secure data transmission and prevent illegal reception.
Q: What are the primary applications of this COFDM series radio?
It is highly suitable for reconnaissance, public security, fire protection, emergency rescue, border defense, maritime surveillance, real-time broadcasts, power line and pipeline inspections, agricultural drones, and commercial unmanned aerial vehicles.