15km UAV Video Link COFDM Transmitter & Receiver HDMI CVBS Low Latency 1W Power AES256 Encryption
Field Test for Your Reference:
Test Products: LKAV-1614 Transmitter, LKAV-1104 Receiver
Test Company: Shanghai DongGu Airlines
Transmitter Antenna Gain: 3.5dBi
Receiver Antenna Gain: 11dBi
Transmission distance:15.7 km Smooth Video (Runing by Car, because terrain restrictions the car can not go farther, this is not the maximum transmission distance)
LKAV-1614: UAV Mini COFDM Video Transmitter
LKAV-1104: Compatible Handheld COFDM Video Receiver
The LKAV-1614 transmitter is a mini COFDM video transmitter from Wireless LinkAV, designed specifically for UAV/ Drones video transmission applications. With proven LinkAV COFDM technology and H.264 encoder technology at its core, it enables viewers high definition images ideal for establishing rugged wireless video links in all environments including mobile and urban environments. The small size makes it ideal for UAV installations, enabling true long range HD quality transmission from these increasingly popular devices for the first time.
LKAV-1104 Handheld Receiver applied advanced carrier diversity , supports high-speed mobile transmission, non~line of sight (NLOS) transmission. With 10.1 inch HD display screen, the image quality can be up to 1080P. And it has a simple operating system with a perfect image display.External Display Screen (AV Port) can support video output. It is widely applied to security, civil air defense, civil defense, fire control, emergency rescue departments and forest fire prevention, transportation, customs, railways, oil fields, mining, water conservancy, electric power, finance, television stations broadcast relay, and other important departments.
The LKAV-1104 is a fully portable handheld COFDM HD video receiver. It is compact, battery powered and light weight. It is designed for customers who require a discrete and completely portable surveillance solution. The intelligent design reduces setup time and ensures reliable reception of video and audio in NLOS conditions. Further range may achieve by selecting reception mode, booster amplifiers and antenna type. The unit can be combined with a variety of antennas and other RF accessories in order to achieve greater range.
■ Compact size and light weight
■ Portable design for easy operation
■ 10.1 inch high brightness HD display
■ Receiving signal under high-speed and NLOS conditions
■ With AV output for connecting to external large display
■ AES256 encryption
■ Built-in battery up to 4 hours endurance
|Modulation Type||QPSK (4QAM), 16QAM, 64QAM|
|Working Frequency||300-860MHz (Default 700MHz)|
|RF Bandwidth||2MHz-8MHz (Adjustable)|
|FEC||1/2, 2/3, 3/4, 5/6, 7/8|
|Guard Interval||1/4, 1/8, 1/16, 1/32|
|Video Output||AV (CVBS)|
|RF Interface||N F head (50Ω, dual channel diversity reception)|
|Storage Interface||TF card (128G max.), FAT32|
|Parameter Control Method||LED digital display panel|
|Encryption||AES128 or AES256|
|Screen Size||10.1 inch|
|Working Voltage||DC12V or battery power|
|Working Current||≤2.5A (@12V)|
① Battery indicator bar
② VGA output, reserved
③ AV output (CVBS)
④ USB 2.0, for video recording
⑤ Screen power and setting buttons
⑥ Power input, DC 12V
⑦ Antenna interface, N type female
⑧ RF setting buttons
⑨ Antenna interface, N type female
■ Over 15 years experiences in wireless communication solutions.
■ High product quality, competitive price and low MOQ
■ Excellent pre-sale and after-sale technical team.
■ Quick response and fast delivery.
■ OEM supported.
Founded in 2005, LinkAV has been dedicating to design and manufacture mobile wireless video/data transmission systems including COFDM, IP MESH and 4G-LTE series, with a group of professional engineers to provide tailor-made service (OEM). LinkAV serves a diverse, high demanding customer base from police/military to ordinary citizens, from UAV to UGV/Robots, from oil field to forest, from overseas to mainland China.
LinkAV is a China leading manufacturer (OEM) of innovative wireless communications and information systems. Our advanced data link systems are ideal for critical communications in tactical unmanned systems such as unmanned ground vehicles (UGVs), unmanned aerial vehicles (Drones, UAVs) and unmanned surface vehicles (USVs), and are designed with portability and reliability foremost in mind.
Advantages of COFDM
COFDM modulation has very strong attenuation resistance, COFDM modulation enables the transmission from the end user to a plurality of subcarriers, and the signal can be kept very much longer than the signal kept in a single-carrier system correspondingly, so COFDM has a stronger resistance for impulse noise and fast channel attenuation resistance. COFDM has higher utilization of frequency and allows overlapping orthogonal subcarriers waves as sub-channels, rather than the traditional use of guard bands separating the sub-channels, so it improves the frequency efficiency, and maximizes the use of spectrum resources.
As for high-speed data transmission, COFDM has its self-adaptive modulation mechanism which enables subcarriers to choose different modulation methods like QPSK, QAM, 16QAM or 64QAM according to different channel conditions and background noises. If the conditions are good, then adapt itself to the high-efficiency modulation, if the conditions are bad, then adapt to the anti-interference modulation. So it can reliably adapt to a high-speed data transmission.
It has strong Inter-Symbol Interference (ISI) ability, ISI is the major interference besides noise in digital communications. COFDM by using the cyclic prefix has the strong ability of ISI.
Ease of use in combination with a variety of other methods, COFDM can be used as a modulation method, besides, it can be easily combined with many kinds of multiple access technology, providing access for multiple users at the same time. You can allow multiple users to simultaneously use the COFDM information technology for transmission.
Applications of COFDM Device
COFDM modulation solved the difficult problems of "Non-Line-of-Sight" and "Mobile" wireless broadband transmission when rate is over 2Mbps, so it has been widely applied in mobile communications, video transmission and monitoring systems such as digital audio broadcasting project (DAB), high-definition TV (HDTV) broadcasting, Health Care, Mobile Communication (CDMA + OFDM), wireless LAN (IEEE 802.1la), broadband wireless access (BWA), high-quality videos in real-time monitoring (military, broadcasting, safety, maritime defense and other industries).
High-speed Real-time Mobile Wireless Transmission
The system can collect real-time emergency scene video, voice, data, etc. via a public communication network or private communication network system delivered to each commending center. Officers at all levels of command can understand the situation from the computer directly to take effective measures in real-time command. So it is widely applied to natural disasters emergency services. The system can help to save a lot of processing time and reduce the losses caused by disasters
Real-time Maritime Wireless Transmission
Real-time monitoring of maritime wireless transmission are good for coastal defense, maritime, port inspection and other industries. Real time monitoring of maritime surveillance zone can be manipulated through the whole process with live video, voice, data and control. This system can help to make maritime commanding, monitoring with better efficiency.
Live Broadcasting Video Transmission
When broadcast lively the sports games, the clarity of the video can be greatly improved by COFDM transmission.
Public Mobile Communication System
IEEE 802.1la has already been eyeing on 5GHz band and provides high-speed data transmission by OFDM.
As a conclusion, COFDM modulation solved the difficult problems of "Non-line of Sight" and "Mobile" wireless broadband transmission when speed is over 2Mbps, COFDM can capture videos at high speed and transmit high quality real time videos, make users gain exceptional freedom in news collecting, live broadcasting, real-time monitoring applications.
Q1: Are you a manufacturer or a trading company?
We're professional manufacturer specializing in wireless transmission systems.
Q2: Why should I choose you?
You'll get competitive price, prime quality, satisfied service and long warranty.
Q3: What kind of product service can I have?
OEM & ODM service.
Q4: What kind of warranty do you offer?
We offer one-year-warranty and lifelong maintenance.
Q5: What're the payment terms?
We accept bank transfer, PayPal, or cash payment.
Q6: Packaging & Shipping?
Neutral brown carton & Ship via DHL, FedEx, UPS, TNT or by air/sea.
Q7: How long for delivery?
1-3 weeks for regular model and 3-5 weeks for customized model.
Q8: Can I order 1 sample for test?
Yes, we welcome sample order, mixed samples are acceptable.
Q9: Do you have any MOQ limit?
No limit, 1pc is acceptable.
Q10: Is it OK to print my logo on the product?
Yes, please inform us formally before production and confirm the design firstly
Official Website: http://www.LinkAVtech.com