2km Video Transmitter for Unmanned Excavator & UGV COFDM Low Delay 8CH 1080p FHD
2km Video Transmitter for Unmanned Excavator & UGV COFDM Low Delay 8CH 1080p FHD
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Basic Infomation
Place of Origin: Shenzhen China
Brand Name: OEM / LinkAV
Certification: CE
Model Number: LKAV-1650
High Light:

wireless video receiver


digital video receiver

Payment & Shipping Terms
Packaging Details: Brown Carton
Delivery Time: Negotiable
Payment Terms: T/T, PayPal
Supply Ability: 1000pcs/Month
Modulation: COFDM - QPSK(4QAM), 16QAM, 64QAM
Frequency: 200-2700MHz Customizable
Voltage: DC 18-32V
Dimensions: 320*200*80mm
Weight: 6kg
RF Bandwidth: 2/4/6/8MHz (adjustable)
Video Input: 8x AHD
Product Description

2km Video Transmitter for Unmanned Excavator & UGV COFDM Low Delay 8CH 1080p FHD



The LKAV-1650 is a powerful 8-channel video transmitter specially designed for unmanned excavator and UGV applications. It features 8-channel video input (1080p AHD), RS232 for control, audio embedding, high RF power and transmitting range up to 5-10km LOS.



■ COFDM modulation and H.264 encoding

■ 200-2700MHz frequency customizable

■ RF power 2W/5W/10W customizable

■ Range up to 5-10km LOS

■ Built-in 8-channel DVR

■ Low system latency

■ Supports RS232 control

■ Supports DC 18-32V power input

■ Supports AES256 encryption

■ Rugged aviation aluminum alloy housing



Modulation COFDM QPSK(4QAM),16QAM,64QAM
Frequency 200-2700MHz customizable
RF Output Power 2W/5W/10W customizable
RF Bandwidth 2-8MHz adjustable
FEC 1/2, 2/3, 3/4, 5/6, 7/8
Guard Interval 1/4, 1/8, 1/16, 1/32
RS232 Baud Rate 9600bps
Video Input Interface 8x BNC
Video Formats HDMI: 1080p/720p
Video Encoding H.264
RF Interface N Female x1
Control Method USB Programmer
Audio Interface 3-Pin Aviation Connector
Encryption AES256
Working Voltage DC 18-32V
Working Current 2.8A (@12V)
Power Interface 4-Pin Aviation Connector
Power Consumption 67.2W
Dimensions 320*200*80mm (w/o antenna)
Working Temp. -20℃~+50℃
Weight 6.00kg (w/o antenna)


Panel Description

2km Video Transmitter for Unmanned Excavator & UGV COFDM Low Delay 8CH 1080p FHD 0

1. RF antenna Interface – N female

2. Configure port – connects with USB programmer

3. RS232 port for DVR control

2km Video Transmitter for Unmanned Excavator & UGV COFDM Low Delay 8CH 1080p FHD 1

4. CH1 Port – BNC

5. CH2 Port – BNC

6. CH3 Port – BNC

7. CH4 Port – BNC

8. Status Indicator – normally red/green quick flashing

9. Power input

10. MIC Port – audio input

11. CH5 Port – BNC

12. CH6 Port – BNC

13. CH7 Port – BNC

14. CH8 Port – BNC


Latency Test

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2km Video Transmitter for Unmanned Excavator & UGV COFDM Low Delay 8CH 1080p FHD 3


2km Video Transmitter for Unmanned Excavator & UGV COFDM Low Delay 8CH 1080p FHD 4


Three Channels Triple Screen

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One Channel Full Screen

2km Video Transmitter for Unmanned Excavator & UGV COFDM Low Delay 8CH 1080p FHD 6



2km Video Transmitter for Unmanned Excavator & UGV COFDM Low Delay 8CH 1080p FHD 7

2km Video Transmitter for Unmanned Excavator & UGV COFDM Low Delay 8CH 1080p FHD 8

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


About LinkAV
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.


Our Advantages

■ 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.


Youtube: https://www.youtube.com/channel/UCn0iKGgxQtkpi2qG4U0HsZg

Official Website: http://www.LinkAVtech.com

LinkedIn: https://www.linkedin.com/company/linkav-technology/

Facebook: https://www.facebook.com/LinkAVtech/


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Tel : 0086 15817349508
Fax : 86-755-83735058
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