Long Range Wireless Video Transmitter Cofdm 20w

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Item specifice:

Brand Name: Safe Guard Model Number: SG-S20 Frequency: 138-4400MHz (available)
Modulation: COFDM 2K QPSK Video Compression: MPEG-4/H.264 Customization: All features can be changed as your prefer!
Bandwidth: 2/2.5/4/8MHz (adjustable) Encryption: AES Video Format: PAL/NTSC auto-adaptation
Dimension: 220*140*60MM Weight: 2.3kg Power output: 20W

Product Description:

Model: SG-S20

This is a new arrival digital wireless video audio transmitter which adopts the latest technologies of COFDM modulation and MPEG-4 image compression that enables good NLOS (Non line-of -sight) transmission with DVD quality video. The transmitter is compact size with strong power amplifier for longer-range transmission. Good heat resistant with two cooling fans. Be safety with AES128/256bits. Can work well in fast-moving transmission.

Long Range Wireless Video Transmitter Cofdm 20w

Main Features

+ COFDM modulation, Stable transmission
+ MPEG-4 video compression, DVD video quality
+ Military aluminum housing ,Strong casing with built-in two cooling fans
+ Mobile and NLOS(Non line-of-sight) transmission
+ Great security by encryption of AES 128 bits
+ Low system latency
+ Modular design, compact structure, OEM design
+ Several wavebands available: VHF/L/ S
+ Can be customized to add additional features,such like HDMI/HD-SDI, data port, Ehernet and etc..

Product Parameter



 DC input


 Working Current 



 QPSK,16QAM,64QAM (optional)


 1/2,2/3,3/4,5/6,7/8 (optional)



 Guard Interval 

 1/32,1/16,1/8,1/4 (optional)


 138-4400MHz (available)

 RF power output


 A/V interface


 RF interface 

 N type


 ≤2dB(within full frequency range), ≤0.5dB(within 8MHz)

 Video Harmonic

 1Vp-p @ 75Ω, NTSC/PAL adaptive


 <2.0e-4< p="">

 Video Compression




 Video Rate


 Casing Protection

 IP66 (dustproof, rainproof)

 Work environment






Product Application

This special designed system is for long range distance for any AV equipments, has been widely used in Police Forces, First Responders, Security Services, Fire Services, Port Security, Homeland Security, Traffic Management, Police Technical Support Units, Special Forces, Military Command and Control Posts, Airport, Border Control, Major Incident Support.

1)Vehicle-fixed station

2) Manpack---VehicleLong Range Wireless Video Transmitter Cofdm 20w

Long Range Wireless Video Transmitter Cofdm 20w

Our Services

One year free warranty;
Three months for free spare parts (Replacement parts will be charged after a year);
24-h technical guidance;
One-stop ODM/OEM solution;
We provide professional system design and construction;
We have over 15 years experience's study, design and manufacturing in wireless microwave transmission area;
We are the professional plant source,so we can provide you high quality in best price.

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Q:Consult the product that I buy, can you do monitoring?
Embedded systems running for more than 10 years, professional use has been completely divorced from the computer system, as far as we are now using mobile phones, set-top boxes, satellite receivers, radar, etc.
Q:Security surveillance camera, the camera's 60 shell and 90 shell difference
60 and 90 are the diameter of the shell, and the 60 case is much smaller than the 90
Q:Want to open a small security Monitor Company, but heard people say no qualifications, no project, no one assured me of the project
You can start doing some kind of small projects, such as supermarkets, shopping malls and so on, until a certain stage, you will find a security company relatively good strength and anchored in their company, so you can use their qualification to undertake the project, concrete project amount to refer to their company's qualification, and you can how much!
Q:Does it require 3C and other certifications to produce wires for sensors such as security, surveillance, medical and electronic sensors?
It must be certified. Our company's products are certified
Q:Security industry sales channels?Security market in unlimited expansion, security products become hot
In the QQ propaganda security products need to have good writing ability, communication and patience, remain modest and courteous manner, supporting by QQ storage space for all kinds of security products and information security technical implementation plan and other security equipment, so that customers in a better understanding of security products can also understand that other security security equipment company. Communicate with other security colleagues in the QQ group, be polite, make a good impression on others, show your sincerity and honesty, so that your trust will be strengthened. Master all kinds of security related knowledge, in exchange with security counterparts, but also increased their knowledge of security. Say, do not know and cannot customer exchange, are not clear or are not ready to accept either course of words, blowing from base to false, good at helping others, answer the security QQ group inside other security issues raised by the positive peer, it can not only increase their popularity and their security products is also a kind of invisible propaganda. For a long time people will according to the degree of knowledge you master and attitude to judge your product is good or bad, and your status in the QQ group also increased, such as the QQ group who needs the procurement of products will first think of you. Conclusion: to treat others sincerely, they are always happy. Help others is to help yourself, do their own, they will do everything. Second, using e-mail products to promote. Using mail to promote marketing products, not just security industry will do so, other industries will do so, but also a kind of e-commerce marketing.
Q:District security monitoring center layout?
Layout of security monitoring center in residential district:1, residential security monitoring center and other important room should do the thing in itself, civil air defense and anti technology.
Q:What are the security devices?
But according to the customer's different requirements and purposes, can be extended to a large number of equipment: magnetometer, button, alarm, alarm center, telephone line. The front end probe can be divided into active infrared, passive infrared, smoke sensing, air feeling, vibration probe, temperature sensing, glass crushing and so on
Q:I would like to do promotion in Baidu, my product is security, how to do, specifically how to charge?
As long as the product quality is good. High performance price ratio. Don't worry about selling. What's more, your service. Thank you Hit so many words. I hope I can help you
Q:What are the main components of the global security system?
The security system (Security & Protection, System, SPS) is to maintain social public security for the purpose of intrusion using security products and other related products of the alarm system, video monitoring system, a system of entrance control system, safety inspection; or by the system is the combination or integration of electronic a system or network.
Q:Security monitoring, maintenance work or installation work well
The only problem is to solve the following, if you are new, have constant pursuit of life, want to continue to make progress if you don't fear of hardship, suggest that you choose to install, can continue to learn the things you want to learn something slowly learned can also start their own business.

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