Long Range Wireless Video Transmitter Cofdm 20w

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1 set
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500 set/month

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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:What are the sales methods of security engineering?
The overall marketing methods of security products include supplier marketing, distributor marketing, final customer marketing, and staff marketing.
Q:Installation process of security monitoring system
Hello,A complete monitoring system mainly consists of:First, front-end equipment: camera (network type, hemisphere type, needle pass, standard gun type, integrated type, industrial type, etc.)Two, transmission equipment: optical fiberThree 、 control equipment: DVR or acquisition card etc.Four, display device: monitor or splicing screen
Q:What's the profit of security monitoring project?
It's not good to do this business right nowThe price is very transparentIf you don't do the installation, it's more difficult to sell the equipmentBut profits in about 30% can do, but after a year, or included in the 30% from inside it is hard to say
Q:Begged, "security monitoring" for the record, where do you need to go? What materials need to be prepared?
(six) system equipment, equipment layout, floor plan, equipment, equipment, pipeline laying drawings, equipment and equipment, monitoring center layout, system electrical principle diagram, each part of the system line diagram (table);(seven) system surrounding environment and building plans;(eight) system expense budget report.
Q:What's the difference between security and surveillance?
The scope of security is relatively large, out of surveillance, there are perimeter alarm, intrusion detection systems
Q:Security monitoring, maintenance work or installation work well
Depends on your own understanding of the security technology, if you understand the security technology almost? No other idea, you just want to calm life, you do maintenance is quite relaxed
Q:How about the acceptance report of security monitoring?
Best answerRegistered capital is best to have more than three hundred thousand, so that credibility will be relatively high! Because many security projects, there are one hundred thousand to hundreds of thousands of different
Q:Security monitoring project 755 transmission distance can reach 500 meters?
128 series of 75-5 pure copper wire, in the absence of interference, the theory should be able to transmit 500 meters.But if it is so far, very few applicators will use video coaxial direct transmission, transmission will generally use fiber and voop way. Moreover, if the wiring environment has strong interference sources, such a distant signal, video effects will be affected.
Q:How much is the charge for security monitoring?
If the building construction units, security monitoring equipment is used for the construction of residential or commercial housing sales, security monitoring equipment costs should be included in the cost of the project. ,
Q:Will security monitoring work be dangerous?
Generally nothing to do, monitoring contacts are weak, electricity, the work environment is generally not too bad

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