Wireless RF Video Audio Transmitter COFDM 30-100W

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Item specifice:

Brand Name: Safe Guard Model Number: SG-80H Frequency/Video: 300-800MHz/(optional)
Power Supply: DC12V 7.8A / AC220V 5A Impedance: 50Ω Customization: All features can be changed as your prefer!
Modulation: COFDM AV Interface: BNC (no audio in/out) Size: 400*230*160mm or other size
Weight: 8kg(2U chassis) RF Power: 30W/50W/80W/100W(option)

Product Description:

SG-30H/50H/80H is a Big RF power device special design for vehicle NLOS mobile digital image transmission. Using standard 19 inch 2U dimension appearance that very conveniently for car, boat fixed installation. Support one channel image and two audio channels. Its large rf power that depends on its long range distance transmission. Suitable for Car to car, boat to boat, vehicle to fixed station, boat to fixed station, helicopter to fixed station Which can be also as a repeater, can up to 100km LOS/NLOS distance if work with omni-directional antennas.

Wireless RF Video Audio Transmitter COFDM 30-100W

Main Feature

1. Common video interfaces, connect to an ordinary analogic camera directly.

2. Water-proof, AC 220V(can be ordered 12-28V for solar power interface), adopted different cores in order to distinguish from other interfaces, prevent from destroying the equipment by accident.

3. Use Support LOS and NLOS transmission,mobile or stationary monitoring.

Product Parameters

RF Indexs



RF Power


Transmit distance

100km max LOS distance/50-60km NLOS in suburb

Power Supply

DC12V 7.8A / AC220V 5A

Output level

30W / 50W /80W /100W (option)

Frequency stability




Phase Noise @10KHz


Audio Index


BNC (no audio in/out)

Audio output

600Ω balance/0.5v unbalance



Frequency response

50Hz to 15KHz(+/-0.5dB)

carrier frequency




FM Noise


Video index

Video Output

75 Ω unbalanced, 1.0Volt P-P

Differential gain


Differential phase






Other Index

Work environment





400*230*160mm or other size


8kg(2U chassis)

Product Application

  1) Boat to base station

 2) For police patrolling

3) Vehicle PTZ control

Wireless RF Video Audio Transmitter COFDM 30-100W

Wireless RF Video Audio Transmitter COFDM 30-100W

Wireless RF Video Audio Transmitter COFDM 30-100W

Antenna installation diagram:

Wireless RF Video Audio Transmitter COFDM 30-100W

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 projects does security monitoring mean?
Security monitoring refers to the building intelligent system equipment installation project commonly used building intercom, infrared radiation, video real-time monitoring, and real-time alarm system.
Q:What is the front end product of security?
The front part of the finger detection signal input devices, such as camera, microphone and so on, so it is not difficult to understand what is the end product.
Q:Intelligent security and smart home profit space which big?
The security monitoring system, according to the different functions of system components, the whole security monitoring system is divided into seven layers: presentation layer, control layer, processing layer, transport layer, execution layer, support layer, data acquisition layer. Of course, because of the increasing integration of devices, for some systems, some devices may exist in the system at the same time as multiple layers.
Q:Security monitoring, maintenance work or installation work well
Which is good depends on how you choose and recognize yourself. Maintenance is relatively stable, easy, dry, installation, learning more things, relatively large development space.Do the maintenance is relatively easy, only a problem to solve, if you are a novice, a constant pursuit of life, want to continue to make progress if you don't fear of hardship, recommended to choose the installation, installation of living more comprehensive, continuous learning can be personally started. Learn slowly, and you can start your own business.The three hundred and sixty line, line, a champion, the key lies in how to do their own, do a good job, installation and maintenance are good.
Q:I would like to do promotion in Baidu, my product is security, how to do, specifically how to charge?
Make a website. Affix products. Full OK. Or pay for Baidu. Advertise for you. All right. Or to add security QQ group. Brush off advertising.
Q:What line is the security monitoring power line?
In some cases,.3 root leads to RVV3*X are also usedIn the construction of rigorous design, it is best not to use ordinary civilian electrical lines, one is different and without protective sheath, twist, resistance to electromagnetic interference is not good.
Q:What are the main contents of the management of security facilities in rural credit cooperatives?
The duties of seventeenth security guards.All outlets shall establish security guards. The security personnel shall take turns by the counter personnel of the business network and assist the head of the network in the security work before, during and after the shift. Its main responsibilities are:(a) the units of the security work, to assist the unit leaders to strengthen the ideological education of workers safety education and fire education, organize workers to seriously study the spirit of the relevant documents and case notification, and improve the safety awareness of workers.(two) work business, duty security officer to supervise the work of the alarm system, location of safety facilities, communication tools, fire equipment and other equipment is normal and self-defense weapon for serious examination, find fault or abnormal situation in a timely manner to the relevant departments or leaders report, identify the reasons, troubleshooting, eliminate hidden dangers, and related records in a timely manner.(three) during the work, duty security officer to supervise the staff with locking office side door, put the weapon for self-defense; warm reception supervisor or the public security organs of the inspection personnel, check personnel work permits, identity cards, letter of introduction and earnest entourage, after confirmation, let the inspectors to enter the operating room to carry out the inspection, but not let the non system (including public sector) to enter the warehouse check. After the examination, we should seriously listen to the opinions of the inspectors and record them carefully, and report them to the unit leaders in a timely manner. (the presence of the unit leader is handled by the unit leader himself).
Q:How about the acceptance report of security monitoring?
Too little registered capital, I feel bad! Just do it like a general company! Different products, suppliers are not the same
Q:How do security control engineers get it?
Certificates can be used as an important basis for professional technicians to employ, hold, grade and promote their positions. Certificate holders will be included in the national information engineer talent pool for enterprises and institutions website inquiries. Nationwide, online search.
Q:What do you need to open a security monitoring shop?
3. to the local industrial and commercial application form for industrial and commercial business license.4., then to the tax office tax registration certificate, now seems to have to do the industry code certificate, in the quality inspection bureau.

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