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Wireless Video Transmission
COFDM Video Transmitter
1. What is COFDM Video Transmitter?
The COFDM video transmitter, a high-definition digital mobile video transmission system adopts the fourth-generation mobile communication core technology COFDM (multi-carrier modulation technology), combined with MH265 video coding technology, and independently developed equipment.
2. What is the application of the COFDM Video Transmitter?
The COFDM Video Transmitter can transmit real-time and stable high-definition audio and video under high-speed movement, in urban buildings, forests, and other occlusion conditions.
COFDM Video Transmitter is widely used in various fields such as public security fire protection, army, water conservancy, civil air defense, urban management, electric power, etc., and plays a huge role in emergency command and handling of emergencies.
COFDM Video Transmitter Application
Emergency Command
- natural disaster
- Flood Control and Drought Relief
- Earthquake rescue
- Geological disaster
- forest fire prevention
- Safe Production
- railway accident
- Air crash scene
- rescue at sea
- Electric emergency
- Environmental emergencies
- Communication Guarantee
Patrol on duty
- remote support system
- patrol command system
- unattended system
- airport patrol system
- surface patrol system
Security Monitor
- Public security “110”
- Fire “119”
- Traffic police “122”
- Civil Defense Command
- Urban Management Law Enforcement
- Water Conservancy and Flood Control
- Customs and border defense
- Terminal monitoring
- Oil field anti-theft
- military reconnaissance
Broadcasting
- Exercise live broadcast
- news live broadcast
- Live broadcast of literature and art
- Live broadcast of the event
COFDM Video Transmitter Features
- Not afraid of being blocked by trees and buildings, and has a certain diffraction ability
- The product adopts a CNC shell, which has the characteristics of shock resistance and impact resistance
- Optional lithium battery power supply
- Using advanced COFDM modulation technology
- High-speed travel-to-travel communication, up to 180Km/h
- Non-line-of-sight transmission, the line-of-sight can reach more than 100 kilometers
- All-round communication, 1080P high-definition image quality
- Adjustable video rate, up to 15Mbps
- Using the H265 encoding format
- Portable mobile receivers can be used.
COFDM Video Transmitter and Receiver Products
- 5W piggyback transmitter
- 1W portable transmitter
- Portable suitcase
- Portable remote control
- UAV remote control
- Military combat command platform
COFDM 5W piggyback transmitter
- It has broadcast-level audio and video encoding quality and supports multiple audio and video input modes
- Two-way voice transmission and data transmission function
- Aluminum alloy casing, impact resistance, good heat dissipation
- The panel displays the operating frequency and other parameters, which can be adjusted by the user on-site, intuitive and easy to use
- H.265 encoding, supports 1080P, and the code rate is automatically adjusted according to the channel bandwidth
- It has the characteristics of non-line-of-sight (NLOS—NO LINE OF SIGHT) and transmission in motion
- The working frequency is adjustable, that is, it can be set by itself within the specified frequency range
- The transmitter adopts AES encryption technology, which can prevent others from receiving signals of the same frequency
- 2MHz, 4MHz, 6MHz, 8MHz bandwidth adjustable
- Support HDMI interface input, support HDCP protocol
- Battery powered
- Dimensions (unit: mm) 220x150x60mm
- Weight: Transmitter (bare metal): 1.5kg
COFDM 1W portable video transmitter for camera
- It has broadcast-level audio and video encoding quality and supports multiple audio and video input modes
- Aluminum alloy casing, impact resistance, good heat dissipation
- The panel displays the operating frequency and other parameters, which can be adjusted by the user on-site, intuitive and easy to use
- H.265 encoding, supports 1080P, and the code rate is automatically adjusted according to the channel bandwidth
- It has the characteristics of non-line-of-sight (NLOS—NO LINE OF SIGHT) and transmission in motion
- The working frequency is adjustable, that is, it can be set by itself within the specified frequency range
- The transmitter adopts AES encryption technology, which can prevent others from receiving signals of the same frequency
- 2MHz, 4MHz, 6MHz, 8MHz bandwidth adjustable
- Support HDMI interface input, support HDCP protocol
- portable waist bag
- Battery powered
- Dimensions (unit: mm) 110 x 66.5 x 44
- Weight: Transmitter (bare metal): 150 g
COFDM Portable Handy Receiver
- With broadcast-level audio and video decoding quality, it supports multiple audio and video output modes
- Waterproof safety box, impact resistance, good heat dissipation
- The panel displays the operating frequency and other parameters, which can be adjusted by the user on-site, intuitive and easy to use
- It has the characteristics of non-line-of-sight (NLOS—NO LINE OF SIGHT) and transmission in motion
- 5G/4G transit can be customized, and remotely watched by the command center
- 17-inch bright screen, no pressure under the sun
- Battery powered
- Dimensions (unit: mm538406211mm
- Weight: Transmitter (bare metal): 13Kg
COFDM Portable Video Remote Controller Receiver
- With broadcast-level audio and video decoding quality, it supports multiple audio and video output modes
- Metal shell, impact resistance, good heat dissipation
- Easy to control and customizable
- It has the characteristics of non-line-of-sight (NLOS—NO LINE OF SIGHT) and transmission in motion
- 10-inch bright screen, no pressure under the sun
- Battery powered
- Dimensions: 360x240x235mm
- Weight: Transmitter (bare metal): less than 5Kg
COFDM tablet Video Receiver With Remote Controller
- With broadcast-level audio and video decoding quality, it supports multiple audio and video output modes
- Metal shell, impact resistance, good heat dissipation
- Easy to control and customizable
- It has the characteristics of non-line-of-sight (NLOS—NO LINE OF SIGHT) and transmission in motion
- 12-inch bright screen, no pressure under the sun
- Battery powered
- Dimensions (unit: mm27018030mm
- Weight: Transmitter (bare metal): less than 3Kg
COFDM Military Combat Command Platform Receiver
Main Parameter
- Frequency range: 300MHz—1.5GHz, can be customized, can also be customized 2.4GHz, 5.8GHz
- Channel step: 1MHz
- Transmission power: 200mW—–100W can be customized
- Data interface: RS232, 1200bps—-115200 bps transparent serial port
- Encryption method: AES128 and other encryption methods can be customized
- Modulation method: COFDM
- Configuration method: 2.4-inch touch screen, PC software
- Audio and video input interface: SDI, HDMI, AV (AHD) optional
- RF bandwidth: 1M — 8M adjustable, the step is 1M
- Video code stream: determined by RF configuration parameters, 300Kbit——-16Mbit
- Constellation diagram: QPSK, 16QAM, 64QAM
- Receiver video output interface: default HDMI, other interfaces can be customized
- Working temperature: -20℃—55℃
COFDM Wireless Video System transmission distance and transmission power amplifier relationship
| Power Amplifier | LOS Transmission Distance | NLOS Transmission Distance |
| 500mW | >10km | <300m |
| 1W | >30km | <500m |
| 5W | >60km | <1500m |
| 20W | >120km | <3000m |
| 50W | >200km | <5000m |
| 100W | >250km | <10km |
COFDM Video Transmitter Application
- Fire UAV image transmission and control
- All-terrain vehicles
- High head fire truck
- Remote Excavator
UAV / UGV COFDM Video Transmitter 3000mW Power For Long Distance Transmission
Detailed Product Description
Frequency: 300-900MHz(option), 12G/2.4G/5.8GHz(customized)
Constellation: QPSK,16QAM,64QAM,QPSK/16QAM/64QAM @ 6/7/8MHz
Voltage: DC 12V
Transmit Distance: 3km Max NLOS (manpack); 100km Max LOS (on Helicopter)
Size: 157*95*45mm
RF Output Power: 1-3 Watt
Bandwidth: 2.5MHz
Transfer Rate: 2/4/6/8Mbps
Introduction:
Such a new design 1080P HD transmitter is a powerful HD transmit system, using the core of mobile communication technology COFDM(multi-carrier modulation technique), which can transmit good quality and stable full-hd digital video signal under the condition of high-speed mobile and heavy building blocks transmission in a city environment. Support full HD 1080P H.264 encoding format and HD/SDI two HD inputs(single selection) as well support stereo balanced audio input and narrowband transmission system.
Features:
Low delay, lightweight, live broadcast;
Support Full- HD quality image;
Support 1080i/1080P HD transmission;
COFDM modulation;
Built-in with HDM or HD-SDI interface(single selection);
Support composite standard video and balanced audio input;
All parameters can be adjusted by the user;
Specification:
Power section
DC Input DC11V~DC16V
Working Current ≤[email protected]
Transmitter section:
Frequency range Output 250MHz-320MHz330MHz- 450MHz / 1000MHz –4400MHz,or can be customized according to customer’s request.
Modulation COFDM
RF bandwidth 4/8MHz(adjustable)
Power output 1-3W(adjustable),in 1dB step
SHG >52dBc
Encryption AES128/256bits
Constellation QPSK,16QAM,64QAM
FEC 1/2,2/3,3/4,5/6, 7/8
Guard Interval 1/32,1/16,1/8,1/4
Carrier 2K
Flatness Full band≤2dB,8MHz≤0.5dB
AV Interface HD/SDI(have to choose one)
CNR(weighting) 58dB
Sloping field SNR(unweighted) ≥50dB
Analog Audio
Balanced audio input range Vmax=±15V
Unbalanced audio input range Vmax=3Vpp
HD interface SDI/HD(single selection)
Encryption AES 128/265 bit / ALLTECH Basic scrambling
Standard SMPTE 425M (Level A and Level B), SMPTE 424M, SMPTE 292, SMPTE 259M-C SMPTE 272M SMPTE 299M
Input range 800±80(mV)
Versions HD 1.3
HDCP protocol Yes
Encoding support
AV rate 64, 96,112,128,160,192,224,256,320,384Kbps(adjustable)
Audio encoding mode MPEG1 Layer2
CBER <2.0E-4
Video resolution Maximum 1920×1080P/[email protected] 60P
Video coding H.264
Video rate 500kbps-16.68Mbps(autoadaptation)
Format YCbCr4:2:2
OperatingTemperature -25℃~55℃
Storage Temperature -40℃~70℃
Distance 1-40km LOS distance(on air)
1-2km NLOS distance(Ground to ground)
Appearance characteristics
Dimension 167*90*25mm
Weight 515g
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Transmission Distance
PA Power Amplifier Inside
Flight Control Protocol
Transmitter Video Input
Wireless Transmit Method
Obstacle and Sight
Encrypt and decrypt
Transmission Carrier
Data Direction
For
Frequency
Application Place
Feature
Antenna
Countries Sold
FAQs about Wireless Video Transmitter and Receiver
1. What types of video inputs port does your wireless video transmitter have?
Our wireless video transmitters have these types of video input interfaces: HDMI 1080P and 4K HDMI, CVBS composite, SDI, AHD, IP Ethernet, BNC, or tell us what type do you need, our engineer will modify to meet your demand.
2. What is the transmission distance supported by your wireless video transmitter?
Our transmission distance can be adjusted by adding power amplifiers. At present, the main ones are 15km, 30km, 50km, 80km, 100km , and 150km, which depend on the needs of customers.
Of course, the transmission distances listed above are all within LOS the line-of-sight range. If there are obstacles between the transmitter and the receiver, NLOS (the non-line-of-sight), the transmission distance is greatly reduced, only 1km or 2km, depending on the number of intermediate obstacles and the local wireless environment.
3. What is one-way or two-way? Simples vs half-duplex, full-duplex
One-way means, We can only transmit and download video or data from the wireless video transmitter to the receiver in one direction, and we cannot upload video or data from the receiver to the transmitter. This type is also called simplex.
Two-way means that, not only we can download video or data from our wireless transmitter to the receiver, but also we can upload the video or data from the receiver to the transmitter. This is very suitable for operating drones. You can not only see the real-time video transmitted from the drone, but also upload the command to control the drone or the command to control the PTZ camera to adjust the angle to the transmitter. This can operate simultaneously. This type also named half-dulpex or full-duplex.
Please check the details at the below link. https://ivcan.com/request-a-quote-of-wireless-video-transmission/#simplex
4. Does your HDMI video transmitter support encryption and receiver decryption?
Most Wireless video transmitters now support AES128 or AES256 bit encryption and decryption, depending on which model you choose. Please contact us to verify.
5. Can the frequency of the wireless video transmitter be modified after ordinary users receive the goods?
The frequencies of both the wireless video transmitter and the wireless video receiver can be modified. Users need to purchase additional parameter configuration boards.
However, considering that the corresponding power amplifier and antenna are already fixed within a certain range when the goods are sent out. If the user adjusts the frequency of the transmitter, the corresponding power amplifier, transmitter antenna and receiver antenna should also be modified to the same frequency, and these users need to be prepared. If not, it will cause the frequency of the wireless video transmitter to be different from the frequency of the antenna, making reception difficult. So please be sure to inform the correct frequency you need before placing an order.
If it is for security or confidentiality, you can use the encryption and decryption functions of the transmitter and receiver, which can ensure that your video transmission is private. .
6. I saw that your model is very similar to my needs, but I need to modify one of the parameters, is that possible?
Yes, all our product parameters can be customized according to customer's needs. If you have a special request, please let us know via the link below.
https://ivcan.com/request-a-quote-of-wireless-video-transmission/
7. What should I do if my wireless video receiver shows a weak signal?
- Change the place of the receiver to avoid potential local interference from strong magnetic environments.
- Ensure that the antennas on both the transmitter and receiver are vertical.
- Please raise the antennas of the transmitter and receiver to maintain a certain height difference.
- Please look around to ensure that there are no obstacles between the transmitter and receiver.
- Change the orientation of the receiver antenna.
- If it doesn't work, try moving the receiver to be near the transmitter's position to see if it exceeds the effective wireless transmission distance.
- Or consider adding a relay of the transmitting between the transmitter and receiver.
- The antenna should be as high off the ground as possible, as the ground will absorb the transmitted signal.
8. Can I buy modules of the transmitters and amplifiers only? I want to assemble them into my equipment.
We can, of course, supply wireless video transmitter modules and power amplifiers.
For the first sample test, I recommend that you purchase the entire set of products because our engineers have optimized the parameters to achieve the best performance.
After you have completed your test verification, you can remove the case or heat sink, install it in your device, and constantly adjust the parameters to achieve the best performance. In the future, you will be able to purchase only the modules or accessories that you require.
9. Can you take a test video for me to see before shipping?
Of course, we also understand that wireless video transmission transmitters and receivers are very expensive. You are far away from the China factory. and hope that the goods you receive are fit for the best performance.
If you pay special attention to a specific parameter or function, we can take some test videos based on the features you want to see, please feel free to contact us. It won't be shipped to you directly without your approval.
10. How to test the latency of wireless video transmitters and receivers?
To test the delay of the wireless video transmitter and receiver, we need to do two tests.
The first is to test the delay from the camera to the display.
The second is the camera, plus the display plus the wireless image transmission transmitter and the delay of the receiver.
Subtracting the two test results is the real delay of the wireless video transmitter and receiver.
As a professional long-range HDMI wireless video transmitter and receiver supplier and manufacturer in China Shenzhen, we produce the best wireless video transmitter and receiver for many years, and we got a good reputation and best reviews.
Some famous brands of wireless video transmitters, like Blackmagic, Holyland mars 300 400s, Accsoon cine eye 5g, RavenEye, Zhiyun, Inkee benbox, actiontec, CVW SWIFT 800, dahua, iogear, Artek pat-225k, microlite, nyrius, teradek.
The best budget wireless broadcast video transmitter and the receiver have many applications, for 4K tv, CCTV security camera, vehicle backup camera, PTZ video camera kit, battery-powered, computer, sony camcorder, wifi video conference system, CANON DSLR, UAV drone, pc computer laptop, projector, in-car, iPhone iPad, live streaming, GoPro sports camera, raspberry pi, Xbox.
The full HD video, audio, data link smallest 1080P wireless video transmitter and the receiver has many input and output connectors, like AV composite CVBS, HDMI, SDI, BNC, VGA, USB.
The wireless video transmitter sender TX RX frequency has 170-806Mhz, 1.2ghz, 2.4G, 5.8G, lowest but not zero latency. In order to support longer distances, the power amplifier has 10w, 20watts, and even 30W.
What is a best buy FHD wireless video transmitter at a cheap price? It should consider your details requirement, choose suitably, not expensive, if you have any doubt, please fulfil the request a quote form, our engineer will offer you a solution.
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