DLB two-way wireless transmission link module

  • OFDM bidirectional wireless transmission link module
  • Provide 2 wireless transparent Ethernet ports、3Wireless transparent transmission TTL serial port、Audio input and output interface
  • Dual antenna:The main antenna works in TDD transceiver mode,Auxiliary antenna works in receive mode
  • wireless band:2401.5~2481.5MHz、1427.9~1447.9MHz、806~826MHz,Support automatic frequency hopping within the frequency band
  • Configurable wireless bandwidth:1.4MHz、3MHz、5MHz、10MHz、20MHz,Air interface rate up to 30Mbps
  • Modulation:QPSK/QAM16/QAM64 configurable
  • Maximum transmit power:25±2dBm
  • Receiving sensitivity:-103dBm(10MHz bandwidth)
  • Support wireless link encryption and decryption
  • At the same time, it has 2 bidirectional RS232 serial ports、Point-to-multipoint、relay、Mesh ad hoc network(Custom Edition)and other communication methods
  • Configuration management can be performed through the Web UI or serial port AT commands
DLB two-way wireless transmission link module

Supports IP data transmission:Two-way wireless transparent transmission network port,4PIN 1.5mm pitch socket。
Supports IP data transmission:Two-way wireless transparent transmission network port,RJ45 socket。Ethernet1 and Ethernet2 are bridged,same IP address。
Wart1:Two-way transparent data serial port,TTL 3.3V level,3PIN 1.5mm pitch socket,Wireless transmission highest priority。
Uart2 and Uart3:Two-way transparent data serial port,TTL 3.3V level,6Then send the network port data out。Among them, Uart3 is the multiplexing serial port of control signal and digital transmission signal。
Main Antenna:Main Antenna Interface,IPEX seat。The antenna works in TDD transceiver mode。
Second Antenna:Auxiliary antenna interface,IPEX seat。Auxiliary antenna only receive but not transmit。When using DLB module communication,double take,send and receive。
Power:COFDM transmit interface,XT30PW-M socket,Support 7~28V wide voltage input,Maximum power consumption is less than 5 W。
USB:Micro USB socket,Not yet open to users。
Audio in/audio out:4PIN 1.5mm pitch socket,Audio input and output interface。
Switch:Receive/send switching signal,For docking with external PA power amplifier module。
12V out:Wide voltage input,12V regulated output(Current less than 150mA),Power supply for cooling fan。
Power LED:red power light,COFDM transmit interface。
Node LED:blue node type indicator。Always on when the module is configured as a central node,Blinks when the module is configured as an access node。
Link LED:Wireless Link Status Indicator。

    DLB module size 58*64mm(Dimensions that do not include interface components protruding from the edge of the board),Front device height less than 3.8mm,The back device height is less than 7.8mm,Thickness 1.2mm,Weight 31.7g。

External PA to increase transmission power

    The maximum transmission power of the DLB module itself is 25±2dBm,SiHida also provides matching power amplifier modules(2W/5W/10W)to increase transmission power,Meet the application requirements of different scenarios and different distances。The following figure is a schematic diagram of the docking of the DLB module and the supporting power amplifier module。

DLB two-way wireless transmission link module

DLB networking application

    The use of DLB ​​modules can realize long-distance two-way wireless data communication,Point-to-point two-way communication possible,It can also communicate bidirectionally in point-to-multipoint star network ,And relay and wireless ad hoc network Mesh mode(custom firmware)two-way communication。During point-to-multipoint communication,If communication is required between two access nodes, it must be relayed through the central node,All nodes are in the same WLAN,All access nodes communicate with the central node to share wireless working bandwidth,The module will automatically distribute the system speed evenly。The data transmission from the central node to the access node is called downlink,The data transmission from the access node to the central node is called uplink。During point-to-point or point-to-multipoint communication,The downlink and uplink share wireless working bandwidth。When the module is shipped,The default setting is the ratio of uplink rate to downlink rate=4:1。therefore,If the module is used to transmit IP Camera video data,IP camera should be connected to the access node。The module will automatically and dynamically adjust the wireless transmission rate according to the carried business data stream,When the amount of business data carried is smaller,Under the same conditions, the transmission distance will be farther。therefore,When using the device to transmit IP Camera video data,The wireless transmission distance can be increased by appropriately reducing the IP Camera video encoding bit rate。

peer-to-peer communication:

DLB双向无线传输链路模块 10

Star network:

DLB双向无线传输链路模块 11

relay mode:

DLB双向无线传输链路模块 12

Mesh wireless ad hoc network(Custom Edition):

DLB双向无线传输链路模块 13

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FAQs about Wireless Video Transmitter and Receiver

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.

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.

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

Most Wireless video transmitters now support AES128 or AES256 bit encryption and decryption, depending on which model you choose. Please contact us to verify.

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. .

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.


  1. Change the place of the receiver to avoid potential local interference from strong magnetic environments.
  2. Ensure that the antennas on both the transmitter and receiver are vertical.
  3. Please raise the antennas of the transmitter and receiver to maintain a certain height difference.
  4. Please look around to ensure that there are no obstacles between the transmitter and receiver.
  5. Change the orientation of the receiver antenna.
  6. 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.
  7. Or consider adding a relay of the transmitting between the transmitter and receiver.
  8. The antenna should be as high off the ground as possible, as the ground will absorb the transmitted signal.
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.

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.

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, swallow, teradec.

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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