Two-way wireless video audio data transmitter-receiver used on the ground for 1-2 km is more popular, and we get a new inquiry. Recently, a client wanted us to customize a two-way wireless video and audio data transmission system for him, which is used on the construction site. The typical ground usage scenario is that both the transmitter and the receiver are on the ground. The transmission range required by the customer is 1-2 kilometers. If there are obstacles in the middle, a repeater can be added between the transmitter or receiver for video data and audio transfer. At the same time, in case of problems with wireless transmission, you can switch to wired transmission at any time. And there are 4-6 cameras at the transmitter position. So he chose the following one, Vcan1752, according to his requirement details, TX900-2W-15KM is recommended.
Two-way wireless video audio data transmitter-receiver used on the ground for 1-2 kilometers.
The following are the specific requirements of the customer. I will answer and explain one by one according to his specific requirements, why another style is more suitable or recommended.
Table of Contents
1. Here is my first requirement, is it bidirectional two-way on the audio and data, unidirectional one-way transmission is ok.
Video: Vehicle -> Controller (unidirectional, one-way)
Audio: Vehicle -> Controller ; Controller -> Vehicle, (bidirectional, two-ways)
Data: Vehicle -> Controller (UART interface needed); Controller -> vehicle (UART interface needed)
The model Vcan1752 you mentioned is supporting video, audio, and data.
The engineer is recommended at the below link, TX900. The NLOS test video at the below link from Youtube. https://youtu.be/X-nu-QZYc5Y
2. Video Interfacing: 4 SDI video inputs at a vehicle. One HDMI output at the controller. With all 4 videos displayed on the screen from HDMI output. Please mention the video quality of each individual stream of the 4 videos.
The model Vcan1752: The four videos are synthesized into route videos, and the overall video quality is 1080P60. If you need to see a single high-definition video, you can switch to single-video mode.
The recommended model TX900 also supports 4-6 video inputs at 1080P via the IP ethernet camera. Each of the four videos is 1080P.
Four-video test video at
3. Please mention all the functionalities of this remote.
This is the remote control of the receiver, which is used to modify the parameters of the receiver, such as frequency, bandwidth, and so on.
TX900 setting all the computer browsing, no remote control. Web UI management, https://ivcan.com/web-device-management-ui/ or AT UART command, https://ivcan.com/uart-at-command-for-wireless-video-transmitter-and-receiver/
4. Is this a card reader with an SD card in it? Or something else?
Is it for video storage purposes? I own a 1 Terabyte USB hard disk drive. Can I plug it in instead of the card reader with an SD card in it? (It is because I would prefer a 1TB storage for the incoming video)
The model Vcan1752 you mentioned: the USB interface can store video, and you can use a TF card or a U disk. I haven’t tried the 1TB one. It should not be a big problem. The commonly used one is 32GB.64GB.
The recommended model TX900 does not support recording directly, but you need an extra NVR to record. We always use VLC or RTSP player as the monitor and recording in the computer.
5. Please show me the audio in/Out ports in both vehicle and controller module
The model Vcan1752: The audio is a separate pickup, which is input through the video port of the transmitter, and there is sound when the HDMI is decoded at the receiver, without a separate audio output port.
The recommended model TX900 supports an ethernet camera with a mic and speaker, just plugin in the RJ45 on the transmitter and receiver is ok.
6. Does the recorded video contain audio? I would prefer incoming audio embedded in the recorded video.
8. The wireless video transmission range: NLOS minimum 1 Km
Depending on your local using environment, you can refer to our test video. https://youtu.be/X-nu-QZYc5Y
10. Range extender:
I require a module to extend the range (Similar to a repeater station). It will increase the range by at least 500m and allow me to work in more complex NLOS situations. It takes the signal from the controller and relays it back to the vehicle and takes the signal from the vehicle and relays it back to the controller
The situation is a bit like this. It will help overcome extreme curvature. (Extender is not fixed to the ground! The image is symbolic)
If I place the repeater in between the controller and the vehicle, it will allow me to cross a more complex NLOS environment, and give me a greater range. (I am not looking for a very high powerful transmitter to eliminate the repeater station.)
The model Vcan1752: NOT support a range extender
The recommended model TX900 supports a range extender. Customers need to purchase three sets of transceivers, one as a transmitter, the other as a receiver, and the third one can be placed as a relay in places with poor signal.
The relay is like the above picture. The drone in the sky is the extender. The transmitter and receiver are on either side of the mountain. UAVs in the sky can connect the transmitter and receiver.
Question: The transceiver at the vehicle and controller are not identical. I assume You said buying 3 units meaning they are all identical.
Answer: The transceivers are actually the same as them. The transmitter, the receiver, and the extender are all the same product. They’re transceivers and can both receive and transmit data and audio.
11. Wired Transmission:
Let’s say the wireless transmission is not possible in a certain environment. And I have to go for wired transmission. I would like to transmit all the data between the controller and the vehicle via a wired transmission (Optical Fiber). There should be a switch at the controller, which will switch the system between wireless COFDM and wired optical fiber communication. (Repeater station is not needed or applicable in optical fiber communication, as controller and vehicle are directly connected).
- Let’s say, switch on -> the controller and vehicle are connected via optical fiber cable. (If the optical fiber cable is disconnected, communication fails obviously)
- Let’s say, switch off -> the controller and vehicle are connected via wireless COFDM system. (If the optical fiber cable is connected or disconnected, doesn’t matter, because, it’s not being used, and is basically a dead weight)
The model Vcan1752 you mentioned: NOT support
The recommended model TX900 support to added extended net cable.
The ordinary network cable supports 100 meters at most. If you use optical fiber, you need to add an optical transceiver module.
Question: Will the audio and control + feedback data go through optic fiber?
Answer: Optic fiber is like a net cable, which can connect the transmitter and receiver by cable. Audio and Video are together transmissions at the same time.
Question: If two transceivers can transmit control + feedback wirelessly, they should be able to transmit control + feedback via optical fiber. Because I need to control and see the status of my vehicle when using optic fiber.
Answer: Please choose the fiber optic transceiver with RS232 RS485 data transmission.