Оглавление
Customer Inquiry about COFDM 2W Long-Range Video Audio Transceiver for Robots
“I’m looking for a transmitter and receiver, COFDM с двусторонним аудио и односторонним видео, большая дальность, I think 2W might be fine.”
This is a very typical inquiry from professionals working with наземные роботы, remote vehicles, and mobile command systems, where reliable long-range video and audio communication is essential. Let’s break down the requirements and the perfect product that fits them.

Understanding the Customer’s Needs
The customer clearly wants:
- Технология COFDM for robust, anti-interference transmission.
- Двустороннее аудио for live communication between operator and robot.
- Одностороннее видео to send clear, low-latency visuals from robot to operator.
- 2W transmit power для medium-to-long range операция (1–2 km, even close to the ground).
Such a setup is typically used in роботы-собаки (в УГВ), bomb disposal robots, и inspection vehicles, where maintaining real-time video, контроль, and voice contact is critical.
Рекомендуемый продукт:
👉 Quad Video Transmitter with Data Audio Transceiver for Robot
This model from iVcan perfectly matches the customer’s requirements — a COFDM-based system that integrates видео, двустороннее аудио, and bidirectional data into one compact module.
Ключевая особенность
Односторонняя передача видео
- Поддерживает до 4 camera inputs (front, rear, левый, верно).
- 1080П / 720P AHD video input supported.
- COFDM-модуляция ensures stable, вне прямой видимости (NLOS) transmission.
- Низкая задержка: 150–300 ms end-to-end.
Two-Way Audio + Данные
- Voice intercom: Microphone on transmitter, speaker/headset on receiver.
- Bidirectional control data: Send robot commands from receiver to transmitter.
- RS232/RS485 interface выбираемый.
Flexible Power & частота
- Выходная мощность: 0.1–4W adjustable (2W ideal for 1–2 km range).
- Frequencies: 330–590 MHz for video; 902–928 MHz for data.
- Customizable for special frequency bands or applications.
Smart Interface
- WEB UI configuration for easy setup.
- HDMI, Ethernet output at receiver for monitors or control PCs.
Расширенные функции
- Real-time 4-camera merge display or channel switching.
- Analog audio in/out, customizable OSD, and multiple modulation modes.
- Предназначен для tough environments: -40°C to +80°C operation.
Сценарии применения
- Робот-собака / УГВ дистанционное управление.
- Пожаротушение / Rescue Robots.
- Explosive Ordnance Disposal (ОВП) роботы.
- Farm, добыча полезных ископаемых, or inspection vehicles.
- Police or military mobile surveillance systems.
Even when the antennas are close to the ground, this system can achieve stable long-range transmission due to COFDM’s strong diffraction ability.
Вопросы-Ответы
1 квартал: What’s the range of COFDM 2W Long-Range Video Audio Transceiver?
А1: Обычно 1–2 km near the ground, и up to 4–8 km in clear LOS conditions (depends on environment and antenna height).
Q2: What is the system delay?
А2: видео + Audio latency: 150–300 мс; Data latency: ~40 ms.
Q3: Can it support two-way data?
А: да. Он поддерживает bidirectional RS232/RS485 data и двусторонняя голосовая связь одновременно.
Q4: Can it be made smaller or lower power (2W)?
А: да, а compact 2W version (13×10×3.7 cm) is available.
Q5: Why does video blur when moving fast?
А: It’s caused by dynamic video compression — a trade-off to maintain real-time low latency.
Заключение
For users seeking a Передатчик и приемник COFDM с двустороннее аудио, one-way HD video, и long-range reliability, тот
Quad Video Transmitter with Data Audio Transceiver for Robot
is one of the best all-in-one solutions available.
It’s engineered for robotic and ground vehicle systems, предложение robust performance, easy setup, и outstanding communication stability — even in complex, interference-prone environments.
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Видеоресивер Quad HDMI с двусторонним голосовым приемопередатчиком
Трансмиссия робота

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