COFDM 2W Long-Range Video Audio Transceiver for Robots

Q: Q1: What’s the range of COFDM 2W Long-Range Video Audio Transceiver?

A1: Typically 1–2 km near the ground, and up to 4–8 km in clear LOS conditions (depends on environment and antenna height).

Q: Q2: What is the system delay?

A2: Video + Audio latency: 150–300 ms ; Data latency: ~40 ms .

Q: Q3: Can it support two-way data?

A: Yes. It supports bidirectional RS232/RS485 data and two-way voice intercom simultaneously.

Q: Q4: Can it be made smaller or lower power (2W)?

A: Yes, a compact 2W version (13×10×3.7 cm) is available.

Table of Contents

Customer Inquiry about COFDM 2W Long-Range Video Audio Transceiver for Robots

“I’m looking for a transmitter and receiver, COFDM with two-way audio and one-way video, long range, I think 2W might be fine.”

This is a very typical inquiry from professionals working with ground robots, 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.

Quad Video Transmitter with Data Audio Transceiver for Robot or Mini Remote Operated Vehicle

Understanding the Customer’s Needs

The customer clearly wants:

COFDM technology for robust, anti-interference transmission.
Two-way audio for live communication between operator and robot.
One-way video to send clear, low-latency visuals from robot to operator.
2W transmit power for medium-to-long range operation (1–2 km, even close to the ground).

Such a setup is typically used in robot dogs (UGVs), bomb disposal robots, and inspection vehicles, where maintaining real-time video, control, and voice contact is critical.

Recommended Product:

👉 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 video, two-way audio, and bidirectional data into one compact module.

Key Features

One-Way Video Transmission

Supports up to 4 camera inputs (front, rear, left, right).
1080P / 720P AHD video input supported.
COFDM modulation ensures stable, non-line-of-sight (NLOS) transmission.
Low latency: 150–300 ms end-to-end.

Two-Way Audio + Data

Voice intercom: Microphone on transmitter, speaker/headset on receiver.
Bidirectional control data: Send robot commands from receiver to transmitter.
RS232/RS485 interface selectable.

Flexible Power & Frequency

Output Power: 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.

Advanced Features

Real-time 4-camera merge display or channel switching.
Analog audio in/out, customizable OSD, and multiple modulation modes.
Designed for tough environments: -40°C to +80°C operation.

Application Scenarios

Robot Dog / UGV remote control.
Firefighting / Rescue Robots.
Explosive Ordnance Disposal (EOD) robots.
Farm, mining, 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.

FAQ

Q1: What’s the range of COFDM 2W Long-Range Video Audio Transceiver?

A1: Typically 1–2 km near the ground, and up to 4–8 km in clear LOS conditions (depends on environment and antenna height).

Q2: What is the system delay?

A2: Video + Audio latency: 150–300 ms; Data latency: ~40 ms.

Q3: Can it support two-way data?

A: Yes. It supports bidirectional RS232/RS485 data and two-way voice intercom simultaneously.

Q4: Can it be made smaller or lower power (2W)?

A: Yes, a compact 2W version (13×10×3.7 cm) is available.

Q5: Why does video blur when moving fast?

A: It’s caused by dynamic video compression — a trade-off to maintain real-time low latency.

Conclusion

For users seeking a COFDM transmitter and receiver with two-way audio, one-way HD video, and long-range reliability, the
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, offering robust performance, easy setup, and outstanding communication stability — even in complex, interference-prone environments.