In the field of surveillance and security, reliable wireless video transmission is essential. Traditional Wi-Fi or analog links often fail in long-range or non-line-of-sight (NLOS) environments. This is where COFDM surveillance solutions stand out, providing stable, encrypted, and low-latency video transmission over challenging terrains.
Recently, many customers have shown interest in implementing COFDM wireless technology for vehicle-mounted cameras, 360° surveillance systems, and control room monitoring. Let’s explore the key requirements and the hidden needs that often come with deploying a COFDM surveillance solution.
Customer’s Expressed Requirements
- COFDM Wireless Solution
- Vehicle-mounted COFDM transmitters with 360° cameras.
- Centralized COFDM receiver in the control room.
- Application Scenario
- Designed for land-based surveillance and security: vehicles, ground personnel, and control centers.
- Frequency Band
- Must comply with AS923-1 frequency band (used across Asia-Pacific for wireless communication).
- Customized Frequency, we can do the working frequency from 170-6000MHz for you.
- Transmission Range
- Maximum possible long-range wireless video transmission.
- Clarification needed for both Line-of-Sight (LOS) and Non-Line-of-Sight (NLOS) coverage.
Hidden Needs for COFDM Surveillance Systems
While customers usually list the basics, many critical requirements are not mentioned explicitly. A professional COFDM surveillance solution should consider the following:
Table of Contents
1. Video Quality & Latency
- Required resolution: HD, Full HD, or 4K.
- Real-time response with low latency (<100ms).
- Efficient compression (H.265/H.264) for better bandwidth usage.
2. Mobility & Stability
- Support for high-speed vehicle movement (police, military, emergency).
- Doppler-resistant COFDM modulation for uninterrupted reception.
3. Power & Ruggedization
- Vehicle-compatible power supply (DC 12V/24V).
- Rugged design: waterproof, dustproof, shock-resistant.
4. Control Room Integration
- Multiple output formats: HDMI, SDI, IP stream (RTSP/UDP).
- Option for multi-channel reception to monitor several vehicles simultaneously.
5. Security & Encryption
- AES-128/256 encryption for secure video feeds.
- Authentication to prevent interception of surveillance data.
6. Scalability
- Expansion to cover multiple vehicles and personnel.
- COFDM Mesh Networking or relay mode for extended range.
7. Regulatory Compliance
- Legal operation within the AS923-1 frequency band.
- Certification and licensing support for local regulations.
8. Ease of Deployment
- Plug-and-play setup with existing security infrastructure.
- Portable handheld receivers for security staff in the field.
- Software integration with NVR systems or cloud-based monitoring.
Example of a Complete COFDM Surveillance Solution
A well-designed COFDM surveillance system for land use may include:
- COFDM Transmitter: Mounted on vehicles with 360° PTZ or panoramic cameras.
- COFDM Receiver: Installed in the control room with HDMI/IP output to large displays or video servers.
- Mobile Receivers: Portable units for ground security teams.
- Mesh or Relay Nodes: To extend long-range wireless video transmission in NLOS environments.
- Encryption & Security: AES-256 to ensure data protection.
- Frequency Compliance: Fully tuned for AS923-1 frequency band operation.
Conclusion
When planning a COFDM surveillance solution, customers should not only focus on transmitters and receivers but also consider:
- Video quality and latency for real-time decision-making.
- Encryption and frequency compliance for secure and legal operation.
- Scalability and integration with control rooms and mobile teams.
By addressing these hidden needs, a COFDM-based long-range wireless video transmission system can deliver stable, secure, and mission-ready surveillance performance, whether in line-of-sight or non-line-of-sight environments.
If you are exploring COFDM surveillance solutions using AS923-1 frequency band or other customized frequency, consider the complete ecosystem — transmitters, receivers, network integration, and regulatory compliance — to achieve maximum efficiency and reliability.
We currently customize two products according to the customer’s demand on COFDM Surveillance Solution for Wireless Video Transmission.
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