COFDM Linear Power Amplifier for Wireless Video Transmission
The COFDM Linear Power Amplifier is a high-performance RF amplification module designed for professional wireless video transmission systems. It is optimized for COFDM / OFDM modulation signals, ensuring low distortion, high linearity, and stable long-range transmission performance.
This amplifier is widely used in UAV video links, drone systems, vehicle-mounted transmission, surveillance systems, and industrial wireless communication systems.
We support full OEM / ODM customization, including frequency band, output power, interface type, and mechanical design.
Table of Contents
Key Features
- High linearity design optimized for COFDM / OFDM signals
- Wide frequency range: 300 MHz to 5.8 GHz (customizable)
- Output power up to 100W (depends on model)
- Low distortion RF amplification for stable video transmission
- Built-in protection: overheat, VSWR, and over-current protection
- Industrial-grade reliability for harsh environments
- OEM / ODM customization available
- Compact and integration-friendly design
Frequency Options
Available frequency bands:
- 300–320 MHz
- 350–390 MHz
- 400–470 MHz (most popular)
- 500–600 MHz
- 600–700 MHz
- 800–900 MHz
- 1.2 GHz
- 1.3 GHz
- 2.4 GHz
- 5.8 GHz
Custom frequency bands are available upon request for OEM projects.
| Category | Option | Available Range / Choices | Notes |
|---|---|---|---|
| Frequency Band | Working Frequency | 300–320 MHz / 350–390 MHz / 400–470 MHz / 500–600 MHz / 600–700 MHz / 800–900 MHz / 1.2 GHz / 1.3 GHz / 2.4 GHz / 5.8 GHz | Custom frequency available |
| Bandwidth Type | Narrowband / Wideband / Custom band | Depends on system design | |
| RF Output Power | Power Level | 1W / 2W / 5W / 10W / 20W / 40W / 50W / 100W | Higher power requires enhanced cooling |
| Power Stability | ±0.5 dB / ±1 dB | OEM adjustable | |
| Signal Type Optimization | Linearity Mode | Standard / High Linearity / Ultra Linear | Optimized for COFDM/OFDM |
| DPD Support | Optional / Available in high-end models | Digital Pre-Distortion | |
| RF Interface | Input / Output Connector | SMA / N-Type / TNC / MCX / MMCX | Default: SMA |
| Impedance | 50Ω standard | Industry standard | |
| Control Interface | Power Control | TTL ON/OFF / UART / GPIO / I2C (custom) | Remote control optional |
| Power Adjustment | Fixed / Adjustable / Remote tuning | OEM firmware option | |
| Power Supply | Input Voltage | DC 5V / 9–12V / 12–24V / 24–28V / 9–36V wide input | Depends on power level |
| Protection | Reverse polarity / Over-voltage | Standard built-in protection | |
| Cooling System | Cooling Method | Passive heatsink / Active fan / Industrial enclosure / Waterproof cooling | Depends on power |
| Thermal Design | Standard / Enhanced / Military-grade | For high-power models | |
| Mechanical Design | Enclosure Type | PCB only / Aluminum case / Shielded metal box / Ruggedized housing | OEM customizable |
| Size | Standard / Compact / Ultra-compact | UAV version available | |
| Weight Optimization | Standard / Lightweight UAV version | Optional | |
| Protection Functions | RF Protection | VSWR protection / Overheat protection / Over-current protection | Standard in all models |
| Monitoring | RSSI / Power detection / Temperature monitoring | Optional telemetry | |
| System Integration | Compatible Systems | COFDM transmitter / SDR systems / IP encoder / HDMI / CVBS systems | Multi-system support |
| Installation Type | UAV / Vehicle / Fixed station / Portable | Application-based design | |
| Environmental Specs | Operating Temp | -20°C to +70°C / Industrial -40°C optional | Depends on design |
| Waterproof Rating | None / IP54 / IP65 / IP67 | Optional rugged version | |
| OEM/ODM Services | Branding | Logo printing / Label / Custom enclosure | Full OEM support |
| Firmware | Custom control firmware / protocol adaptation | Available | |
| RF Design | Custom frequency plan / gain structure | Engineering required | |
| Production | Prototype / Small batch / Mass production | MOQ supported |
Output Power Options
Choose the appropriate power level based on transmission distance requirements:
- 1W
- 2W
- 5W
- 10W
- 20W
- 40W
- 50W
- 100W (requires enhanced thermal design)
Higher power models include reinforced heat dissipation and protection circuits for continuous operation.
Technical Advantages
1. Optimized for COFDM Systems
Unlike standard RF amplifiers, this module is specifically designed for COFDM modulation, ensuring minimal signal distortion and improved BER performance.
2. High Linearity Performance
Maintains signal integrity even under high power operation, making it ideal for high-quality video transmission.
3. Stable Long-Range Transmission
Supports stable RF output for long-distance wireless video links in complex environments.
4. Industrial Reliability
Designed for UAV, vehicle, and field deployment with strong anti-interference capability.
Interface Options
RF Input / Output
- SMA (default)
- N-Type
- TNC
- MMCX / MCX (compact design)
Control Interface
- TTL power control
- UART serial control
- GPIO trigger
- Custom digital control interface (OEM available)
Power Supply Options
- DC 5V
- DC 9–12V
- DC 12–24V (standard industrial version)
- DC 24–28V (high power models)
- Wide voltage input (9–36V optional)
Cooling Options
- Passive heatsink cooling (low power models)
- Aluminum heatsink design
- Active fan cooling system
- Industrial-grade metal enclosure with thermal pad
- Waterproof cooling structure (IP65/IP67 optional)
Applications
This COFDM power amplifier is widely used in:
- UAV / Drone video transmission systems
- Wireless surveillance systems
- Vehicle-mounted video links
- Military and security communication systems
- Industrial wireless data transmission
- Long-range COFDM video links
OEM / ODM Customization Services
We support full customization for professional RF integration projects:
- Custom frequency design
- Custom output power levels
- PCB size and structure customization
- OEM branding (logo, label, enclosure)
- Integration with COFDM transmitters
- Custom firmware and control logic
- Private RF system development
Quality & Reliability
All modules are manufactured with industrial-grade components and tested under strict RF performance standards to ensure:
- Stable long-term operation
- Low signal distortion
- High thermal reliability
- Strong anti-interference capability
Why Choose Our COFDM Power Amplifier?
- Specialized design for COFDM video systems
- Wide frequency and power customization
- Proven performance in UAV and industrial applications
- Strong OEM/ODM engineering support
- Fast prototyping and mass production capability
FAQ
Q1: Is this amplifier compatible with all COFDM systems?
Yes, it is designed to work with most COFDM and OFDM-based wireless video transmission systems.
Q2: Can I customize frequency and power?
Yes, both frequency and output power can be fully customized according to your project requirements.
Q3: Is it suitable for drone applications?
Yes, lightweight and high-efficiency versions are available specifically for UAV systems.
Q4: Do you provide OEM branding?
Yes, we support logo printing, enclosure customization, and private labeling.
Order Information
For OEM orders or custom specifications, please contact our engineering team with your requirements:
- Frequency band
- Output power
- Application scenario
- Quantity requirement
We will provide a tailored RF solution and quotation.
Customer Application Case
We provide customized COFDM linear power amplifier solutions for professional wireless video transmission systems. Below is a typical UAV project example demonstrating real-world performance and integration capability.
20 Watts PA 3800-3900MHz (3850+-50MHz 3.8-3.9GHz)
