COFDM RF Frequency Down Converter BDC – 2100–2500MHz to 350–750MHz (Customizable Design)

Our COFDM RF Frequency Down Converter BDC is a high-performance and customizable solution designed for professional wireless communication, broadcasting, UAV applications, and secure video transmission systems. Built with precision engineering, it converts input signals in the 2100–2500MHz frequency band down to 350–750MHz, ensuring reliable performance, low noise, and stable signal transmission.

This block down converter (BDC) is specifically engineered to meet the demands of modern RF systems, supporting COFDM modulation, wideband video transmission, and secure long-distance communications.

Key Features

• Customizable Frequency Range: Standard model supports 2100–2500MHz input down to 350–750MHz output, but frequency bands can be fully customized to your project requirements.
• Low Noise Figure (≤1.5dB): Ensures high-quality signal integrity for professional-grade RF applications.
• Stable Gain: 15dB standard gain with excellent linearity.
• Compact Design: Small form factor (108 × 48 × 22 mm) for easy integration into UAVs, mobile systems, or portable equipment.
• Durable Build: Designed for stable operation across -10°C to +60°C temperature ranges.
• Flexible Power Options: Operates on ≤12V/240mA DC supply, with online coaxial powering support.
• RF Interface: Equipped with N-50KFD connectors for secure and stable RF connections.
• Wide Application Range: Suitable for UAV video links, wireless image transmission, tactical communication systems, and test equipment.

Technical Specifications

Customized Frequency Options

We understand that every RF project requires unique frequency parameters. Our engineering team provides tailored solutions to meet your needs. Examples of customization include:

Q1: Can you make a frequency down converter from 2400 MHz to 410 MHz?
✔ Yes. Specification sample:

• Input Frequency: 2400 MHz
• Output Frequency: 410 MHz
• Local Oscillator: 1990 MHz
• Noise Figure: ≤1.5 dB
• Gain: 25 dB
• RF Interface: SMA-50KFD
• Power: ≤12V / 450mA
• Size: 81 × 48 × 15 mm

Q2: Can you make a frequency down converter from 3500 MHz to 500 MHz (3200–3800 MHz to 200–800 MHz)?
✔ Yes. Example specification:

• Input Frequency: 3200–3800 MHz
• Output Frequency: 200–800 MHz
• Local Oscillator: 3000 MHz
• Gain: 25 dB
• Noise Figure: ≤1.5 dB
• RF Interface: N-50KFD
• Power: ≤12V / 450mA
• Size: 81 × 48 × 15 mm

Q3: Can you make a down converter for 5750–5950 MHz to 200–400 MHz?
✘ Unfortunately, our current design supports oscillator frequencies up to 4200 MHz, so this exact conversion is not feasible.

Applications

This COFDM RF Down Converter BDC is widely used in:

• UAV (Drone) Video Transmission – Real-time HD image downlink with minimal delay.
• Military & Tactical Communications – Secure, encrypted, long-distance communication.
• Public Safety Operations – Police, fire, and emergency response communication systems.
• Wireless Broadcasting – Satellite and terrestrial downlink conversion.
• Test & Measurement Systems – RF labs and experimental setups requiring frequency shifting.
• Surveillance Systems – Low-latency video downlink for mobile platforms.

Advanced Options

• Adjustable Local Oscillator (LO): Most designs use a fixed LO for maximum stability. However, if you require adjustable LO capability via UART or other control interfaces, we can provide a customized solution for testing and experimental use. Example: shifting up from 750–1050 MHz to various bands (3100–3300 MHz, 3500–3800 MHz, 4100–4400 MHz, up to 4900 MHz).

• Power Supply via Coaxial Cable: The converter can be customized for DC supply through the same coaxial cable (e.g., LMR 400), simplifying installation.

• Different RF Interfaces: SMA, N-type, or customer-specified connectors can be applied.

Product Dimensions

• Standard size: 108 × 48 × 22 mm
• Compact customized size: 81 × 48 × 15 mm
• Lightweight, durable aluminum housing for stable operation in mobile environments.

FAQ

Q: Is it possible to convert the DC supply through the same coaxial cable (e.g., LMR 400)?
A: Yes, we support online power supply through coaxial cable, customizable per project.

Q: Can you provide a frequency UP / Down Converter with adjustable LO via UART?
A: Yes, although fixed LO designs are more stable. Adjustable LO can be implemented for testing or custom projects, but engineers should note the increased risk of instability.

Q: What if my required frequency band is not listed?
A: Please contact us with your frequency requirements. Our design team can build converters for a wide range of applications, typically from 200 MHz to 3.8 GHz.

Why Choose Our COFDM RF Down Converter?

• Proven Expertise: Over 10 years of experience in RF transmission solutions.
• Tailored Engineering: Each converter can be modified to your specifications.
• High Reliability: Tested for real-world UAV and military-grade applications.
• Global Applications: Products deployed in security, defense, and commercial projects worldwide.

Order & Customization

This product is available for direct purchase or bulk OEM orders.
When ordering, please specify:

• Input frequency range
• Output frequency range
• Power requirements
• Connector type (N-type, SMA, etc.)
• Any special requirements (adjustable LO, coaxial DC supply, etc.)

Conclusion

The COFDM RF Frequency Down Converter BDC (2100–2500MHz to 350–750MHz) provides a reliable, customizable, and professional-grade solution for modern RF communication systems. Whether for drones, defense, broadcasting, or surveillance, this down converter ensures low noise, high gain, and stable operation under demanding conditions. With full customization support, it is the ideal choice for engineers and integrators requiring precision RF conversion technology.