Designed and Engineered in France and Made in the USA, this advanced SDR platform combines European RF design expertise with premium professional manufacturing quality.
The Most Affordable, Compact & Extensible Wideband Receiver
The HydraSDR RFOne sets a new standard for accessible, high-performance RF reception.
This powerful SDR can sample 10 MHz of spectrum anywhere between 24 MHz to 1800 MHz, with extension capabilities for even broader coverage. Perfect for professionals, researchers, radio enthusiasts and HAM operators the RFOne delivers laboratory-grade performance in a compact, user-friendly package.
Technical Excellence
- The HydraSDR RFOne stands out with specifications that rival much more expensive equipment:
- Frequency Coverage: 24 MHz to 1800 MHz continuous native reception range
- Sensitivity: 3.5 dB noise figure between 42 and 1002 MHz, 4.5 dB NF on two other inputs
- Dynamic Range: 12-bit ADC @ 20 MSPS providing 80 dB dynamic range (64 dB SNR, 10.4 ENOB)
- Linearity: 35 dBm IIP3 RF front end with tracking RF filters
- Clean Signal Processing: No IQ imbalance, DC offset, or 1/F noise at spectrum center
- High-Performance Embedded Computing: Triple Core MCU @ up to 204 MHz with fully open-source firmware
- Precision Timing: 0.5 ppm frequency stability with low phase noise clock
- Versatile Output: 10 MSPS IQ output standard (up to 80 MSPS with custom firmware)
- Low Power: Less than 2W power consumption (10MHz streaming with BiasTee off)
Unmatched Connectivity & Expansion
The HydraSDR RFOne features comprehensive connectivity options for integration into any RF system:
Multiple RF Inputs:
- Primary input via SMA Female connector with 30 kV ESD protection
- Two additional inputs via U-FL connectors with ESD protection
Precision Timing Options:
- External 10 MHz reference input (SMA Female)
- Two 10 MHz clock outputs (U-FL)
- Four programmable synchronized clock outputs up to 160 MHz
Expansion Capabilities:
- Ultra-extensible design: Single case can house up to three boards for multi-channel configurations, expanded capabilities, or specialized functions
- Create phase-coherent arrays, multi-band monitoring setups, or custom processing chains within a single compact enclosure
- Compatible with future expansion boards to extend frequency range coverage
- Build modular RF systems with perfect board-to-board communication and synchronization
- Ideal for advanced applications like spectrum monitoring, complex signal analysis, multi-band reception, and specialized RF research
Advanced Connectivity:
- 16× SGPIO + 2× programmable high-speed GPIOs (up to 100 MHz)
- Two high-speed ADC inputs (up to 80 MSPS, U-FL, DC coupled)
- 4.5V protected software-switched Bias-Tee for powering LNAs and converters
Developer-Friendly: JTAG header(to be populated), reset pin, core CPU clock output, power pins
Modern Connectivity: USB Type-C connector offering higher power, better robustness, superior shielding, and up to 15 dB lower EMI/RFI radiation compared to Micro USB
Universal Software Support
The HydraSDR RFOne works seamlessly across multiple platforms and software ecosystems:
Cross-Platform Compatibility:
- Windows 10/11 (100% plug-and-play, no drivers required)
- GNU/Linux
- macOS
Works with Popular SDR Software:
Flexible Output Options:
- Standard 10 / 5 / 2.5 MSPS IQ output
- 5 MSPS IQ & 2.5 MSPS IQ output perfect for low-power devices (Raspberry Pi, Odroid, etc.)
- IQ or Real, 16-bit fixed or 32-bit float output streams
- Experimental packet time-stamping with metadata capability (contact-us)
Fully Open Source on GitHub:
- All host tools and libraries available under open source licenses
- Complete firmware source code available for customization
- Community development and contributions welcomed
Versatile Applications
The HydraSDR RFOne is the perfect tool for a wide range of RF applications
Signal Analysis & Monitoring:
- Spectrum analysis, signal identification, band scanning
Communications Research:
- Protocol analysis, signal characterization
Amateur Radio:
- Advanced digital modes, weak signal reception, satellite communications
Educational Use:
- RF and communications engineering teaching and labs
Multi-Channel Systems:
- Build phase-coherent radar, direction-finding arrays, and multi-channel scanners
IoT Development:
- Custom wireless protocol testing and development
What’s in the Box
- Each HydraSDR RFOne package includes:
- 1× HydraSDR RFOne with custom-made aluminum case (designed to house multiple extensions)
- 1× Custom USB-C to USB-A cable with double ferrite chokes for superior RF isolation and noise reduction
Get Yours Today
For more information, detailed specifications, and software downloads, visit our product page https://hydrasdr.com/hydrasdr-rfone or follow us on Twitter/X @HydraSDR or Bluesky for the latest updates.
Open source software / firmware on https://github.com/hydrasdr
Join the growing community of HydraSDR users and discover what makes the RFOne the most affordable, compact, and extensible wideband receiver on the market.