Khanfar Quad RX v1.0 Coming Soon
Professional multi-channel SDR receiver with four synchronized RTL-SDR circuits offering 9.6 MSPS combined coherent Instantaneous Bandwidth on a single board
Pre-orders opening soon!
Be the first to experience our advanced multi-channel SDR receiver.
Key Features
Four Complete RTL-SDR Receivers
Each with RTL2832U demodulator + R820T2 tuner for simultaneous multi-channel reception across the entire frequency range (24-1766 MHz).
9.6 MSPS Combined Coherent Bandwidth
Real-time processing of 9.6 MSPS combined coherent Instantaneous Bandwidth when used with our custom software for unparalleled signal capture capability.
Synchronized Operation
Advanced clock distribution system with configurable clock source selection. Use with internal individual clocks or share a common reference for phase-coherent applications.
Single USB Connection
Integrated USB 2.0 hub with USB-C connector combining all four receivers into a single device for clean, simple setup.
Professional Power Design
High-quality voltage regulation with ultra-low noise LDOs for each RTL-SDR section, providing superior reception and minimal cross-interference.
RF Isolation
Carefully designed ground plane separation and RF shielding between receiver sections to minimize crosstalk and interference.
Dual Power Options
USB-powered with additional external 5V input for reliable operation with auto-switching capability for long cable installations.
Technical Specifications
| Specification | Details |
|---|---|
| Receivers | 4× RTL2832U + R820T2 |
| Frequency Range | 24-1766 MHz (standard R820T2 range) |
| Sample Rate | Up to 2.4 MSPS per receiver (9.6 MSPS combined coherent Instantaneous Bandwidth) |
| ADC Resolution | 8 bits |
| RF Connectors | 4× SMA female inputs (50Ω) |
| Clock Reference | 28.8MHz crystals with optional external reference input |
| USB Interface | USB Type-C connector (USB 2.0 High-Speed) |
| Power Supply | USB-powered or external 5V DC input |
| Power Consumption | Approximately 10W (2A @ 5V) |
| PCB Dimensions | 100mm × 100mm |
| RF Isolation | Ground plane separation between RF sections |
| Bias-T Support | Optional for each RF input (software controlled) |
| Clock Selection | Configurable via jumpers/switches |
Gallery
Perfect Companion for Khanfar Spectra-All
The Khanfar Quad RX v1.0 is specifically designed to work with our Khanfar Spectra-All software, creating a powerful multi-channel SDR system with combined instantaneous bandwidth of 9.6 MHz (4 × 2.4 MHz).
Advantages Over Discrete RTL-SDR Dongles
Clock Synchronization
Shared reference clock option enables phase-coherent reception across all four channels
RF Isolation
Professionally designed RF circuitry with proper isolation between receivers
Clean Power
Independent ultra-low-noise power regulation for each receiver section
Single Connection
No USB hub clutter - just one clean USB-C connection for all receivers
Premium Components
High-quality TCXO oscillators for frequency stability and accuracy
Customizable Setup
Configurable clock distribution and power options for various applications
Applications
The Khanfar Quad RX v1.0 is designed for a wide range of advanced SDR applications:
Direction Finding
Use with our Direction Finding software for accurate signal location using phase-based or power-based methods.
Satellite Reception
Receive multiple satellite signals simultaneously or implement diversity reception for weak signals.
Spectrum Monitoring
Monitor up to four different frequency bands simultaneously with our Spectra-All software.
Educational Use
Perfect teaching tool for RF principles, digital signal processing, and phased array concepts.
Research
Ideal for academic and amateur research projects requiring multiple synchronized receivers.
MIMO Applications
Explore multiple-input applications with synchronized receivers for advanced communications experiments.
Software Compatibility
The Khanfar Quad RX v1.0 works with all standard RTL-SDR software and is especially optimized for our multi-channel applications:
Specialized Software Development
We're excited to announce that we are developing several specialized software applications exclusively for the Khanfar Quad RX v1.0 SDR receiver. These custom tools will leverage the unique capabilities of the synchronized four-channel design:
Quad Channel Synchronizer
Advanced phase and time synchronization tool for perfect coherence between all four channels
High-Precision Direction Finder
Enhanced version of our Direction Finder with superior accuracy using all four receivers
Extended Bandwidth Monitor
Monitor up to 9.6 MHz of continuous spectrum utilizing the full capabilities of all channels
Quad Channel Analyzer
Advanced signal analysis with simultaneous processing of all four input streams
These software applications are currently in development and will be released alongside the Khanfar Quad RX v1.0 hardware. Stay tuned for updates!
Register Your Interest
Join our waitlist to be notified when the Khanfar Quad RX v1.0 becomes available for purchase.
Support Our Development
Our SDR hardware and software are developed with passion and dedication to the RF community. Your donations help us continue creating new features and tools. If you find our products useful, please consider supporting our work.
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