100% Chinese original SDR platform Customization
Overview
100% Chinese original SDR customization is aimed at protecting customers' supply chains from the threat of export controls on critical chip origins. What's more, 100% Chinese original SDR customization aims to protect the data security against hacking.
The system innovatively integrates 8 sets of 100% Chinese original SDR units into a 4U standard chassis, achieving multi-device synchronization through an 8-Way peripheral OctoClock source.
This system significantly reduces the complexity of building radio frequency systems while ensuring performance, making it suitable for complex scenarios such as 5G/6G massive MIMO testing, phased array radar verification, and electromagnetic environment monitoring.
Features
- 100% China Original Hardware Architecture: Built on 100% Chinese original universal SDR units, core components (including baseband processor and RF chip) of SDR Matrix are domestically produced;
- Precision synchronization capability: Provides a unified reference clock for 8 SDR units through an 8-way peripheral Octopus Clock source, achieving strict phase and time synchronization between multiple SDR units, meeting the timing consistency requirements of MIMO systems or multi-nodes collaborative acquisition.
- High integration and easy deployment: Leveraging the compact design of the 100% Chinese original universal SDR (195×106×38mm), eight SDR units and an octopus clock source are integrated into a single 4U chassis for high level integration. At the same time, it retains multiple interfaces such as SFP and RJ45, supporting quick connection with external systems and adaptable to both laboratory and field deployment needs.
Composition
The SDR Matrix consists of 8 domestically produced universal SDRs, 1 octopus clock source, and a custom 4U chassis.

Controller
| SDR-Unit | SDR-Matrix (Unit x 8) | ||||||||
| OS | Linux | Linux | |||||||
| CPU | ARM 2-core | ||||||||
| Memory | |||||||||
| NVMe SSD | |||||||||
| RJ45 | 1Gbps x 1 | 1Gbps x 8 | |||||||
| SFP | |||||||||
| SFP+ | 10Gbs x 1 | 10Gbs x 8 | |||||||
| QSFP28 | |||||||||
| Cabled PCIe | |||||||||
| MicroUSB | USB2.0 x 2 | USB2.0 x 16 | |||||||
FPGA and Baseband
| SDR-Unit | SDR-Matrix (Unit x 8) | ||||||||
| FPGA | Chinese original SOM | Chinese original SOM | |||||||
| DRAM | |||||||||
| ADC resolution | 12 bits | 12 bits | |||||||
| DAC resolution | 12 bits | 12 bits | |||||||
| Maximum I/Q sample rate | 61.44MS/s | 61.44MS/s | |||||||
RF
Transmitter (China original)
| SDR-Unit | SDR-Matrix (Unit x 8) | ||||||||
| Number of channels | 2 | 16 | |||||||
| Frequency range | 70MHz~6GHz | 70MHz~6GHz | |||||||
| Frequency step | |||||||||
| Maximum output power (Pout) | 10dBm | 80dBm | |||||||
| Gain range | |||||||||
| Gain step | |||||||||
| Maximum instantaneous real-time bandwidth | 56MHz | 56MHz | |||||||
Receiver (China original)
| SDR-Unit | SDR-Matrix (Unit x 8) | ||||||||
| Number of channels | 2 | 16 | |||||||
| Frequency range | 70MHz~6GHz | 70MHz~6GHz | |||||||
| Frequency step | |||||||||
| Maximum input power (Pin) | |||||||||
| Gain range | |||||||||
| Gain step | |||||||||
| Maximum instantaneous real-time bandwidth | 56MHz | ||||||||
| Noise figure | <10dB | ||||||||
| Input IP3 (Third-order Intercept Point) | -20dBm | -20dBm | |||||||
GPS Disciplined Oscillator (GPSDO)
| SDR-Unit | SDR-Matrix (Unit x 8) | ||||||||
| Local Oscillator Accuracy | ±2.0ppm | ||||||||
| Embedded OCXO (not locked to GPS) | Optional | Optional | |||||||
| Embedded OCXO (locked to GPS) | Optional | Optional | |||||||
| Peripheral Clock | Supported | 8-Way OctoClock 10MHz | |||||||
| Peripheral PPS | Supported | 8-Way OctoClock 10MHz | |||||||
Note Frequency accuracy is based on temperature compensated crystal oscillator (TCXO) vendor specifications and is not measured. Alternatively, you can incorporate an external reference source to provide a more precise frequency Reference Clock and to achieve better frequency accuracy.
Active Antenna
| SDR-Unit | SDR-Matrix (Unit x 8) | ||||||||
| Embedded | None | None | |||||||
| Peripheral | Supported | Supported | |||||||
Note NORTHBRIDGES recommends periodically locking the GPS for at least 1 hour to recalibrate the GPSDO module accuracy.
Power Requirements
Notice The protection provided by this product may be impaired if it is used in a manner not described in this document.
| SDR-Unit | SDR-Matrix (Unit x 8) | ||||||||
| Input Voltage | 10-14 V | ||||||||
| Maximum Current | 3A | ||||||||
Notice The power supply must also meet any safety and compliance requirements for the country of use.
Physical Characteristics
If you need to clean the module, wipe it with a dry towel.
| SDR-Unit | SDR-Matrix (Unit x 8) | ||||||||
| Dimensions, enclosure | 195 x 106 x 38 mm | 4U | |||||||
| Weight | |||||||||
Environmental Characteristics
| SDR-Unit | SDR-Matrix (Unit x 8) | ||||||||
| Operating temperature | 0 °C to 45 °C | ||||||||
| Operating humidity | 10% to 90% relative humidity, noncondensing | ||||||||
| Pollution Degree | 2 | ||||||||
| Maximum altitude | 2,000 m | ||||||||
Peripheral Clock Resource
The peripheral Octopus-Clock is an affordable high-precision frequency and time benchmark distribution solution.
The peripheral Octopus Clock provides external 10MHz and PPS signal input to SDR matrix, and can optionally be equipped with a embedded GPSDO (OCXO) module to generate internal Time-Frequency signals, achieving high-precision synchronization by connecting active GPS antenna.
This peripheral clock provides parallel output capability of both 8-way of 10MHz clock signals and 8-way of PPS synchronous signals, offering a complete time-frequency reference solution for building multi-channel synchronized systems. It is perfectly suitable for test, measurement, and communication applications that require precise clock synchronization.
Features:
- 8-way output: Simultaneously outputs 8-ways of 10 MHz and 8-ways of PPS, with all output clocks having the same frequency and phase, suitable for MIMO and array systems.
- Suitable for MIMO synchronization: Provides clock synchronization for building coherent systems with universal SDRs.
- Flexible signal source shifting: Users can select between the internal GPSDO and external 10 MHz/PPS. Supports automatic failover.
- Rack-mounted design: standard 1U height, compatible with cabinets.
Peripheral 8-Way OctoClock
| SDR-Unit | SDR-Matrix (Unit x 8) | ||||||||
| Input Voltage | 6-15 V | ||||||||
| Maximum Current | <1A | ||||||||
| 10MHz Input range | 0-20 dBm | ||||||||
| 1PPS Input Level | 2.5-5 V | ||||||||
| Power Supply to Active Antenna | 5 V | ||||||||
| Frequency accuracy ( (not locked to GPS)) | 25ppb | ||||||||
| Frequency accuracy ( (locked to GPS)) | <1ppb | ||||||||
| PPS accuracy ( (locked to GPS)) | 50ns | ||||||||
| 10MHz Output Amplitude | ~1.4VPP | ||||||||
| 10MHz Output Waveform | Square wave | ||||||||
| 10MHz Output Impedance | 50Ω | ||||||||
| 1PPS Output Level | 5V | ||||||||
| 1PPS Output Waveform | logic level to pulse | ||||||||
| Dimensions, enclosure (1U) | 101.6 x 436.5 x 44.5 mm | ||||||||
| Weight | 1.2Kg | ||||||||
Chassis
The chassis customized for multi SDR integration features multiple outstanding characteristics. The chassis has a standard 4U height and can accommodate the integration of 8 universal SRDs within a single chassis architecture. It supports quick Plug and unplug operation via the front panel and is perfectly compatible with standard 19-inch racks. Dedicated mounting interfaces and accessories are provided with the chassis to ensure convenience and stability during installation.
Contact: Windy Lian
Phone: 13862120662
E-mail: sales@north-bridges.com
Whatsapp:
Add: Suzhou City, China
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