The LimeSDR is based on Lime Microsystem’s latest generation of field programmable RF transceiver technology, combined with FPGA and microcontroller chipsets. These connect to a computer via USB 3 with a Type-A connector. LimeSDR then delivers the wireless data and the CPU provides the computing power required to process the incoming signals, and to generate the data to be transmitted by the LimeSDR to all other devices.
A Software Defined Radio for Everyone
LimeSDR is a low cost, open source, apps-enabled (more on that later) software defined radio (SDR) platform that can be used to support just about any type of wireless communication standard. LimeSDR can send and receive UMTS, LTE, GSM, LoRa, Bluetooth, Zigbee, RFID, and Digital Broadcasting, to name but a few.
While most SDRs have remained in the domain of RF and protocol experts, LimeSDR is usable by anyone familiar with the idea of an app store - it’s the first SDR to integrate with Snappy Ubuntu Core. This means you can easily download new LimeSDR apps from developers around the world. If you’re a developer yourself, you can share and/or sell your LimeSDR apps through Snappy Ubuntu Core as well.
The LimeSDR platform gives students, inventors, and developers an intelligent and flexible device for manipulating wireless signals, so they can learn, experiment, and develop with freedom from limited functionality and expensive proprietary devices.
Here are just some of the applications that are possible with the LimeSDR:
- Radio astronomy
- RADAR
- 2G to 4G cellular basestation
- Media streaming
- IoT gateway
- HAM radio
- Wireless keyboard and mice emulation and detection
- Tire pressure monitoring systems
- Aviation transponders
- Utility meters
- Drone command and control
- Test and measurement
- Many more…
With state-of-the-art technical specs, fully open hardware and toolchain, and integration with Snappy Ubuntu Core’s app distribution platform, LimeSDR is limited only by our collective imagination.
Features & Specifications
- RF Transceiver: Lime Microsystems LMS7002M MIMO FPRF (Datasheet)
- FPGA: Altera Cyclone IV EP4CE40F23 - also compatible with EP4CE30F23
- Memory: 256 MBytes DDR2 SDRAM
- USB 3.0 controller: Cypress USB 3.0 CYUSB3014-BZXC
- Oscillator: Rakon RPT7050A @30.72MHz (Datasheet)
- Continuous frequency range: 100 kHz – 3.8 GHz
- Bandwidth: 61.44 MHz
- RF connection: 10 U.FL connectors (6 RX, 4 TX)
- Power Output (CW): up to 10 dBm
- Multiplexing: 2x2 MIMO
- Power: micro USB connector or optional external power supply
- Status indicators: programmable LEDs
- Dimensions: 100 mm x 60 mm
Block Diagram
Comparisons
| HackRF One | Ettus B200 | Ettus B210 | BladeRF x40 | RTL-SDR | LimeSDR | |
|---|---|---|---|---|---|---|
| Frequency Range | 1MHz-6GHz | 70MHz-6GHz | 70MHz-6GHz | 300MHz-3.8GHz | 22MHz-2.2GHz | 100kHz-3.8GHz |
| RF Bandwidth | 20MHz | 61.44MHz | 61.44MHz | 40MHz | 3.2MHz | 61.44MHz |
| Sample Depth | 8 bits | 12 bits | 12 bits | 12 bits | 8 bits | 12 bits |
| Sample Rate | 20MSPS | 61.44MSPS | 61.44MSPS | 40MSPS | 3.2MSPS | 61.44MSPS (Limited by USB 3.0 data rate) |
| Transmitter Channels | 1 | 1 | 2 | 1 | 0 | 2 |
| Receivers | 1 | 1 | 2 | 1 | 1 | 2 |
| Duplex | Half | Full | Full | Full | N/A | Full |
| Interface | USB 2.0 | USB 3.0 | USB 3.0 | USB 3.0 | USB 2.0 | USB 3.0 |
| Programmable Logic Gates | 64 macrocell CPLD | 75k | 100k | 40k (115k avail) | N/A | 40k |
| Chipset | MAX5864, MAX2837, RFFC5072 | AD9364 | AD9361 | LMS6002M | RTL2832U | LMS7002M |
| Open Source | Full | Schematic, Firmware | Schematic, Firmware | Schematic, Firmware | No | Full |
LimeSDR
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