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SDR: Difference between revisions
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! Device !! Tuner !! Bandwidth || Sample Rates || ADC || Freqs || Xmit? || FPGA? | ! Device !! Tuner !! Bandwidth || Sample Rates || ADC || Freqs || Xmit? || FPGA? | ||
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| RTL-SDRv3 || R820TR2 || 2.4MHz sustained<br/>3.2MHz peak || || 8 || 25--1750MHz || No || No | |||
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| NooElec NESDR SMArt || R820TR2 || 2.4MHz sustained<br/>3.2MHz peak||225--300kHz<br/>.9--2.56MHz || 8 || 25--1750MHz || No || No | | NooElec NESDR SMArt || R820TR2 || 2.4MHz sustained<br/>3.2MHz peak||225--300kHz<br/>.9--2.56MHz || 8 || 25--1750MHz || No || No | ||
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| AirSpy || || 10MHz || || 12 || 24--1800MHz || No || No | | AirSpy || || 10MHz || || 12 || 24--1800MHz || No || No | ||
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| [[BladeRF|BladeRF 2.0 micro]] || AD9361 || 56MHz || 61.44MHz || 12 || 47-6000MHz || 2x || Cyclone V | | [[BladeRF|BladeRF 2.0 micro]] || AD9361 || 56MHz || 61.44MHz || 12 || 47-6000MHz || 2x || Cyclone V | ||
Revision as of 06:03, 6 July 2019
Software-defined radio moves the majority of radio processing into software, facilitating relatively inexpensive wide-band hardware interfaces to the electromagnetic spectrum, especially those frequencies below 3GHz. Pairing advanced SDRs with software-defined antennas yields dynamically optimal cognitive radio. Perhaps most famously, DVB-T television tuners built around the RTL2832U chip, and available in USB form factor for less than $30 (particularly the Rafael Micro R820T2), can reliably provide 2MHz of RX bandwidth anywhere from ~30MHz to ~2GHz (still lower frequencies are supported via direct sampling). For $500, powerful units capable of tremendous bandwidth and range (as well as transmission capabilities) are available, and from there it's not that great a leap to building your own stingray.
Hardware
| Device | Tuner | Bandwidth | Sample Rates | ADC | Freqs | Xmit? | FPGA? |
|---|---|---|---|---|---|---|---|
| RTL-SDRv3 | R820TR2 | 2.4MHz sustained 3.2MHz peak |
8 | 25--1750MHz | No | No | |
| NooElec NESDR SMArt | R820TR2 | 2.4MHz sustained 3.2MHz peak |
225--300kHz .9--2.56MHz |
8 | 25--1750MHz | No | No |
| NooElec NESDR SMArt XTR | E4000 | 2.4MHz | 8 | 65--1100MHz 1200--2300MHz |
No | No | |
| HackRF One | 20MHz | 2--20MHz | 8 | Yes | No | ||
| AirSpy | 10MHz | 12 | 24--1800MHz | No | No | ||
| BladeRF 2.0 micro | AD9361 | 56MHz | 61.44MHz | 12 | 47-6000MHz | 2x | Cyclone V |
| BladeRF x40/x115 | LMS6002D | 28MHz | 40MHz | 12 | 300--3800MHz | Yes | Cyclone IV |
| Ettus B210 USRP | AD9361 | 56MHz | 61.44MHz | 12 | 70--6000MHz | 2x | Spartan 6 |
