{
 "slug": "airspy-r2",
 "name": "Airspy R2",
 "maker": "Airspy",
 "category": "radio",
 "categoryLabel": "Radio & mesh",
 "status": "listed",
 "statusLabel": "Listed by maker",
 "description": "Monitor VHF and UHF signals with a USB SDR receiver.",
 "goodFor": "Monitor VHF and UHF signals with a USB SDR receiver.",
 "youNeed": "Compatible host software and an SMA-connected receive antenna.",
 "tradeoff": "HF reception needs an external converter; this is a receiver.",
 "tags": [
  "radio",
  "sdr"
 ],
 "price": "£179.96",
 "priceShort": "£179.96",
 "priceFrom": "nevadaradio.co.uk",
 "checked": "2026-09-15",
 "url": "https://gadgets.sh/devices/airspy-r2/",
 "shortUrl": "https://gadgets.sh/airspy-r2",
 "markdown": "https://gadgets.sh/devices/airspy-r2.md",
 "image": "https://gadgets.sh/assets/airspy-r2.jpg",
 "cutout": "https://gadgets.sh/assets/cutouts/airspy-r2.webp",
 "shareCard": "https://gadgets.sh/og/airspy-r2.jpg",
 "shops": [
  {
   "merchant": "Airspy",
   "label": "Buy from Airspy",
   "kind": "shop",
   "orderable": true,
   "url": "https://airspy.com/airspy-r2/?utm_source=gadgets.sh&utm_medium=referral&utm_campaign=airspy-r2&utm_content=api",
   "note": null
  },
  {
   "merchant": "ITEAD Studio",
   "label": "Buy from ITEAD Studio",
   "kind": "shop",
   "orderable": true,
   "url": "https://itead.cc/product/airspy/?utm_source=gadgets.sh&utm_medium=referral&utm_campaign=airspy-r2&utm_content=api",
   "note": "in stock (US$169) at ITEAD Studio (official Airspy store) when checked on 2026-09-24."
  },
  {
   "merchant": "Nevada Radio",
   "label": "Buy from Nevada Radio",
   "kind": "shop",
   "orderable": true,
   "url": "https://www.nevadaradio.co.uk/airspy-r2-high-performance-sdr-receiver?utm_source=gadgets.sh&utm_medium=referral&utm_campaign=airspy-r2&utm_content=api",
   "note": "in stock (£199.95) at Nevada Radio (UK) when checked on 2026-09-24."
  },
  {
   "merchant": "Airspy.US",
   "label": "Sold out at Airspy.US",
   "kind": "soldout",
   "orderable": false,
   "url": "https://v3.airspy.us/product/a-airspy/?utm_source=gadgets.sh&utm_medium=referral&utm_campaign=airspy-r2&utm_content=api",
   "note": "out of stock (SKU A-Airspy) at Airspy.US when checked on 2026-09-24."
  }
 ],
 "specs": [
  {
   "group": "Receiver and signal path",
   "rows": [
    {
     "label": "Native coverage",
     "value": "24–1700 MHz receive; HF needs an optional SpyVerter.",
     "source": "https://airspy.com/airspy-r2/"
    },
    {
     "label": "Tuner",
     "value": "R820T2 or R860 low-IF front end.",
     "source": "https://airspy.com/airspy-r2/"
    },
    {
     "label": "ADC",
     "value": "12-bit, 20 MS/s; maker figures: 10.4 ENOB, 70 dB SNR, 95 dB SFDR.",
     "source": "https://airspy.com/airspy-r2/"
    },
    {
     "label": "I/Q output",
     "value": "10 MS/s; 10 MHz view, up to 9 MHz alias/image-free.",
     "source": "https://airspy.com/airspy-r2/"
    },
    {
     "label": "Reduced-rate mode",
     "value": "2.5 MS/s is experimental; use 10 MS/s plus decimation for dependable narrowband workflows.",
     "source": "https://airspy.com/quickstart/"
    },
    {
     "label": "RF input maximum",
     "value": "+10 dBm.",
     "source": "https://airspy.com/airspy-r2/"
    },
    {
     "label": "Noise and linearity",
     "value": "Maker figures: 3.5 dB NF at 42–1002 MHz; 35 dBm IIP3.",
     "source": "https://airspy.com/airspy-r2/"
    },
    {
     "label": "Output format",
     "value": "I/Q or real; 16-bit integer or 32-bit float.",
     "source": "https://airspy.com/airspy-r2/"
    },
    {
     "label": "Processor",
     "value": "Cortex-M4F up to 204 MHz with dual M0 cores.",
     "source": "https://airspy.com/airspy-r2/"
    }
   ]
  },
  {
   "group": "Connections and accessories",
   "rows": [
    {
     "label": "RF connectors",
     "value": "SMA input; U.FL RF loopthrough.",
     "source": "https://airspy.com/airspy-r2/"
    },
    {
     "label": "Bias tee",
     "value": "Switchable 4.5 V; 50 mA budget.",
     "source": "https://airspy.com/quickstart/"
    },
    {
     "label": "Clock",
     "value": "0.5 ppm reference, timestamp RTC; external 10–100 MHz reference through MCX.",
     "source": "https://airspy.com/airspy-r2/"
    },
    {
     "label": "Expansion",
     "value": "16 SGPIO, eight GPIO, two ADC inputs, clock outputs and JTAG; see maker port diagram.",
     "source": "https://airspy.com/airspy-r2/"
    },
    {
     "label": "HF accessory",
     "value": "Connect SpyVerter IF output to R2 RF input; compatible software can power it through the bias tee.",
     "source": "https://airspy.com/quickstart/"
    },
    {
     "label": "Temperature",
     "value": "−10 to 40 °C; maintain ventilation.",
     "source": "https://airspy.com/airspy-r2/"
    }
   ]
  },
  {
   "group": "Host and software",
   "rows": [
    {
     "label": "Suggested computer",
     "value": "Third-generation Core i3 2.4 GHz equivalent, 2 GB RAM, high-speed USB 2.0.",
     "source": "https://airspy.com/airspy-r2/"
    },
    {
     "label": "Host throughput",
     "value": "Quickstart warns of dropped samples on slow hosts and discourages hubs at full rate.",
     "source": "https://airspy.com/quickstart/"
    },
    {
     "label": "Platforms",
     "value": "Maker lists Windows 10/11, Linux, BSD and macOS; application support varies.",
     "source": "https://airspy.com/airspy-r2/"
    },
    {
     "label": "Windows setup",
     "value": "Normally automatic; maker provides a WinUSB compatibility driver if detection fails.",
     "source": "https://airspy.com/download/"
    },
    {
     "label": "Linux/macOS API",
     "value": "Open-source libairspy and host utilities are in airspyone_host.",
     "source": "https://github.com/airspy/airspyone_host"
    },
    {
     "label": "Firmware",
     "value": "The Airspy One repository links build and flashing instructions in its wiki.",
     "source": "https://github.com/airspy/airspyone_firmware"
    },
    {
     "label": "Network receiver",
     "value": "SPY Server has Windows and Linux builds; Linux x86-64 build requires AVX2 and FMA.",
     "source": "https://airspy.com/download/"
    },
    {
     "label": "ARM server choice",
     "value": "Separate ARM64 and ARMHF downloads; select the host architecture.",
     "source": "https://airspy.com/download/"
    },
    {
     "label": "Plugin boundary",
     "value": "The download page cautions that older plugins may fail with SDR# x64.",
     "source": "https://airspy.com/download/"
    }
   ]
  }
 ],
 "docs": [
  {
   "label": "R2 specifications and port diagram",
   "url": "https://airspy.com/airspy-r2/"
  },
  {
   "label": "R2 quickstart, bias tee and throughput",
   "url": "https://airspy.com/quickstart/"
  },
  {
   "label": "Software, server and driver downloads",
   "url": "https://airspy.com/download/"
  },
  {
   "label": "Airspy One host tools and library",
   "url": "https://github.com/airspy/airspyone_host"
  },
  {
   "label": "Airspy One firmware source",
   "url": "https://github.com/airspy/airspyone_firmware"
  }
 ],
 "blueprint": {
  "openness": "open-firmware",
  "opennessLabel": "Open firmware",
  "summary": "USB/DSP firmware and host driver/software are open source (GPL-2.0); the RF/PCB hardware design itself is not published anywhere.",
  "files": [],
  "repos": [
   {
    "url": "https://github.com/airspy/airspyone_firmware",
    "role": "firmware",
    "official": true,
    "license": "GPL-2.0",
    "stars": 174,
    "pushed": "2021-10-06"
   },
   {
    "url": "https://github.com/airspy/airspyone_host",
    "role": "sdk",
    "official": true,
    "license": null,
    "stars": 279,
    "pushed": "2026-07-19"
   }
  ],
  "parts": [
   {
    "part": "Rafael Micro R820T2 (or R860)",
    "role": "RF tuner front end"
   },
   {
    "part": "NXP LPC4370 (Cortex-M4F + dual M0, 204 MHz, on-chip 12-bit 20 MSPS ADC)",
    "role": "MCU / DSP / ADC",
    "datasheet": "https://www.nxp.com/part/LPC4370FET100"
   }
  ],
  "notes": "airspy.com product and quickstart pages describe firmware/host tools as open source but make no mention of published schematics/PCB files; airspyone_firmware repo (GPL-2.0, verified via gh api) is USB-side MCU firmware only, no hardware directory. R820T2 has no public datasheet from Rafael Micro (fabless RF vendor, NDA-only).",
  "checked": "2026-09-27"
 },
 "sourceFiles": null,
 "firmware": [
  {
   "name": "Airspy Host Tools",
   "url": "https://github.com/airspy/airspyone_host",
   "tag": "SDR Drivers",
   "description": "High-dynamic-range VHF/UHF software defined radio drivers, calibration tools, and streaming server."
  },
  {
   "name": "Gqrx SDR",
   "url": "https://github.com/gqrx-sdr/gqrx",
   "tag": "SDR Receiver",
   "description": "Open source software defined radio receiver powered by GNU Radio and Qt."
  }
 ],
 "chips": [
  "r820t2",
  "lpc43xx"
 ]
}