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ADS-B Spy 2.2-RC26, released by Airspy, is a Windows-based decoder that converts the manufacturer’s R0, R2 and Mini software-defined radios into high-performance ADS-B (Automatic Dependent Surveillance–Broadcast) receivers capable of 12 MHz, 20 MHz and 24 MHz MLAT (Multilateration). The application implements proprietary algorithms designed to rival top-tier dedicated ADS-B hardware, enabling hobbyists and professionals to build autonomous, low-power ground stations that continuously ingest 1090 MHz transponder messages from aircraft and forward them to tracking networks. Typical use cases include feeding flight-tracking websites, generating local traffic displays for flight-simulation setups, supporting airport ground surveillance projects, and collecting raw data for aviation research or statistics. Because the software directly interfaces with Airspy devices, no additional radio front end is required; the executable handles demodulation, decoding, error correction and packet formatting in real time while exposing raw or Beast/BaseStation-style output streams for downstream consumers such as Virtual Radar Server, PlanePlotter or custom databases. The single-version lineage (currently 1) keeps the installation footprint minimal, and the lightweight binary is optimized for headless Windows installations where CPU and power budgets are constrained. ADS-B Spy is available free of charge from get.nero.com, with downloads delivered through trusted Windows package managers like winget that always supply the latest build and can be scripted for batch installation alongside other applications.
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