Radio Frequency tracking with software-defined radio (SDR) spans from locating distant disruptive signals to nearby tracking devices. However, existing solutions like RTL-SDR and KrakenSDR require external computers, antennas, or DIY setups, limiting accessibility to experienced RF developers. 

The Affordable RF Tracker (ART) is a handheld, all-in-one device for tracking and displaying signal sources, offering high-quality signal tracking with a user-friendly interface and providing 3D mapping and broadband frequency data without the need for peripherals. ART also packages signal data for seamless integration with external applications via an API.