Nooelec NESDR Mini 2 USB RTL-SDR and ADS-B Receiver Set, RTL2832U and R820T2 Tuner, MCX Input. Low-Cost Software Defined Radio Compatible with Many SDR Software Packages, ESD-Safe

I purchased this USB-connected software-defined radio (SDR) to set up a Raspberry Pi based FlightRadar24 receiver/reporter.The setup was quick and straightforward. Initially, my FR24 rig with the SDR’s included antenna placed near a second-story window captured ADS-B position data from around 12 airplanes. Cool, but I wanted more! After experimenting with the antenna’s length and setting the antenna on a makeshift ground plane (an aluminum cookie sheet), the transformation was remarkable.Opting for a half-wavelength setup (13.75 cm for 1090 MHz ADS-B signals), strategically placing the antenna near the exterior window, and using my cookie sheet ground plane, the system went from tracking 12 airplanes to an impressive 32, with position data extending up to 95 nautical miles! These adjustments proved crucial, unlocking the full potential of the included antenna.This USB-connected SDR, combined with the provided antenna, does a great job as part of a budget-friendly FlightRadar24 ADS-B rig. Highly recommended for those willing to explore and fine-tune for exceptional performance.