This is a software-defined radio receiver with RTL2832U ADC chip, R820T2 tuner, 1PPM TCXO, SMA F connector, and aluminum housing with passive cooling. Tunable from 500 kHz to 1.7 GHz with bandwidths up to 3.2 MHz (2.4 MHz stable). HF reception is supported in direct sampling mode. Compatible with computer-based SDR software including SDR#, HDSDR, SDR-Radio, GQRX, and SDR Touch on Android. Works with Windows, macOS, Linux, Android, and Raspberry Pi. Suitable for applications such as general radio scanning, air traffic control, public safety, ADS-B aircraft tracking, ACARS, trunked radio, P25/MotoTRBO digital voice, POCSAG, weather balloon tracking, APRS, NOAA APT/Meteor M2 weather satellite reception, radio astronomy, and DAB. Can also serve as a low-cost panadapter with amateur radio transceivers. Includes a versatile dipole antenna kit suitable for beginners. Short antennas are optimized for ADS-B; longer antennas perform well at lower frequencies. In V-dipole configuration, the antenna supports 137 MHz weather satellites and ISS reception. Vertical configuration is suitable for ground-based signals. Includes two mounting brackets and 3 meters of RG174 cable for outdoor installation. This model features improvements over standard versions, including an enhanced R820T2 tuner, 1PPM TCXO, higher-grade components, a redesigned low-noise PCB, improved thermal management, additional ESD protection, and SMA F connectors. Also includes a software-activatable bias tee for powering external LNAs or active antennas. Color: Silver Material: Metal Package Contents: 1 x RTL-SDR radio receiver Note: The actual product color may vary slightly due to lighting conditions and display settings. Dimensional tolerance: ±1–3 cm.