This is a software-defined radio receiver (SDR) featuring an RTL2832 chip, 0.5 PPM TCXO (optional customization available), and MCX connector, with a frequency range of 25 MHz to 1760 MHz. It is designed for use as a radio scanner with compatible free computer software such as SDR#, HDSDR, SDR-Radio, Linrad, GQRX, or SDR Touch on Android. Compatible with Windows, MacOS, Linux, Android, and embedded Linux systems. Ideal for various applications including general wireless scanning, air traffic control monitoring, radio security, ADS-B reception, ACARS, relay radio, P25/MOTOTRBO digital voice, POCSAG, weather balloon tracking, APRS, weather satellite reception, meteor satellite (M2), radio astronomy, meteor scatter monitoring, and DAB listening. This model features an improved tuner design with 0.5 PPM TCXO (optional), enhanced component tolerances, and stable frequency performance with minimal drift and high initial accuracy (±0.5 PPM over temperature). Requires a USB 2.0 port and is generally compatible with most USB 3.0 ports (note that compatibility cannot be guaranteed on all USB 3.0 ports; ensure your system has a USB 2.0 port if needed). Easy installation on Windows; refer to Google's free SDR quick start guide for setup instructions. Fully assembled and ready to use. Compact size. Operates from 25 MHz to 1760 MHz across VHF and UHF bands. Supports AM, NFM, FM, USB, LSB, and CW reception modes. Features a gold-plated MCX antenna connector for improved durability and low insertion loss. Material: ABS Color: Blue Package Contents: 1 x Receiver Kit Note: The color may appear slightly different due to lighting and display settings. Measurement may vary by +/- 1-3 cm.