This device is a radio tuner antenna set featuring an improved PCB design, USB noise choke ring, enhanced ESD protection, and optimized front-end circuitry for reduced noise and spurious signals. It tunes from 500 kHz to 1.7 GHz with up to 3.2 MHz of instantaneous bandwidth (2.4 MHz maximum stable, 3.2 MHz under specific USB conditions). Compatible with Windows and other operating systems. Features - 4.5V bias tee circuit可 activated via software - Improved PCB design for lower noise and fewer spurs - USB noise choke ring with additional bypass capacitors to reduce PC noise - Enhanced ESD protection with extra diodes and discharge paths - Optimized front-end circuit for broader application use - Frequency range: 500 kHz to 1.7 GHz - Instantaneous bandwidth up to 3.2 MHz (2.4 MHz max stable) - Supports multiple software-defined radio applications Specification - Color: Blue - Size: 10.5 x 2.5 x 1 cm - Material: Plastic and aluminum - Connector: SMA - Chipset: RTL2832U ADC - Tuner: R820T2 - TCXO: 1PPM - USB Port: 2.0 Package List 1 x Antenna Set