This device is a radio turner antenna set. It has improved PCB design, a USB noise choke ring, improved ESD protection and front circuit for lower noise, less spurs and use. It can be tuned from 500 kHz to 1.7 GHz with up to 3.2 MHz of instantaneous bandwidth (2.4 MHz max stable, 3.2 MHz if your application is to USB drops). It is suitable for Windows, , , and etc. Features - 4.5v bias tee circuit can be activated by software. - Improved PCB design for lower noise and less spurs. - A USB noise choke ring, more bypass capacitors and built in to reduce PC noise. - Improved ESD protection (additional ESD diodes and extra ESD discharge paths). - An improved front circuit designed for use (other models still use a circuit designed for -T only). - Tunes from 500 kHz to 1.7 GHz with up to 3.2 MHz of instantaneous bandwidth (2.4 MHz max stable, 3.2 MHz if your application is to USB drops). - Suitable for for , , , and etc. Specification - Color: Blue - Size: 10.5x2.5x1cm - Material: Plastic and aluminum - Connector: SMA : RTL2832U ADC - Tuner: R820T2 - TXCO: 1PPM - USB port: 2.0 Package list: 1 x Antenna Set