This receiver adopts RTL2832U+R820T solution, uses the Q channel on RTL2832U, increases the support for 100KHz-24MHz, and realizes the receiving of 100KHz-1.7GHz. It enables connections for computers, Android phones and other devices and use SDR software to receive 100KHz-1.7GHz electromagnetic waves. Support AM, FM (NFM, WFM), , , LSB, USB demodulation. Users can listen to short-wave single-sideband communications, FM radio, walkie-talkie calls, aviation bands, etc. The analog sub-tone and digital sub-tone can be cracked by software. You can set up automatic search and . The ID of digital walkie-talkie can be cracked through software and voice signal can be demodulated. (SDR) is a new type of radio broadcasting communication technology, which is based on a software-defined wireless communication protocol of hardwired implementation. Frequency bands, air interface protocols and functions can be upgraded through software downloads and updates without completely replacing hardware. Product Advantages: Medium and short wave directly input the signal received by antenna to digital-to-analog conversion chip, which perfectly solves signal loss, noise, waveform disorder, frequency , and other problems caused by the use of an inverter, so that sensitivity is improved, and waveform display is clear and perfect. The rate is high, showing the actual frequency. Including , small UV antenna, data cable, software and technical support. Material:Aluminum alloy colour:Blue Package Contents: 1 x SDR Receiver 1 x Antenna 1 x USB Cable Only the above package content, other are not included. Note: Light and different displays may cause the color of the item in the a little different from the real . The measurement allowed error is +/- 1-3cm.