1. With RTL2832U ADC chip, R820T2 tuner, 1PPM TCXO, SMA F connector and aluminum housing with passive cooling 2. Suitable for use as a computer-based radio scanner, with free software such as SDR, HDSDR, SDR-radio, GQRX or SDR Touch on Android 3. For Windows / OSX / Linux / Android / Raspberry Pi Computer 4. The antenna is suitable for the 137mhz weather satellite and the International Space Station, and is used in the vertical configuration of ground signals 5. Suitable for many applications, these include general radio scanning, air traffic control, public safety, ADS-B Aircraft Radar, ACARS, trunking radios, p25mototrbo digital voice, POCSAG, weather balloons, APRS, NOAA Aptmeteor M2 Weather Satellite, radio astronomy, DAB or low-cost panadapter with ham radio 6. Better LDO, low noise and low voltage 7. Power through a USB cable 8. AD sampling bit: 8-bit 9. PCB front-end design, higher signal-to-noise ratio 10. Current: 185MA 11. Sample rate: 3.2 msps (2.56 msps stability) 12. Frequency range: 500 KHZ-1766 MHz 13. Size: 7 x 1.4 x 2.8CM