Great for many applications including general radio scanning, control, public radio,ADS-B , boat , ACARS, trunked radio, P25/MotoTRBO voice, POCSAG, weather balloons, APRS, weather satellites, Meteor M2 satellites, radio astronomy, meteor scatter monitoring, DAB, or for as a low cost panadapter with a radio. Tunes from 500 kHz to 1.7 GHz with to 3.2 MHz (2.4 MHz stable) of instantaneous bandwidth. ( works in direct sampling ). his is an receiver with RTL2832U chip, 1PPM TCXO, F connector, R820T2 and case with passive cooling. Perfect for as a computer based radio scanner with free software like for SDR#, HDSDR, SDR-Radio, Linrad, GQRX or SDR Press on . Works on Windows, OSX, Linux, and embedded Linux computers like the for . It uses the improved R820T2 , comes with a 1PPM TCXO (no and tuning with a 2 initial and 1 temperature ), improved tolerances, redesigned lower noise PCB, cooling improvements, extra ESD and an F connector. It also comes with a software activatable -tee circuit for powering external devices such as LNA's and antennas.