Fangrui Product Details This Receiver Has A Built-in 1 Ppm Temperature Compensation Crystal (tcxo). Make The Frequency More Stable And Accurate. The Almost Zero Temperature Drift (2 Ppm Initial Deviation, 1 Ppm Temperature Drift) Increases The Internal Chip Heat Dissipation, Making The Work More Stable. Using The Latest Rtl2832u + R820t2 Solution (r820t2 Tuner Has Slightly Better Sensitivity Than R820t, Lower Background Noise And Higher Signal-to-noise Ratio. Can Work More Stably At Frequencies Around 1.5 Ghz. ) The Q Channel On The Rtl2832u Is Used To Increase The Direct Mining Reception Of The Frequency Of 100khz-24mhz. Achieved 100khz-1.7ghz Full Segment Reception. Support For Windows Xp/7/8/0, For Mac, For Android And Other Systems. The Signal Received By The Antenna Is Converted Into Data By This Receiver And Sent To The Computer, Android Phone And Other Devices Through The Usb Interface. The Software On The Computer And Android Phone And Other Devices Processes The Demodulated Signal, Displays The Frequency Spectrum, And