GNU/Linux Fedora Realtek RTL-SDR Driver Setup Guide
Hi! The Tutorial Shows You Step-by-Step How to Install Realtek RTL-SDR Wireless Driver in Fedora GNU/Linux Desktops.
And RTL-SDR (RTL2832U) is a very cheap USB Dongle that can be used as a Computer based Radio Scanner for receiving Live Radio Signals in your Area (no internet required).
Finally, depending on the particular Model it could receive frequencies from 500 kHz up to 1.75 GHz.