Inspired by the securestate article “All Your 900 MHz Are Belong to Us”, the hack4fun crew wondered about the potential for using the RTL-SDR dongle with Backtrack5 Linux distro. They were able to easily install the drivers and related software to use the RTL-SDR with GNU Radio and GNU Radio-companion and have written this article providing a detailed how-to. Now you can combine these two outstanding capabilities in one integrated pen-testing package.