The idea discone antenna looks exactly like its namesake; a metal disk attached to a metal cone. Of course with the frequencies the RTL software-defined radio deals with, it’s rarely necessary ...

Personal computer (a dual core newer than five years old will do). Dual channel software defined radio. Two antennas. An example of a receiver antenna pair used for FM radio passive radar is shown ...

Turn your Raspberry Pi into a powerful SDR platform with CaribouLite. Explore radio frequencies, decode signals, and optimize ...

Maker and developer Media-Grizzly has their own ideas with this cool, portable Pi-powered software-defined radio (SDR ... would work by connecting an antenna and arming the switch.