Tektronix USB real time signal analyzer
The RSA306 is small yet it packs a big punch. It's loaded with features you'd expect from spectrum analyzers twice the size and twice the price, including architecture and patented DPX® technology.
SignalVu® Essentials software, the RSA306 is as powerful as it is intuitive. Included for free, SignalVu® Essentials gives you unlimited access to advanced measurement and analysis capabilities.