The NI PXI-5660 from National Instruments is a PXI Based Vector Signal Analyzer (VSA) that operates from 9 kHz to 2.7 GHz. The VSA provides common measurements such as power spectrum, peak power and frequency, in-band power, adjacent-channel power, and occupied bandwidth. It can be used in scientific research, communications, consumer electronics, aerospace/defense, and semiconductor test applications as well as for emerging areas such as software-defined radio (SDR), radio-frequency identification (RFID), and wireless sensor networks. It is available in compact, 3U PXI package.