The National Instruments PXI-5661 is a high-performance PXI Vector Signal Analyzer designed for demanding RF analysis applications. Operating within the frequency range of 9 kHz to 2.7 GHz, it delivers superior performance with a standard noise density of less than -140 dBm/Hz, which can be further extended to -165 dBm/Hz when paired with the PXI-5690 preamplifier. This unit features a 20 MHz instantaneous bandwidth through its onboard quadrature digital downconverter, optimizing both size and speed for waveform data transfer to the host controller. The PXI-5661 integrates the functionalities of the PXI-5600 RF Downconverter and the PXI-5142 IF Digitizer into an efficient 3U PXI form factor, making it an ideal solution for high-throughput RF acquisition and spectral monitoring tasks.

In addition, the PXI-5661 includes specialized features for advanced communication applications, such as a burst power trigger and exceptional intermodulation distortion performance with up to 80 dB of intermodulation distortion-free dynamic range. It supports extensive software tools, including Express VIs for LabVIEW, the NI Spectral Measurements Toolkit, and the NI Modulation Toolkit, allowing users to perform critical measurements such as power, frequency, in-band power, and occupied bandwidth. The PXI-5661 is also compatible with Conduant StreamStor devices for large-scale data recording, enhancing its utility in real-time signal processing and software-defined radio (SDR) applications. With robust engineering design, this vector signal analyzer ensures a reliable and effective solution for modern RF signal analysis. For pricing and further information, please contact a National Instruments sales representative.