The National Instruments 779782-01, also designated as the PXI-5661, is a high-performance RF Vector Signal Analyzer tailored for advanced RF acquisition and measurement applications. This module operates within a frequency range of 9 kHz to 2.7 GHz and delivers real-time bandwidth of 20 MHz, making it particularly effective for high-throughput environments. Its integrated digitizer supports a sampling rate of 64 MS/s, ensuring precise signal representation essential for tasks such as software-defined radio (SDR) and real-time signal processing. The 779782-01 features 64 MB of onboard memory paired with a quadrature digital downconverter (DDC), which optimizes data load and enhances transfer speeds to the host controller. Users will appreciate the unit's adjustable resolution bandwidth, ranging from less than 1 Hz to 10 MHz, facilitating a wide array of measurement scenarios. With a hardware tuning resolution of 355 nHz when utilizing the internal sample clock, this analyzer stands out for its accuracy and reliability. It also includes the NI 5600 downconverter, capable of minimum tuning resolution down to 1 MHz, which enables detailed data analysis. The 779782-01 operates under power requirements of +3.3 VDC, +5 VDC, +12 VDC, and -12 VDC. It supports a nominal input impedance of 50 Ω and accommodates a maximum DC input voltage of ±25 VDC, with AC input coupling. Designed for diverse operational conditions, the RF Vector Signal Analyzer functions effectively across a temperature range of 0 °C to 50 °C and relative humidity levels of 10% to 90% (non-condensing). The device is rated for a maximum operational altitude of 2,000 meters and meets Pollution Degree 2 standards. The combined dimensions of the unit, which includes both the NI 5600 and NI 5142 modules, are 21.6 cm × 6.0 cm × 13.0 cm (for NI 5600) and 21.6 cm × 2.0 cm × 13.0 cm (for NI 5142), with a total weight of 1,165 grams.