The Keysight E5071C ENA Vector Network Analyzer is a versatile RF network analysis instrument with a wide frequency range of 9 kHz to 9 kHz to 4.5 / 6.5 / 8.5 GHz, depending on the model option. The Keysight E5071C ENA Analyzers, formerly known as Agilent E5071C ENA Analyzers, are designed to perform signal analysis on wireless communication, automotive, semiconductor, and medical industry equipment, used for both manufacturing and R&D applications. The Keysight E5071C improves accuracy, yield, and margins with its wide dynamic range of 123 dB and excellent temperature stability of 0.005 dB/°C. The Keysight E5071C ENA Vector Network Analyzer features a fast measurement speed, providing 9 msec for 401 points with error correction. The device is upgradable and there are different model options available for time domain analysis, offering 2- or 4-port test set configurations with varying frequency ranges and system customizations.