Keysight N9068A

This used Keysight N9068A is a phase noise measurement application designed to run on compatible Keysight signal and spectrum analyzers, extending their capability into precise phase noise characterization. It is commonly used by engineers evaluating oscillator stability, synthesizer performance, and low noise signal sources in communications and radar systems. The license or module is being offered in verified working condition as pulled from an active test environment. The N9068A option allows an analyzer to perform fast, accurate phase noise plots across a wide offset frequency range, which is essential for qualifying local oscillators and frequency references used in demanding RF systems. Engineers value this capability because manual phase noise measurement setups can be time consuming and less repeatable, while this integrated application streamlines the process directly on the host analyzer. It fits naturally into R&D and production test workflows where oscillator quality is a critical specification. Adding this application to an existing compatible analyzer is a cost effective way to gain phase noise measurement capability without purchasing a dedicated standalone instrument. It is sold as tested and functional, ready to be licensed or installed onto a supported Keysight signal analyzer platform.