Keysight E5071C

This used Keysight E5071C ENA series network analyzer is a versatile RF instrument built for S-parameter measurement, component characterization, and general vector network analysis work. It is widely used in R&D labs, manufacturing test floors, and calibration facilities for tasks such as filter tuning, antenna testing, and cable assembly verification. The unit has been in active service and shows normal wear, with full functionality confirmed prior to listing. The E5071C offers multiple test ports, fast sweep speeds, and a clear display that make it efficient for both simple return loss checks and more complex multiport device characterization. Its broad frequency coverage and range of available options allow it to serve a wide variety of applications, from cable and antenna testing to more advanced device measurements used in production environments. Many engineers favor this model for its balance of performance and ease of use compared to older analyzer generations. This analyzer is a strong fit for any lab needing dependable vector network analysis capability without the cost of a brand new high end system. It is offered in tested, working condition and ready to be recalibrated and placed into service on receipt.