The E5071C network analyzer offers the highest RF performance and fastest speed in its class, with a wide frequency range and versatile functions. The E5071C is the ideal solution for manufacturing and R&D engineers evaluating RF components and circuits for frequency range up to 20 GHz. The E5071C has flexible configurations and you can select the number or ports, frequency and bias teas to fit your application. And the E5071C provides upgradability across all of the options at any time without changing serial number, for both software and hardware options. The E5071C network analyzer provides flexibility as you plan for future investments.