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The Keysight (formerly Agilent) E4425B RF Signal Generator provides outstanding phase-noise performance and analog modulation features for all general-purpose test needs. It offers excellent performance with superior quality, reliability and worldwide support -- at an affordable price. The E4425B provides comprehensive analog modulation capabilities, including AM, FM, phase modulation and pulse modulation. It is ideally suited to meet the demanding requirements of today's receiver test, component test and local oscillator application. Features High spectral purity Flexible architecture, upgrade paths for options Choice of electronic or mechanical attenuator Superior level accuracy Wideband FM and Phase Modulation, AM and Pulse Modulation Step sweep (frequency, power and list) Built-in function generator