The E4433A RF Signal Generator offers a wide range of digital modulation capabilities for research and development, manufacturing or troubleshooting applications. Providing a comprehensive feature set, it generates standard and custom digital modulation formats, filtering and burst shapes, as well as versatile analog modulation, with superior quality, reliability and worldwide support -- at an affordable price. Features 250 kHz to 4 GHz frequency range Part of the ESG-D series RF modulation bandwidth up to 35 MHz 40 MHz sample rate and 14-bit I/Q resolution 1 Msample (4 MB) memory for waveform playback and waveform storage