The Keysight E4402B Spectrum Analyzer operates between the 9kHz to 3GHz frequency range, offers ±1 dB amplitude accuracy, 40 updates /sec measurement speed (including over the GPIB), 99dB third-order dynamic range, ruggedized field case for portability, six-slot option card cage for easy upgradeability, split-screen, segmented sweep, variable-sweep (trace) points from 101 to 8192 points and one-button measurements such as ACP, Occupied BW, Emissions BW, channel power, 10 peaks table, and harmonic distortion provide faster and more repeatable results.