The HP Agilent 8590 E-Series of Portable Spectrum Analyzers has a variety of measurement personalities available: microwave links, noise figure, lightwave, broadcast TV, digital radio, scalar analysis, and many more. This series of Portable Spectrum Analyzers also has an internal option cardcage, a zoom window, softkey menus, and wide frequency ranges. Every model has built-in one-button measurements for adjacent channel power, channel power, signal bandwidth, percent AM, and third-order intercept.