Siglent's SSA3031X Spectrum Analyzer covers signals in the 9 KHz - 3.2 GHz variety and measures the magnitude of input signals versus frequency over the instrument's complete frequency variety. This helps when characterizing wireless transmitters or other electronic devices, figuring out dominant frequency, power, distortion, harmonics, bandwidth, and other spectral parts of a signal that are not quickly seen in time domain display screens. An optional Tracking Generator with a front panel output enables swept measurements for frequency response analysis.