A swept sine wave, a wave that changes in frequency over a period of time is used to measure the frequency characteristics of an electronic device . The frequency change occurs linearly. It is either in Hz per seconds or logarithmically in Octaves per second. Advanced sweep generators support sweep sequences with selectable start frequency, hold frequency, stop frequency and associated times. A trigger signal is synchronously provided by the signal generator to the sweep for controlling an oscilloscope which measures the output response of the device.
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