Were the unit generating a pure sine wave as it should ... Granted, $200 is not a lot to spend compared to what a lab-grade signal generator with such a wide frequency range would cost.

The recent Design Idea “Getting an audio signal with a THD < 0.0002% made easy,” discloses a low THD sine generator which led me to dust off a design that I had published in AudioXpress magazine [1] ...

Signal-generator circuits produce RF sine-wave (or other waveform) output for purposes of testing, troubleshooting, and alignment. Although the subject of designing top-notch signal generator circuits ...

Common generator types include: continuous wave function pulse signal sweep A source that can produce a sine wave is referred to as a CW source. The frequency and amplitude of the sine wave can be set ...