Designed to be used with an oscilloscope for electronic circuit testing and debugging, including testing and measurement of the frequency characteristics and impulse response of audio amplifiers. Compact size, fullfeatured capability, simple operation, and easy portability for bench or field use. The DDSbased output provides accuracy and stable frequency, making it well suited for calibrating oscilloscope sweep time factors. Practical use scenarios Electronic circuit testing and debugging in development or settings. Audio amplifier development and verification, enabling measurement of frequency response and impulse response. Oscilloscope sweep time factor calibration to ensure accurate timebase measurements. Key attributes and benefits Functionality: supports testing, measurement, and calibration tasks in a single compact unit. Compatibility: designed to be used together with an oscilloscope for comprehensive testing workflows. Size and portability: compact, easy to carry between workstations or locations. Performance: DDS delivers stable, precise frequency output for reliable measurements and calibration.