Compact, portable signal source with full features for electronics testing and debugging. Simple operation and intuitive controls for fast setup and reliable measurements. DDSbased frequency generation delivers accuracy and stable output for repeatable results. Designed to be used with an oscilloscope for electronic circuit testing, debugging, and measurement of frequency characteristics and impulse response of audio amplifiers. Good frequency stability and DDS performance make it suitable for oscilloscope sweep time factor calibration. Use scenario 1: In the lab or on site, generate known waveforms to test audio amplifiers, measuring frequency response and impulse response with an oscilloscope. Use scenario 2: Calibrate oscilloscope sweep time factors and timebase accuracy using the stable DDS output. Use scenario 3: Portable electronics debugging and circuit testing, where a compact, fullfeatured signal source enhances verification and troubleshooting.