Power and connectivity - Power supply interface: DC 5.5 x 2.1 mm. The USB port can be powered from a USB power supply, a USB charging head, or any other USB power source, offering flexible and convenient powering options. Precision and stability - DDS precision: Uses a direct digital synthesis algorithm with frequency steps as small as 0.001 Hz, delivering fine control and stable frequency performance. - Stable reference: Digital quartz oscillator frequency reference provides improved stability and helps reduce interference. Output and modulation - Output capability: Can generate a 7.830 Hz waveform. - Programmable frequency modulation: Supports adjustable frequency modulation with a range from 0.001 Hz to 200 kHz. It can also function as a conventional programmable digital signal generator. Applications and use scenarios - Laboratory signal generation and instrument calibration: Use the fine 0.001 Hz frequency steps and stable reference to calibrate measurement equipment and perform precise frequency sweeps. - Electronic, audio, and RF testing: Generate accurate test signals across a wide frequency range for evaluating filters, amplifiers, oscillators, and communication components. - Educational demonstrations and experiments: Demonstrate DDS-based signal generation, low-frequency modulation, and stable waveform generation in teaching labs. Key benefits - Flexible powering: Power from USB or standard DC supply via the 5.5 x 2.1 mm interface, simplifying setup on diverse workstations. - High precision control: Sub-0.001 Hz frequency steps enable precise experiments and repeatable results. - Stable performance: Digital quartz oscillator reference minimizes drift and external interference. - Versatile signal generation: Generates a fixed 7.830 Hz waveform and offers broad programmable frequency modulation, suitable for a wide range of testing and educational tasks.