color:#c0392b;FG-200 DDS Function Signal Generator Frequency Counter 0.01Hz - 500KHz Signal Source Module Sine++Sawtooth WaveformFeatures: Compact size, complete functions, simple operation, easy to carry. It can be powered by a adapter or a 3.7V battery. Together with an oscilloscope, it can be used for electronic circuit test and debugging, frequency characteristics and impulse response test and measurement of audio amplifiers. Due to good accuracy and frequency stability of DDS, it is also very suitable for oscilloscope time factor calibration. output is suitable for oscilloscope attenuator and probe pulse characteristic adjustment. Have a filter (can be opened and closed) to suit output of sine and pulse . This functional signal generator can test many kinds of forms such as: sine , , triangle , forward sawtooth , reverse sawtooth , etc. It is especially designed for those professional worker. Specifications: Type: without Antenna / with Antenna (Optional) Material: ABS main technical parameters: 1. Output waveforms: sine , , triangle , forward sawtooth , reverse sawtooth , ECG , exponential rise, exponential fall, Lorentz pulse, Gauss pulse, Sinc pulse, half-, full-, Schumann , noise , and so on 15 kinds of waveforms. 2. supply: DC4-9V, DC5V is recommended when using adapter, 3.7V battery is recommended when using battery . 3. Current: 180MA at voltage 5V 4. Frequency : sine 0.01Hz- 500.00kHz (with further increase in frequency, output amplitude will decrease), other waveforms 0.01Hz-100.00kHz (but does not limit upper limit of adjustable frequency, if distortion and jitter requirements are not high, use of frequency can be further increased). 5. Resolution: 0.01Hz. 6. Sine distortion: