FG-300 DDS Function Signal Generator 0.001Hz–200kHz Color Screen
FG-300 DDS Function Signal Generator 0.001Hz–200kHz Color Screen
FG-300 DDS Function Signal Generator – 13 Waveforms, 1.8" Color Display
The FG-300 DDS Function Signal Generator is a compact, high-precision benchtop instrument designed for electronics hobbyists, engineers, students, and makers. Featuring a wide frequency range of 0.001Hz to 200kHz and support for 13 different waveform types, it delivers reliable, stable signal output for testing, prototyping, and circuit development tasks.
Made in Mainland China.
Key Features
- High-Precision DDS Synthesis: Uses a low-temperature-drift crystal oscillator for excellent frequency stability. Resolution reaches 0.001Hz for ultra-fine tuning at low frequencies.
- 13 Waveform Types: Sine, Square, Triangle, Forward Sawtooth, Reverse Sawtooth, ECG, Half-wave, Loren, Gaussian, Sinc, Exponential Rise, Exponential Fall, and 7.83Hz Schumann wave — covering a wide range of signal needs.
- 1.8-Inch TFT Color LCD Display: Clear, vibrant color screen with direct digital keypad input for quick, intuitive frequency and parameter adjustment.
- Smart Settings & Auto-Save: All configuration parameters are saved automatically — no need to re-enter settings after power-up. Includes sleep timer and adjustable signal lamp and backlight brightness.
- USB Type-C Powered: Convenient 5V USB-C power supply for use at your workbench or in the field.
- Compact & Portable: Slim profile at just 127 × 98 × 18mm — easy to store and transport.
Technical Specifications
| Frequency Range | Sine: 0.001Hz – 200kHz; Other waveforms: 0.001Hz – 20kHz |
| Frequency Resolution | 0.001Hz |
| Waveform Types | 13 types (Sine, Square, Triangle, Sawtooth, ECG, and more) |
| Output Amplitude | 2.5V (V/PP) |
| Output Impedance | 330 Ohms |
| Display | 1.8-inch TFT Color LCD |
| Power Supply | USB Type-C, 5V |
| Dimensions | 127 × 98 × 18mm |
| Material | Metal housing |
Package Contents (2x Set)
- 2 × FG-300 Signal Generator Host Unit
- 2 × USB Type-C Power Cable
- 2 × 4-Pin Signal Output Cable
- 2 × Stylus
Note: Screen colors may vary slightly from images due to display settings. Measurement tolerances of ±1–3cm may apply.
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Frequently Asked Questions
Q: What waveforms does the FG-300 DDS Signal Generator support?
A: The FG-300 supports 13 waveform types including Sine, Square, Triangle, Forward Sawtooth, Reverse Sawtooth, ECG, Half-wave, Loren, Gaussian, Sinc, Exponential Rise, Exponential Fall, and the 7.83Hz Schumann wave — making it versatile for a wide range of electronics testing and prototyping applications.
Q: What is the frequency range of the FG-300 signal generator?
A: The sine wave output covers 0.001Hz up to 200kHz. For all other waveforms, the primary usable range is 0.001Hz to 20kHz, though the upper limit can be extended if strict waveform accuracy is not required.
Q: How is the FG-300 powered, and does it include a battery?
A: The FG-300 is powered via a USB Type-C cable at 5V — a cable is included in the package. No battery is included or required.
Q: Will my settings be saved when I turn off the FG-300?
A: Yes. All configuration parameters — including frequency, waveform type, and display settings — are automatically saved to memory and restored the next time the unit is powered on, so you won't need to reconfigure it each session.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.