1Hz-500kHz DDS Functional Signal Generator, Portable Frequency Generator, Audio Signal Generator, Sine/Triangle/Square/Sawtooth Waveforms, FG-100

PARAMETERS:- Size: 125 × 80 × 32 mm/4.92×3.15×1.26in- Weight: ≈ 0.15 kg/0.33lbs (with accessories)- Sine: 1 Hz – 500 kHz (flat amplitude ≤ 200 kHz) - Other waves: 1 Hz – 20 kHz - Resolution: 1 Hz- Waveforms:- Sine, square, triangle, forward sawtooth, reverse sawtooth, noise, ECG- Signal Quality: Sine THD: <1 % (<1 kHz), <0.5 % (≥ 1 kHz)Output - Amplitude: max ±10 V p-p into 50 Ω - DC offset: ±10 V (can be disabled) - Output impedance: 50 Ω - Filter: switchable- Power Supply: 3.5 – 10 V DC - Memory: Settings saved automatically after adjustmentPACKAGE1* Frequency Generator1* USB CableAPPLCATION:Bench & Field Testing -Inject precision sine/square into amps, filters, op-amp stages—spot gain, phase, clipping. -Quick frequency-response sweep of audio gear; watch amplitude flatness on scope. -Impulse-response check: drive speaker or amp with narrow square edge, view ringing/decay.Oscilloscope Calibration & Maintenance -Calibrate horizontal sweep: lock scope time-base to generator’s crystal-locked 1 kHz – 500 kHz square. -Probe compensation: use fast square to trim 10× probe capacitors for perfect flat tops. -Attenuator test: verify scope Volts/div accuracy with known ±10 V p-p levels.Servicing & Alignment -Inject marker tones into radios, servos, sensors—listen/watch for correct response. -Align active crossovers, equalizers, tone stacks with repeatable sine steps. -Noise source for quick SNR, gain-bandwidth checks.On-the-go Debugging -Pocket tool for field repairs: confirm clock crystals, drive missing signals, test cable continuity with square wave TDR trick.

• 7 built-in shapes: Sine, square, triangle, ±sawtooth, noise, ECG. Toggle filter-silky sine or razor-sharp pulses on demand.
• 1 Hz – 500 kHz sine (flat to 200 kHz); 1 Hz – 20 kHz for other waveforms—usable beyond if extreme purity is not required
• 1 Hz resolution, settings auto-saved. Sine THD <1 % below 1 kHz, <0.5 % above. Crystal-based DDS stability—ideal for calibrating oscilloscope time-bases or probing amp frequency/impulse response
• 3.5 – 10 V DC input:Runs straight from any USB port (5 V recommended) or a single 3.7 V Li-ion cell (NOT included)
• 50 Ω output, ±10 V p-p amplitude, ±10 V DC-offset (defeatable). Square edge perfect for adjusting scope probes and attenuator compensation
• Field-friendly uses: Sweep amps, inject test signals, verify frequency/impulse response, or trim probe compensation—any bench, anywhere