Low Frequency Signal Generator | Sine and Square Wave | 10 Hz–1 MHz | 600 Ω | For Audio and Electronics Testing

Technical specifications

Product type: low-frequency signal generator / function generator
Generated waveforms: sine wave, square wave
Overall frequency range: 10 Hz – 1 MHz
Frequency accuracy: ±3 % + 1 Hz
Output impedance: 600 Ω
Output attenuator: 0 dB, 10 dB, 20 dB, 30 dB, 40 dB, 50 dB
Dimensions: 239 x 140 x 200 mm
Weight: approx. 3 kg
Purpose: audio, electronics, laboratory, repair and training work

Frequency ranges

×1 range: 10 Hz – 100 Hz
×10 range: 100 Hz – 1 kHz
×100 range: 1 kHz – 10 kHz
×1K range: 10 kHz – 100 kHz
×10K range: 100 kHz – 1 MHz

Sine wave

Output voltage: 5–6 V
Frequency response: 10 Hz – 1 MHz: ±0.5 dB

Sine wave distortion

400 Hz – 20 kHz: ≤0.1 %
100 Hz – 100 kHz: ≤0.3 %
50 Hz – 200 kHz: ≤0.5 %
20 Hz – 500 kHz: ≤1 %
10 Hz – 1 kHz: ≤1.5 %

Square wave

Output voltage: ≥10 Vp-p
Rise / fall time: 0.5 µs

Square wave distortion

400 Hz – 20 kHz: ≤0.1 %
100 Hz – 100 kHz: ≤0.3 %
50 Hz – 200 kHz: ≤0.5 %
20 Hz – 500 kHz: ≤1 %
10 Hz – 1 kHz: ≤1.5 %

Functions

Sine wave generation – designed for testing audio, analog circuits, amplifiers and filters
Square wave generation – used to check the response of pulse, logic and switching circuits
Frequency adjustment from 10 Hz to 1 MHz – allows testing across a wide low-frequency and audio signal range
Step frequency range selection – frequency is selected in ranges: 10–100 Hz, 100 Hz–1 kHz, 1–10 kHz, 10–100 kHz and 100 kHz–1 MHz
Adjustable output signal level – allows the signal to be adapted to different tested circuits
0–50 dB output attenuator – helps reduce signal strength when testing more sensitive electronic circuits
600 Ω output impedance – suitable for audio and measurement circuits where stable signal transmission is required
Sine wave output voltage 5–6 V – allows generating a sufficient signal for testing amplifiers, filters and other analog devices
Square wave output voltage ≥10 Vp-p – useful for checking pulse signal transmission and circuit response to sudden changes
Fast square wave rise / fall time of 0.5 µs – allows more accurate evaluation of circuit response to sudden signal transitions
Frequency accuracy ±3 % + 1 Hz – sufficient for general service, training and electronics testing tasks

Usage

For electronics hobbyists: Suitable for learning, electronics projects, signal observation with an oscilloscope and simple audio or electronic circuit testing.
For electronics service specialists: Used for diagnostics and fault finding in amplifiers, audio equipment, filters, analog circuits and electronic modules.
For engineers / designers: Suitable for prototype testing, frequency response checking, signal comparison and analysis of analog circuit operation.
For electricians / automation specialists: Can be used for checking signal inputs, control circuits, automation modules or low-frequency signal transmission.
For educational institutions / laboratories: Useful for practical electronics training, working with an oscilloscope, demonstrating sine and square waves and measurement exercises.

Advantages

Wide frequency range – from 10 Hz to 1 MHz
Two main signal waveforms – sine wave and square wave
Suitable for audio equipment – amplifiers, filters and audio circuits
Adjustable output attenuation – 0–50 dB in steps
600 Ω output impedance – convenient for audio and measurement circuits
Step frequency selection – easy to choose the required testing range

Disadvantages

Not a programmable digital DDS generator – does not have advanced digital functions
Limited waveform selection – generates only basic sine and square waves
Not suitable for high-frequency RF work above 1 MHz

What is this signal generator used for?

The signal generator is designed to generate sine and square wave signals. It is used for testing electronics, audio equipment, amplifiers, filters, analog circuits and laboratory experiments.

What frequency range does this signal generator support?

The generator operates from 10 Hz to 1 MHz. The frequency is selected in several ranges: 10–100 Hz, 100 Hz–1 kHz, 1–10 kHz, 10–100 kHz and 100 kHz–1 MHz.

Is this generator suitable for testing audio amplifiers?

Yes, it is suitable for testing audio amplifiers, filters, audio inputs and analog audio circuits. The sine wave helps evaluate audio signal transmission, while the square wave shows the circuit response to sudden signal changes.

What is the difference between a sine wave and a square wave?

A sine wave is used for testing analog and audio circuits because it is smooth and similar to natural audio signals.
A square wave is used to check the response of pulse, logic and switching circuits.