10 Best Function Generators for Hobbyists in 2026: Accurate, Affordable Picks for Bench Testing

Choosing the right signal source can make bench testing faster, cleaner, and far more repeatable. Whether you’re checking audio circuits, tuning filters, or validating microcontroller projects, the best function generators for hobbyists should be simple to use and accurate enough for real work.

This roundup focuses on practical options across budgets and use cases, from compact DDS units to higher-bandwidth arbitrary waveform generators.

Best 10 Function Generators for Hobbyists Picks for 2026

Precision Dual-Channel Pick – Koolertron 15MHz DDS Generator

If you’re comparing function generators for hobbyists, this Koolertron unit is a practical pick for hands-on bench work. It combines dual-channel DDS output, multiple standard waveforms, user-defined waveform storage, and measurement functions in one compact instrument.

Best For: Hobbyists who want a versatile dual-channel generator with sweep, measurement, and custom waveform support.

Pros:

• Dual-channel output with independent parameter settings
• Includes sine, square, triangle, sawtooth, pulse, white noise, and user-defined waveforms
• Supports linear and logarithmic sweep functions
• Offers frequency, period, pulse-width, and counting measurements

Cons:

• 15MHz sine output is lower than higher-end bench generators
• User-defined waveform length is limited to 2048 points each
• Interface details are not as modern as larger LCD-based units

Overall, this is a well-rounded choice if you want waveform flexibility and built-in measurement tools without moving into a more advanced lab-class generator. The 99 saved instrument states and 60 waveform storage slots add convenience for repeated hobby projects.

Portable High-Bandwidth Pick – OWON DGE1060 Waveform Generator

For hobbyists who want a more capable waveform source, this OWON generator brings 60MHz bandwidth, 300MSa/s sampling, and a large set of built-in arbitrary waveforms. It is a strong fit when your function generators for hobbyists shortlist needs a portable unit with a clear display and modern control features.

Best For: Hobbyists who want higher bandwidth, built-in waveform variety, and an easy-to-use portable design.

Pros:

• 60MHz bandwidth and 300MSa/s sampling rate
• 160 built-in arbitrary waveforms for flexible testing
• 3.6-inch TFT LCD with intuitive controls
• Supports AM, FM, PM, FSK, sweep, burst, and PC remote control

Cons:

• Only one output channel is listed in the notes
• 8K record depth may be limiting for some custom waveform work
• Some product details in the listing appear inconsistent, so specs should be double-checked

This model stands out if you value convenience and flexibility over extreme channel count. Its mix of modulation modes, waveform presets, and compact form makes it easy to keep on a hobby bench or carry between setups.

Compact Process-Test Pick – Riiai 4-20mA Signal Generator

This Riiai unit is a different kind of option among function generators for hobbyists, focusing on current, voltage, and PWM output and measurement instead of traditional audio-style waveforms. It is especially useful if your projects involve control systems, maintenance, or quick bench calibration.

Best For: Hobbyists and technicians who need a compact tool for voltage, current, and PWM testing.

Pros:

• Combines output and measurement for current, voltage, and PWM
• Supports customizable 0-24mA current and ±12V voltage output
• Includes one-click calibration and parameter storage
• Portable battery-powered design with USB-C and terminal power options

Cons:

• Not a traditional multi-waveform function generator
• PWM output is square-wave only
• Best suited to industrial-style testing rather than general waveform experimentation

If your hobby work leans toward electronics maintenance or process signal simulation, this model is very practical. Its safety protections and compact size make it easy to carry, while the color screen keeps setup straightforward.

Automation-Friendly Premium Pick – DGE2070 Dual-Channel Generator

For hobbyists who want a more advanced bench instrument, this 70MHz dual-channel model offers a strong mix of performance and control. It fits well in a function generators for hobbyists roundup when you want dual outputs, built-in waveforms, and PC-based automation in one device.

Best For: Hobbyists, students, and small labs that want dual-channel output with PC control and automation support.

Pros:

• 70MHz dual-channel output with 300MSa/s sampling
• Includes 5 basic waveforms plus 160 built-in waveforms
• Supports AM, FM, PM, FSK, sweep, and burst modes
• USB PC control with SCPI and LabVIEW support

Cons:

• More advanced than many casual hobbyists may need
• Front-panel operation may still benefit from PC setup for automation tasks
• Smaller and lighter than some bench units, which may matter to users wanting a larger console

This is the most feature-rich option here for users who want repeatable test routines and waveform editing from a computer. The combination of dual channels, broad modulation support, and a compact display makes it a capable space-saving bench tool.

Compact DDS Starter – 1Hz-500kHz Mini Kit

If you want function generators for hobbyists that keep things simple, this compact DDS kit is a practical entry point. It covers sine, triangle, square, sawtooth, pulse, and arbitrary waveforms, with battery or AC/DC adapter power for flexible bench use.

Best For: Hobbyists who want an affordable, portable signal source for basic electronics testing and audio work.

Pros:

• Wide waveform selection, including arbitrary output
• Portable design with battery or adapter power options
• Intuitive controls suited to less experienced users
• Stable, precise signal output with low distortion

Cons:

• Frequency range tops out at 500kHz
• Best suited to basic and mid-level bench tasks

Overall, this mini kit makes sense if you want a straightforward DDS generator for experimenting, testing audio circuits, or learning signal basics without adding unnecessary complexity.

Feature-Rich Dual-Channel – UTG932E 30MHz Generator

Among function generators for hobbyists, this dual-channel UNI-T model stands out for its broad feature set and ready-to-use package. It offers 30MHz output, 200MSa/s sampling, 14-bit resolution, and a wide range of waveform and modulation options for bench work.

Best For: Hobbyists, students, and small labs that want a capable all-around generator with lots of built-in tools.

Pros:

• Dual channels with channel combining support
• Multiple waveforms plus AM, FM, PM, and FSK modulation
• Built-in frequency counter and frequency scanning
• Includes cables and accessories for quick setup

Cons:

• More complex than a basic starter generator
• Overkill for simple one-waveform tasks

This is a strong pick if you want a budget-friendly bench generator that can handle hobby projects, audio testing, circuit troubleshooting, and other common lab-style jobs.

PC-Controlled Bench Pick – DGE1060 60MHz Generator

If you need function generators for hobbyists but want extra headroom for more advanced bench work, this OWON unit offers a lot in a compact single-channel design. It reaches 60MHz, uses a 300MSa/s sample rate, and adds PC control with SCPI support for repeatable tests and waveform editing.

Best For: Hobbyists and small labs that want a compact generator with PC-assisted control and custom waveform support.

Pros:

• 60MHz output with 14-bit resolution
• 160+ built-in waveforms plus custom waveform editing
• AM, FM, PM, FSK, sweep, and burst functions
• USB PC control with SCPI and waveform editor support

Cons:

• Single-channel only
• Fewer front-panel channels than dual-output alternatives

This model makes the most sense if you value repeatable, software-assisted testing and want a compact generator that still covers a wide range of electronics projects.

Budget Bench Pick – FG-200 DDS Function Signal Generator

If you want function generators for hobbyists that cover the basics without taking up much space, the FG-200 is a compact DDS source with sine, square, and sawtooth output. It is geared toward circuit testing, oscilloscope work, and quick debugging, with added features like frequency counter support, DC bias adjustment, and a filter option for cleaner higher-frequency sine output.

Best For: Hobbyists who want an affordable compact generator for oscilloscope checks, simple circuit tests, and waveform experimentation.

Pros:

• 0.01Hz to 500kHz sine output, with other waveforms up to 100kHz listed.
• Useful for circuit debugging, frequency response checks, and scope calibration.
• Includes DC bias control, output filter, and saved settings.
• Runs from DC4-9V adapters or 3.7V lithium batteries.

Cons:

• Output amplitude decreases as sine frequency increases.
• Best waveform cleanliness at higher sine frequencies depends on using the filter.
• More limited than larger bench generators for advanced arbitrary-wave work.

This is a practical low-profile choice if you need a simple DDS generator for hands-on electronics projects. It looks especially useful as a bench companion to an oscilloscope rather than as a full-featured lab instrument.

Feature-Rich Dual Channel – Seesii FG-615 DDS Generator

Among function generators for hobbyists, the Seesii FG-615 stands out if you want more control and flexibility on the bench. It combines dual-channel DDS output, user-defined waveform storage, and a 2.4-inch LCD with sweep and measurement features, making it a strong fit for experimenting with different signal shapes and comparing channels.

Best For: Hobbyists who want a dual-channel generator with customizable waveforms, sweep tools, and built-in measurement functions.

Pros:

• Dual-channel output with independently adjustable parameters and duty cycle.
• Up to 15MHz sine output with 200MSa/s sampling.
• Stores 99 instrument settings and 60 custom waveforms.
• Includes frequency, period, pulse width, and counting functions.

Cons:

• More complex than a basic single-purpose function generator.
• Best value comes if you will actually use the custom waveform and sweep tools.
• Physical size is larger than pocket-style mini generators.

This model makes sense if you want a hobby bench tool that can grow with your projects. The combination of dual channels, waveform storage, and sweep functions gives it more room for experimentation than a basic entry-level unit.

Workhorse With USB Control – YERTAI ET3320C Function Generator

The YERTAI ET3320C is a solid choice if you are comparing function generators for hobbyists and want dual channels plus a broader control set. It offers a 20MHz DDS range, basic and arbitrary waveforms, USB communication, and modulation options, so it suits users who want more than a simple output box but still need a straightforward bench tool.

Best For: Hobbyists who want a dual-channel generator with USB connectivity, arbitrary waveform support, and modulation features.

Pros:

• 20MHz frequency range with 200MSa/s sampling and 13-bit vertical resolution.
• Built-in 5 basic waveforms plus 32 arbitrary waveforms.
• Stores 50 custom edited waveforms internally.
• Includes USB device communication and ASK, FSK, and PSK modulation.

Cons:

• Arbitrary waveform editing software must be obtained from the manufacturer.
• Fewer stored waveforms than some higher-end rivals.
• Not the most compact option in this group.

This generator is a practical middle ground for hobby labs that need waveform variety and computer connectivity. The measurement counter and modulation support make it useful for a wider range of experiments than a basic entry-level model.

How We Picked the Best Function Generators for Hobbyists

We selected models that balance everyday usability with useful lab features for Function Generators for Hobbyists. Priority went to clear waveform selection, stable output, useful frequency coverage, and controls that make setup straightforward. We also considered dual-channel support, arbitrary waveform capability, PC control, and built-in measurement features where they add real value.

Quick Comparison

For simple audio and low-frequency testing, a basic DDS generator can be enough. If you need more flexibility, arbitrary waveform models offer broader shaping and better support for custom signals. Higher-bandwidth units are the better fit for RF-adjacent work, fast digital edges, or more demanding electronics testing. Battery-powered and combo signal source units can be especially convenient for field checks or mixed-signal troubleshooting.

Key Buying Factors for Function Generators for Hobbyists

Frequency Range and Bandwidth

Choose a range that matches your projects. Audio and sensor work usually needs far less than 1 MHz, while embedded, clock, and general circuit testing often benefits from 20 MHz to 60 MHz or more. Don’t pay for bandwidth you won’t use, but avoid a unit that will quickly feel limited.

Waveform Quality and Resolution

Sine, square, triangle, and sawtooth are the essentials. Arbitrary waveform support is valuable if you want to emulate nonstandard signals. Higher sample rates and vertical resolution generally improve output fidelity, especially at higher frequencies.

Channel Count and Controls

Dual-channel output is useful when comparing two signals, driving differential tests, or running synchronized experiments. A readable display, responsive knob control, and logical menus matter more than they may seem at first, especially for frequent use.

Measurement and Connectivity

Built-in frequency counting, USB connectivity, SCPI support, and PC software can simplify repetitive testing and documentation. For many hobbyists, these features are more helpful than extra marketing claims.

Who Should Buy Which Function Generators for Hobbyists?

If you’re a beginner or mostly testing audio circuits, a compact DDS generator is usually the most cost-effective choice. If you build mixed-signal or microcontroller projects, a midrange dual-channel arbitrary generator offers a better long-term fit. If you want the most flexibility for advanced bench work, look for a higher-frequency unit with strong sampling performance, PC control, and clean output behavior. For portable troubleshooting or current-loop work, a specialized signal generator may be the smarter pick than a traditional bench unit.