Best USB Arbitrary Waveform Generators for Precision Signal Testing
Exploring the world of arbitrary waveform generators can be transformative for engineers, hobbyists, and researchers who require precise and versatile signal generation. This article compiles a detailed overview of top USB arbitrary waveform generators available on Amazon, focusing on key features like frequency range, channel count, sample rate, modulation capabilities, and portability. Below is a summary table showcasing the selected models, aiding a quick comparison before delving into detailed reviews.
| Product Name | Frequency Range | Channels | Sample Rate | Modulation Types | Special Features |
|---|---|---|---|---|---|
| UNI-T UTG962E Handheld 60MHz 2Ch | Up to 60 MHz | 2 | 200 MS/s | AM, FM, PM, FSK | 4Kpts memory depth, Compact size |
| Siglent Technologies SDG810 | Up to 10 MHz | 1 | 125 MSa/s | AM, DSB-AM, FM, PM, FSK, ASK, PWM | 14-bit vertical resolution, 46 built-in arbitrary waveforms |
| OWON DGE2035 Dual-Channel 35MHz | Up to 35 MHz | 2 | 125 MSa/s | AM, FM, FSK | 3.6″ TFT LCD, PC control, 150 built-in waveforms |
| YERTAI ET3320C 20MHz Dual Channel | Up to 20 MHz | 2 | 200 MSa/s | Various basic and arbitrary waveforms | 320×240 TFT LCD, 100MHz frequency counter |
| UNI-T UTG962E Arbitrary Waveform Generator Kit | Up to 60 MHz | 2 | 200 MSa/s | AM, FM, PM, FSK, Line, Log | 24 groups non-volatile storage, 14-bit vertical resolution |
UNI-T UTG962E Handheld 60MHz 2Ch Arbitrary Waveform Generator
The UNI-T UTG962E offers a high-performance 60 MHz maximum frequency with dual-channel output suitable for demanding signal generation tasks. Its 200 MS/s sampling rate and 4K points memory depth provide precise waveform construction. This compact, palm-sized device supports sine, square, ramp, pulse, noise, DC, and arbitrary waveforms, combined with modulation capabilities including AM, FM, PM, and FSK.
Versatility is enhanced by dual-channel outputs and storage for up to 24 non-volatile arbitrary waveforms. Connectivity via USB and included accessories such as a power adapter and BNC cables make it ready for flexible application in labs or field testing.
Siglent Technologies SDG810 Single Channel 10 MHz Signal Generator
The Siglent SDG810 is a focused single-channel waveform generator with a 10 MHz bandwidth and a high 125 MSa/s sample rate, paired with a 14-bit vertical resolution for clear, precise signal output. It supports five standard waveforms plus 46 built-in arbitrary waveforms including DC.
Modulation options are comprehensive with AM, DSB-AM, FM, PM, FSK, ASK, PWM, as well as linear and logarithmic sweeps and burst modes. Its advanced DDS technology provides stable performance, making it suitable for various educational and professional experimental setups.
OWON DGE2035 Dual-Channel 35MHz Arbitrary Waveform Generator
The OWON DGE2035 stands out for its dual-channel capability with a 35 MHz max frequency, 125 MSa/s sample rate, and 14-bit vertical resolution ensuring highly accurate waveform generation. It offers 5 standard waveforms plus 150 built-in arbitrary waveforms.
The device features a bright 3.6-inch TFT LCD that clearly displays waveform settings and status. Its compact and user-friendly design, alongside PC control options, makes it well-suited for lab testing, research experiments, and educational use.
YERTAI ET3320C 20MHz Dual Channel Signal Generator with Frequency Counter
The YERTAI ET3320C offers a 20 MHz frequency range with a 200 MSa/s sampling rate and 13-bit vertical resolution. It features a bright 2.4-inch 320×240 TFT LCD for clear waveform visualization and user-friendly operation.
This generator supports 5 basic waveform types plus 32 arbitrary waveforms and can internally store up to 50 customized waveform sets. Additionally, it includes a high precision 100 MHz frequency counter and a 32-bit counter, making it versatile for both signal generation and frequency measurement.
UNI-T UTG962E Arbitrary Waveform Generator Kit 60MHz Dual-Channel
This UNI-T UTG962E model provides dual channels with a max frequency output of 60 MHz, supporting sine, square, pulse, ramp, noise, DC, and arbitrary waveforms. It applies DDS technology with 14 bits vertical resolution and offers high accuracy frequency measurements.
The device supports a variety of modulation types: AM, FM, PM, FSK, plus line and logarithmic modulation. It also features 24 groups of non-volatile arbitrary waveform storage and comprehensive frequency scanning and output capabilities, ideal for advanced testing and signal generation tasks.
Buying Guide: Key Factors When Choosing a USB Arbitrary Waveform Generator
Frequency Range and Bandwidth
Choose a waveform generator with a frequency range that meets or exceeds your application requirements. Higher maximum frequencies allow more complex signal types but may come at a premium. Commonly, versatile devices support up to 60 MHz, which covers a wide range of lab and educational uses.
Number of Channels
The choice between single or dual-channel devices depends on your need for simultaneous multiple signals. Dual channels provide flexibility to output different waveforms concurrently, essential for multi-signal testing scenarios.
Sampling Rate and Resolution
A higher sampling rate (MSa/s) allows more detailed waveform reproduction, while vertical resolution in bits determines signal amplitude precision. For most engineering tasks, values from 125 MSa/s and above, with 14-bit or better vertical resolution, strike a good balance between performance and cost.
Memory Depth and Waveform Storage
Memory depth (in points) impacts the maximum length and complexity of generated arbitrary waveforms. Devices offering internal storage for multiple waveforms support more convenient switching during experiments without frequent reprogramming.
Modulation Capabilities
Modulations like AM, FM, PM, FSK, ASK, and PWM expand the utility of waveform generators, enabling simulation of real-world signal conditions. Selecting generators with a broad range of modulation options increases experimentation versatility.
Display and User Interface
Clear colored LCD or TFT displays with intuitive menus enhance usability and reduce user errors. Screens that show real-time waveform status and parameter settings are advantageous, especially for complex signal adjustments.
Connectivity and Portability
USB connectivity facilitates easy PC control and data transfer. Compact and portable devices are ideal for fieldwork or limited bench space. Check the included accessories like cables and power adapters for immediate usability.
Additional Features
Extra features such as built-in frequency counters, sweep functions, and PC software support can improve workflow efficiency, precise measurement, and waveform customization. These are worth considering based on professional or educational needs.