---
product_id: 18821484
title: "Siglent Technologies SDG2042X Arbitrary Waveform Function-Generators, 40 MHz, Grey"
brand: "siglent"
price: "¥201450"
currency: JPY
in_stock: true
reviews_count: 13
category: "Siglent"
url: https://www.desertcart.jp/products/18821484-siglent-technologies-sdg2042x-arbitrary-waveform-function-generators-40-mhz-grey
store_origin: JP
region: Japan
---

# 40 MHz max frequency 4.3-inch touch screen 16-bit vertical resolution Siglent Technologies SDG2042X Arbitrary Waveform Function-Generators, 40 MHz, Grey

**Brand:** siglent
**Price:** ¥201450
**Availability:** ✅ In Stock

## Summary

> ⚙️ Precision meets power — generate your future waveforms today!

## Quick Answers

- **What is this?** Siglent Technologies SDG2042X Arbitrary Waveform Function-Generators, 40 MHz, Grey by siglent
- **How much does it cost?** ¥201450 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/18821484-siglent-technologies-sdg2042x-arbitrary-waveform-function-generators-40-mhz-grey)

## Best For

- siglent enthusiasts

## Why This Product

- Trusted siglent brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Seamless Connectivity:** USB and LAN interfaces enable effortless integration into your test bench or remote setups—plus optional GPIB for legacy systems.
- • **Dual-Channel Powerhouse:** Simultaneously generate complex waveforms with two independent outputs for ultimate lab flexibility.
- • **TrueArb & EasyPulse Tech:** Experience industry-leading arbitrary waveform precision and pulse shaping that outperforms traditional DDS generators.
- • **Intuitive Touchscreen Interface:** Navigate complex functions with a crisp 4.3-inch color touchscreen designed for fast, frustration-free operation.
- • **High-Precision Frequency Counter:** Built-in counter ensures exact frequency measurements, eliminating guesswork in critical testing scenarios.

## Overview

The Siglent SDG2042X is a professional-grade dual-channel arbitrary waveform generator delivering up to 40 MHz sine wave frequency with 16-bit vertical resolution. Featuring proprietary TrueArb and EasyPulse technologies, it ensures superior waveform accuracy and versatility. Its 4.3-inch touchscreen, built-in frequency counter, and multiple connectivity options (USB, LAN, optional GPIB) make it an indispensable tool for engineers and lab professionals seeking reliable, high-performance signal generation.

## Description

Siglent's new SDG2000X series of function generators offer a 1.2 GSa/s interpolated sample rate with 16 bits of vertical resolution. The proprietary TrueArb & EasyPulse techniques help to solve weaknesses inherent in traditional DDS generators when generating arbitrary, square, and pulse waveforms. Siglent's EasyWave arbitrary waveform software is included.

Review: "Power and precision at your fingertips" - ⚙️ Siglent SDG2042X – Precision, versatility, and dependable support I purchased this function generator to replace a BK Precision 4040A, and it’s been a significant upgrade. The SDG2042X comes loaded with reference examples that are extremely helpful during technical work, especially when testing frequency response and attenuation in dB. 🌐 Its Ethernet interface allows seamless integration with my oscilloscope, making synchronized measurements and deeper analysis much easier. 🔧 Although manufactured in China, Siglent North America handles warranty and support, and based on my experience with three of their devices, they’ve always been professional and reliable. 💡 With solid build quality, accurate signal generation, and a wide range of features, this is an excellent tool for labs and professionals. Absolutely worth every penny.
Review: Easily portable and performs very well - I purchased this after a friend recommended it when I said I needed a signal generator for troubleshooting work. I was skeptical as the product is made in China. But the quality is very good and the user interface is quite simple. It passed my usual test - could I get it to do basic stuff without reading the instructions. It has quite a range of capability - most standard waveforms (sine, square, triangle, pulse) are built-in. So is a noise waveform. It has an arbitrary function capability so you can enter a waveform via the USB or network interface (standard Ethernet) connection and it will then generate it and let you vary amplitude and frequency. The display is quite sharp and the screen is large enough to be easily read. The relatively small size means it does not take up a lot of space on your workbench or if you are carrying it around. A nice, well-made (though I did not open it up - I'm judging by the way the controls feel and work) product for a reasonable price. If I ever need to replace my Tektronix digital oscilloscope, having purchased this Siglent product will get me to look at their oscilloscope line as well.

## Features

- Dual channel * 40 MHz (Sine wave) * Touch screen display
- 16 bit vertical resolution * Modulation / Sweep / Burst
- TrueArb Technology / Easy Pulse Technology
- Built-in high precision Frequency Counter
- USB / LAN interfaces. Optional GPIB adapter available

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01410O55U |
| Best Sellers Rank | #98,055 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #37 in Function Generators |
| Date First Available | August 28, 2015 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 1.6 pounds |
| Item model number | SDG2042X |
| Manufacturer | Siglent Technologies |
| Product Dimensions | 10.2 x 4.2 x 11.6 inches |

## Images

![Siglent Technologies SDG2042X Arbitrary Waveform Function-Generators, 40 MHz, Grey - Image 1](https://m.media-amazon.com/images/I/518ibmqj3NS.jpg)

## Available Options

This product comes in different **Style** options.

## Questions & Answers

**Q: What is the power source required? will it run in 220-240v ac?**
A: The power requirements from the back of the device: 
100 - 240 50/60 Hz
100 - 120 400 Hz

**Q: Can the siglent technologies sdg2042x be used as a rf signal generator for ham radio repair and alignments? tone generator for audio input?**
A: The nice thing about the Siglent sdg2042x is it's built like a tank.  It feel like military gear.  It can be used as a sine wave from DC to 40MHz and square up to 25MHz.  Frequency has a 7 digit resolution. (1MHz has a resolution of 1Hz) I could only get the amplitude to show up in volts.  (Couldn't find a dBm unit conversion)  The amplitude goes from 1mVp-p to 20Vp-p.  It allows you to change impedance to 50 ohm or High Z.  It has a mode that lets you mix both outputs internally.  It allows you to couple the channels and adjust phase between channels.  For tone, the sine wave has a function that lets you adjust the amplitude and phase of up to 9 harmonics on that signal. (I use this function to teach how square waves are created) It also has a bunch of built in arbitrary waveforms and the software to create your own.

**Q: When powering on i get a warning "overvoltage detected!" which disappears in a couple of seconds.what could be wrong?no response from support@siglent**
A: This is a firmware problem, incorrect error. Latest firmware fixes this.

**Q: Is this the sdg2042x model - with an x at the end?**
A: yes it is.  i had the same question before purchasing.  the specs show the resolution for the 'x' model.

## Customer Reviews

### ⭐⭐⭐⭐⭐ "Power and precision at your fingertips"
*by N***. on July 25, 2025*

⚙️ Siglent SDG2042X – Precision, versatility, and dependable support I purchased this function generator to replace a BK Precision 4040A, and it’s been a significant upgrade. The SDG2042X comes loaded with reference examples that are extremely helpful during technical work, especially when testing frequency response and attenuation in dB. 🌐 Its Ethernet interface allows seamless integration with my oscilloscope, making synchronized measurements and deeper analysis much easier. 🔧 Although manufactured in China, Siglent North America handles warranty and support, and based on my experience with three of their devices, they’ve always been professional and reliable. 💡 With solid build quality, accurate signal generation, and a wide range of features, this is an excellent tool for labs and professionals. Absolutely worth every penny.

### ⭐⭐⭐⭐⭐ Easily portable and performs very well
*by P***N on December 25, 2020*

I purchased this after a friend recommended it when I said I needed a signal generator for troubleshooting work. I was skeptical as the product is made in China. But the quality is very good and the user interface is quite simple. It passed my usual test - could I get it to do basic stuff without reading the instructions. It has quite a range of capability - most standard waveforms (sine, square, triangle, pulse) are built-in. So is a noise waveform. It has an arbitrary function capability so you can enter a waveform via the USB or network interface (standard Ethernet) connection and it will then generate it and let you vary amplitude and frequency. The display is quite sharp and the screen is large enough to be easily read. The relatively small size means it does not take up a lot of space on your workbench or if you are carrying it around. A nice, well-made (though I did not open it up - I'm judging by the way the controls feel and work) product for a reasonable price. If I ever need to replace my Tektronix digital oscilloscope, having purchased this Siglent product will get me to look at their oscilloscope line as well.

### ⭐⭐⭐⭐⭐ Great Tool for a Ham Radio Operator
*by M***C on April 27, 2023*

This is a very nice instrument. It is not cheap, but nice. It is also a lot less to the very high end signal generators. It is good for HF ham radio work. The capacitive touch screen is very handy and easy to use, but I would say the same for the button operated menu system as well. I had no trouble connecting to my LAN and using the PC software for this as well.

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-03-30*