Budget Waveform Generator Review

Introduction

The JDS 8080 is a young tech waveform signal generator that offers a range of features at an affordable price. In this review, we will take a look at the device straight out of the box, compare its performance, and see how it lives up to its claims.

Unboxing and Initial Impressions

Upon opening the package, we find the JDS 8080 waveform generator along with several accessories including a USB cable, BNC to B and C connector, two sets of BNC to alligator clip leads, and a standard power plug. The device itself is lightweight and feels solid with its standard button layout and a clickable rotary encoder. The screen is slightly larger than comparable models and offers equal space for both waveforms displayed. However, the viewing angles are narrow, especially from one side.

Functionality and Performance

The JDS 8080 offers various functionalities including the ability to generate different waveforms such as sine, triangle, CMOS, pulse, and more. The frequency, amplitude, offset, duty cycle, and phase can be adjusted for both channels. The frequency accuracy is impressive and matches with an external counter. The sine wave appears clean and free from distortion, while the other built-in waveforms also perform well for their intended purposes.

The amplitude range is adjustable, and the output remains stable throughout most frequencies. However, at higher frequencies, the amplitude begins to attenuate automatically. The square wave exhibits some ringing at the top and bottom, which is common for waveform generators in this price range.

The JDS 8080 also includes useful features such as sweep, modulation (amplitude and frequency), frequency counter, voltage-controlled oscillator, and a keypad lock. Additionally, an app is available for iOS and Android devices, allowing remote control of the generator.

Disassembly and Internal Components

Upon disassembling the device, we find a custom main board, possibly containing an ASIC or CPU. The board is chunkier compared to other models, and the switch mode power supply provides a basic 5V output. The components appear simple, with a lack of noise protection or shielding. However, bypassing the internal supply and using an external 5V supply can mitigate any noise issues.

Summary and Recommendation

Overall, the JDS 8080 Budget Waveform Generator delivers on its promises and offers a range of useful features at an affordable price. It performs well, providing accurate waveforms and adjustable parameters. While it may lack the precision and advanced capabilities of high-end generators, it is a great choice for beginners or those on a budget.

Keyword: JDS 8080, Budget Waveform Generator, Affordable, Waveform Generation, Frequency Accuracy, Amplitude Range, Built-in Waveforms, Sweep, Modulation, Frequency Counter, Voltage-Controlled Oscillator, Disassembly, Components

FAQ:

1. Is the JDS 8080 suitable for advanced lab work?

   • The JDS 8080 is more suitable for beginners or those on a budget. It may lack the precision and advanced capabilities required for advanced lab work.

2. Can the JDS 8080 be remotely controlled?

   • Yes, the JDS 8080 comes with an app for iOS and Android devices, allowing for remote control of the generator.

3. Does the JDS 8080 require an external power supply?

   • The JDS 8080 comes with a built-in power supply but can also be powered by an external 5V supply if desired.

4. How does the JDS 8080 compare to high-end waveform generators?

   • The JDS 8080 may not have the same precision and advanced features as high-end waveform generators. However, it offers a range of functionality and performs well for its price range.