Review: The TinySA Spectrum Analyzer: A Compact Powerhouse for RF Enthusiasts on a budget

Have you ever wanted a Spectrum Analyzer that literally fits in your shirt pocket, well this compact powerhouse fits that bill exactly.

I’ve owned a few spectrum analyzers over the years, but I found these and I thought, well they are small, and won’t take up a lot of excess space as opposed to a Tectronics or similar, so I treated myself to this.

The TinySA spectrum analyzer has earned its place as a favorite tool among hobbyists, engineers, and radio enthusiasts. This portable, versatile device packs a punch with its features and affordability, making it an essential tool for RF signal analysis and troubleshooting.

What is the TinySA Spectrum Analyzer?

The TinySA is a compact spectrum analyzer that doubles as a signal generator. It comes in two main models: the TinySA Basic and the TinySA Ultra/Ultra+, each catering to specific frequency ranges and use cases. Whether you’re a beginner or a seasoned professional, the TinySA delivers impressive performance in a portable package.

Key Features:

1. Portability: Lightweight and battery-powered, the TinySA is perfect for both fieldwork and desktop use. The rechargeable battery ensures at least 2 hours of operation.
2. Frequency Range:
   • TinySA Basic: Covers 0.1 MHz to 350 MHz for high-quality signals, and 240 MHz to 960 MHz for lesser-quality inputs.
   • TinySA Ultra: Extends the range up to 5.3 GHz in Ultra mode, with observation capabilities for signals up to 12 GHz.
3. Signal Generator: Produces sine wave outputs for low frequencies and square wave outputs for higher ranges.
4. Clear Display: The TinySA Basic offers a 2.8-inch color display, while the TinySA Ultra upgrades to a 4-inch screen, ensuring clear and precise visuals.
5. PC Connectivity: Connect your TinySA to a PC via USB for enhanced control and data analysis.
6. Built-In Features: Includes calibration options, MicroSD support for the Ultra models, and customizable firmware updates.

Why Choose TinySA?

The TinySA stands out for its affordability, functionality, and ease of use. Here’s why it’s a favorite among RF professionals:

• Affordable Excellence: At its price point, the TinySA delivers a level of performance that rivals more expensive spectrum analyzers.
• Versatile Use: Whether you need it for signal analysis, as a signal generator, or even as a learning tool, the TinySA adapts to your needs.
• Active Community and Support: Benefit from an engaged user base and extensive resources, including official documentation, manuals, and video tutorials.

Limitations to Consider

While the TinySA offers impressive capabilities, there are a few limitations:

• It may not provide the noise floor precision of high-end analyzers.
• The Ultra model’s advanced features, like Ultra mode, require careful calibration.
• Be cautious of counterfeit products—only purchase from authorized sellers (find details here).

PC Connectivity and Modes

The TinySA connects to your computer via USB and operates primarily in Serial over USB mode (also called “console mode”). This allows users to control the analyzer using compatible software. It also supports DFU mode (Device Firmware Update) for updating the firmware. The drivers required for Serial over USB mode are pre-installed in Windows and Linux, so setup is hassle-free.

Software Options for PC Control

1. Python Library A dedicated Python library is available for controlling the TinySA and TinySA Ultra. This option is highly versatile, allowing users to automate tasks, capture measurements, and analyze data programmatically. It works across Windows, Linux, and possibly macOS. You can explore the Python library here (works sometimes, not others).
2. Windows Application The TinySA-App for Windows is a graphical interface for controlling both TinySA Basic and Ultra models. While still in development, it provides essential functionality for interacting with the device. You can download the app here (Works Sometimes)
3. Graphical Interface via Python Another Python-based graphical interface, developed by the community, runs on Windows, Linux, and macOS. This application offers a more user-friendly approach for tasks like visualization and data capture. Check out the graphical interface on GitHub Here (Workin)

Features of PC Integration

• Remote Control: Adjust settings, frequencies, and measurement parameters directly from your PC.
• Data Logging: Capture and save frequency sweeps or other data for in-depth analysis.
• Screen Capture: Take screenshots of the TinySA’s display for documentation or sharing.
• Improved Visualization: Use the larger PC screen for easier interpretation of complex spectra.

Troubleshooting PC Connectivity

If you encounter issues when connecting to a PC, ensure that your system detects the TinySA as a “USB Serial Device.” If it appears as an “Unknown Device,” uninstall it via Device Manager, then switch the TinySA off and on to resolve the issue.

PC control enhances the versatility of the TinySA, making it a powerful tool for advanced signal analysis, data handling, and automation. For detailed instructions and downloads, visit the official TinySA PC Control page.

Conclusion: A Must-Have for RF Enthusiasts

The TinySA spectrum analyzer is an outstanding tool for its size and price. Whether you’re troubleshooting RF signals, analyzing frequency spectra, or exploring the world of radio, this device combines portability and power with exceptional value. Check out the official TinySA website for more details, purchase options, and user guides.

A short 7 minute video introducing the main features of the tinySA can be found here.
A short introduction video to the tinySA Ultra can be found here.
Many more videos in my YouTube channel
A user has created an very extensive introduction video to the tinySA Ultra which can be found here

Please feel free to comment below.