Best Spectrum Analyzers of 2025
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Spectrum analyzers are essential tools in the field of electronics, providing a visual representation of the frequency spectrum of a signal. They are used to measure and analyze the frequency, amplitude, and phase of signals, making them useful in a variety of applications, such as telecommunications, audio engineering, and scientific research. Spectrum analyzers come in various forms, from portable handheld devices to benchtop models with advanced features, and are available at different price points to accommodate different budgets. With their ability to identify and isolate frequency components, spectrum analyzers are an invaluable asset to any engineer or technician working with electronic signals.
At a Glance: Our Top Picks
#TOP 1
9.8
#TOP 2
9.7
#TOP 3
9.5
Top 10 Spectrum Analyzers
Siglent SSA3021X-TG Spectrum Analyzers
The Siglent SSA3021X-TG Spectrum Analyzers utilize all-digital IF technology and have a frequency range of 9 kHz up to 2.1 GHz. With a 161 dBm/Hz displayed average noise level, 98 dBc/Hz @10 kHz offset phase noise (1 GHz, Typ.), and 1 Hz minimum resolution bandwidth (RBW), this product provides high accuracy measurements. This makes it ideal for use in RF signal analysis, broadcast/EMI, education, research, and manufacturing.
ALIESTFDNO TinySA Ultra Spectrum Analyzer
The ALIESTFDNO TinySA Ultra is a versatile spectrum analyzer that features a large 4.0-inch touchscreen display, allowing you to easily navigate its functions. With a wide frequency measurement range from 100kHz to 5.3GHz, it helps you analyze various signals effectively. Its dual functionality as a signal generator provides sine wave and square wave outputs, expanding its utility for your projects. Additionally, connecting it to a PC via USB transforms it into a controlled spectrum analyzer, enabling you to perform detailed measurements and data management effortlessly.
2023 Upgraded TinySA Ultra Spectrum Analyzer
The 2023 Upgraded TinySA Ultra Spectrum Analyzer has a 4.0 inch 480 x 320 large touchscreen display with a measurement range of 100kHz to 5.3GHz, built-in 32Gb micro SD card for data sharing, and a switchable resolution band pass filters for both ranges between 200Hz to 850kHz. It also has a 2-in-1 function as a multifunctional frequency analyzer & signal generator, and can be connected to a PC via USB. Additionally, it has an ultra-long battery life and comes with a package list of accessories.
Rigol DSA815-TG Spectrum Analyzer
The Rigol DSA815-TG Spectrum Analyzer is a powerful tool with a frequency range from 9 kHz to 1.5 GHz, 10 Hz minimum resolution bandwidth, and a displayed average noise level of min. -161 dBm. It has advanced measurement functions, an 8-inch WVGA display, and options for EMI filter & quasi-peak detector kit, VSWR measurement kit, and PC software. The level measurement uncertainty is < 0.8 dB, and the phase noise is min. < -98 dBc/Hz @ 10 kHz offset.
AURSINC TinySA Ultra Spectrum Analyzer
The AURSINC TinySA Ultra Spectrum Analyzer is a high-performance handheld frequency analyzer and signal generator. With a frequency range of 100kHz to 800MHz (5.3GHz in ultra mode), it offers professional-grade performance and ease of operation. The analyzer features a 4-inch touchscreen display and the latest hardware system, making it more stable, sensitive, and easy to use. It also has a PC operation mode, allowing it to be connected to a computer via USB and used as a PC-controlled spectrum analyzer or signal generator. The built-in SD card slot and included 32GB microSD card solve the issue of saving onsite data, making it convenient to take the TinySA Ultra anywhere. Additionally, it offers a 2-in-1 functionality as a spectrum analyzer and signal generator, making it versatile for various applications. With its compact design and long battery life of up to 8 hours, the AURSINC TinySA Ultra is the perfect tool for professionals and enthusiasts alike.
Portable tinysa Spectrum Analyzer
The Portable tinysa Spectrum Analyzer - AURSINC V0.3.1 Hand Held Frequency Analyzer is a versatile device that can be used as a Spectrum Analyzer with a frequency range of 100kHz to 960MHz, and as a Signal Generator with a sinus output between 0.1MHZ-350MHz and a square wave output between 240MHz-960MHz. It has 4 input/output mode specifications and can be controlled via USB interface using Serial over USB (CDC) protocol. The device also has ESD protection diodes and a 2.8 inch touchscreen display that shows 290 scan points covering up to the full low or high frequency range.
Siglent SSA3021X Plus Spectrum Analyzer
The Siglent SSA3021X Plus Spectrum Analyzer offers a wide frequency range of 9 kHz to 2.1 GHz, with a high phase noise of 98 dBc/Hz, and a low minimum Displayed Average Noise Level (DANL) of -161 dBm/Hz. Its 10.1 inch touch screen displays with a resolution of 1024x600. The device includes a tracking generator and pre-amplifier, making it an all-in-one solution for measuring signals.
AURSINC NanoVNA-H Vector Network Analyzer
The AURSINC NanoVNA-H Analyzer offers impressive features that enhance your measurement experience. The upgraded hardware allows you to save measurement data and screenshots directly to a MicroSD card, making data management easier. With an improved frequency algorithm, you can measure frequencies up to 1.5GHz, providing accurate results for your antenna performance evaluations. The device supports both Android phones and PC control, allowing for a more interactive experience on larger screens. Additionally, its built-in battery provides up to two hours of continuous use, giving you flexibility during your measurements.
TOSTOG TinySA Ultra Spectrum Analyzer
The TOSTOG TinySA Ultra Spectrum Analyzer is a powerful handheld device that offers a wide range of features. With its upgraded hardware and 4-inch touch display screen, you can easily view clear data images and operate the device with ease. The spectrum analyzer has a frequency range of 100kHz to 5.3GHz, allowing you to accurately measure signals. It also doubles as a signal generator, providing a built-in calibration signal generator for self-testing and low input calibration. Additionally, the TinySA can be connected to a PC for further analysis and control. With its comprehensive package, including cables, connectors, and a 32GB microSD card, the TOSTOG TinySA Ultra Spectrum Analyzer is a versatile tool for professionals and enthusiasts alike.
SDRGEEK 2023 TinySA Ultra Spectrum Analyzer
The SDRGEEK 2023 TinySA Ultra Spectrum Analyzer is a portable and versatile device that offers a wide range of features for spectrum analysis and signal generation. With its 4-inch large screen and sensitive touch operation, it provides clear data images and easy control. The ULTRA Tinysa developed by Hugen has an ultra-wide frequency range from 100kHz to 5.3GHz, allowing you to analyze signals in a broad spectrum. The built-in calibration signal generator enables automatic self-test and low input calibration, making it convenient for accurate measurements. With a 32GB SD card included, you can easily record and store data for future analysis. The 3000mAh rechargeable battery ensures up to 8 hours of continuous use, and the PC control feature allows for easy data transfer to your computer. The SDRGEEK TinySA Ultra is a professional and reliable tool for spectrum analysis and signal generation.
Frequently Asked Questions (FAQs)
1. What does a spectrum analyzer do?
A spectrum analyzer is a device used to measure and display the strength of signals at different frequencies within its frequency range. It shows the frequency on the horizontal axis and the amplitude on the vertical axis, allowing users to analyze and understand the spectral characteristics of a signal.
2. What are the three types of spectrum analyzer?
There are three main types of spectrum analyzers: swept-tuned spectrum analyzers, vector signal analyzers, and real-time spectrum analyzers. Each type has its own advantages and applications in the electronics industry.
3. Who would use a spectrum analyzer?
Spectrum analyzers are used by professionals in various fields of the electronics industry, including RF design and testing, electronic circuit design, electronic manufacturing, and electronic maintenance. They are essential tools for analyzing signal levels and characteristics in the frequency domain.
4. How accurate is a spectrum analyzer?
The accuracy of a spectrum analyzer depends on the specific model and its specifications. Many spectrum analyzers offer excellent absolute amplitude accuracy at a reference frequency, typically around 50 MHz. For example, the X-Series signal analyzer provides an absolute amplitude accuracy of ± 0.24 dB at the reference frequency.
5. What is the difference between a spectrum analyzer and a signal analyzer?
While spectrum analyzers focus on measuring the amplitude or magnitude of signals at different frequencies, a signal analyzer can measure various aspects of a signal, including modulation. Signal analyzers optimize both the analog front end and the digital back end to achieve high performance in analyzing signals.
6. What are the advantages and disadvantages of spectrum analyzer?
The advantages of a spectrum analyzer include measuring the spectral quantity of signals in the radio frequency range and providing multiple measurements. However, a disadvantage is that spectrum analyzers tend to be more expensive compared to conventional meters.
During our spectrum analyzer research, we found 24 spectrum analyzer products and shortlisted 10 quality products. We collected and analyzed 9,387 customer reviews through our big data system to write the spectrum analyzers list. We found that most customers choose spectrum analyzers with an average price of $206.39.
The spectrum analyzers are available for purchase. We have researched hundreds of brands and picked the top brands of spectrum analyzers, including Siglent, ALIESTFDNO, Seesii, Rigol, AURSINC. The seller of top 1 product has received honest feedback from 385 consumers with an average rating of 4.7.
Brian Howie is a content writer and senior industrial designer. After graduation from Westminster College, he has been engaged in product design and manufacturing for 18 years. Brian Howie has always found great pleasure in designing industrial products and sharing his ideas and experience online.