Best Spectrum Analysers of 2025

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Spectrum analysers are electronic test instruments used to measure and display the frequency spectrum of a signal. They are widely used in the telecommunications industry, as well as in research and development, to analyse and troubleshoot electronic equipment. Spectrum analysers can be used to measure the power, frequency, and distortion of a signal, and they can also be used to identify interference and noise in a signal. With their ability to visualise and analyse signals, spectrum analysers are an essential tool for any engineer or technician working with electronic equipment.
At a Glance: Our Top Picks
Top 10 Spectrum Analysers
GQ EMF-390 Multi-Field Radiation Detector
The GQ EMF-390 Detector is equipped with multiple high sensitivity sensors, allowing you to detect sources of electromagnetic radiation such as power lines, smart meters, and microwaves. This means you can easily identify common sources of EMF in your environment. It also provides safety suggestions, helping you understand your current situation instantly. With RF detection capabilities up to 10GHz and EMF up to 400kHz, you can monitor potentially harmful radiation levels effectively. The built-in RF Spectrum analyser offers real-time monitoring, ensuring you stay informed about your surroundings.
2024 Seesii TinySA Ultra Spectrum Analyzer
The Seesii TinySA Ultra is an advanced spectrum analyser featuring a 4.0-inch touchscreen display and an impressive frequency range from 100kHz to 5.3GHz. This upgraded model includes ESD protection for enhanced durability and a built-in 32GB micro SD card for easy data storage and sharing. You can also use it as a signal generator with various output options, making it versatile for different applications. Its PC connectivity allows for seamless data transfer and control, providing you with comprehensive measurement capabilities.
AURSINC TinySA Ultra Spectrum Analyzer 2024
The AURSINC TinySA Ultra is a versatile spectrum analyser that boasts a wide frequency range of 100kHz to 5.3GHz, making it ideal for various measurement tasks. Its large 4.0-inch touchscreen display allows for easy navigation and viewing of results. The upgraded ESD protection enhances durability, ensuring a longer service life. Additionally, the built-in 32GB micro SD card facilitates convenient data storage and sharing, so you can keep your important measurements readily accessible.
OWON XSA805-TG Portable Spectrum Analyzer
The OWON XSA805-TG is a versatile portable spectrum analyser designed for efficient signal measurement. Its quick detection function allows you to easily capture ASK/FSK signals, making it ideal for working with car remote keys and tyre pressure modules. With high performance capabilities, including USB and LAN connectivity, it meets the needs of most users. Additionally, the EMC test function simplifies compliance testing by providing built-in templates and automatic adjustments. Finally, the waterfall chart graphic is great for tracking signal stability over time, helping you identify any intermittent issues.
LATNEX SPA-6G Spectrum Analyzer for Wireless Devices
The LATNEX SPA-6G offers an impressive wide frequency band, covering 15 MHz to 2.7 GHz and 4.85 GHz to 6.1 GHz, making it ideal for ham radio enthusiasts and audio engineers. The WiFi Analyzer Mode helps you identify WiFi issues, enabling you to optimise your router's placement for better connectivity. Its advanced functionality allows you to connect to a Windows or MAC PC, providing access to professional software with 3D and 2D elements. Additionally, the included deluxe carry case keeps your accessories organised and your device protected during transport.
Seesii TinySA Spectrum Analyzer with Signal Generator
The Seesii TinySA is a versatile handheld spectrum analyser offering a frequency range from 100kHz to 960MHz. With high-quality MF/HF/VHF and lesser quality UHF inputs, it features switchable resolution bandpass filters, allowing you to tailor your analysis for precise measurements. Its built-in calibration signal generator ensures your device remains accurate, while the ESD protection enhances durability, giving you peace of mind during use. The 2.8-inch touch screen makes navigation easy, providing you with clear visibility of your data.
RIGOL DSA815-TG Spectrum Analyzer with EMI Testing
The RIGOL DSA815-TG is a versatile spectrum analyser that operates across a frequency range of 9kHz to 1.5GHz. Its resolution bandwidth ranges from 10Hz to 1MHz, allowing you to analyse signals with precision. The average noise level display of -155dBm helps you identify weaker signals effectively. Additionally, the built-in tracking source enhances your testing capabilities, making it easier to conduct various measurements with reliable accuracy. This product is designed to simplify your testing processes and improve your diagnostic efficiency.
Portable AURSINC Tinysa Spectrum Analyzer with Touchscreen
The AURSINC Tinysa Analyzer is a versatile handheld device that serves both as a spectrum analyser and a signal generator. With its upgraded ESD protection diodes, you can enjoy enhanced stability, sensitivity, and longevity while working in various environments. The frequency range covers 0.1MHz to 960MHz, allowing you to analyse a wide spectrum of signals. You can also utilise its built-in calibration signal generator for automatic self-tests, ensuring optimal performance. Plus, the user-friendly 2.8-inch touchscreen makes operation seamless and efficient.
GQ EMF-390 3-in-1 Radiation Meter
The GQ EMF-390 Meter is a versatile device that allows you to read EMF, RF, and EF levels simultaneously on one screen. This feature helps you identify the presence of invisible radiation sources, giving you peace of mind about your environment. You will appreciate the auto-identification capability that points out potential radiation sources, making it easier to understand the risks. Additionally, the rechargeable battery adds convenience, as you can charge it using any USB port or phone charger, ensuring you’re always ready to measure radiation levels.
RFandEMF WSUB1G Handheld Spectrum Analyzer
The RFandEMF WSUB1G is a handheld spectrum analyser with a frequency range of 240MHz to 960MHz, making it ideal for various RF applications. It features a standard SMA 50-ohm connector along with a wideband Nagoya NA-773 telescopic antenna, ensuring better signal reception. With an impressive dynamic range from -115dBm to 0dBm, you can accurately detect signals across a broad spectrum. Additionally, the average noise level of -110dBm allows for clearer readings, helping you to identify and analyse signals effectively.
Frequently Asked Questions (FAQs)
1. What are spectrum Analysers used for?
A spectrum / signal analyzer measures the magnitude of an input signal versus frequency within the full frequency range of the instrument. The primary use is to measure the power of the spectrum of known and unknown signals.
2. What is spectrum analyzer and types?
There are two broad categories of spectrum analyzers: swept-tuned analyzers and real-time analyzers. Both swept-tuned analyzers and real-time analyzers have been around for many years. However, within the past decade or so, spectrum analyzers have become much more sophisticated.
3. What is the theory of spectrum analysis?
Spectral analysis or Spectrum analysis is analysis in terms of a spectrum of frequencies or related quantities such as energies, eigenvalues, etc. In specific areas it may refer to: Spectroscopy in chemistry and physics, a method of analyzing the properties of matter from their electromagnetic interactions.
During our spectrum analyser research, we found 50 spectrum analyser products and shortlisted 10 quality products. We collected and analyzed 15,486 customer reviews through our big data system to write the spectrum analysers list. We found that most customers choose spectrum analysers with an average price of £133.37.
The spectrum analysers are available for purchase. We have researched hundreds of brands and picked the top brands of spectrum analysers, including GQ, Seesii, AURSINC, OWON, LATNEX. The seller of top 1 product has received honest feedback from 26 consumers with an average rating of 4.9.

Kenneth Collin graduated from Imperial College, London, at 22. He is a UX/UI designer, a web developer, and a writer, amongst others. At age 14, Kenneth programmed his first app. Kenneth's app served as a remote control for censored devices. "When I was 8, I would pick up scraps from electronics and try to rebuild or at least fix them," Kenneth said in one of his recent articles on Home repairs for top gadgets.