Generally, spectrum analyzers are categorized into two types: the swept-tuned spectrum analyzer and the FFT spectrum analyzer. Furthermore, other spectral components of a signal, such as dominant frequency, power, distortion, harmonics, and bandwidth, can be observed. It’s effective in providing insights into the RF performance of circuits’ modules or systems because, with the signal information obtained from the analyzer, the type of signals present can be identified, and their frequencies, frequency levels, and amplitude can be measured. The output is displayed in the frequency domain. What is an RF Spectrum Analyzer?Īn RF Spectrum Analyzer is a widely used test instrument that measures the power of the spectrum of the input signal by measuring its amplitude, displayed on the vertical axis (y-axis), versus its frequency, displayed on the horizontal axis (x-axis). There are spectrum analyzers for different types of signals, but this article will focus mainly on Radio Frequency (RF) Spectrum Analyzers. Due to this, test equipment like Spectrum Analyzers was invented. In the field of electronics, measuring these signals is necessary but also challenging because of their nonphysical nature. The most common type we hear about are the electrical signals, but there are also other types such as optical and audio signals. Signals are all around us, but we are unaware of their presence because they are invisible and intangible.
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