The Real-time Spectrum Analyzer (RSA) is an instrument that can discover elusive effects in RF signals, trigger on those effects, seamlessly capture them into memory, and analyze them in the frequency, time, modulation, statistical and code domains. A spectrum 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. Most spectrum analyzers automate certain power versus frequency type measurements, like AM modulation depth or. This application note explains the fundamentals of swept-tuned, superheterodyne spectrum analyzers and discusses the latest advances in spectrum analyzer capabilities. At the most basic level, a spectrum analyzer can be described as a frequency-selective, peak-responding voltmeter calibrated to. A spectrum analyzer is a powerful tool used in electronics and telecommunications. You can see exactly which frequencies are in a signal and how strong they are.
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