Research, radio frequency (RF) analysis, and signal processing. Key Features to Look For
Highly customizable interface with multi-channel analysis and clipping detection. 4. Baudline (Linux, macOS)
Most of these tools are "portable" or have simple installers.
Though originally designed for room acoustic analysis, REW has become a staple for anyone needing a high-resolution FFT analyzer. Its "Real Time Analyzer" (RTA) function is incredibly fast and detailed.
