Tektronix introduces a series of real-time spectrum analyzers that provide a complete measurement package for engineers developing RF technologies, ranging from RFID to radar applications. Real-time spectrum analysis provides the ability to trigger, capture, and analyze time-varying RF signals. The series includes the RSA2200A and RSA3300A. these instruments address time varying and transient RF signals by triggering on events that swept spectrum and vector signal analyzers fail to see, capturing and storing a record of signal activity and enabling analysis and troubleshooting with time correlated multi-domain visual displays. The frequency, time and modulation domains are all visible in time-correlated displays, while the spectrogram itself summaries the long-term view, enabling a three-dimensional look at the time-varying signal behavior.