Features: DC to 8GHz 40 MHz 500 kHz 500 Hz Tektronix Exclusive Frequency Mask Trigger Makes Easy Event-based Capture of Transient RF Signals by Triggering on Any Change in the Frequency Domain  All Input Signals Up To 36 M Hz 1 Spans Are Seamlessly Captured into Memory Gain a Unique Understanding of Time-varying RF Signals System Integration of WLAN, 3G and Other RF Systems Radar and Pulsed RF Signal Characterization RFID System Development and Troubleshooting Characterization of Interfering or Unknown Signals in Spectrum Monitoring and Surveillance Troubleshooting RF Components, Modules or Systems Getting Answers to Elusive EMI Diagnostic Problems General Purpose Phase Noise and Jitter Signal Analysis  The RSA3408A Real-Time Spectrum Analyzer (RTSA) captures a continuous time record of changing RF events and enables time correlated analysis in the Frequency, Time and Modulation domains. You get the functionality of a vector signal analyzer, a wide band spectrum analyzer, plus the unique trigger-capture-analyze capability of RTSA – in one, transportable package.