In summary, the Spectrum Analyzer software for Teledyne LeCroy’s HDO oscilloscopes brings a number of advantages to the task of frequency-domain measurements. It provides a familiar interface to spectrum analyzer users with the flexibility to view signals in the time domain. Automatic detection and labeling of peaks couples with the ability to place 20 markers simplifies RF measurements. Interactive tables offer fast and easy spectrum navigation, while a spectrogram display shows how the spectrum is changing over time.