The Panoramic Adapter EZP in conjunction with a suitable receiver — such as the ESM 2 and ESU 2 of Rohde & Schwarz - permits spectral display within a particular frequency range. Depending on the selected display width and resolution, the screen display supplies information on the band occupancy, the operating channels as well as on level, modulation and frequency spacing of the individual signals. A superimposed marker below the signal line indicates the tuning frequency of the receiver. Tuning to a desired signal frequency is thus considerably facilitated and accelerated.