Electromagnetic Spectrum Analysis


Radiofrequency Sweep or Scanning



"Radio frequency sweep or "Frequency sweep" or "RF sweep" refer to scanning a radio frequency band for detecting signals being transmitted there. This is implemented using a radio receiver having a tunable receiving frequency. As the frequency of the receiver is changed to scan (sweep) a desired frequency band, a display indicates the power of the signals received at each frequency."



Video demonstrating sweep of the FM band





Analyse du spectre électromagnétique 


Analyse par balayage (scanning) fréquentiel (pour exploration spectrale)

Il faut noter que la vitesse de balayage influence la résolution spectrale.


Analyseur de champ électromagnétique


Un analyseur de champ électromagnétique est un instrument de mesure regroupant deux capteurs :