The SFA-S Selective Field Analyzer Set combines an active broadband isotropic antenna with a portable USB-powered spectrum analyzer. The OFA-S Omnifield Antenna® has a frequency response independent of antenna or electric field orientation and a broad dynamic range. The SA-S Spectrum Analyzer displays the frequencies and field strength of selected signals and automatically performs channel power measurements, allowing results to be viewed and stored on a PC. A standard SFA-S set also includes the PU-5S Power Unit, a custom ferrite-beaded RF cable, an AC/DC charger, a table tripod, and a storage case. EMC Test Design