EMI/RFI Filtering: Tempest

The RFI Specialty Components of ULTRA EMS includes lowpass power TEMPEST filters that are deployed in defense and in private installations to prevent power lines and other outlets from acting as transmitters of electronic data. With a TEMPEST filter, sensitive information will not become conducted EMI signals leaking from PCs, servers, telephones, etc. These filters are recommended for use in shielded rooms, secure communication areas, as well as in shipboard electronic installations. Pictured is one of many possible TEMPEST filter designs.