A bilogical antenna, often referred to as a BiLog, is a fusion of biconical and log-periodic antennas, offering higher bandwidth with a lower starting frequency, allowing operators to use fewer antennas to measure RF signals. The single sweep capability of most bilogical antennas enhances accuracy and enables testing to be completed with just one antenna in some applications. Bilogical antennas are used for both immunity and emissions EMC testing and can fulfill ANSI, FCC, and EN requirements.