The 3146 log periodic antenna is a linearly polarised broadband antenna and designed to be used for EMC Emissions and Immunity Testing. The broadband antenna is ideally suited to swept measurements. The attributes of the log periodic are well known and it has seen service in commercial testing for thirty years or so. This particular model is lightweight and compact and once calibrated can be relied upon to maintain its performance. The elements are not so prone to bending as with the larger biconilogs. Due to their frequency coverage and design they are naturally directional.