The Aaronia BicoLog 20100 EX Biconical Radial Isotropic Antenna, 20MHz - 1GHz, Active Version offers much higher gain, especially in the low frequency range. This model meets even the most restrictive EMC standards like EN55011, EN55022 etc. Every BicoLOG EMC Test Antenna goes through rigorous testing in our laboratories and is equipped with a high quality rubber paint which offers protection against mechanical damage and environmental influence.