GT Electronic manufactures Common Mode Filter Choke. GT Electronic offers wound components i.E. Coils, Line Filters, Chowk coils, Telecom Ferrite transformers, UPS Ferrite transformers, Iron dust & Drum coil, Bit coil and Transformers. The Common Mode Filter Chokes are used to provide the means of reducing or eliminating common-mode noise from an antenna feed line. The common mode chokes assist in increasing the received signal quality. Apart from this, common-mode chokes are also immensely useful to provide an alternative earthing point for an active antenna, if the antenna itself cannot be grounded owing to its location, or its ground connection is not adequate.