3 – 30 MHz Common mode choke self-assembly kit
Frequency range: 3 – 30 MHz
Suitable up to 800 watts
Impedance: 50 OHM
There are many types of common mode chokes available, HF Kits opts for a common mode choke with bifilar windings for optimal filtering. This 3 – 30 MHz common mode choke is optimized for the higher bands (40 to 10 meters). In this case a FT240-43 toroidal core is used which makes the 3 – 30 MHz common mode current filter perform very well on the entire HF spectrum. The attenuation is therefore over 30 dB across the entire frequency spectrum. This filter is a real all-rounder for amateurs who want to work from 80 meters to 10 meters.
Click here for a construction manual of this common mode choke
This kit contains all the parts to build this bifilar common mode choke. With a handy fixing plate for the toroid, so no longer necessary for gluing. See the complete parts list and details about this filter at the bottom of the page in the product description.