On Mon,10/12/2015 5:45 AM, Filipe Lopes wrote: > I am about to add a common mode choke to isolate the antenna from its > feedline to each of my beverages and I only have FT240-61 ferrites. #61 is a terrible material for use as a common mode choke below 500 MHz. Try to find #31 or #43, and wind LOTS of turns. 73, Jim K9YC