Our BCI filter kit is designed for radio amateurs who need to suppress unwanted signals from nearby broadcasting stations (or lower frequency emissions under top band).  A video of the filter in operation can be found here.
 
Using the popular “Popcorn” BCI design, this BCI filter is assembled and will support 100w peak SSB and 25w Data/CW.
 
This filter is an absolute must for must for Xiegu G90 or where AM stations are an issue for your tranceiver.