This RFI CHOKE is made of five (5) sleeve beads featuring #31 Ferrite Mix which is the best for this purpose. The #31 Ferrite Mix Core covers 1 MHz to 300MHz and will prevent, greatly reduces or totally eliminates the RFI carried by the coax cable.
It can be installed either at the antenna feed point or right behind the antenna tuner.
The Choke is composed of the following:
Power Limit: 300W SSB
Everything is protected in black 3:1 Polyolefin Heat Shrink for maximum protection.