FB68-31 - 3/8" ID, RFI Range 1-300 MHz, RG-6 Size Cable
Product Details
Initial Permeability (@ 10KHz): 1500
Material: MnZn
Max cable size - in/mm: .25/6.3
OD (A) - in/mm: .687/17.45
ID (B) - in/mm: .375/9.5
Length (C) - in/mm: 1.125/28.6
Z (ohms per bead - single turn 1 MHz): 27
Z (ohms per bead - single turn 5 MHz): 69
Z (ohms per bead - single turn 10 MHz): 89
Z (ohms per bead - single turn 25 MHz): 138
Z (ohms per bead - single turn 100 MHz): 225
Z ohms (per bead - single turn 250 MHz): 265
Ferrite Slip On Bead, ID = .375in/9.5mm, Mix 31, Perfect for RG-6 cable size - also RG-8X
Also make sure you connect a good RF ground to the transceiver ground post.
Note to Flex Radio users: Use snap on ferrites for firewire cable, speaker cable and mic cable, Ring ferrites for Antenna output and DC power.
For additional RFI suppression, use a feed line choke at the antenna to suppress common current on the coax feed line – see our store for feed line choke alternatives for use at the antenna.
If you use a linear amplifier we have RFI kits for linear amplifiers that help suppress RFI in your shack or in your neighbor’s house.