Ferrite core for noise and asymmetry suppression for cables up to 5.6 mm in diameter RG58, RF5.
Dimensions length 20 mm outside diameter 12 m hole diameter 5.6 mm
These easy-to-install ferrite cores are designed to reduce electromagnetic interference caused by their induction or radiation on the wire.
Impedance of one turn 220 OHM /100Mhz