View Full Version : OT question
Tanner Stauss
07-01-2009, 02:17 PM
On some firewire cables and other types of cables, there is sometimes a large magnet that the cable wraps around at the end or both ends. What are these magnets for?
David Rasberry
07-01-2009, 02:21 PM
It is an RF choke to reduce or eliminate noise emissions from the cable.
Andrew Walker
07-01-2009, 02:23 PM
Its called Ferrite and I believe its to better focus the signal.
Andrew Walker
07-01-2009, 02:24 PM
It is an RF choke to reduce or eliminate noise emissions from the cable.
Just looked it up and David is right as to what it does.
Cail Young
07-01-2009, 03:35 PM
It is an RF choke to reduce or eliminate noise emissions from the cable.
Or, more importantly, noise interference to the signal in the cable.