[TowerTalk] Suppression

[David Gallatin]

Hello group,I have to admit I have read any number of tome's on suppression, chokes, etc. I still don't comprehend it well. So a question. When we use ferrite cores and beads on a wire are we seeking to keep what ever the wire is going to from sending trash up the wire or are we keeping outside trash from using the wire to ingress the device ?  If I put #31 cores on the wire WHY am I using that material vs another?  73, David