I'm confused... - Edit 1
Before modification by fionwe1987 at 05/01/2011 06:15:26 PM
no reason to assume it requires active Channeling or to assume that it doesn't go cool when someone is Channeling nearby. Mat can feel it when women are channeling nearby even when weaves aren't directed at him.
KOD
A Cold Medalion
Joline’s Warders, Blaeric and Fen were nowhere to be seen, so there was no need to talk his way past them to get inside, but as he approached the dirt-streaked steps at the back of the wagon, the foxhead medallion hanging beneath his shirt went icy cold against his chest, then colder still. For a moment, he froze like a statue. Those fool women were channeling in there! Coming to himself, he pounded up the steps and banged the door open.
What's your point? I only quotes that Alanna scene from tPoD to show that Cadsuane has some ornament that goes cold just like Mat's medallion, and it is reasonable to assume this is the one that breaks weaves.
Now, since Elayne has worked extensively with Mat's medallion and found no way to use it to disrupt weaves at a distance, it is a reasonable conclusion that the same is true for the golden crescents Cadsuane wears.