<div>Actually, they do different things. Twists in the cable helps prevent a signal from coupling onto one conductor more than another (differential mode noise) while the ferrite core reduces a signal from coupling onto all conductors equally (common mode noise).</div> <div> </div> <div>Bob R.</div> <div><BR><BR><B><I>Jay Marshall <lightfoot@sc.rr.com></I></B> wrote:</div> <BLOCKQUOTE class=replbq style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid">I would prefer a ferrite core from Radio Shack to a twist. I note that my<BR>Futaba SR10 has one attached a manufacture. May add a few grams.<BR><BR><BR>_______________________________________________<BR>NSRCA-discussion mailing list<BR>NSRCA-discussion@lists.nsrca.org<BR>http://lists.nsrca.org/mailman/listinfo/nsrca-discussion<BR></BLOCKQUOTE><BR>