On Fri, Mar 4, 2011 at 4:39 AM, Olin Lathrop wr= ote: > Manu Abraham wrote: >>> coiling doesn't affect the actual signal at all. Only common mode. >> >> It sure does. http://www.ham-radio.com/k6sti/balun.htm > > That's a balun, otherwise known as common mode choke. =A0The are explicit= ly > exploiting the fact that coiling adds inductance to the common mode path = but > not to the differential path. After writing that only, I thought that attenuation would be in the common = mode. --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .