> I vote that Olin knows what he is talking about on this. Apart, perhaps, from the need for a spilling chucker and or brain resetting :-), as per recent comments on what we can and can't see in what we write. >> It is. =A0That's exactly the point of a balun. =A0It adds impedence to t= he >> unwanted common mode signal while adding as little as possible to the re= al >> differential mode signal. R --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .