Cecil Moore wrote in message Where is the beef that this claimed
variation of current across a coil causes drastic modeling or coil
placement calculation errors? Sorry, I just don't see it. What am I
missing here? MK

Well, for instance, EZNEC cannot directly model the phased array
in Kraus' book which requires the coils to perform a 180 degree
phase shift in the current. Don't you think that is useful information?

I can model it just fine using two sources. I've done it many times.
You can set the phase shift to anything you want. My question pertains
to the claimed or implied drastic modeling error we are supposed to be
seeing due to current taper in a mobile bugcatcher coil. Thats what
all this revolves around. Myself, I don't think any error would be
enough to worry about. Do you disagree? MK