Lol EMF (BTW I forgot to mention a long time ago, but did you know that your acronym actually means electromotive force? <img src="/ubbthreads/images/graemlins/laugh.gif" alt="" /> ).
When I was a teen studying for my HAM license, one of the instructors at the HAM club kept calling it "ElectroMODEM force". <img src="/ubbthreads/images/graemlins/laugh.gif" alt="" />