For some 50 years, Rick Hartley has been an engineer and designer of printed circuit boards, primarily with BF Goodrich and L3 Avionics. He is now principal of RHartley Enterprises, where he consults with leading companies to resolve noise, signal integrity and EMI problems. Perhaps the most popular speaker in the history of PCB West, Rick recently has been conducting 2-day workshops on controlling signal noise. He talks EMI ("it's about fields") and his advice for designers with UPMG's Mike Buetow.