BSA Radio Merit Badge help files are a great place to find what you need! Look here: http://k2gw.tripod.com/radiomeritbadgeday/id21.html go down to the K2BSA posters http://k2gw.tripod.com/sitebuildercontent/sitebuilderfiles/k2bsaradiombposte rs.ppt#276,4,Slide 4 73, Steve