this is an ever evolving document so here is a link to it on a server. http://www.qsl.net/kc8gpd/Economy.doc changes will be updated at that location. it opens in office xp or higher. i used a pseudonym in place of my real name in the linked document because it is publicly accessible. suggestions, changes, error corrections, and opinions are always welcome at forumsnotify @(at)@ gmail .(dot). com most of you know what to do to make it a usable email address.