I'll also recommend the NorCal 40 with Rutldeges's book: http://www.fix.net/~jparker/wilderness/nc40a.htm http://www.fix.net/~jparker/wilderness/nc40a.htm The

I'll also recommend the NorCal 40 with Rutldeges's book: http://www.fix.net/~jparker/wilderness/nc40a.htm http://www.fix.net/~jparker/wilderness/nc40a.htm The book takes you through the basic theory, backed up with experimentation while building the kit. You just need a a scope and function generator, and of course a soldering iron. KD4HSO