This presentation describes a system of three half-wave sloping dipoles  which allow CW and SSB operation with no additional tuning.  RTTY operation is not guaranteed.   The system is based on a concept by W6NL and a technical paper by W4RNL described on the Internet at http://www.cebik.com/trans/wb.html The system was designed and constructed at N3BB in January and February, 2006.  While this presentation describes the three-sloper system, it is valid for a single half wave dipole antenna.