Antenna Modeling

Presenter:  Lee Johnson N4WYE

Lee was licensed in 1957 as KH6DAK, finished college in electrical engineering, and remained in communications technology/systems for his entire career.  He is one of the founding members of the Raleigh Amateur Radio Society and built the original 04/64 W4DW repeater in the early 1970s.  He is also a life member of the ARRL and IEEE.

Forum Description:  Lee will introduce antenna modeling and techniques he has used over the last four years to design, analyze, and optimize his small antenna farm on a one-half-acre lot.  Lee started with a 40M dipole in his attic, then ventured outside with an 80M Off-Center Fed (OCF) Dipole.  Next came the End Fed Half Wave dipoles, both vertical and horizontal versions.  Most recently, he has been operating with both 80 and 40-meter horizontal Loops.  The modeling program, MMANA-GAL, allowed him to get the most performance out of his lot and HOA situation.


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