fd20.nec

zip contains tool for Antenna Modelling with examples

CM folded dipole 20m, matches to 300 ohms
CE
GW 1 19 0.0 -5.025  19.9 0.0  5.025  19.9  .0015
GW 2 1 0.0  5.025  19.9 0.0  5.025  20.1  .0015
GW 3 19 0.0  5.025  20.1 0.0 -5.025  20.1  .0015
GW 4 1 0.0 -5.025  20.1 0.0 -5.025  19.9  .0015
GS 0 0 1.0
GE 0
EX 0 1  10  0  1.0 0.0
FR 0 1 0 0 14.05 1
RP 0  1  361  1000  90  0  1  1 
EN