collinea.nec

zip contains tool for Antenna Modelling with examples

CM Collinear array antenna 20m (matched to 300 ohms)
CE
GW 1 20 0.0 0.0  25.197 0.0 0.0  14.803  .0008
GW 2 10 0.0 0.0  25.197 0.0  5.197  25.197  .0008
GW 3 1 0.0  5.197  25.197 0.0  5.197  25.724  .0008
GW 4 10 0.0  5.197  25.724 0.0 0.0  25.724  .0008
GW 5 20 0.0 0.0  25.724 0.0 0.0  36.117  .0008
GW 6 10 0.0 0.0  14.803 0.0  5.197  14.803  .0008
GW 7 1 0.0  5.197  14.803 0.0  5.197  14.276  .0008
GW 8 10 0.0  5.197  14.276 0.0 0.0  14.276  .0008
GW 9 20 0.0 0.0  14.276 0.0 0.0  3.883  .0008
GE 1
EX 0 1  10  0  1.0 0.0
GN 2 0 0 0 13  0.005 0.0 0.0
FR 0 1 0 0 14.05 1
RP 0  181  1  1000  90 0 -1  1 
EN