vert53.nec

zip contains tool for Antenna Modelling with examples

CM Long vertica with LC matchl 
CE
GW 1 1 0.0 0.0 0.0 0.0 0.0  .05  .001
GW 2 60 0.0 0.0  .05 0.0 0.0  11.31  .001
GW 3 1 0.0 0.0  .05 0.0  .05  .05  .001
GW 4 1 0.0  .05  .05 0.0  .05 0.0  .001
GS 0 0 1.0
GE 1
EX 0 4  1  0  1.0 0.0
sy cap=27.7pF
LD 0 3  1  1 0 0 27.7e-12
LD 0 1  1  1 1.44 3.27e-6 0
GN 3 0 0 0 13  0.005
FR 0 1 0 0 14.05 1
RP 0  181  1  1000  90 0 -1  1 
EN