hb9cvw.nec

zip contains tool for Antenna Modelling with examples

CM HB9CV 20m (gamma-match 50 Ohm)
CE
SY len=0.69	
GW 1 10 0.0 -4.945  20.0 0.0 0.0  20.0  .01
GW 2 8 0.0  4.945  20.0 0.0  len  20.0  .01
GW 3 2 0.0  len  20.0 0.0 0.0  20.0  .01
GW 4 9 -2.65 -5.31  20.0 -2.65 -len  20.0  .01
GW 5 2 -2.65 -len  20.0 -2.65 0.0  20.0  .01
GW 6 10 -2.65  5.31  20.0 -2.65 0.0  20.0  .01
GW 7 5 -2.65 0.0  20.0 0.0 0.0  20.0  .002
GW 8 1 0.0  len  20.0 -.15  len  20.0  .007
GW 9 2 -.15  len  20.0 -.15  .1  20.0  .007

GW 10	3 -0.15   0.1 20     -1.28   0.1 20.017 2e-3
GW 11	1 -1.28   0.1 20.017 -1.707 -0.1 20.017 2e-3
GW 12	2 -1.707 -0.1 20.017 -2.5   -0.1 20     2e-3

GW 13 2 -2.5 -.1  20.0 -2.5 -len  20.0  .007
GW 14 1 -2.5 -len  20.0 -2.65 -len  20.0  .007
GW 15 1 0.0 0.0  20.0 -.15  .1  20.0  .007
GE 0
EX 0 15  1  0  1.0 0.0
SY cap=145pF
LD 0 15  1  1 0 0 cap
FR 0 1 0 0 14.05 1
EN