dual2el.nec

zip contains tool for Antenna Modelling with examples

CM Dual Band 2el (20m, 15m)
CE
SY L21=3.175	'3.26
SY L14=4.356	'4.19
GW 1 19 0.0  L21  20.0 0.0 -L21  20.0  .008
GW 2 3 0.0  L21  20.0 0.0  L14  20.0  .008
GW 3 3 0.0 -L21  20.0 0.0 -L14  20.0  .008
SY R21=3.42		'3.49
SY R14=4.342	'4.435
GW 4 20 -2.7 R21  20.0 -2.7 -R21  20.0  .008
GW 5 3 -2.7  R21  20.0 -2.7  R14  20.0  .008
GW 6 3 -2.7 -R21  20.0 -2.7 -R14  20.0  .008
GE 1
EX 0 1  10  0  1.0 0.0
SY L=2.86uH
SY C=20pF
SY Q=100
LD 6 2  1  1 Q L C
LD 6 3  1  1 Q L C
LD 6 5  1  1 Q L C
LD 6 6  1  1 Q L C

GN 2 0 0 0 13  0.005
'FR 0 1 0 0 14.05
FR 0 1 0 0 21.05
EN