semirhomb.nec

zip contains tool for Antenna Modelling with examples

CM Semirhomb 3.5...28 MHz by EU1TT
CE
GW 1 45 0.0 0.0 0.0  75.0 0.0  45.0  .0008
'GW 2 45  75.0 0.0 45.0  150.0 0.0  .1  .0008
'GW 3 1  150.0 0.0  0.0  150.0 0.0  .1  .0008
GW 2 45  75.0 0.0  45.0  150.0 0.0  0  .0008
GE 1
LD 4 2  45  45  400  0 
GN 3 0 0 0 13  0.005
EX 0 1  1  0  1.0 0.0
FR 0 1 0 0 3.8 1
EN