helix.nec

zip contains tool for Antenna Modelling with examples

CM Helix over perfect ground
CM Illustrates use of GH (helix) input
CM Illustrates use of GM (move wires) input
CE
GH 1 48 4.8 9.6 1.7 1.7 1.7 1.7 .1
GM 0 0 0. 0. 0. 0. 0. .4 0
GS 0 0 .0107
GE 1
GN 1
FR 0 1 0 0 1600. 0.
EX 0 1 1 00 1. 0
EN