Knarf wrote:

PS should I have used an actual helix? Very tedious to structure with code,
although have done it in other models. Noticed that the current in and out
of the coil is vastly different when compared with using the lumped element
model.

Most of the available implementations of NEC-2 include the ability to
generate a helix. Look for information on a 'GH' command.

Roy Lewallen, W7EL