Thanks, kept seeing posts about NEC-4, but no explanation. At least answers
my question! --Jim NN7K


"Roy sent:
There are two major differences between EZNEC and EZNEC/4. The first is
that EZNEC/4 is one of the two EZNEC pro programs, the other being
EZNEC-M. These programs are intended for professional use (although some
amateurs have bought them) and cost several times as much as the
standard version of EZNEC. The added features of the pro versions are
10,000 segment capability, the ability to read and write description
files in NEC format, ground wave analysis, automated rectangular wire
grid creation, and a way to do advanced replication, rotation, and
translation of groups of wires. EZNEC-M is identical to EZNEC/4 except
that EZNEC-M only has an NEC-2 calculating engine,