Freeware for Amateur Radio calculations.
 

FREEWA From the HPARC web site.
The application will assist in:
Coil Designs
Matching Networks
Antennas
Dipole
Marconi
EH
Inverted V
Verticals
Loaded Verticals
RC Coupling Circuits
RCL Resonant Circuits
Power Supplies
Toroid Transformers
Wire Tables
VSWR
http://www.controlledpwr.com/ad8m/ad8m.exe
..
Boycott anything made in France & Germany & vacation somewhere else.