OCFD Modeling Software

DL1VU/DG0KW OCFD Modeling Software

OCFD Modeling Software, by DL1VU & DG0KW

In his Book published in 2000 by Theuberger Verlag GmbH, entitled Windom- und Stromsummen Antennen (Eng. "Windom and Current Sums Antennas"), Karl Hille, DL1VU (SK) described his intensive study of the single-wire fed and 2-wire fed Windom antenna. He then suggested a different design goal for the 2-wire fed Windom (a.k.a. OCFD).

In this book, DL1VU published a dipole modelling program, written in Basic, that calculates current sums based on several user-definable parameters. Unfortunately the command lines had to be entered manually. Thus I never tried the program.

In 2010, DG0KW wrote a Windows-based program, based on DL1VU's Basic program. This program is a simple download and installation; then you're good to go. Data (parameters) is entered via a mask, and is very simple to use.

This program can calculate all dimensions for any half-wave antenna, regardless of the position of the feedpoint (i.e., Center-Fed, Off-Center-Fed, or End-Fed). It allows defining the specifics of the wire and dielectric of its insulation (if any).

In addition, it will also calculate the dimensions for an auxiliary sleeve dipole.

IMPORTANT: License Agreement:

The software product "Stromsummen-Antennen-Berechnung" ("Current Sums - Antennas - Calculation") associated with this license is freeware for amateur radio purposes and is protected by copyright and other international treaties on intellectual property.

A commercial use is allowed only with the consent of the author (DG0KW).

By installing, copying or otherwise using the software product, you agree to be bound by the terms of this license agreement.