There are three software packages that you will need for the transmission line project. All are free.  They are TLDetails , 4nec2 and mini Ring core calculator. TLDetails is the main application that you will use. It is a general purpose transmission line calculator. 4nec2 is a powerful antenna analyzer that contains a good set of utilities.  We use one of the utilities for designing an antenna tuner. The core calculator is used to calculate the number of turns to wind on a powdered iron toroid for your antenna tuner. Download the programs onto a PC laptop computer if you have one. If not, you can use one of several laptops that will be available during the project sessions.
Session 1 Power Point Download
Below are three screen shots of these packages. You will learn how to use these during the project.
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4nec2 Matching Utility