I recently updated my VSWR charting tool and posted Revision 5 to this Dropbox location:
Using this new version allows you to chart both “before and after” VSWR curves to help visualize the effect of any adjustments you made to your antenna. You can print the charts for future reference.
Many higher priced antenna analyzers provide a built-in LCD graphing display. This VSWR charting tool can help you achieve the same result at a fraction of the cost. Actually, at NO cost, it’s free!
73 de Bob – KØRC in MN