This chart is one of a number of similar charts portraying the VSWR in a 50 Ohm system at the end of a 450 Ohm feed line at selected ham frequencies for various lengths of feed line. Data is for a horizontal dipole at 40 feet above average soil. Other plots are available for numerous Dipole lengths between 90 ft and 180 ft. The resolution of the chart above is compromised in this site in the interest of file size and download time. High resolution charts are available on request via E-Mail. Also available in MicroSoft EXCEL format is source info for many similar dipoles and matching lines and various environments. 

Ed Clegg, w8loy in Lancaster, OH 43130.     e-mail to: [email protected]  or [email protected]

HOME