Apparently a more complete link to download "Physical Design of Yagi Antennas" is this: https://www.dropbox.com/scl/fi/j7kkt63nyyh2pag0g9avj/Physical-Design-Of-Yagi-Antennas-D-B-Leeson-V2.pdf?rlkey=8hktxgv5wi2j3o880lb5ao4jk&st=2x7w21ya&dl=0 Dave, W6NL/HC8L