... wife, Gina, for her patience, understanding, and support and for the hours she spent reading and editing the book.Writing the CWNA study guide has been a nine-month adventure that neither of us ... kenruppel@gmail.com ) for allowing us to include the video “Beam Patterns and Polarization of Directional Antennas” on the CD-ROM, and thanks to Andrew Potter for making himself available for our photography ... Szilagyi, not only for creating the EMANIM software pro-gram, but also for all the extra assistance he provided by working with us to create a custom-ized version of the program for the CD-ROM.We...