What’s New in the 19th Edition of The ARRL Antenna Book? By R. Dean Straw, N6BV Senior Assistant Technical Editor, ARRL Dayton, May 2001 Major Changes Nine chapters were greatly upgraded or even completely rewritten -- About 40% of the book changed materially. The material in the book + augmented software/data is available on CD-ROM also. I received tremendous help from the following contributors: Rudy Severns, N6LF -- Chap 8, Multielement Arrays Frank Witt, AI1H -- Chap 9, Broadband Antenna Matching LB Cebik, W4RNL -- Chap 10, LPDAs Kurt Andress, K7NV -- Chap 22, Antenna Supports Major Changes Here are some examples of the kind of changes you’ll find in the paper book. You’ll find lots of comparisons of antennas thanks to the latest computer modeling software. Chap 5, Loops Comparing 16.2” wide loops at 14.2 MHz to dipole and ground plane. Chap 5, Loops A neat high-voltage “trombone” variable capacitor, made of 3/4” and 1/2” copper pipes and Teflon tape insulation. Chap 7, Multiband Antennas A really big Discone at W8NWF! Chap 8, Multielement Arrays Dipole compared to 2-, 3- and 4-element Collinear arrays Chap 8, Multielement Arrays Patterns for various Bruce arrays Chap 9, Broadband Antenna Matching Transmission Line Resonator Chap 10, LPDAs Correcting performance problems with a stub