National Association of Broadcasters Engineering Handbook (PDF)

Garrison C. Cavell has, over a 40-year career, been on the air, worked in radio and television station engineering management, was a radio station General Manager, a radio station owner, and a serial entrepreneur. His latest and most enduring venture was to found the firm that is now Cavell Mertz & Associates, Inc. where he remains a principal. He has a love for working with RF systems, and AM antenna arrays in particular. He has designed, built and certified countless station antenna systems over the years.

Tom Osenkowsky began his career broadcasting as a news reporter while attending high school. He attended Central Connecticut State College and worked as a Final Quality Assurance Technician for Automation Industries in Danbury, CT. Tom is a Senior Member of the IEEE, iNARTE, and SBE. He holds Certified Professional Broadcast Engineer life certification from the SBE and a Master Engineer with RF Radiating Endorsement from iNARTE. Tom has held positions at various radio stations as announcer, Chief Engineer, Operations Manager and General Manager. He has served as an engineering consultant in the United States and Caribbean Islands, written engineering themed computer programs and made presentations at the IEEE Broadcast Technology Society (BTS) annual meeting, Broadcast Engineering Conference at the NAB Annual Convention and SBE Annual Convention.

David Layer is senior director, advanced engineering in NAB's Technology department. David has been with NAB since 1995 and has been very active in the radio technology and standards setting area. He is the primary NAB staff person on NAB's radio technology committee and the National Radio Systems Committee (NRSC). Outside of NAB, David is a senior member of the IEEE and is active in the IEEE Broadcast Technology Society (BTS), where he serves on the administrative committee, is a distinguished lecturer, and has been the chair or co-chair of numerous annual IEEE