The Society of Broadcast Engineers

The Association for Broadcast and Multimedia Technology Professionals

Basic RF for IT – Module 4

Originally streamed September 21, 2023

Basic RF for IT is designed for newer engineers who come from an IT or non-technical background and need some training on the theory and components involved in generating radio frequency signals, as well as the principals involved with respect to maintaining and optimizing operation. While not intended to be an in-depth electronics education, this course provides familiarization with the theory and math involved in RF generation, as well as practical applications of that theory. Each course will consist of four modules and can be viewed individually or taken sequentially. Modules will be discussion-based, with theory and references provided throughout.

Basic RF for IT Series Module 4 discusses amplifiers and basic troubleshooting. None of the previous sessions matter if we can’t make a little signal into a big signal, and fix it when it doesn’t work as planned. This session looks at various amplifier designs and discuss troubleshooting techniques for each – how you approach a Doherty tube amp will be different than how you troubleshoot a current day solid-state amplifier. There will be some discussion on amplifier classes, pros and cons of each and how to use measurements to determine if things are operating as they should.

The other three Basic RF for IT Series Modules are available on demand.


Your Instructors

Jeff WeltonJeff Welton, CPBE, Nautel

Jeff Welton took his training in the Radio College of Canada (RCC) Electronics Engineering Technologist program and a recipient of the NAB Engineering Award for Radio. Jeff has performed component-level repair, field installation and service, technical support and quality assurance roles with various companies and has been with Nautel for more than 30 years, the first 17 of which were spent in field service and technical support positions, as well as assisting engineering with design review of new products and improvement of existing systems. Since moving to sales in 2007, Jeff keeps finding ways to get his hands dirty and can frequently be found assisting in the install of a transmitter he’s sold, as well as performing site inspections and the occasional repair.

Gary CavellGary Cavell, Cavell Mertz & Associates, Inc.

A 40-plus year broadcast veteran, Gary Cavell is a recipient of the NAB Engineering Achievement Award for Radio, and the IEEE Broadcast Technology Society’s Award for Outstanding Broadcast Engineering.  He served as editor-in-chief for the 11th edition of the NAB Engineering Handbook and has published many articles on practical aspects of broadcasting over the years.

Gary has been a lecturer and faculty member of the NAB Educational Foundation’s Broadcast Leadership Training program, has been a lecturer for the NAB Broadcast Technology and Engineering Internship Program, the Voice of America’s/IBB US Technical Training Institute, and was a developer and co-presenter of RF Bootcamp sessions during several NAB conventions.

Gary is a member of several professional organizations including the SBE and is Life Member of both SMPTE and IEEE. He is a past president of the IEEE Broadcast Technology Society.  Gary is a Certified Master Thermographer, holds a Drone Aircraft Pilot Certificate, an amateur radio Extra Class operator’s license, an FCC General Radiotelephone Operator’s License, and is an instrument-rated private pilot.

Geoff MendenhallGeoff Mendenhall, Mendenhall Engineering

Geoff Mendenhall has spent most of his 50-year career in the broadcast industry.  He has always had a passion for radio broadcasting where his many contributions have made him one of the industry’s best-known experts on FM transmission.

Authoring more than 50 technical papers, including the chapter on FM/HD Radio transmitters in the NAB Engineering Handbook, Geoff was recognized with the 2010 NAB Best Paper Award and the 2011 Matti S. Siukola memorial award for best IEEE Broadcast Symposium technical paper.

Geoff received the 1999 National Association of Broadcasters Radio Engineering Achievement Award recognizing his many innovations and contributions to the broadcast industry and he was named an Engineering Fellow by Harris Corporation in 2008.  Geoff retired from Harris Broadcast Communications in 2013 to form Mendenhall Engineering, LLC, an RF engineering consulting firm.

SBE Recertification Credit

The completion of a webinar from Webinars by SBE qualifies for 1 credit, identified under Category I of the Recertification Schedule for SBE Certifications.

Registration and Pricing

This webinar will be approximately 90 minutes long. 

SBE Members: $62

MemberPlus Members FREE

Non-Members: $92

Registration link


If you have questions regarding this course, contact Cathy Orosz via email or by phone at 317-846-9000.

More information about registering using the SBE MemberPlus benefit

All SBE webinars are included at no additional cost for members who renew or join using the $175 SBE Member Plus membership option.  Through this option you get access to all SBE webinars for no extra cost. Members can renew and newcomers may join online at the SBE website using the SBE MemberPlus option.

Access to the SBE webinars through the SBE MemberPlus program is limited to the MemberPlus-purchaser only. You are not permitted to distribute, sell, copy, share, project or otherwise make the webinars available to any other individual or group without express written permission by the SBE.

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