The Society of Broadcast Engineers

The Association for Broadcast and Multimedia Technology Professionals

MA3: All-Digital AM – Things to Know

Available on demand
(Original air date: January 28, 2021)

With the release of the Report and Order by the FCC on October 27, 2020, authorizing stations to use MA3 all-digital AM on their stations, several common questions – and more than a few misunderstandings – have arisen. In this session, we’ll discuss the research done to arrive at this point, the development history of HD Radio on AM and what the actual requirements will be going forward. We’ll also look at some of the misunderstandings frequently encountered (for example, analog is going away… no, whether or not a station decides to run MA3 is a voluntary choice on the part of the station). Your presenter was involved in the first all-digital field tests done by the NAB and has installed a couple dozen AM HD Radio systems, as well as supporting many others, so there will be first-hand experience provided in the course of this session.

Your Instructor

Jeff Welton, CBRE, Nautel

Jeff WeltonJeff Welton has worked with Nautel for more than 30 years. He is currently the Nautel sales manager for U.S. Central Region. He spent more than 16 years as a Nautel customer service technician and was involved in the 2015 MA3 field tests with NAB Labs.  In this role he performed hundreds of transmitter site visits and field calls. A regular speaker and contributor on broadcast engineering, Jeff has been recognized with the following awards: the 2020 NAB Radio Engineering Achievement Award; 2019 APRE Engineering Achievement Award; and 2018 SBE Educator of the Year Award. He’s also contributed to the most recent edition of the NAB Engineering Handbook and performs several presentations a year in the area of broadcast engineering.

SBE Recertification Credit

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

Course Enrollment

To register for the course, click on the link below. You may register using VISA, MasterCard or American Express.

SBE Member Price:      $62

MemberPlus Members FREE

Non-Member Price:      $92

Registration link


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

More information about registering using the SBE MemberPlus benefit

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