October 8, 2026 | 2 p.m. ET
Multi-element directional antennas are used to protect co- and adjacent-channel spectrum neighbors, direct coverage into desired areas or away from undesired areas, or a combination of those objectives. Many factors, both internal and external, can cause a directional array to malfunction, producing excessive radiation in null areas and impacting the VSWR bandwidth of the system. Keeping a directional array within FCC-defined limits requires regular maintenance and periodic minor adjustments. In this webinar, we will take a top-to-bottom look at what is required to keep an AM directional facility legal and performing well, and we will provide some troubleshooting tips and techniques to help engineers track down and fix problems with dispatch.
Instructor
Cris Alexander, CPBE, AMD, DRB
Cris Alexander, CPBE, AMD, DRB began his broadcast engineering career in 1976, working in AM, FM and television before settling in as director of engineering at Crawford Broadcasting Company in 1984 where he has been ever since, overseeing the technical operations of Crawford’s group of FM and AM stations. He has designed, built and constructed many AM facilities, both directional and non-directional. In addition to his work at Crawford, he is managing partner of Au Contraire Software, Ltd., which produces AM and FM allocations and system design software. His moment method software is used by many in the industry as well as the FCC.
SBE Recertification Credit
The completion of a webinar from Webinars by SBE qualifies for 1 SBE recertification credit, identified under Category I of the Recertification Schedule for SBE Certifications.
Registration and Pricing
SBE Members: $90
MemberPlus Members: Free
Non-Members: $120
Questions?
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 upgrade or join using the SBE MemberPlus membership option. You get access to all archived SBE webinars and any new live webinars SBE presents, all for no extra cost.
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.
