The Story of the Broadcast Cart Machine is fascinating, especially to those of us who used them on-air, or installed and repaired them as engineers. Andy Rector, who was heavily involved in the business of broadcast cart machines, joins us for Part 2 of our exploration into this history. We’ll go through the 1970s and 1980s, as new broadcast cart machines were developed and deployed. We’ll follow this story arc right up to the late 1990s, when Andy says was really the end of that cart machine era.

Most of us in radio engineering have worked with broadcast cart machines. While it’s been a good 25 or 30 years since we’ve had them in our studios, we’ll never forget the pleasure - and occasional pain - of using them and maintaining them. But how did cart machines come to be? Were they always like the ones we grew up with in the 70s and 80s? Or did the development come with fits and starts? Andy Rector worked with broadcast carts nearly from the very beginning of their existence. He’s been interviewed many times and provided historical presentations to SBE groups, AES sections, and others. We’re delighted to have Andy Rector join us on this TWiRT episode to look at the early days of broadcast cart machines and the early technologies employed.

Young broadcast engineers are few and far between, but Cameron Lasley is making a big difference for broadcasters in Kentucky. Cam’s primary role is with wireless broadband technologies; he’s the owner of a Wireless Internet Service Provider (WISP) in Kentucky. On a future TWiRT episode we’ll discover Cam’s broadcast engineering experiences, but on this show we’re finding out about the WiFi technologies that power IP radio links. These are links that broadcasters - as well as WISPs - use every day. We’ll gain understanding of link budgets and margins, as well as best practices for modulation schemes and frequency band selection for IP radio links. There’s a lot of great information for us broadcast engineers to absorb on this episode of TWiRT.

Today’s TWiRT webcast is a double-header - two guests on very different yet important topics. First up is Robbie Hulett, owner of Tower Maintenance Corp. Robbie shares his company’s work and achievements on social media, keeping broadcasters abreast of current trends in the tower maintenance field. Perhaps some of TMC’s work will prompt others to check on and maintain their vertical structures with the attention they deserve. And Bayard “Bud” Walters - a Nashville-based radio group owner - gives us his candid thoughts about the FCC’s “Delete, Delete, Delete” regulatory reform program. The NAB has filed lengthy comments and suggestions, and Bud, owner of Cromwell Broadcasting, has a few thoughts of his own to share. See if you agree or disagree!

Congratulations to Paul Shulins, co-owner of Over The Air RF Consulting. He is the recipient of the 2025 NAB Radio Engineering Achievement Award, which was presented at the NAB Show on April 8. Paul joins us on TWiRT, along with Chris Tarr, to talk about recognizing broadcast engineers and their contributions and recognition in the broadcast industry. We’ll also look at some moments and technical achievements in Paul’s career, plus discuss engineers’ role in the future of radio broadcasting.

The NAB Show 2025, held from April 5-9 at the Las Vegas Convention Center, showcased a wide array of cutting-edge technical exhibits focused on media, entertainment, and technology innovations. There’s no way that TWiRT could bring you a wide look at the whole show, but we did manage to interview ten broadcast industry insiders in just over an hour, and we present them to you on this episode! From England to Australia, from the Netherlands to Florida, and from Minnetonka to Los Angeles, we’re letting you in on the technical and industry conversations that exemplify our experiences at NAB. Special thanks to Broadcast Bionics for providing a set for TWiRT production, and the bandwidth to send you our show!

Public radio has an audience size of around 30 million weekly radio listeners with a broader reach exceeding 57 million when including digital platforms. Public Radio engineers play a critical role in building, upgrading, and maintaining the needed facilities and infrastructure. Broadcasters go to the NAB show in Las Vegas to see and hear what’s […]

Never miss a chance to talk with John Bisset, author of the Workbench column in Radio World magazine. John joins us along with Chris Tarr to reveal useful tricks and techniques that any broadcast engineer will find helpful. See this episode’s Show Notes (on this show’s listing on YouTube and at ThisWeekInRadioTech.com). From an easy way to print cable labels, to saving your knees, to marking combo locks with the little-known resistor color code, John brings us some fun and useful ideas for living a better engineering life.

Kathy Stieler and Clark Lindstrom, two prominent leaders in the communication tower industry, are discuss best practices and emerging trends in safety within the broadcast tower sector. Kathy, affiliated with NATE (National Association of Tower Erectors), emphasizes the importance of standardized training and certification programs to ensure worker competency and safety compliance. Clark, who oversees safety initiatives at American Tower, highlights the role of technology in identifying hazards and reducing on-site risks. Both guests promote a proactive safety culture, where regular audits, clear communication, and employee empowerment are prioritized. The conversation underscores the industry’s ongoing commitment to evolving safety standards amid increasing demand for reliable broadcast infrastructure.

Ya gotta love Dustin Tatro’s journey into and through radio broadcasting. Voicing PSAs at 4 years old got Dustin an early start. Then working as a DJ, along with musical interests, honed his technical and operational skills. Now as a General Manager and Ops Manager, Dustin has demonstrably learned the engineering side of radio broadcasting. Indeed, his SBE certification, CBRE, attests to that. Dustin joins Chris Tarr and Kirk Harnack to discuss AoIP, audio processing, work working nicely, even with competing radio stations. Indeed, he joins us from the KORQ-FM transmitter site.