
This Week In Radio Tech (TWiRT)
Podcast von guysfromqueens
“TWiRT” is your go to show if you want to get behind the scenes on what makes broadcasting possible. The show addresses common issues as well as explaining past experiences from a wide array of hosts who each come from a different background in radio technology. This show is a must for any tech geek or for anyone who is interested in what goes on behind the boards and wires.
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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.

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