This Week In Radio Tech (TWiRT)

Today we're diving into a critical topic: the evolution from solo engineering efforts to collaborative support models in broadcasting. Just as a one-person band can only play so many instruments at once, a single engineer can't tackle every technical challenge alone. By banding together and working in groups outside traditional broadcast companies, we can support one another, foster career growth, and achieve a healthier work-life balance. Our guests Rob Bertrand and Shaun Dolan aim to do just that at Inrush Broadcast Services,, a 14-person broadcast technology service provider

What kind of “radio station” is on-the-air only twice per hour? How about CBS Radio News? With the precision of a watchmaker, the CBS Radio News network delivers news updates to hundreds of radio stations and millions of listeners. Mitch Glider is the Supervising Engineer at their headquarters on West 57th Street in New York City. Through the challenges of at-home news anchors (through the pandemic) and changes in technology, Mitch and just a few colleagues keep the audio and metadata correctly routed. In this episode, we’re learning about past, present, and future network radio operations. Mitch encourages engineers to “Respect the past, and embrace the future.”

If you’re building a new radio studio, or rebuilding one, Chris Tarr is here to help. This is your opportunity to get The Ninjaneer’s expert advice without laying out thousands of dollars in consulting fees. In this episode, we’re looking at various technologies to link your radio studio with your transmitter site. There are more choices now than ever! And we’re looking at today’s radio studios; how are they different from those of the past? We think studios can be a lot simpler than they used to be, mostly thanks to Audio over IP technology.

If you’re building a new FM radio station, or rebuilding one, Chris Tarr is here to help. This is your opportunity to get The Ninjaneer’s expert advice without laying out thousands of dollars in consulting fees. This episode focuses on what to do when you get your FCC Construction Permit. Chris gives hard-earned advice on towers, antennas, transmission line, transmitter selection, and more.

What’s ahead in 2025 for radio programming? For radio talent? For radio programming executives? Where does Artificial Intelligence fit in? What audience is key to attract to radio and how can radio programmers make headway on that? How will new “PPM Wearables” affect station ratings? And how important are streaming and on-demand programs to radio’s future success? We got answers and opinions on all these questions from John Shomby at Country’s Radio Coach. John’s been a consultant, programmer, and coach focusing on Talk Radio and Country Radio formats, and he’s our guest this week filling us in on the key topics and strategies for radio’s future success.

Jeff McGinley is the kind of engineer who pays attention to the important things. He’s focused on the technologies that bring value to the on-air talent and to the listeners, all the while satisfying the shareholders drive for return on investment. Jeff’s advice is based on real-world experience, so you know there’s value there, too. On this episode we’re discussing the end of official support for Windows 10, and moving to Windows 11. Plus, Jeff and Chris both relate the importance of good metadata for listeners via RDS and PAD (for HD Radio). And we discuss the significant benefits of 11 GHz IP Radio links.

Akamai Broadcasting bought six radio stations (2 AM & 4 FM) plus a number of translators on Maui. Russell Laferty has been building new facilities, and your TWiRT host, Kirk Harnack, is helping with the final wiring and configurations. In addition to a new rack room and (so far) one studio, Russell is moving several studio-transmitter link (STL) systems and installing new ones. One highlight of the work has been improvements to two tower sites on Mt. Haleakala. We visit the upper site at close to 10,000 feet above sea level where Russell gives us a video tour of the building. Plus, learn how a defective Ethernet switch earned Kirk a trip to this transmitter site above the clouds.

Necessity truly is the mother of invention. So, when Jim Gray and Alex Hartman needed to gain remote control of some late-model CD players, they developed “Babelfish.” The Babelfish Ecosystem is a solution for logic integration amongst systems that typically are unable to communicate with each other. Whether it's a 40 year old on-air light system that only speaks in relays or a new IP based system that only communicates virtually, the Babelfish Ecosystem allows unlike systems to communicate as one. Babelfish, speak any language for GPIO control. Alex and Jim join us to explain the necessity, the solution, and the tech behind these useful tools.

Engineers are usually the unsung heroes of Broadcasting. But Mark and Paula Persons have set a high bar for professionalism in our industry. They were both inducted into the Minnesota Broadcasters Hall of Fame and join us to talk about it. Did you know that Mark never wore blue jeans to work - not even at transmitter sites? And Paula’s keen accounting and PR skills made the most of Mark’s efforts both in the field and in the repair shop. We engineers can all learn from the Persons’ professionalism and teamwork.

In late September, 2024, hurricane Helene hit parts of Florida and caused wind damage and severe flooding in Georgia, South Carolina, and especially Western North Carolina. Hurricane Milton hit Florida in October, 2025, causing even more damage there. In both storms, electricity was knocked out, cell phone service disrupted, and Internet was down for many. In these disasters, local and regional radio largely remained on-the-air, alerting listeners to the storms’ arrivals and keeping them updated with news of emergency services, relief sites, and a lot more. Christian Vang and Dave Anderson are broadcast engineers in Northern Georgia and Tampa, Florida, respectively. Both are seasoned in planning for disasters and working those plans while being flexible in emergency response, all the while keeping studios and transmitters operational. Chris Tarr joins us as well with some additional notes on emergency preparedness for broadcast engineers.