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This Week In Radio Tech (TWiRT)

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“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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21 episodes
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Avg 1 hr 9 min
English

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Friday · 57 min
TWiRT Ep. 820 - Home Grown Radio with Bruce Roberts
What can a recording engineer teach a radio engineer—and what can radio teach someone behind the recording console? On episode 820 of This Week in Radio Tech, Bruce Roberts joins Kirk Harnack to explore how working in both worlds sharpens his ears, strengthens his technical skills, and helps him make better audio. Bruce owns and engineers ARP Studio in Charleston, South Carolina, and is the co-founder and engineer at Home Grown Radio. His passion began before age eight, running sound for his church’s radio broadcasts, and grew into a 50-year career recording artists, building audio equipment, and keeping radio stations on the air. Along the way, his work has included projects for NPR and the BBC, plus dialogue recording for Bill Murray and Army Wives—and an attempted retirement in 2021 that led to a new adventure with Homegrown Radio. Join us for a conversation about recording, broadcasting, and the lessons that travel both ways between the studio and the transmitter!
September 25 · 1 hr 12 min
TWiRT Ep. 819 - AI and Pi with Bill Eaton
Bill Eaton has long been the sort of broadcast engineer who puts new technology to work early—going all the way back to one of the first DOCSIS cable modems bringing Internet service into the home. Today, as Chief Engineer at Oyster Radio, Bill is especially excited about practical uses for AI in broadcast engineering. He uses ChatGPT to take copious notes during transmitter-site visits, documenting maintenance already performed, work still needed, and even clues that another tenant may have changed something at the site. Bill also uses Google Gemini to analyze raw data from test equipment such as the PIRA P175 FM modulation analyzer. And he’s still building, too, recently putting together an FM audio processor using StereoTool software running on a Raspberry Pi. Join us for TWiRT Episode 819 as Bill shows how AI, affordable computing, and an engineer’s curiosity can make everyday broadcast work smarter and more productive.
September 18 · 1 hr 13 min
TWiRT Ep. 818 - What's Next After C-Band Satellite?
For more than 40 years, C-band satellite distribution has been a workhorse for radio and television broadcasters — but another big chunk of that spectrum is going away - leaving almost nothing for program distributors to use. On TWiRT Episode 818, Mark Johnson, President of LinkUp Communications, and Marcos O’Rourke, Engineering Manager at LinkUp, join Kirk Harnack to explain what FCC 26-46 means for broadcasters still depending on C-band delivery. Mark gives us some history, explains how the FCC’s latest plans would eventually leave broadcasters with only about 40 MHz of C-band downlink spectrum, and walks us through the proposed transition timeline. We also look at alternatives already being developed, including increased Ku-band satellite distribution and terrestrial IP delivery using capabilities built into XDS receivers. The transition won’t happen overnight, but the direction is becoming clear: broadcasters using C-band need to start thinking about what comes next. Join us for TWiRT Episode 818 as we sort through the FCC’s plans and what engineers should be watching in the months ahead.
September 11 · 1 hr 9 min
TWiRT Ep. 817 - Early Access to IBC 2026 in Amsterdam
This Week in Radio Tech comes to you from IBC 2026 in Amsterdam, where the broadcast world is gathering to show us what comes next. In Episode 817, we get early access to some of the industry’s technical innovators and discover how they’re responding to a broadcasting landscape that seems to change almost by the day. Adam Robinson of MaxxKonnect joins us alongside Hans van Zutphen of Thimeo Audio Technology B.V. and Jay Tyler of Sales Call. We’ll also hear from Dan McQuillin of Broadcast Bionics and Dan Martin of Derby ONE and Aiir. Together, they offer a revealing look at the technologies, business ideas, and practical solutions shaping the future of radio and broadcasting. Join us in Amsterdam for TWiRT Episode 817—This Week in Radio Tech!
September 5 · 1 hr 21 min
TWiRT Ep. 816 - Deciphering FCC EAS Cybersecurity Rules with Shane Toven
The FCC has adopted new cybersecurity requirements for Emergency Alert System equipment—but turning the language of a Report and Order into practical procedures at a real broadcast facility isn’t always straightforward. What equipment is covered? What constitutes adequate protection? And how can broadcasters comply without making their systems needlessly difficult to operate and maintain? This […]
August 29 · 1 hr 7 min
TWiRT Ep. 815 - LDMOS Technology in FM Transmitters with Paul Barzizza
ow can a modern FM transmitter produce 10,000 watts of RF power from such a surprisingly compact package? On episode 815 of This Week in Radio Tech, GatesAir’s Paul Barzizza joins Kirk Harnack for a close look inside the company’s new GX Series of FM transmitters. Paul draws on his extensive radio and television engineering background to explain the GX amplifier layout and the powerful LDMOS field-effect transistors at the heart of the design. Because these devices spread heat across a larger area, they can handle substantially more power than earlier generations of transistors—giving transmitter designers a way to produce impressive RF output from a comparatively small cabinet. This isn’t merely a discussion of specifications and theory. Paul and Kirk recently installed a GatesAir GX10K—a combined FM exciter and 10,000-watt RF amplifier—at WIQQ-FM in Leland, Mississippi. They share photos from the project, examine how the transmitter is assembled, and talk through the technology that makes it work.
August 21 · 1 hr 12 min
TWiRT Ep. 814 - Amanda Hopp - Chief Engineer
Broadcast engineering is a family affair for Amanda Hopp and her father, Cris Alexander. Amanda is Chief Engineer for Crawford Broadcasting’s Denver stations, while Cris serves as Director of Engineering for the entire company. On this episode of TWiRT, they share Amanda’s path into engineering—and what her experience might teach others considering a career in the field. We also explore cybersecurity, IT and networking, the challenges of maintaining multiple transmitter sites, and Amanda’s inventive use of Raspberry Pis and other small computers for monitoring, control and automation. Along the way, we hear how Amanda draws on programming expertise from elsewhere within Crawford to create practical engineering solutions. Join us for an engaging conversation with two highly accomplished engineers who just happen to be father and daughter.
August 14 · 1 hr 17 min
TWiRT Ep. 813 - What is a Broadcast Engineer in 2026?
Today’s broadcast facilities depend on far more than transmitters, RF systems and studio audio. Engineers are now responsible for Ethernet networks, Windows and Linux computers, cybersecurity, virtualization, streaming, metadata, AoIP, remote access, cloud services—and countless devices that are essentially computers wearing broadcast-equipment clothing. In this episode Kirk Harnack explores how the broadcast engineer’s job has evolved with an outstanding panel: Kevin Trueblood of WGCU Media, Geary Morrill, Northern Region Director of Engineering for Connoisseur Media, and Jeff McGinley, Vice President of Engineering at SummitMedia. How much must one person know about RF, audio and IT? Where should a market engineer’s responsibility end? When hiring, is technical knowledge more important than natural troubleshooting ability? And can a skilled IT professional be developed into a great broadcast engineer? Our guests bring similar—but distinctly different—perspectives to these increasingly important questions. Check out this episode of This Week in Radio Tech and join us as we ask: What is a broadcast engineer in 2026?
August 10 · 1 hr 12 min
TWiRT Ep. 812 - Texas Association of Broadcasters - 2026
This Week in Radio Tech – Episode 812 takes us to Round Rock, Texas, for the 2026 Texas Association of Broadcasters convention! With two full days of engineering sessions, new technology, and plenty of conversations on the expo floor, TAB once again brought together some of our favorite broadcast engineers and industry friends. We caught up with Michael Patton, Dustin Tatro, David Smedley, Chase Daniels, Fred Morton, and Dave Kerstin for their perspectives on radio engineering, technology, and the industry we all enjoy being part of. It’s a great collection of conversations with the people who keep broadcasting working—and moving forward. Join us for TWiRT 812, recorded at the Texas Association of Broadcasters convention in Round Rock!
July 31 · 1 hr 27 min
TWiRT Ep. 811 - Advances in Audio Processing with Matt Levin and Hans van Zutphen
On This Week in Radio Tech Marianne Seidler, Matt Levin, and Hans van Zutphen join us for “Advances in Audio Processing”—Episode 811. Marianne adds some class, history, and great processing advice to the conversation, while Matt and Hans explore the latest developments in StereoTool, including an optional approach that combines multiband A‑G‑C, compression, and limiting […]
July 24 · 1 hr 12 min
TWiRT Ep. 810 - Speaker Design & Technology with Lars-Olof Janflod
Few studio monitors are as instantly recognizable—or as trusted—as those made by Genelec. On episode 810 of This Week in Radio Tech, our guest is Lars-Olof Janflod, Genelec’s Strategy Advisory Officer and a member of the company’s team since 1992. We trace Genelec’s story from its origins in Finland through the development of the distinctive, rugged monitor designs that have become familiar sights in studios and broadcast facilities worldwide. Lars-Olof explains the thinking behind Genelec’s unusual speaker designs and how the company has maintained its reputation for accuracy and reliability across three decades of technological change. We also explore today’s Smart Active Monitoring systems, which combine onboard DSP with automated calibration to optimize each loudspeaker for the room in which it is actually installed. It’s a fascinating conversation about loudspeaker engineering, acoustics, innovation, and the pursuit of truly trustworthy monitoring. Join us for TWiRT episode 810—listen or watch wherever you enjoy This Week in Radio Tech.
July 18 · 1 hr 7 min
TWiRT Ep. 809 - Public Radio Studios in Knoxville with Tim Berry
Our guest on This Week in Radio Tech episode 809 is Tim Berry, Chief Engineer at WUOT-FM, the public radio station at the University of Tennessee in Knoxville. WUOT combines NPR news with classical and jazz music, much of it still played live from CDs and occasionally from the station’s enormous collection of LPs. Tim gives us a tour of the control room, performance area, technical center, and an extraordinary music library that also includes thousands of historic 78 RPM records. We’ll see one of Tennessee’s earliest Audio over IP installations, built around Axia Livewire technology and operating for about 15 years. Tim also maintains more than 20 analog and digital amateur radio repeater sites throughout East Tennessee. Join us for a fascinating look at preserving broadcasting’s rich history while planning the technical upgrades that will carry WUOT into the future.
July 9 · 1 hr 8 min
TWiRT Ep. 808 - When the Chief Engineer Becomes CEO with Brett Gibson
On this episode, Brett Gibson joins Kirk Harnack and co-host Chris Tarr, for a practical conversation about what it takes to build and maintain a reliable broadcast operation today. Brett shares how Voice of the Master’s technical plant has evolved over the years, what systems and standards have made the biggest difference, and how deeply IT has become integrated into modern radio engineering.
July 3 · 1 hr 9 min
TWiRT Ep. 807 - Today's FM Radio Technology with William Harrison
This Week in Radio Tech, Episode 807, features William Harrison, Chief Engineer for WETA-FM in Washington, D.C. William got his start in public radio in the 1990s at WAMU-FM, where computer work quickly expanded into audio and electronics. Since then, he’s worked with PBS, NPR, The Metropolitan Washington Ear, and a number of FM and TV broadcasters. He also chairs SBE Chapter 37 in D.C., serves on the Virginia SECC, sits on the board of the Association of Public Radio Engineers, and occasionally writes for Radio World. In this episode, we talk about real-world FM engineering, including Capital Concerts fireworks show coordination, HD Radio timing and “ballgame” mode, receiver metadata behavior, liquid-cooled transmitters, HLS streaming for broadcast STL use, and dynamic range control in xHE-AAC. Join us for a practical, wide-ranging conversation about broadcast engineering, public radio operations, and the listener experience on This Week in Radio Tech.
June 26 · 50 min
TWiRT Ep. 806 - Engineer of the Year, Terry Harper
This Week in Radio Tech is on location for episode 806 at the Auburn Marriott Opelika Resort & Spa in Opelika, Alabama, where the Alabama Broadcasters Association is celebrating its 80th anniversary with one of several regional receptions around the state.
June 19 · 1 hr 6 min
TWiRT Ep. 805 - FCC Mandatory Cybersecurity for Broadcasters
Cybersecurity is no longer just an IT department concern—it is becoming a broadcast engineering issue, and possibly soon, a regulatory one as well. On episode 805 of This Week in Radio Tech, we’re joined by three experienced broadcast engineers from Georgia and South Carolina: John George, Charles Kinney, and Earl Welsh. We’re talking just ahead of the Georgia-Lina Broadcast Engineering Conference in Augusta, Georgia, and our topic is both timely and practical: the FCC’s proposed cybersecurity rules for broadcasters, especially as they relate to EAS equipment, studio-transmitter links, remote access, and other internet-facing systems that can affect what goes on the air. We’ll discuss what the FCC appears to be concerned about, why default passwords and exposed web interfaces are no longer just “bad practice,” and what station engineers can do now to improve security before a rulemaking turns into a compliance deadline. This is not a theoretical conversation — it is about real broadcast facilities, real equipment, and real operational risks. Join us for episode 805 of This Week in Radio Tech as we look at cybersecurity through the eyes of working broadcast engineers.
June 12 · 1 hr 4 min
TWiRT Ep. 804 - Demystifying RDS/RBDS Data with Tyler Woodward
RDS may be one of the smallest signals your FM station transmits, but getting it right matters more than ever. On Episode 804 of *This Week in Radio Tech*, broadcast network engineer and podcast host, Tyler Woodward, explains the technical details behind RDS and its U.S. counterpart, RBDS. We discuss the data fields every FM engineer should understand, including PI codes, program type, alternate frequencies, and the way field repetition rates affect what listeners see on their radios. Tyler also explains why accurate PI codes are increasingly important for connected-car services such as RadioDNS and dts AutoStage—and points broadcasters to a useful online tool for verifying the correct PI code for their call letters. If you are responsible for an FM station, this is a must-listen—or must-watch—conversation.
June 5 · 1 hr 8 min
TWiRT Ep. 803 - Touring the New Radio ONE in Indianapolis
This Week in Radio Tech is on the road for Episode 803 as we tour the new Radio One broadcast facility near downtown Indianapolis, Indiana. Radio One operates nine radio stations from this facility, with more than 20 studios supporting music, talk, news, and sports programming. It is also home to Network Indiana, which produces and distributes newscasts and long-form programs, along with radio broadcasts for several professional and college sports teams. Mike Hutchens takes us inside the new technical operations center, and Nick Lopez joins us to explain the planning and execution behind the studio build-out. We also visit one of the music-station studios to see how today’s studios can be built for efficiency and human workflow. Join us for a close-up look at how modern audio-over-IP technology, signal routing, metadata, system control, and monitoring all work together across the IP network. It is a practical tour of a large, busy broadcast operation designed for flexibility, reliability, and the demands of today’s radio industry.
May 29 · 1 hr 1 min
TWiRT Ep. 802 - Generative AI in Broadcasting with John Pooley
Generative AI is showing up everywhere, but what does it really mean for broadcasters and broadcast engineers? On This Week in Radio Tech episode 802, John Pooley, CSTE, joins us to share his SBE presentation, “Human Centered Generative AI for Broadcasting,” and to take questions about the practical, ethical, and operational implications of using AI in our work. John’s message is clear: use AI well or risk being left behind—but use it carelessly and you can lose money, judgment, data security, and trust. We’ll talk about keeping humans in control, verifying AI-generated work, protecting sensitive station and customer data, and using AI as a coworker for research, troubleshooting, planning, and professional learning. Join us for a thoughtful, engineer-to-engineer conversation about where generative AI can help broadcasting—and where it absolutely still needs adult supervision.
May 23 · 1 hr 1 min
TWiRT Ep. 801 - WELY - Rising From the Ashes with Erick Burnstad
This Week in Radio Tech Episode 801 takes us to Ely, Minnesota, where WELY AM and FM — long known as "End of the Road Radio" — is getting a new birth. Civic Media is now the licensee, and Chief Engineer Erick Burnstad walks us through the real-world work of rebuilding a small-town radio station with new studios, a new transmitter, and a new FM antenna system. WELY’s story includes deep local history, a period of silence, and now a renewed commitment to community radio in Minnesota’s Boundary Waters region. Erick shares what the project has taught him about planning, tower work, transmitter replacement, automation conversion, and keeping local service alive while the rebuild continues. It’s a great conversation about the kind of engineering that blends RF, logistics, patience, and genuine hometown purpose. Join us for TWiRT Episode 801 and hear how WELY is coming back to life.

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