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This Week In Radio Tech (TWiRT)

Technology Podcasts

“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.

“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.




“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.




TWiRT Ep. 562 - Innovations at Inovonics with Ben Barber

Some of the most useful and helpful broadcast equipment we’ve ever used is designed and built by a company named “Inovonics”. Founded by Jim Wood, the President and CEO now is Ben Barber. An experienced broadcast engineer himself, Ben joins us with terrific tales of his early days with Inovonics, and the backstories on several key pieces of gear that most of us engineers have used!


TWiRT Ep. 561 - Home Studio Perfection with George Whittam

George Whittam is one of the foremost engineers building home studios for radio, TV, and Hollywood voice-over talent. Many of his clients were doing some work in their home studios prior to the COVID pandemic. However, the lockdowns of the past 18 months - particularly in California - have made it absolutely necessary for the quality of home studios to rival that of commercial facilities. This is where George’s expertise has been proven time and time again. "Home Studio Perfection" is what...


TWiRT Ep. 560 - Streaming Success in 2021 and Beyond

It’s been well over 20 years since some radio stations began streaming their audio on the Internet. And these days, most stations do have a streaming presence. But, is that enough with so much competition? Is there more in terms of convenience and utility that we broadcasters can provide to our listeners? Ed Martinez, Robert Minnix, and David Bialik sure think so - and hundreds of radio stations agree. From automatic content archiving to instant rewind and even “access control” using...


TWiRT 559 - 1-Hour Chief Engineer Master Class with Matt Gholston

It’s likely impossible for a true “Master Class” in anything to be done in 1 hour. However, Matt Gholston does take us through some of the key concepts that Chief Engineers must heed. From AoIP ideas to managing tower crews, Matt emphasizes some of the most important skills for today’s broadcast engineer. From teaching school to consulting hundreds of broadcasters, Matt’s wealth of knowledge is easily shared on this episode!


TWiRT Ep. 558 - Master of His Virtual Domain with Sean Kelly

One of the most clever engineering technicians we’ve met is also a bar and hotel owner and tour boat operator. So why wouldn’t he operate some hip radio stations as well? Sean Kelly is here to update us on virtualizing the operation of several online radio stations. Sean is running HITz Digital, KISS Digital, and PALM Torbay - and doing so with little more than an off-lease Dell R710 server with both free and commercial software.


TWiRT Ep. 557 - Broadcasting Safely During a 2nd Lockdown with Stephen Wilkinson

Sydney, Australia, is on another pandemic lockdown, but this time broadcasters are better prepared. Stephen Wilkinson is Technical Operations Manager at Hope Media in Sydney, and is responsible not only for keeping this important community radio station on-the-air, but also for keeping the IT systems safe from cyber attacks. Stephen joins us to talk about Covid workflows, specific equipment and software, and several key points for reducing the risk of malware and ransomware at broadcast...


TWiRT Ep. 556 - Engineering for Fun with Jim Grum Graham

Does anyone find humor and joy in broadcast engineering like Jim Grum Graham does? I don't think so!! Through flood, heart attack, crazy contests, and fun radio remotes, Jim Graham's engineering experiences have reduced him to the man he is today! What’s more, we can learn some important engineering lessons from Jim’s mistakes - and from his triumphs! Enjoy an hour with Jim as he recounts some crushing defeats as well as the occasional victory in his illustrious radio career.


TWiRT Ep. 555 - Aerial Measurements, Military Precision with Phil Larsen

Phil Larsen used to fly drones to pick up bad guys discussing their evil plans. Now he runs the QForce Airborne Division of QCommunications, listening to radio and TV stations while measuring transmitted signal patterns. Aerial signal measurement has been around since an engineer carried an RF field strength meter into a helicopter. But, today’s measurements using custom-built drones are far superior to earlier methods. Phil explains what goes into drone-based RF measurements to assure...


TWiRT Ep. 554 - Tower Tales with Tom Ray

Some days you’re the windshield, and some days you’re the bug. And some days you experience some of each. Tom Ray’s recent experience with a 4-tower AM directional array new New York is a study in “surprise” and “relief” as he dealt with half of a tower collapsing. These AM towers are in suburban wetlands, surrounded by residences, a city park, and protected waterways. Tom describes how, with a little luck and some expert help, a tower catastrophe got resolved and further problems were...


TWiRT Ep. 553 - What's Next in Audio Processing with Frank Foti

From modifying off-the-shelf audio processors, to hand-building his own designs, to overseeing the most successful radio audio processing company in the world, Frank Foti has both predicted and created the future of audio enhancement. In this episode we’ll hear about Frank’s collaboration with great record producers and how that work has continued to inform the development of broadcast audio processors. Loudness targets, a peak unlimiter, and a density detector - all discussed right here.


TWiRT 552 - Satellite C-Band Repack with Mark Johnson

The satellite C-Band repack is upon us. Indeed, some 5G carriers are already operating just below the satellite C-Band and have caused interference. More such interference is on the way and broadcast engineers need to act now. Mark Johnson with LinkUp Communications joins us to outline the C-Band repack timeline and share photos from recent filter installations.


TWiRT Ep. 551 - There's Power in the Pipes with Tony Dimsdale

Tony Dimsdale loves RF. And he loves the plumbing it takes to transport high-power RF energy from one place to another without “spilling” any! Working with GatesAir during the TV repack put Tony in the middle of the action, moving FM station antennas, installing RF combining and switching systems, and learning the nuances and “gotchas” of the art of RF plumbing. He shares his knowledge and experience with us on this episode of TWiRT.


TWiRT Ep. 550 - Digital AM & Multiplex FM with Philipp Schmid & Alex Hartman

Four years ago Philipp Schmid at Nautel introduced HD Radio technology allowing up to 15 digital program feeds on one FM channel. They called it “Multiplex FM”. Now the idea and technology have expanded to include the DRM (Digital Radio Mondiale) transmission system. What’s more, Nautel and Telos Alliance have demonstrated a cloud-based system for processing multiple HD channels along with the analog FM program, with reliable Internet delivery to transmitter sites. Philip and Alex fill us in...


TWiRT Ep. 549 - Let's Move In Together with Mike Patton

With urban sprawl, property values escalating, and AM stations having a more difficult time financially, sometimes it makes sense to combine one or more AM transmitters at a common transmitter site. Certain technical criteria must be met for this to happen, and combining AM directional stations can be challenging. Mike Patton has helped several AM stations move onto “common ground” and teaches about the key technical aspects to consider when combining transmitters.


TWiRT Ep. 548 - Combining FM Stations with Rob Bertrand and Andy Gunn

Too many FM antennas on one tower? They’re (maybe) creating intermod products? No room or structure for more tenants? It may be past time to consolidate all the FM signals onto a master FM antenna. WAMU-FM and WTOP-FM in Washington, DC, did exactly this - and worked with other FM tenants on the same tower to create such a combined, master FM antenna system. Rob Bertrand, CTO, and Andy Gunn, DoE, tell the story and give us a tour of the combiner room at American University.


TWiRT Ep. 547 - Docker for Broadcasters with Cam Eicher

Heads-up, broadcast engineers! Docker is coming your way. What's Docker? It's a brand name that's part of "containerized software" - and broadcast equipment is already moving there. Your audio consoles, talkshow system, and IP intercom can all run on PC or servers - on-site or in a data center. This is happening now! Cam Eicher with Telos Alliance gives a great tutorial on Docker containerized software and more on this episode of TWIRT.


TWiRT Ep. 546 - Nineteen Mix-Minus Feeds with Rob Ashard

Why is Rob Ashard managing 19 mix-minus feeds while taping a British TV show? When COVID keeps the audience out of the studio, Rob and his colleagues must go to them - in their homes and flats. Rob Ashard is the lead audio mixer for The Graham Norton Show and Ant


TWiRT Ep. 545 - Today's Challenges and Solutions with Cris Alexander

A broadcast company’s Director of Engineering faces more challenges from different directions than ever before. With telcos abandoning legacy services, fires threatening remote transmitter sites, AM tower sites having to move out, and thieves stealing copper or other valuables, the DoE job is full of daily dilemmas and crises. Cris Alexander, DoE at Crawford Broadcasting, deals with these problems and more, and depends on a team of local engineers as well. We get to spend an hour with Cris...


TWiRT Ep. 544 - Busta 'Crete with John Bisset

Bustin’ concrete, CIDR notation, Rat Magic, unlimited (almost) photo storage, more mouse eviction tactics, and the best site maintenance practices. Whew! It’s all covered and uncovered on this TWiRT episode with the beloved John Bisset, author of “Workbench”.


TWiRT Ep. 543 - EAS, One Year into the Pandemic - with Adrienne Abbott

EAS - The Emergency Alert System: Is it sometimes a pain for broadcasters? Or is it a life-saving emergency messaging system? Adrienne Abbott is Chair of the Nevada EAS. She brings a balanced and reasonable perspective to EAS operations and functionality. Plus, she’s helping to enhance the localism of EAS alerts in Clark County, Nevada, where Las Vegas and suburbs sprawl across the high desert.