Fully Modulated
I’m Tyler, and I’ve been fascinated by radio since getting my first AM/FM radio as a kid. On Fully Modulated, I dive into the history of radio and television, exploring the stories behind the medium and taking you behind the scenes to see how it all works.
From vintage broadcasts to modern digital signals, we break down the technology and uncover the forgotten moments that shaped how we communicate and entertain. Whether it’s the science of transmission or the creative chaos of production studios, I make the complex stuff easy to understand.
This is an independent podcast, not affiliated with any radio station, television network, or media company.
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Fully Modulated
Beyond the Tone: Innovations in Alerting
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In this final chapter of our special series, The Story Behind EAS, Tyler Woodward explores how emergency alerting is moving beyond familiar tones and crawls into a new era of rich data and smarter delivery. From the Common Alerting Protocol to NextGen TV, the systems that warn us are becoming faster, more precise, and more connected than ever.
You’ll hear how artificial intelligence is helping emergency managers detect threats in real time and how social media is reshaping the way alerts spread through communities. We also look ahead to a future where your phone, car, and smart devices all work together to keep you informed.
Whether you work in broadcasting or you’re simply curious about the systems that protect us, this episode will leave you with a clearer understanding of how technology is transforming emergency communication.
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Have you ever wondered if the loud emergency tones interrupting your show are stuck in the past? Probably not. What if the next generation of alerts could find you instantly On your phone, your TV, your smart speaker, maybe even your car? Today we're looking ahead to see how the emergency alert system is evolving and what it means for all of us. Hey, tyler Woodward here. I'm a certified broadcast networking technologist, thanks to the Society of Broadcast Engineers, and I've spent my career figuring out how to get signals from point A to point B. This is Fully Modulated where signal meets podcast.
Speaker 1:Today marks the final episode of our series the Story Behind EAS. Today marks the final episode of our series the Story Behind EAS. Over the past episodes we've explored where the emergency alert system came from, how it works and how broadcasters and emergency managers keep it running. Now we're stepping into the future. We'll look at how technologies like the Common Alerting Protocol are transforming the way warnings are sent. We'll talk about how artificial intelligence, social media and advanced data networks are reshaping emergency communication and what it means for your safety. By the end you'll understand where alerts are headed and how you can stay prepared as technology continues to evolve. But first the disclaimer Fully Modulated, is an independent podcast and website. It isn't affiliated with, endorsed by or represents any radio or television station, media company or broadcast network. All opinions expressed here are mine and mine alone.
Speaker 1:Let's start with the big shift happening behind the scenes and the move from legacy alerting systems to digital protocols. For decades, emergency alerts in the US relied on analog audio tones, relayed station to station like a giant game of telephone. Those systems worked, but they had limitations they couldn't always target specific regions and they weren't designed for mobile devices. Enter the Common Alerting Protocol, or CAP. Enter the Common Alerting Protocol, or CAP. Cap is an XML-based data format that allows alert originators, like the National Weather Service or local emergency managers, to create a single alert message. That alert message can be translated into text, audio, images and even video. Imagine a tornado warning. A CAT message can simultaneously send a text to your phone, a crawl across your TV screen, audio over your radio, pop-ups on highway signs and updates to apps and websites. This data-rich approach is a huge leap forward. Leap forward. Instead of every system having its own format and workflow, cap provides a standard to everyone, and well, one that everyone can understand. The Federal Emergency Management Agency began requiring CAP compliance for broadcasters back in 2012. But the technology continues to improve. Cap can support multilingual alerts, rich media and geo-targeting down to specific neighborhoods. One example you might have seen is the Wireless Emergency Alerts, or WEA, that pop-up on your phone. Those are built on CAP messages. In recent years, the character limit has increased and the targeting has become much more precise. The takeaway Well, cap lays the groundwork for smarter, more flexible alerts, ones that meet the people where they are.
Speaker 1:Let's zoom out and see how emerging technologies are pushing alerts even further. One area gaining momentum is artificial intelligence. Emergency managers and broadcasters are experimenting with AI tools to automatically detect severe weather patterns, generate warning language, quickly identify false alarms before they spread. For example, some AI models can process satellite and radar data in real time, spotting storm signatures that would take a human longer to analyze. In a situation where seconds matter, that speed can save lives.
Speaker 1:Then there's social media. Then there's social media. While official alerts still come through authorized channels, platforms like Twitter or X, facebook and Instagram have become essential amplifiers. When a WEA message goes out, local agencies often post the same information on social media, where it can be shared and discussed instantly. But this also creates challenges. Misinformation can spread just as fast as facts. One fascinating innovation is the idea of crowdsourced confirmation. Some emergency operations centers monitor hashtags and geo-targeted posts to validate reports of damage or power outages, which can help refine the official response.
Speaker 1:Another trend to watch is the integration of Internet of Things devices. Imagine your smart thermostat flashing a warning or your car's dashboard displaying evacuation instructions. Automakers and tech companies are already testing these systems In some pilot programs. Vehicles receive CAP messages over cellular networks and display real-time alerts. But all this technology requires robust infrastructure, funding and training. Smaller broadcasters and emergency managers sometimes struggle to keep up with the pace of change. So while the future is promising, it's also uneven. Some communities are ahead of the curve, while others rely on more traditional systems. The bottom line technology is rapidly expanding the reach and accuracy of emergency alerts, but to human judgment and clear communication remains an absolute, essential part of the system.
Speaker 1:Let's run through a few things you can do to stay ready as alerts evolve. Number 1. Enable wireless emergency alerts on your phone. It sounds obvious, I know, but some people disable them without even realizing it In your phone's settings. Make sure amber and emergency alerts are turned on. Number two follow trusted local sources on social media, your county's emergency management office or local meteorologist will often share accurate, timely updates. Number three invest in a NOAA weather radio. Even with all this new tech, a battery-powered radio remains a reliable backup if cell networks go down. 4. Understand your area's alerting systems. Each county or state might have slightly different protocols and channels. Check your local emergency management website for details.
Speaker 1:Alright, a little listener Q&A. Here's the question I get. If everything is going digital, will traditional broadcast alerts eventually disappear? And while cap and digital delivery are the future, the FCC still requires broadcasters to maintain their EAS equipment and participate in regular tests. Many engineers, including myself, see over-the-air alerts as a vital safety net when internet or cell service fail. In other words, traditional broadcast alerting isn't going anywhere anytime soon.
Speaker 1:Closer look at one of the most promising developments NextGen TV, also known as ATSC 3.0. Nextgen TV is the latest standard for over-the-air television broadcasting. Among other features like 4K resolution and better audio, it has powerful capabilities for emergency alerting. Because ATSC 3.0 is an IP-based system, it can deliver rich multimedia alerts directly to your TV or set-top box. Well, in layman terms, that means hyper-local warnings tailored to your address, maps and evacuation routes on screen, multiple audio languages, interactive features so you can get more details In pilot programs.
Speaker 1:Nextgen TV has shown it can reach viewers faster, with clearer information than traditional EAS crawls with clearer information than traditional EAS crawls. Imagine you're watching a show and an evacuation order appears not just as text but with a voice in your language that you understand, a map of your neighborhood and a scannable QR code linking you to resources. Of course, next-gen TV adoption is still in progress. Not every station or household has capable equipment yet, but as broadcasters upgrade transmitters and viewers replace TVs, the reach will expand. This is where the future gets exciting. Combining CAP next-gen TV, combining CAP, nextgen TV, wea and IoT devices all create a seamless multi-platform alerting ecosystem. Your takeaway the alerts of tomorrow will be faster, clearer and harder to ignore, and that's a good thing when lives are on the line.
Speaker 1:So today we explored the future of emergency alerting, from CAP's data-rich messages to AI-driven detection, social media amplification and the promise of next-gen TV. One of the other things that we didn't discuss in this series is how there's talks right now in the industry to place eas in the cloud. Maybe we'll do a bonus episode or a standalone episode on that subject, coming up in a few weeks. This also wraps it up for the story behind EAS. I hope you've enjoyed learning how emergency alerts work, where they come from and where, hopefully, things are headed. If you take one thing away, let it be this the systems that protect us are evolving fast, but the basics trustworthy information, information, preparation and community are as important as ever. Next time, we'll explore how broadcast engineers are preparing for the unexpected, whether it's natural disasters, cyber attacks or just the challenges of keeping the air Fully. Modulated runs on curiosity and modulators like you. If you like to keep this show going, head over to FullyModulatedcom to learn more and become a supporter today. We'll see you next time.