News
Listening for the right radio signals could be an effective way to track small drones
Unidentified drone sightings near sensitive U.S. locations raise public concern. Challenges exist in tracking these drones, necessitating better detection methods and potential regulatory changes for airspace management.
Iain Boyd, University of Colorado Boulder
The recent spate of unidentified drone sightings in the U.S., including some near sensitive locations such as airports and military installations, has caused significant public concern.
Some of this recent increase in activity may be related to a September 2023 change in U.S. Federal Aviation Administration regulations that now allow drone operators to fly at night. But most of the sightings are likely airplanes or helicopters rather than drones.
The inability of the U.S. government to definitively identify the aircraft in the recent incidents, however, has some people wondering, why can’t they?
I am an engineer who studies defense systems. I see radio frequency sensors as a promising approach to detecting, tracking and identifying drones, not least because drone detectors based on the technology are already available. But I also see challenges to using the detectors to comprehensively spot drones flying over American communities.
How drones are controlled
Operators communicate with drones from a distance using radio frequency signals. Radio frequency signals are widely used in everyday life such as in garage door openers, car key fobs and, of course, radios. Because the radio spectrum is used for so many different purposes, it is carefully regulated by the Federal Communications Commission.
Drone communications are only allowed in narrow bands around specific frequencies such as at 5 gigahertz. Each make and model of a drone uses unique communication protocols coded within the radio frequency signals to interpret instructions from an operator and to send data back to them. In this way, a drone pilot can instruct the drone to execute a flight maneuver, and the drone can inform the pilot where it is and how fast it is flying.
Identifying drones by radio signals
Radio frequency sensors can listen in to the well-known drone frequencies to detect communication protocols that are specific to each particular drone model. In a sense, these radio frequency signals represent a unique fingerprint of each type of drone.
In the best-case scenario, authorities can use the radio frequency signals to determine the drone’s location, range, speed and flight direction. These radio frequency devices are called passive sensors because they simply listen out for and receive signals without taking any active steps. The typical range limit for detecting signals is about 3 miles (4.8 kilometers) from the source.
These sensors do not represent advanced technology, and they are readily available. So, why haven’t authorities made wider use of them? https://www.youtube.com/embed/9yFzdpEqQCs?wmode=transparent&start=0 Drones were all the buzz in the Northeast at the end of 2024.
Challenges to using radio frequency sensors
While the monitoring of radio frequency signals is a promising approach to detecting and identifying drones, there are several challenges to doing so.
First, it’s only possible for a sensor to obtain detailed information on drones that the sensor knows the communication protocols for. Getting sensors that can detect a wide range of drones will require coordination between all drone manufacturers and some central registration entity.
In the absence of information that makes it possible to decode the radio frequency signals, all that can be inferred about a drone is a rough idea of its location and direction. This situation can be improved by deploying multiple sensors and coordinating their information.
Second, the detection approach works best in “quiet” radio frequency environments where there are no buildings, machinery or people. It’s not easy to confidently attribute the unique source of a radio frequency signal in urban settings and other cluttered environments. Radio frequency signals bounce off all solid surfaces, making it difficult to be sure where the original signal came from. Again, the use of multiple sensors around a particular location, and careful placement of those sensors, can help to alleviate this issue.
Third, a major part of the concern over the inability to detect and identify drones is that they may be operated by criminals or terrorists. If drone operators with malicious intent know that an area targeted for a drone operation is being monitored by radio frequency sensors, they may develop effective countermeasures. For example, they may use signal frequencies that lie outside the FCC-regulated parameters, and communication protocols that have not been registered. An even more effective countermeasure is to preprogram the flight path of a drone to completely avoid the use of any radio frequency communications between the operator and the drone.
Finally, widespread deployment of radio frequency sensors for tracking drones would be logistically complicated and financially expensive. There are likely thousands of locations in the U.S. alone that might require protection from hostile drone attacks. The cost of deploying a fully effective drone detection system would be significant.
There are other means of detecting drones, including radar systems and networks of acoustic sensors, which listen for the unique sounds drones generate. But radar systems are relatively expensive, and acoustic drone detection is a new technology.
The way forward
It was almost guaranteed that at some point the problem of unidentified drones would arise. People are operating drones more and more in regions of the airspace that have previously been very sparsely populated.
Perhaps the recent concerns over drone sightings are a wake-up call. The airspace is only going to become much more congested in the coming years as more consumers buy drones, drones are used for more commercial purposes, and air-taxis come into use. There’s only so much that drone detection technologies can do, and it might become necessary for the FAA to tighten regulation of the nation’s airspace by, for example, requiring drone operators to submit detailed flight plans.
In the meantime, don’t be too quick to assume those blinking lights you see in the night sky are drones.
Iain Boyd, Director of the Center for National Security Initiatives and Professor of Aerospace Engineering Sciences, University of Colorado Boulder
This article is republished from The Conversation under a Creative Commons license. Read the original article.
Discover more from Daily News
Subscribe to get the latest posts sent to your email.
actors & performers
T.K. Carter, The Thing and Punky Brewster Actor, Dies at 69
Actor T.K. Carter, known for The Thing and Punky Brewster, has died at age 69. A look at his career and lasting legacy in film and television.
T.K. Carter in Punky Brewster (1984) Image: IMDB
Veteran actor T.K. Carter, best known for his roles in The Thing and the popular 1980s television series Punky Brewster, has died at the age of 69.
Authorities confirmed Carter was found unresponsive at his home in Duarte, California. No foul play is suspected, and an official cause of death has not yet been released.
A Career Spanning Decades
Born Thomas Kent Carter, T.K. Carter built a career in film and television that spanned more than four decades. He became a cult favorite portraying Nauls in John Carpenter’s 1982 horror classic The Thing, a film that continues to influence the genre today.
Television audiences widely remember Carter for his role as Mike Fulton on Punky Brewster, where his comedic timing and grounded performances helped make the show a lasting favorite of the era.
Film and Television Legacy
In addition to his best-known roles, Carter appeared in films such as Runaway Train, Ski Patrol, and Space Jam. His television work included guest appearances on a wide range of series throughout the 1980s, 1990s, and beyond.
Known within the industry as a reliable and versatile performer, Carter often brought authenticity and warmth to supporting roles that left a lasting impression, even in brief appearances.
Remembering T.K. Carter
As news of his passing spreads, fans and colleagues alike are reflecting on T.K. Carter’s contributions to film and television. While he may not have always been the leading name on the marquee, his work helped shape stories that continue to be watched and appreciated by new generations.
T.K. Carter is remembered for his enduring performances, professional dedication, and the quiet but meaningful legacy he leaves behind.
Related Coverage
- Los Angeles Times: Actor T.K. Carter Dies at 69
- People Magazine: T.K. Carter, ‘The Thing’ and ‘Punky Brewster’ Actor, Dead at 69
- Entertainment Weekly: T.K. Carter, ‘Punky Brewster’ and ‘The Thing’ Actor, Dies
- ABC News: Veteran Actor T.K. Carter Dies at 69
Stay with STM Daily News for updates to this developing story and more independent coverage of entertainment, history, and culture. Visit www.stmdailynews.com for the latest.
Discover more from Daily News
Subscribe to get the latest posts sent to your email.
News
Gregory Outreach Services Expands Food Access with Addition of Third Refrigerated Van
Gregory Outreach Services expands its mission to fight food insecurity with the addition of a third refrigerated van, doubling food access for low-income seniors and veterans in Phoenix.
Last Updated on January 8, 2026 by Daily News Staff
Gregory Outreach Services’ newest refrigerated delivery van expands food access for low-income seniors and veterans across Phoenix.
Phoenix, AZ — Gregory Outreach Services has taken a major step forward in its mission to fight food insecurity with the addition of a third refrigerated delivery van, significantly expanding its capacity to serve low-income seniors and veterans across the Phoenix area.
The new refrigerated van was made possible through the support of a generous anonymous donor. The expansion is further strengthened by the continued generosity of the BHHS Legacy Foundation, who donated fresh produce to support the organization’s growing distribution efforts.
As rising food costs and inflation continue to place pressure on individuals living on fixed incomes, the need for reliable access to nutritious food has never been greater. This latest addition to the organization’s mobile fleet allows Gregory Outreach Services to double the number of individuals served, while maintaining strict food safety and quality standards.
“As the cost of living continues to rise, more seniors and veterans are struggling to afford nutritious food,” said Diana Gregory, Founder and CEO of Gregory Outreach Services. “This van allows us to bridge a widening gap for individuals living on fixed incomes, many of whom face mobility challenges and limited access to fresh food options.”
Meeting a Growing Community Need
Gregory Outreach Services works directly with seniors and veterans who are disproportionately affected by inflation, medical expenses, and transportation barriers. For many, simply reaching a grocery store can be a challenge. Refrigerated vehicles are essential to ensuring that fresh fruits and vegetables arrive safely and consistently at senior housing communities, veteran shelters, and community distribution sites.
“This third van complements the two already in operation and represents a critical milestone in our growth,” Gregory added. “We are deeply grateful to our anonymous donor for investing in our mission, and to BHHS Legacy Foundation’s Board of Directors and its CEO, Jerry Wissink for Legacy’s generosity in donating fresh produce. Together, this support allows us to scale our impact and respond to the increasing needs of our community.”
Expanding Impact While Preserving Dignity
With an expanded fleet and increased food supply, Gregory Outreach Services is better positioned to address food insecurity, promote healthier outcomes, and serve seniors and veterans with dignity, respect, and care. The organization’s mobile delivery model ensures help reaches those who need it most — directly and reliably.
About Gregory Outreach Services
Gregory Outreach Services is a nonprofit organization dedicated to improving health outcomes for low-income seniors and veterans through mobile produce delivery, nutrition education, and community-based wellness programs. By bringing fresh food directly to those most in need, the organization works to reduce food insecurity and strengthen community wellness.
For more information, visit dianagregory.com.
Stories of Change: People Making a Difference
Discover inspiring stories of changemakers making a positive impact. Explore videos and articles of people tackling today’s biggest challenges with action and hope. Visit: https://stmdailynews.com/stories-of-change/
Dive into “The Knowledge,” where curiosity meets clarity. This playlist, in collaboration with STMDailyNews.com, is designed for viewers who value historical accuracy and insightful learning. Our short videos, ranging from 30 seconds to a minute and a half, make complex subjects easy to grasp in no time. Covering everything from historical events to contemporary processes and entertainment, “The Knowledge” bridges the past with the present. In a world where information is abundant yet often misused, our series aims to guide you through the noise, preserving vital knowledge and truths that shape our lives today. Perfect for curious minds eager to discover the ‘why’ and ‘how’ of everything around us. Subscribe and join in as we explore the facts that matter. https://stmdailynews.com/the-knowledge/ Get The Knowledge. Read more community news and local stories at STM Daily News.
Discover more from Daily News
Subscribe to get the latest posts sent to your email.
Economy
How Bird Flu Upended the U.S. Egg Market — and Why Prices Are Finally Beginning to Stabilize
Egg Market: Egg prices surged during the U.S. bird flu outbreak as laying hen inventories collapsed. Here’s how flock recovery is helping stabilize egg prices today.
How Bird Flu Upended the U.S. Egg Market — and Why Prices Are Finally Beginning to Stabilize
Few grocery items frustrated American consumers over the past two years quite like eggs. Once an inexpensive staple, egg prices surged to historic highs following a prolonged outbreak of highly pathogenic avian influenza (HPAI), commonly known as bird flu. Today, however, prices appear to be stabilizing. Here’s how the crisis unfolded — and why relief is finally showing up at the checkout line.The Bird Flu Crisis and Its Impact on Egg Supply
Beginning in 2022, the United States experienced one of the most severe bird flu outbreaks in modern history. The virus spread rapidly through poultry farms, forcing producers to cull millions of birds to prevent further transmission. Egg-laying hens were hit especially hard, leading to a sharp drop in egg production nationwide. By 2024 and into early 2025, the cumulative losses totaled well over one hundred million birds. With fewer hens producing eggs, supply tightened dramatically, and prices soared. At the peak of the crisis, consumers in some regions saw egg prices climb above six dollars per dozen.Why Egg Prices Stayed High for So Long
Unlike other agricultural products, egg production cannot rebound quickly after a disruption. When laying hens are lost, they must be replaced with young birds known as pullets. These pullets require approximately four to six months to mature before they begin producing eggs. Even after farms were cleared to restock, producers faced additional challenges. Strict biosecurity measures, concerns about reinfection, and the logistical complexity of rebuilding flocks slowed the recovery process. As a result, egg supplies remained tight long after the initial outbreaks subsided.Laying Hen Inventory Recovery Takes Shape
By mid to late 2025, signs of recovery became more apparent. Producers gradually increased pullet placements, and national laying hen inventories began to grow. While the total number of hens had not yet returned to pre-outbreak levels, the upward trend marked an important turning point. This steady rebuilding of flocks meant more eggs entering the supply chain. Wholesale markets responded first, with prices easing as inventories improved. Retail prices soon followed, signaling that the worst of the supply shock was beginning to fade.Egg Prices Begin to Stabilize
As laying hen inventories recovered, egg prices moved away from their record highs. By late 2025 and into early 2026, prices at many grocery stores had fallen noticeably compared to peak levels. While costs remain somewhat higher than pre-pandemic norms, the extreme volatility seen during the height of the bird flu crisis has largely subsided. Additional factors also helped stabilize the market. Federal and state efforts to strengthen biosecurity, limited egg imports to supplement domestic supply, and improved disease monitoring all contributed to a more balanced egg market.What This Means for Consumers
For consumers, the stabilization of egg prices offers a welcome sense of normalcy. Shoppers are less likely to encounter sudden price spikes, and eggs are once again becoming a predictable part of grocery budgets. While prices may not return to the ultra-low levels seen years ago, the recovery of laying hen inventories suggests that the egg market is on firmer footing. Continued vigilance against future outbreaks will be critical, but for now, the outlook is far more stable than it was during the height of the bird flu crisis.Looking Ahead
The bird flu outbreak served as a reminder of how vulnerable food systems can be to disease disruptions. Thanks to gradual flock rebuilding and improved supply conditions, egg prices are stabilizing — a sign that recovery, while slow, is real. If current trends continue, consumers and producers alike may finally be moving past one of the most turbulent chapters in the modern egg market.Further Reading & Sources
- USDA – Avian Influenza Updates and Poultry Industry Impact
- USDA Economic Research Service – Egg Prices and Food Inflation Data
- U.S. Bureau of Labor Statistics – Consumer Price Index (Egg Prices)
- Associated Press – Coverage of the U.S. Bird Flu Outbreak
- USDA Agricultural Marketing Service – Egg Market and Wholesale Reports
- CDC – Avian Influenza Information and Monitorin
Dive into “The Knowledge,” where curiosity meets clarity. This playlist, in collaboration with STMDailyNews.com, is designed for viewers who value historical accuracy and insightful learning. Our short videos, ranging from 30 seconds to a minute and a half, make complex subjects easy to grasp in no time. Covering everything from historical events to contemporary processes and entertainment, “The Knowledge” bridges the past with the present. In a world where information is abundant yet often misused, our series aims to guide you through the noise, preserving vital knowledge and truths that shape our lives today. Perfect for curious minds eager to discover the ‘why’ and ‘how’ of everything around us. Subscribe and join in as we explore the facts that matter. https://stmdailynews.com/the-knowledge/
Author
Discover more from Daily News
Subscribe to get the latest posts sent to your email.
