Last month, the U.S. House passed the AM Radio for Every Vehicle Act, reports the Chicago Sun-Times. They call it "a bipartisan effort to require AM radio in new vehicles," adding that the bill now "awaits action in the Senate, where a companion measure has already garnered support, according to public records." Broadcasters said AM radio remains a critical source of information, offering news and weather alerts, particularly when cell networks and internet service are disrupted or unreliable... "AM radio — all radio — has always been about connection, and in Chicago, especially, the connection is incredibly strong," Mary Sandberg Boyle, vice president and general manager of WGN-AM 720, said. "You don't need a subscription. You don't need a data plan or an app. You turn on the radio, and it's there..." Boyle said the accessibility of radio becomes especially important during severe weather and breaking news situations. "That's when local radio is really more important because we have the ability to stay live, pivot our content and what we're covering, and we can access a large amount of audience members very quickly and keep everybody safe," she said. Boyle also serves on the board of directors of the National Association of Broadcasters, which has argued that preserving AM radio access is an access issue rather than a matter of nostalgia. The legislation emerged after several automakers removed AM radio from certain electric vehicle models, citing interference from electric power systems. Companies including Tesla, Rivian, Volvo and others have either eliminated or limited AM radio in some EVs. The Alliance for Automotive Innovation, which represents most major automakers, has opposed the requirement. In congressional testimony last year, President and CEO John Bozzella argued that "analog AM radio does not contribute to motor vehicle safety" and requiring it as standard equipment "is not necessary to ensure public safety." Under the bill, the U.S. Department of Transportation would be required to develop regulations ensuring AM radio remains available in new vehicles sold in the U.S. The measure would also bar automakers from charging consumers separately for AM radio access... While public discussion around the legislation has largely focused on emergency alerts and news access, some scholars say preserving AM radio also has implications for media diversity... "I think the media landscape is really overwhelmingly homogenized right now, and AM radio is important in many markets," [said Zachary McDowell, associate professor of communications at the University of Illinois Chicago]. "It's a space that still allows for all sorts of different voices that is still open and accessible." The article also includes this quote from Rodney Gibbs, executive director of Heartland Signal, which operates a local talk radio station. "Despite the kind of shiny objects that digital media is, AM radio still has a viable and durable audience. It's a daily, unscripted, authentic conversation between the host and the listeners. You don't get that from broadcast television. You don't get that from digital media."

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Privée de l’accès aux terminaux Starlink qu’elle utilisait illégalement sur le front ukrainien, la Russie accélère le déploiement de Rassvet. Cette constellation de satellites permettra aux régions isolées d’accéder à Internet. Mais elle a surtout pour objectif d’offrir à l’armée russe une autonomie devenue vitale dans la guerre des drones.

© PHOTO BUREAU 1440/RBC

ScienceDaily reports: A microchip about the size of a grain of rice can generate a highly organized "rainbow" of light, a capability that could eventually support faster, higher-capacity 6G communications and extremely precise timing for quantum technologies. Physicists at Loughborough University, working with an international research team, demonstrated a system that produces a series of precisely spaced light frequencies. Those optical frequencies can then be converted into multiple high-frequency electromagnetic signals known as millimeter waves. Millimeter waves are attracting growing interest for future communications because they can provide considerably more bandwidth, giving networks more room to transmit data. A major obstacle, however, has been producing these signals with the precision and stability required for advanced applications... "They could ultimately contribute to faster, higher capacity 6G networks," [said Dr. Luke Peters, of Loughborough University's Emergent Photonics Research Centre], "but the potential goes far beyond communications. These frequencies could also be used in radar systems as well as spectroscopy and astronomical instruments, helping scientists study materials and make extremely precise measurements of the universe. "These applications are still some way off, and there are challenges to overcome before the technology can be used in real-world systems — but our latest work has tackled a major one..." A microcomb generates an extremely precise set of light frequencies arranged somewhat like the colors in a rainbow, although the light itself is invisible to the human eye. A specialized antenna can then convert those optical frequencies into millimeter waves. Earlier research demonstrated that microcombs could produce a single precise millimeter wave frequency. Generating many frequencies simultaneously could be far more useful because each could potentially serve as a separate channel for transmitting information at the same time. Achieving that, however, requires a microcomb with exceptional stability and signal quality. In a new Nature Communications paper, the Loughborough led researchers report a system capable of doing exactly that. Their system connects its chip-based microresonator to a much larger loop of optical fiber where laser light continuously travels through both parts of the system, according to the article. "The team is now investigating how the microcomb system could eventually move from a laboratory experiment into practical technology."

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