Cell phones hinder eavesdropping

date of publication:
Jul 03 2022 14:55 GMT

Update date: Jul 03 2022 16:20 GMT

American astronomer Dan Wertheimer spent more than four decades trying to eavesdrop on space sounds and signals after developing a technology called SETI.

Wertheimer’s work involves scanning the universe with huge ground-based radio telescopes to look for strange or unexplained signals that may have originated from alien civilizations.

“If it sounds like looking for a needle in a haystack, it’s because it is to some extent,” Wertheimer, chief astronomer at the Berkeley City Research Center, told NBC News.

He added, “But in recent years, the search for extraterrestrial intelligence has become more complex, as the increasing demand for mobile phone services and wireless internet has congested the radio spectrum, causing interference that can distort data significantly, and add noise to the results. Scientific.”

Earth pollution

And Wertheimer explained that the earth is getting “more and more polluted,” adding that “with some radio bands, it is actually impossible to use Citi technology, because it is so full of TV transmitters, Wi-Fi networks and mobile phone bands.”

He pointed out that as wireless technologies continue to grow, the problem will only get worse, which could jeopardize one of the main ways that scientists should search for intelligent life in the universe.

The network noted that Wertheimer is one of the authors of an as yet unpublished study of Chinese researchers who identified a radio signal that several news outlets mistakenly reported as having the characteristics of a strange civilization, adding that Wertheimer explained that the signal was found to be radio interference.

Citi’s focused research began in earnest in the 1980s, and was cemented into popular culture by Carl Sagan’s 1985 novel “Contact,” which was later adapted into a film in 1997 starring Jodie Foster.

satellite signals

In essence, Citi’s research aims to answer the question: Are we alone in the universe? In the decades since scientists first began listening to space signals, Wertheimer said, improvements in telescope technology and data processing have greatly boosted the research.

He added, “We used to listen to one channel, and now we listen to 10 billion channels… Technology and science are constantly improving.”

However, these leaps in technology have come with their share of challenges, as more satellites are launched into low Earth orbit than ever before as a result of lower launch costs and cheaper materials to build spacecraft.

And she continued, “The society’s growing reliance on wireless internet and the Global Positioning System (GPS), also means more competition for radio frequencies.”

The network quoted Paul Horowitz, professor of physics and electrical engineering at Harvard University in the United States, as saying that “a spectrum of great value and people want more and more of it for daily activities… All this means that the radio spectrum is in a state of chaos these days.”

For Citi scientists, having relatively clear and barrier-free channels for scanning the universe is invaluable, noting that errant human intervention not only leads to more effort for researchers, but can provide increasingly false signals.

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