Re: ARLA/CLUSTER: Teste de exposição a radiofrequência indica que o iPhone 11 Pro excede o limite definido da FCC

[ct1euo sapo.pt]

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Enviado da aplicação Outlook Email App para Android quarta-feira, 19 fevereiro 2020, 01:53da tarde +00:00 de João Costa > CT1FBF  ct1fbf  gmail.com :

>Radio frequency exposure test finds an iPhone 11 Pro exceeds the FCC's limit
>
>A test by Penumbra Brands to measure how much radiofrequency energy an
>iPhone 11 Pro gives off found that the phone emits more than twice the
>amount allowable by the U.S. Federal Communications Commission.
>
>The FCC measures exposure to RF energy as the amount of wireless power
>a person absorbs for each kilogram of their body. The agency calls
>this the specific absorption rate, or SAR. For a cellphone, the FCC's
>threshold of safe exposure is 1.6 watts per kilogram. Penumbra's test
>found that an iPhone 11 Pro emitted 3.8 W/kg.
>
>Ryan McCaughey, Penumbra's chief technology officer, said the test was
>a follow up to an investigation conducted by the Chicago Tribune last
>year. The Tribune tested several generations of Apple, Samsung, and
>Motorola phones, and found that many exceeded the FCC's limit.
>Penumbra used RF Exposure Labs, an independent, accredited SAR testing
>lab for the tests (The Tribune also used the San Diego-based lab for
>its investigation). Penumbra was conducting the test, which also
>included testing an iPhone 7, to study its Alara phone cases, which
>the company says are designed to reduce RF exposure in a person.
>
>It's worth noting that when the FCC conducted a follow-up
>investigation they did not find evidence that any of the phones exceed
>SAR limits. "That said, while the Tribune and Penumbra both used
>off-the-shelf phones, the FCC largely tested phones supplied by the
>manufacturers, including Apple," adds IEEE Spectrum.
>
>Joel Moskowitz, a researcher at UC Berkeley, says that could be
>because there's a systematic problem with RF Exposure Lab's testing
>methods, or Apple rigged the software in the provided test phones to
>ensure they didn't put out enough power to exceed the SAR limit.
>Either way, both McCaughey and Moskowitz agree that the FCC's RF
>exposure testing is woefully out of date, as the limits reflect what
>the FCC deemed safe 25 years ago.
>
>Read the IEEE Spectrum report:
>https://spectrum.ieee.org/tech-talk/telecom/wireless/radio-frequency-exposure-test-iphone-11-pro-double-fcc-limits
>
>• Our thanks to Stephen, G7VFY for spotting this item
>
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