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Tuesday, 6 December 2016

Should I not buy xiaomi redmi note 3, because of high SAR value?


I came to know about SAR (Specific absorption rate ) value of Xiaomi redmi note 3, being 1.6 (MAX) W/kg and 1.25 (10 mm distance) W/kg on 1g tissue.
Are these value indicative of harmful radiation that will flow though your body if you start talking on phone, longer? Is it safer to buy such phone ?





Mobile phone SAR testing
When measuring the SAR due to a mobile phone the phone is placed at the head in a talk position. The SAR value is then measured at the location that has the highest absorption rate in the entire head, which in the case of a mobile phone is often as close to the phone's antenna as possible. Various governments have defined maximum SAR levels for RF energy emitted by mobile devices:
·
United States: the FCC requires that phones sold have a SAR level at or below 1.6 watts per kilogram (W/kg) taken over the volume containing a mass of 1 gram of tissue that is absorbing the most signal.
·
European union: CENELEC specify SAR limits within the EU, following IEC standards. For mobile phones, and other such hand-held devices, the SAR limit is 2 W/kg averaged over the 10 g of tissue absorbing the most signal
·
India: switched from the EU limits to the US limits for mobile handsets in 2012. Unlike the US, India will not rely solely on SAR measurements provided by manufacturers; random compliance tests are done by a government-run Telecomm Enginnering Center (TEC) SAR Laboratory on handsets and 10% of towers. All handsets must have a hands free mode.
SAR values are heavily dependent on the size of the averaging volume. Without information about the averaging volume used, comparisons between different measurements cannot be made. Thus, the European 10-gram ratings should be compared among themselves, and the American 1-gram ratings should only be compared among themselves.





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