DoT asks users to check SAR value of mobile before buying
| by tech2 News Staff |
Mobile phone users should check the SAR value of a mobile handset before purchase, the Department of Telecommunications (DoT) has stated, reports The Financial Express. In addition to this,.DoT has asked mobile phone manufacturers to mention the SAR value of every handset on their website as well, so users find it easier to make a purchase decision. DoT reportedly will be uploading the data on its website.
Users should check SAR value of mobile phone before purchase
These guidelines are in line with an earlier mention. In December last year, the government had declared that hands-free, which till then may have been just another accessory bundled up with a mobile phone, would soon be made mandatory to be provided with all mobile phones. The reason was that using hands-free, as opposed to answering calls the usual way, is being seen as an effective way of steering clear of radiation emissions. Switching over to SMS or other non-voice modes of communication too is preferable for evading radiation.
Further in its new guidelines, the government advises users to limit the length of their voice calls and resort to messaging instead. The guidelines suggest that if the user has a choice between making calls from a mobile phone and a landline, he or she should go for the latter. Mobile phone users should make calls from a location where the signal is strong. "If the radio signal is weak, a mobile phone will increase its transmission power. Find a strong signal and avoid movement, use your phone where reception is good," it added.
Among other guidelines, the government added that users should avoid making calls while wearing metal framed glasses or having wet hair, since metal and water are good conductors of radiowaves.
Importantly, the government also advised against carrying the mobile phone near the breast/ chest or inside pant pockets, since a cellphone "automatically transmits at high power every one or two minutes to check network".
In its advice to those with active medical implants, the government has added that they should preferably keep their cellphones at least 15 cm away from the implant.
Under these new norms, the Specific Absorption Rate (SAR) value has been brought down to a revised 1.6 watts per kilogram (W/kg) from the earlier 2 W/kg. The SAR essentially measures the rate at which the body absorbs energy when exposed to a radio frequency electromagnetic field or electronic devices using radio spectrum.
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