Page 250 - CITS - Electronic Mechanic - TT - 2024

ELECTRONICS MECHANIC - CITS

appearance can spoil an otherwise great shot especially when you revisit the image later. Although this issue is
less common nowadays due to improved camera technology it can still pop up in specific lighting situations.
Study various radiation levels of smartphone.
Radiation Emissions of Popular Smartphones:

Smartphones have become an integral part of our everyday lives. From work and school to daily tasks, these
handheld devices have brought everything into the palm of our hands.
Most people spend 5-6 hours on their phones each day. And, given that our phones emit a tiny amount of
radiation, we’re exposing ourselves to radiation for hours each day.
But different phones emit different amounts of radiation.
Radiation and SAR Values of Smartphones:
Smartphones and other mobile devices emit tiny amounts of radiofrequency (RF) radiation. Humans can absorb
this radiation when the smartphone is being used or is lying dormant anywhere near their bodies.
The parameter used to measure phone radiation emissions is the Specific Absorption Rate (SAR). It is the unit of
measurement that represents the quantity of electromagnetic energy absorbed by the body when using a mobile
device.
The Council of the European Union has set radiation standards for cell phones at 2 watts per kilogram, measured
over the 10 grams of tissue that is absorbing the most signal.
SAR values are calculated at the ear (speaking on the phone) and at the body (kept in your pocket). For the
purposes of this article, we’ve used the former calculations.
Smartphones With the Highest Levels of Radiation Emissions:
The Motorola Edge has the highest radiation emission with a SAR value of 1.79 watts of radiation per kilogram.
That’s significantly higher than most other smartphone models in the market today and close to the limits set by
the EU for cellphones.

Coming in second is the Axon 11 5G by ZTE with 1.59, followed by the OnePlus 6T at a close third with 1.55 W/
kg. The Sony Experia AX2 Plus with 1.41 and the Google Pixel 3 XL and 3A XL at 1.39 round out the top five.
Smartphones With the Lowest Levels of Radiation Emissions:
The smartphone with the lowest SAR value is the ZTE Blade V10, with 0.13 watts of radiation per kilogram.
Mobile devices by Samsung carry some of the least radiation risks. The company has four phones considered to
be the best in the category. The Galaxy Note 10+ is the best model in their line-up, emitting a meager 0.19 watts
per kilogram.
Study compliance standards for mobile phones in india.
BIS Standards for Mobile Devices:
Smartphones are an essential part of everyone’s lives, and life would be much harder without them. More than 4
million people in India use smartphones, and in order to sell the product freely, one must obtain the BIS certificate
for Smart Phone Import. All smartphones have been registered under Indian Standard IS 13252’s BIS CRS
Registration Scheme (Part 1). This product cannot be imported into or marketed in the Indian consumer market
without a BIS Registration.
Characteristics for BIS Certification for Mobiles:
The following are the few characteristics of BIS Certification for Mobile:
1 Manufacturer:
The manufacturer of the applied product is the sole party eligible for a BIS license. The license is not available to
traders, retailers, or other licensees. If the manufacturer doesn’t have a liaison office in India, they can nonetheless
represent them there. However, the maker is the only one whose name is on the license.
2 Manufacturer Address:
The manufacturer is given a license for a specific site address. A new license must be requested whenever the
manufacturer’s address changes. Alternatively, different licenses are requested through BIS if the company uses
more than one manufacturing address to produce the same product.

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CITS : E & H - Electronics Mechanic - Lesson 130 - 145