Is RF signal from cell phone, really a threat?
The theory behind RF signal and its side effects on human brain has long been debated. This information is straight out of Food and Drug Administrations (FDA)’s website. The FDA , does not have a program to qualify cell phone equipments to sell in United states. However, the FDA can step in and take action if a device is reported or found to emit excessive RF radiations. Now, what is a safe level of radiation and what is excessive depends on the prism that one would look through .
Few agency’s that FDA works with in this matter are :
* National Institute for Occupational Safety and Health
* Environmental Protection Agency
* Federal Communications Commission
* Occupational Safety and Health Administration
* National Telecommunications and Information Administration
The Federal communications commission (FCC), is the agency that dictates the standards and qualifies a device for sale in the market. Against the conventional thinking, RF signal from the cell phone tower is not a real threat because the effects of RF radiation decreases with distance from where they are generated and the cell phone dish gets installed on high towers. The RF radiation is measured in terms of Specific Absorption Rate (SAR) . In the United States the allowed SAR value is 1.6 W/Kg , which is the measure of permitted RF radiation level in cell phones.
GSM phone’s like T-mobile, AT&T can emit SAR up to 2 Watts
Analog Phones can emit SAR up to 3.6 Watts
CDMA phones emit SAR, very less in the neighborhood of 1 Watt
All these above levels are not as harmful when matched with the allowed value of SAR. Your phone in general will emit less RF when operating in optimal conditions, i.e when it has good signal strength. Its only when the signal strength falls below an optimal operating condition the phone begins to emit more RF radiation. In this case phone is working hard to keep the signal strength up to maintain the same level of audibility. However, the phone would not have to work as hard, if the signal it receives is amplified using cell phone amplifier.This also puts less strain on your phone batterty and make them last longer before the next recharge.
Even though the evidence that RF radiation from cell phone causes Brain tumor have not been proven , its better to err on the side of caution. The bottom line is that having more bars in your phone is a good thing for the phone and you!
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