cell phone heat build-up
Category: Science > Technology
Asked by: zenmaster-ga
List Price: $5.00
14 Sep 2002 13:59 PDT
Expires: 14 Oct 2002 13:59 PDT
Question ID: 65084
I use a Nokia 5165 cell phone with AT&T service solely (no land line). My phone heats up once Im on a call for maybe 20 minutes. It has analog and digital capability and it is my understanding that during most of my calls digital technology is used, although usually my calls lasting over 20 minutes are long distance from the west coast to the east coast of the US. It is also my understanding after talking to others, though I could be wrong, that many other cell phones do not heat up like mine. Question: Does the heat accumulation of my phone indicate a significant risk of radiation exposure beyond most other cell phones and service, or considering my calling pattern, would most other cell phones on the market accumulate heat the way mine does? I dont necessarily need statistics, just informed opinions. Thanks very much.
Re: cell phone heat build-up
Answered By: lot-ga on 14 Sep 2002 15:01 PDT
Hello zenmaster-ga I have had 8 mobile phones and they all heat up during long conversations, some more than others. An Ericsson T10s running almost hot enough to fry an egg on the earpiece. The radiation risk is not really related to the heat generated. I have two brands of land line wireless DECT phones which can get warm on long conversations. Landline DECT phones do not have the high levels of radiation associated with mobile cell phones. To base the level of radiation on the heat generated by the electronics / battery would be inaccurate. There is an industry standard 'SAR figure' to measure the radiation from phones. Excerpt from from a mobile phone health guide: "Specific Absorption Rate (SAR) Human exposure levels to mobile phones are measured by testing the Specific Absorption Rate, referred to as the SAR.The SAR measures how much energy is absorbed into the body. For the latest SAR values, please click on www.mmfai.org " "Mobile Phones and Health" The Carphone Warehouse 2002 http://www3.carphonewarehouse.com/commerce/servlet/gben-knowledgebase-Show?ARTICLE=HEALTH.HEALTH This guide is published by a cell phone retailer and highlights the current research into mobile phone safety - it may be slightly biased but is reference material. - As to the actual SAR figure for the Nokia 5165 it is 1.46 (in digital mode) which is relatively highish, almost 4x the radiation from an Alcatel Club series which are rated at 0.38 SAR figures for some popular phones can be found here Cellular News http://www.cellular-news.com/cell-phones/sar-ratings.php and here CNet Wireless http://www.cnet.com/wireless/0-5939521-7-6227090.html?tag=txt - As to the penetration of the radiation, the UK's ITV 'Tonight' documentary programme highlighted a scientist's findings. Particularly alarming is the radiation penetration to the thinner skull of a child, allowing far more radiation into the brain and face areas. http://www.webxon.ukshells.co.uk/all.jpg - In summary I'd say referencing the SAR figures is a much more accurate way to determine the phone's radiation than the heat it generates. Search Strategy: SAR Nokia 5165 ://www.google.com/search?hl=en&lr=&ie=ISO-8859-1&newwindow=1&q=SAR+Nokia+5165&btnG=Google+Search and from bookmarks - I hope that helps, if you need any clarification on the answer just ask. Kind regards lot-ga
rated this answer:
I didn't rate the original answer - it was satisfactory or better. I just received a clarification though, and I really appreciate it. I haven't researched any further myself, but the new info that was sent is really what I wanted to find out and I thank lot-ga very much for following up. Peace.
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