tawkon droidcon nl - nov-2011

tawkon proprietary and confidential Amit Lubovsky, Co-Founder tawkon amit@tawkon.com @amitlubovsky

“Mobile Phone Radiation”

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Mobile Phone Radiation

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Mobile Phones – Basic Facts Electromagnetic Radiation

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Typical Transmission Power Values

dBm level Power Notes

60 dBm 1 kW = 1000 W Typical RF power of microwave oven elements 33 dBm 2 W Maximum output from a UMTS/3G mobile phone

Maximum output from a GSM850/900 mobile phone

30 dBm 1 W = 1000 mW Maximum output from a GSM1800/1900 mobile phone

15 dBm 32 mW Typical WiFi transmission power in laptops. 0 dBm 1.0 mW Bluetooth standard radio, 1 m range −10 dBm 100 µW Typical maximum received signal power (−10 to −30 dBm) of

wireless network

Typical Transmission Power Values

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Exposure measurements

•  Electromagnetic radiation (W) that is absorbed by

the human body (kg) •  1.6 W/kg (ICNIRP, adopted 1996) •  Determined using  a human head "phantom” •  SAR is a "worst-case" scenario •  Lower SAR = less exposure

SAR

Specific Absorption Rate

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Cellular: 1.19

Cellular: 1.39

Cellular: 0.58

0.52

0.12

0.08

1.19 1.39

0.58

SAR Diversity

Wi-Fi: 0.52

Wi-Fi: 0.12

Wi-Fi: 0.08

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Interphone (WHO)

•  Published June 2010 - 13 countries, 10 years

•  Mobile phone usage of >30 minutes a day for 10 years (“heavy users”) have a greater risk of developing brain cancer (40% - 200%)

Research

Cosmos

•  World Health Organization (WHO) and the UK Health Protection Agency (HPA)

•  Started 2010, will follow ~300,000 adult cell phone users in Europe for 20 to 30 years

Mobi-Kids

•  International multi-center study involving 14 European and non-European countries •  Exposure to cell phone radiation (and other RF sources) and brain cancer in young people

•  Started 2010, ages 10 to 24 years

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WHO Announcement – May 31st 2011

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Exposure Measurement

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Source: EWG (Environmental Working Group)

Exposure measurements Precautionary Measures

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Drive Safely Eat Wisely Talk Responsibly

tawkon is a unique approach to handling public concerns

of mobile radiation

reduce exposure… without reducing usage

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Over 90% of the time, radiation exposure is low

“the concept”

Less than 10% of the time, radiation exposure is high

1 min in “red” equals 5 hours in “green”

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How does it work…?

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How it all started

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Let People See Radiation

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Apple…

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Pre Call

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Take Action

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Avoid Cumulative Exposure

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Help Others

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