AboutMark C J Posen Expertise I am happy to answer questions of a technical and regulatory nature in the area of radiocommunications and satellite communications. I am best able to answer questions about systems and technology and less able to respond to questions about specific hardware and equipment setup and installation, but I'm happy to try and address any question put my way.
My main areas of expertise are link analysis (link budgets, performance, Eb/No, capacity), interference analysis (C/I, protection ratios, interference avoidance), spectrum management (frequency coordination, inter-system sharing), Radio Regulation (ITU, ITU-R) and radio and satellite technologies and trends.
Experience I have worked as a radio and satellite communications engineer at a professional level since 1983. Since 1990, as Managing Director of RPC Telecommunications Limited, I have operated a private satellite and radio communications consultancy and have provided technical support to many satellite operators and national governments.
Organizations IET - Institution of Engineering and Technology
IEEE - Institute of Electrical and Electronic Engineers
Hi how ru ? I live in India . I have a querry regarding hazards of radiation
Of cellphone over human body .
In India there are a lot of network operators availables like GSM , GPRS . CDMA WI FI .NTT DOCOMO .
I have two question
(1) which network is safe not only to the Specific Absorption Rate (SAR) but also to the total energy absorbed by the tissue (SA) .?
(2) Is it true that GPRS ENABLE MOBILE PHONE have more radiation hazard .?
No need to reply soon.first you consult and satisfied with your studies . and then give me reply.
Sincerely
Abhijeet jain
Answer Hello,
Many thanks for this question.
Unfortunately, because this is a health and safety issue I'm not going to be able to comment personally on the safety or otherwise of these technologies because I don't have the necessary medical knowledge to make a judgement myself.
However, I would like to refer you to the April 2008 statement of the International Commission on Non-Ionizing Radiation Protection (ICNIRP) in which they review all the different wireless technologies and assess the latest state of knowledge and research about the health implications of each. The statement is available here: http://www.icnirp.de/documents/NewTech.pdf and I hope that you find it useful.
I am sorry that this is not as comprehensive an answer as you were hoping for, but I think that it is the best that I can offer you under the circumstances.
I have changed this to a public answer because, as I indicate in my profile here, I do not answer private questions, so that other users of the site can benefit from answers given.
I hope this helps. Please remember to rate this answer.
