Ged, I think this is one of those situations where the answer is somewhere in
between. Yes registration can take less than a second. There are also lots of
processes, like receiving a text message, that can take longer. The
information is bursted and there is a lot of effort to minimize transmission
length and power level to reduce exposure and extend battery life. As you
observed it's still in seconds.
Fred Townsend
Dean Gerard (Medical Physics) wrote:
Is it really only milliseconds? When my phone is in my desk drawer, or
jacket pocket on the back of my chair, I am aware that it is periodically
active because of interference it generates on the speakers of my PC. These
bursts of audible interference are brief - but measurable in seconds rather
than milliseconds.
Ged Dean
________________________________
From: dBaron [mailto:[email protected]]
Sent: Wednesday, July 30, 2008 12:00 PM
To: Tang, George; 'Monrad Monsen'
Cc: [email protected]
Subject: RE: Another Cancer Scare?
Sir:
The intermittent, registration communications between a mobile phone
and its
base station are milliseconds in duration at intervals of 5-10 minutes;
minimal exposures.
Regards,
Dave Baron, PE
Consulting Engineer
Electromagnetic Field Safety
Austin, TX
Voice: 512 917-8346
Fax: 206 203-0605
________________________________
The information contained in this email may be the subject of public
disclosure under the
Freedom of Information Act 2000 - unless legally exempt from
disclosure, the
confidentiality of this email and your reply cannot be guaranteed.
Copyright of this email and any attachments created by us remains
vested in
the
Nottingham University Hospitals NHS Trust.
This email and any files transmitted with it are confidential and
intended
solely for
the use of the individual or entity to whom they are addressed.
This footnote also confirms that this email message has been swept by
security software for the presence of known computer viruses.
Nottingham University Hospitals NHS Trust
City Hospital campus | Hucknall Road | Nottingham | NG5 1PB | Tel: 0115
969
1169
QMC campus | Derby Road | Nottingham | NG7 2UH | Tel: 0115 924 9924
If you have received this email in error please notify the sender.
________________________________
ID:QMCICT1 - B48997d7b0000.000000000001.0001.mml - 11:31:23 08/06/08 -
---------------------------------------------------------------- This message
is from the IEEE Product Safety Engineering Society emc-pstc discussion list.
Website: http://www.ieee-pses.org/
To post a message to the list, send your e-mail to [email protected]
Instructions: http://listserv.ieee.org/request/user-guide.html
List rules: http://www.ieee-pses.org/listrules.html
For help, send mail to the list administrators:
Scott Douglas [email protected] Mike Cantwell [email protected]
For policy questions, send mail to:
Jim Bacher: [email protected] David Heald: [email protected]
All emc-pstc postings are archived and searchable on the web at:
http://www.ieeecommunities.org/emc-pstc
- ---------------------------------------------------------------- This
message is from the IEEE Product Safety Engineering Society emc-pstc
discussion list. Website: http://www.ieee-pses.org/
To post a message to the list, send your e-mail to [email protected]
Instructions: http://listserv.ieee.org/request/user-guide.html
List rules: http://www.ieee-pses.org/listrules.html
For help, send mail to the list administrators:
Scott Douglas [email protected] Mike Cantwell [email protected]
For policy questions, send mail to:
Jim Bacher: [email protected] David Heald: [email protected]
All emc-pstc postings are archived and searchable on the web at:
http://www.ieeecommunities.org/emc-pstc
