Dr. Girish Kumar Elucidates on Different WiFi Power Transmission Standards
"The Statement is not correct"
The statement is not correct, "There's no significant difference between Wi-Fi on or off"
There are three Wi-Fi power transmission standards, 10 mW, 100mW, and 1000mW = 1W. The lowest power transmitter of 10 mW has a limited range, which is within a room. 100mW is used generally in an apartment or office or schools. In a school, typically multiple units are used to cover the entire school. 1000mW is used to cover larger range.
Some details
can be seen at: http://en.wikipedia.org/wiki/
When Wi-Fi is turned "ON", there is definitely increase in the
transmitted power. May be, Karl Reardon, an engineer with Planetworks who
volunteered his time and equipment to test the schools, did not use
proper antenna or equipment to measure in the desired freq. band.
If you want, you can use a low cost radiation detector (price USD 99)
to measure radiation from cell tower, cell phone, Wi-Fi, etc. I have
attached its User-Guide.
With regards.
******************************
Girish Kumar
Professor, Electrical Engineering Department
I.I.T. Bombay, Powai, Mumbai - 400076, INDIA
Tel. - (022) 2576 7436, Fax - (022) 2572 3707
email- gkumar@ee.iitb.ac.in
Blog - http://profgirishkumar.blogspo
“Wi-Fi is not really an issue. There’s no significant difference between Wi-Fi on or off."
Karl Reardon, an engineer with Planetworks who volunteered his time and equipment to test the schools.
From: Michelle Khong
Sent: Wednesday, June 27, 2012 12:37 AM
CTV News on WiFi in Schools - please vote for poll and/or comment
Here is the link:
http://bc.ctvnews.ca/what-effe
Thank you!
There are three Wi-Fi power transmission standards, 10 mW, 100mW, and 1000mW = 1W. The lowest power transmitter of 10 mW has a limited range, which is within a room. 100mW is used generally in an apartment or office or schools. In a school, typically multiple units are used to cover the entire school. 1000mW is used to cover larger range.
Some details
can be seen at: http://en.wikipedia.org/wiki/
When Wi-Fi is turned "ON", there is definitely increase in the
transmitted power. May be, Karl Reardon, an engineer with Planetworks who
volunteered his time and equipment to test the schools, did not use
proper antenna or equipment to measure in the desired freq. band.
If you want, you can use a low cost radiation detector (price USD 99)
to measure radiation from cell tower, cell phone, Wi-Fi, etc. I have
attached its User-Guide.
With regards.
******************************
Girish Kumar
Professor, Electrical Engineering Department
I.I.T. Bombay, Powai, Mumbai - 400076, INDIA
Tel. - (022) 2576 7436, Fax - (022) 2572 3707
email- gkumar@ee.iitb.ac.in
Blog - http://profgirishkumar.blogspo
************************************************************ **********
“Wi-Fi is not really an issue. There’s no significant difference between Wi-Fi on or off."
Karl Reardon, an engineer with Planetworks who volunteered his time and equipment to test the schools.
From: Michelle Khong
Sent: Wednesday, June 27, 2012 12:37 AM
CTV News on WiFi in Schools - please vote for poll and/or comment
Here is the link:
http://bc.ctvnews.ca/what-effe
Thank you!
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