“The faces of blanket WiFi in Canada”, article in the Hub Canada, reported that so many cities want to get blanket wireless internet access in Canada. It is not free, but easy to access. Thinking about the WiFi plan in San Francisco, which is provided by Google and Earthlink. ThisContinue Reading

So many wireless equipments are around us, cellphones, WiFi/AirPort computer networking, Bluetooth keyboards and mice. I know basicly the vendors have tested the EMF (electric and magnetic fields) exposure before their products go into the store. They always say it doesn’t pose a health risk. I trust the test isContinue Reading

Now more and more network build by wireless equipments. There are still something concern. 1) What is the range of wireless? Types of Wi-Fi Network Protocol Maximum Speed Average Speed Wireless Range 802.11a 54Mbps 27Mbps 12m indoors, 30m line-of-sight outdoors 802.11b 11Mbps 4.5Mbps 30m indoors, 120m line-of-sight outdoors 802.11g 54MbpsContinue Reading