Kyle:
Take a look at www.Intellon.com . They detail a link to some of the
problems associated with proximity of Bluetooth devices to 802.11 LAN
specs. These are claimed to be potential interference problems related to
hop frequency differences in the two spread spectrum systems.
There is also concern with the power line conducted control systems and the
Continental Automated Building Associated attempted to address some of the
issues related to compatibility during their conference held at the end of
May. There are some 26 different standards all independantly developed
which I'm sure is enough for a statistical study of the problem.
There have been several papers on lack of EMC in hospitals - some
originating from McGill University in Montreal. The main problem there seems
to be lack of any emc equipment requirements ( although changing due to
liability ) and the solution has been to isolate the areas containing the
radio sensitive equipment.
Tha Radio Advisory Board of Canada's EMC sub committee did address some
concerns toward cable TV radiation and possible effects on some aircraft
frequencies. With those problems largely overcome by regulating the cable
operators , another issue has arisen and that could affect radio aids to
navigation and it may have to do with radiation from home wiring above 2Mhz
.. This is conceivable with ever increasing data rates and unshielded wiring.
When I was chairman of the RABC EMC committee for a couple of years, there
were many instances of life threatening incidences related to lack of EMC.
Ralph Cameron
Electromagnetic Compatibiliy Consulting and Suppression of Consumer
Electronics
( after sale)
- Original Message -
From: kyle_cr...@dell.com
To: emc-p...@majordomo.ieee.org
Sent: Monday, June 11, 2001 5:23 PM
Subject: Wireless Network Issues
Hi All,
I am currently researching wireless intereference issues for a
project and I was wondering if anyone could answer a few of my questions.
First off, any links to information that deals directly with wireless
interference on airplanes or in hospitals would be appreciated. Secondly,
I
am curious how similar cell phone wireless technology is to wireless
network
technology(Wi-FI), from an EMI standpoint. The reason I ask is that I can
find a lot of information about cell phone intereference, but I have found
nothing about wireless network interference. I am still learning a lot
about this, so any information that you could provide would be
appreciated.
Thanks,
Kyle
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