Hi John et al,
Well the switch-on/switch off effects are wideband, but are time domain limited (transients), and do not have a great impact on network transmission capacities. My point is that the lack of available license free frequencies have lead to excessive use of this small band (2400-2485 MHz) not taking into account the interference properties of the original application for microwaves. (That is why ITU reserved this slot in the first place as ISM). The small bandwidth has also lead to the problem of useable channel allocations for wireless lan ( 1,6,11 of ther available 1-14) and the limited number of on-the-air networks in one areas to be only 3. At my daughters study place, a room in a popular neighbourhood in Utrecht a network scan learns me that there are 17 wireless LANS in the (close) neighbourhood. (most allocated to channel 11) I would not be surprised to find 17 microwave ovens also. No wonder that she has frequent internet connection problems. Regards, Ing. Gert Gremmen ce-test, qualified testing bv - ---------------------------------------------------------------- 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 emc-p...@ieee.org 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 emcp...@ptcnh.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher: j.bac...@ieee.org David Heald: emc-p...@daveheald.com All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
