Brian I have experienced two microwave production systems. Shielding helped a little, however, because product had to pass through it was not possible to completely mitigate the EMI and the situation was very difficult.
In your case it is from commercial microwave ovens. The biggest source of emissions from these is the door. A new oven would help. If the door is in anyway loose they leak quite heavily. Shielding around the door would help. John McAuley www.cei.ie [email protected] ***************************************************************** DISCLAIMER: The information contained in this e-mail may be confidential and is intended solely for the use of the named addressee. Access, copying or re-use of the e-mail or any information contained therein by any other person is not authorised. If you are not the intended recipient please notify us immediately by returning the e-mail to the originator ________________________________ From: [email protected] [mailto:[email protected]] On Behalf Of Kunde, Brian Sent: 06 October 2008 20:55 To: emc-pstc Subject: Microwave Oven Interference with 2.4Ghz Wireless LAN I have just received and interesting call from our IT guys in our production facility. They have installed a 2.4Ghz wireless LAN system in our production and stock room areas, which is a huge area, and which includes 13 Access Points and a couple dozen wireless devices such as bar code readers, computers, and printers. They discovered that they are having a major interference problem which they have narrowed down to the Microwave Ovens in the two break areas. Evidently, Microwave Ovens run at 2.45Ghz. It would be very difficult to remove the ovens or to move the break areas. Have any of you experts have experience with this issue? Any suggestions? Are new ovens better then older ones? Are the microwave ovens that run at a different frequency? Would it help to try and shield the ovens better? Please help. The Other Brian LECO Corporation Notice: This communication may contain confidential information intended for the named recipient(s) only. If you received this by mistake, please destroy it and notify us of the error. Thank you. - 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
