Wired headsets and microphones connected to a product, often acts as receiver for induced RF fields. That means you quite often hear the 1kHz modulation tone under the RF immunity tests. This is quite annoying for the user and above a certain level, not acceptable.
To avoid such phenomena is quite a big task to conduct. But have anyone of you any experience how to determine if the headsets / microphones or the connected final product is the source to this problem? 3rd. party headsets / microphones have of course different RF immunity performance, and after a lot of testing, you might be able to find headsets / microphones that are does not pick up fields and the hearing audio noise level is acceptable. I assume that the final product may have great level of immunity, but as long the headsets / microphones has poor immunity level, you will have this audio problem anyway. Has anyone been into this problem before? BR Amund - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <[email protected]> All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. Website: http://www.ieee-pses.org/ Instructions: http://www.ieee-pses.org/list.html (including how to unsubscribe) 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]>
