And, why wouldn’t the standard simply provide limits for peak detection and for average detection? Why the special treatment for DTS I wonder.
Ralph McDiarmid Product Compliance Engineering Solar Business Schneider Electric From: John Woodgate [mailto:jmw1...@btinternet.com] Sent: Wednesday, April 26, 2017 1:25 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] FCC DTS Measurement Procedure - FCC KDB 558074 - Radiated Spurious Emission For a continuous DTS, aren't peak and RMS equal? With best wishes DESIGN IT IN! OOO – Own Opinions Only http://www.jmwa.demon.co.uk/ J M Woodgate and Associates Rayleigh England Sylvae in aeternum manent. From: Grace Lin [mailto:graceli...@gmail.com] Sent: Wednesday, 26 April 2017 21:11 To: mailto:EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] FCC DTS Measurement Procedure - FCC KDB 558074 - Radiated Spurious Emission Dear Members, Please find the following responses from FCC and ISED for your reference. FCC: "A RMS detector must be used." ISED: " This would be acceptable with ISED if the duty cycle is inherent characteristic to the fundamental emission and is constant in the live network. If the duty cycle in a live network is variable then this would not be an acceptable method as the true duty cycle could not be determined. " Thank you very much! Best regards, Grace Lin On Mon, Apr 24, 2017 at 5:25 PM, Grace Lin <mailto:graceli...@gmail.com> wrote: Dear Members, For digital transmission system (DTS), is it acceptable for radiated emission measurement (EUT is configured to transmit continuously) taken with Peak detector for peak data and use duty cycle correction factor (DCCF) to obtain average data (instead of using RMS detector to obtain average data)? Thank you very much for your time and we look forward to your guidance. Best regards, Grace Lin - ---------------------------------------------------------------- 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 <emc-p...@ieee.org> 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 <sdoug...@ieee.org> Mike Cantwell <mcantw...@ieee.org> For policy questions, send mail to: Jim Bacher: <j.bac...@ieee.org> David Heald: <dhe...@gmail.com>
