Wendy PTCRB Radiated Spurious Emissions requirements are Power not Field Strength.
Whilst 40.4dBuV/m equates to -54.9dBm EIRP / -57dBm ERP at 3m, RSE chambers must be calibrated using antenna substitution method rather than by converting field strengths, so the lab should not be doing RSE measurements and applying Field Strength limits. It looks like your product is well below the -30dBm limit, but you should have it measured properly. Regards Charlie -----Original Message----- From: WNya [mailto:[email protected]] Sent: 02 May 2012 06:47 To: [email protected] Subject: [PSES] PTCRB RE limits Dear Experts, I'm trying to find out the Radiated Emission limits for PTCRB certification. I received a test lab raw data that states 40.4dBuV/m from 30MHz to 1GHz at 3m distance. If you know the limits, please let me know. Thanks. Sent from Wendy.Nya iPhone - ---------------------------------------------------------------- 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://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]> - ---------------------------------------------------------------- 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://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]>
