It seems that there is a potential conflict between CISPR 32 and ANSI C63.4 with respect to AE/support equipment. CISPR 32, as I remember, specifically says to minimize the emissions from the AE/support equipment while C63.4 does have the support equipment in the test environment. Ghery Pettit is more qualified to comment, but I believe there is work going on to reconcile the two.
Brent DeWitt, AB1LF Milford, MA -----Original Message----- From: Ken Javor [mailto:ken.ja...@emccompliance.com] Sent: Thursday, January 12, 2017 7:20 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] lowest emissions 4k TV? Not proffering a solution here, but the amount of traffic on this topic has surprised me. Back in the day when most testing was on an OATS, I would have understood the concerns expressed, but nowadays most testing is performed in a SAC simulating an OATS. With the latter it is simple to use any off-the-shelf device in an external chamber just as the appropriate load interface for the test sample, and provide filtering external to the chamber necessary to clean up any emissions that could pollute the test chamber ambient. With a shielded cable, it might be as simple as running it through a stuffing tube and grounding out the rf current running external to the shield. Or there could be a high quality shielded cable used in the test chamber, which connects to a bulkhead-mounted and grounded adapter, and external to the chamber, the noisy support equipment and any crummy cable can be used. Lots of possible variations, but the point is that with a SAC, we don't have to be near as picky about the support equipment. Ken Javor Phone: (256) 650-5261 > From: Ralph McDiarmid <ralph.mcdiar...@schneider-electric.com> > Reply-To: Ralph McDiarmid <ralph.mcdiar...@schneider-electric.com> > Date: Thu, 12 Jan 2017 20:59:57 +0000 > To: <EMC-PSTC@LISTSERV.IEEE.ORG> > Conversation: [PSES] lowest emissions 4k TV? > Subject: Re: [PSES] lowest emissions 4k TV? > > I wonder if RF current on the coax coming in to the cable box then radiates > from the HDMI cable? All that overhead cable strung through residential > neighborhoods must pick up a lot of RFI on its outer braid. > > Ralph McDiarmid > Product Compliance > Solar Business > Schneider Electric > > - > ---------------------------------------------------------------- > 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> - ---------------------------------------------------------------- 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> --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus - ---------------------------------------------------------------- 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>
