The way to fix this is to scream loud and long at the HDMI committee. It is a long-standing problem and they must be aware of it, but choose to ignore it, which appears irresponsible. With best wishes DESIGN IT IN! OOO – Own Opinions Only <http://www.jmwa.demon.co.uk/> www.jmwa.demon.co.uk J M Woodgate and Associates Rayleigh England Sylvae in aeternum manent. From: Schmidt, Mark [mailto:markschm...@xrite.com] Sent: Thursday, January 12, 2017 1:40 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] lowest emissions 4k TV? I too have had numerous HDMI problems in the past and as a matter of fact currently I have one now. The only long term solution is a custom cable with a properly terminated shield. I know of no cable manufacturer that does terminates the shield appropriately (I have tried many). The problem with doing this yourself is the fact that it is an expensive/time consuming step in manufacturing. You could get this cable built outside at a cable house that willing but again at a price. As you guys already mentioned, cable certification has nothing to do with proper construction of a HDMI cable for RF. Thanks, Mark From: Ghery S. Pettit [mailto:n6...@comcast.net] Sent: Wednesday, January 11, 2017 8:39 PM To: EMC-PSTC@LISTSERV.IEEE.ORG <mailto:EMC-PSTC@LISTSERV.IEEE.ORG> Subject: Re: [PSES] lowest emissions 4k TV? Brent, I ran into a problem with HDMI cables back in 2014. It seems that the HDMI specification for the cables does not address the termination of the outer shield. A cable can be marked as HDMI compliant with or without the shield being properly terminated (or not terminated at all). And, price was no indicator of whether or not the shield was properly terminated. And, boy did it make a difference on whether or not a device with an HDMI interface passed or not. I went back to our product team and suggested that they contact the HDMI committee about this. I retired from Intel a bit over a year and a half ago and had not heard back at that time if there was any result to the inquiry (or if, indeed, the inquiry had ever been made). You are correct, certification of a cable to HDMI specifications has nothing to do with shielding. I hope those of you dealing with this have some success in getting the specification changed. Ghery S. Pettit, NCE Pettit EMC Consulting LLC gh...@pettitemcconsulting.com <mailto:gh...@pettitemcconsulting.com> From: Brent DeWitt [mailto:bdew...@ix.netcom.com] Sent: Wednesday, January 11, 2017 4:58 PM To: EMC-PSTC@LISTSERV.IEEE.ORG <mailto:EMC-PSTC@LISTSERV.IEEE.ORG> Subject: Re: [PSES] lowest emissions 4k TV? I don’t want to go name bashing to the whole list, but about a year ago I had the project buy a bunch of very expensive HDMI cables in various lengths to compare against the cable we designed and have built for us. This company proudly advertised “THX Certified”. It appears that certification has little to do with shielding. That, or the manufacturer sent THX something very different than what they sold me, because they were some of the worst cables I’ve ever seen in terms of radiated emission characteristics. Dissection of one showed a ½ inch drain wire as the only shield to shell connection on a 4k advertised product. It ends up that our Bose branded cables are about as good as anything I can find. That’s not a sales pitch because (maybe unfortunately) we don’t sell them, only include them with the A4V product. Please be advised that this email may contain confidential information. If you are not the intended recipient, please notify us by email by replying to the sender and delete this message. The sender disclaims that the content of this email constitutes an offer to enter into, or the acceptance of, any agreement; provided that the foregoing does not invalidate the binding effect of any digital or other electronic reproduction of a manual signature that is included in any attachment. - ---------------------------------------------------------------- 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 <mailto: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) <http://www.ieee-pses.org/list.html> List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <sdoug...@ieee.org <mailto:sdoug...@ieee.org> > Mike Cantwell <mcantw...@ieee.org <mailto:mcantw...@ieee.org> > For policy questions, send mail to: Jim Bacher <j.bac...@ieee.org <mailto:j.bac...@ieee.org> > David Heald <dhe...@gmail.com <mailto: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>
