Hi Ken, If you are following ANSI C63.4 the then TV should be placed in the same room as the device under test.
-----Original Message----- From: Ken Javor [mailto:[email protected]] Sent: Thursday, January 12, 2017 8:27 PM To: [email protected] Subject: Re: [PSES] lowest emissions 4k TV? If I am qualifying a device that connects through a cable to this TV, but not the TV itself, why would it physically have to be part of the set-up in the test chamber? Why could it not simply be support equipment in an adjacent chamber, providing the proper interface at the end of the cable? Ken Javor Phone: (256) 650-5261 > From: Doug Smith <[email protected]> > Reply-To: <[email protected]> > Date: Thu, 12 Jan 2017 16:32:06 -0800 > To: <[email protected]>, Ken Javor > <[email protected]> > Subject: Re: [PSES] lowest emissions 4k TV? > > Hi Ken, > > Unless you are required to include a 4k TV or other device as part of > your test setup! > > Doug > > On Thu, 12 Jan 2017 18:20:05 -0600, Ken Javor > <[email protected]> wrote: > 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 <[email protected]> >>> Reply-To: Ralph McDiarmid <[email protected]> >>> Date: Thu, 12 Jan 2017 20:59:57 +0000 >>> To: <[email protected]> >>> 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 <[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]> >> >> - >> ---------------------------------------------------------------- >> 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]> >> >> > - ---------------------------------------------------------------- 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]> - ---------------------------------------------------------------- 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]>
