Why?? I get that on an OATS - there is no other room. But why in a SAC? Ken Javor Phone: (256) 650-5261
> From: "Grasso, Charles" <[email protected]> > Date: Fri, 13 Jan 2017 19:03:20 +0000 > To: 'Ken Javor' <[email protected]>, "[email protected]" > <[email protected]> > Conversation: [PSES] lowest emissions 4k TV? -ANSIC63.4 > Subject: RE: [PSES] lowest emissions 4k TV? -ANSIC63.4 > > 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]>
