A quick trip in the "Way Back" machine brings me back to the early PC days. To get parallel printers to pass the FCC class B requirements we had to use a very expensive cable purchased directly from IBM which had double shielded cable and heavy metal back shells. The cost was something like $50 which was a lot of money for a cable.
However, you could go to the local electronic store at the time and buy a printer cable made up of ribbon cable with crimp on D-sub on one end and a Centronics connector on the other for like $5. I think the only people who bought the $50 cable was EMC labs. The Other Brian -----Original Message----- From: Cortland Richmond [mailto:k...@earthlink.net] Sent: Wednesday, March 02, 2016 4:11 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] Source for Quality Video Cables On 3/2/2016 11:54 AM, IBM Ken wrote: > perhaps you could enclose the whole cable in a tubular copper braid > (or mylar-foil tape) and try to solder to the shield of the DVI > connectors Around 1987, my late brother, who was a free-lance C-language consultant, bought an extremely high resolution 27 inch, black-and-white (okay, orange and white) monitor. That way he could see several pages of code at the same time. Unfortunately, it interfered with the television reception of another resident on the 18th floor. I was working in EMC at the time, and took my ICOM R–7000 receiver over with an inductive probe. The noise was coming from the video cable. I did precisely what Ken suggests; I took a few feet of the shield from a piece of RG-8 cable slit down the side, slid it over the cable, made sure the braid overlapped across the slit and wrapped it tightly in electrical tape. Then I used tie-wraps to ensure the shield made good contact to the EMC back shells on the connectors. Problem solved! From the "For What It's Worth Department": I think modern monitors are quieter. It was a *BIG* CRT – and Class A to boot. Cortland Richmond - ---------------------------------------------------------------- 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> ________________________________ LECO Corporation Notice: This communication may contain confidential information intended for the named recipient(s) only. If you received this by mistake, please destroy it and notify us of the error. Thank you. - ---------------------------------------------------------------- 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>
