Hi, The LISN grounding via receiver has been considered in CISPR 16-2-1 Edition 2 (2008), have a look to Fig 1 in Clause 5.3.
It recommends to have a ferrite in the coax. Regards, Ari Honkala ________________________________ From: [email protected] [mailto:[email protected]] On Behalf Of Ken Javor Sent: 23. syyskuuta 2009 23:12 To: [email protected] Subject: Re: [PSES] Conducted emission measurements Curiouser and curiouser. The ground plane to which the LISNs are connected must indeed be grounded, for safety if nothing else. But there is something else: the EMI receiver interrogating the LISNs ground the LISN by virtue of the coaxial connection between LISN EMI port and EMI coaxial input, both of which are grounded. That ground plane is 80 cm below the nonconductive table top, right? Am I understanding/misunderstanding that now there is a vertical ungrounded conductive surface at 40 cm distance from the test sample? I’m thinking I must be mixing up multiple inputs here. Ken Javor Phone: (256) 650-5261 - 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.ieeecommunities.org/emc-pstc Graphics (in well-used formats), large files, etc. can be posted to that URL. Website: http://www.ieee-pses.org/ Instructions: http://listserv.ieee.org/request/user-guide.html 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.ieeecommunities.org/emc-pstc Graphics (in well-used formats), large files, etc. can be posted to that URL. Website: http://www.ieee-pses.org/ Instructions: http://listserv.ieee.org/request/user-guide.html 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]>
