Re: [PSES] Conducted emissions for Split-phase 120/240V needs three-phase LISN?
ps. Old knowledge from old prior career experiences. I use arc welding cables for connections, not 4 ga wire that takes a pipe bender to work into place. Welding cables, are multi wire, and that means "multi" with a capital. Very flexible and capable of very high amps. It is for arc welding and flexible use ! On Friday, April 5, 2024 at 09:10:22 PM EDT, Lfresearch <00734758d943-dmarc-requ...@listserv.ieee.org> wrote: The way I understand this is that if we are in the USA, then our 240 volts is likely Bi-Phase, not like Europe which has the Line swinging about the neutral by 240 volts. In that case you can use a V LISN, or two single phase LISN’s. In the USA with a Bi-Phase you need 3 LISN’s. When I test these, I use a 3 phase LISN rather than 3 individual LISN’s. It’s crazy to split the power cord to reach the mains terminal on each LISN. Take care listening to sales guys…. My 10 cents, Derek. On Apr 5, 2024, at 7:24 PM, Ken Javor wrote: I may be missing something here, but you would need a pair of LISNs for a box that runs off a single phase and neutral. Most equipments of which I am aware use the same power connector pins whether 120 or 240 V. In that case, you just need one pair of LISNs. If for some reason your box runs off both 120 V and 240 simultaneously, then you would need two pairs of LISNs. Current rating is whatever you need. I believe there are several manufacturers offering models designed for up to 16 A. -- Ken JavorPh: (256) 650-5261 Hello and Happy Friday, I've got a sales guy telling me our 120/240V EUT needs two pair of single-phase LISNs for our CE test bench.That's only slightly cheaper than a 3-phase unit at > 50A, but very bulky. Can someone remind me why I'd need 4, 50A single-phase LISNs for our unit? I could see 3 (one for the neutral) but I'm not so savvy on EMC test equipment. thanks, Colorado Brian From: Brian Gregory Reply-To: Brian Gregory Date: Friday, April 5, 2024 at 5:01 PM To: Subject: [PSES] Conducted emissions for Split-phase 120/240V needs three-phase LISN? 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...@listserv.ieee.ORGAll emc-pstc postings are archived and searchable on the web at: https://www.mail-archive.com/emc-pstc@listserv.ieee.org/Website: https://ewh.ieee.org/soc/pses/ Instructions: https://ewh.ieee.org/soc/pses/list.html (including how to unsubscribe) List rules: https://ewh.ieee.org/soc/pses/listrules.htmlFor help, send mail to the list administrators: Mike Sherman at: msherma...@comcast.net Rick Linford at: Linford@ieee.orgFor policy questions, send mail to: Jim Bacher at: j.bacher@ieee.orgTo unsubscribe from the EMC-PSTC list, click the following link: https://listserv.ieee.org/cgi-bin/wa?SUBED1=EMC-PSTC=1 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-PSTC@LISTSERV.IEEE.ORG All emc-pstc postings are archived and searchable on the web at: https://www.mail-archive.com/emc-pstc@listserv.ieee.org/ Website: https://ewh.ieee.org/soc/pses/ Instructions: https://ewh.ieee.org/soc/pses/list.html (including how to unsubscribe) List rules: https://ewh.ieee.org/soc/pses/listrules.html For help, send mail to the list administrators: Mike Sherman at: msherma...@comcast.net Rick Linford at: linf...@ieee.org For policy questions, send mail to: Jim Bacher at: j.bac...@ieee.org To unsubscribe from the EMC-PSTC list, click the following link: https://listserv.ieee.org/cgi-bin/wa?SUBED1=EMC-PSTC=1 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-PSTC@LISTSERV.IEEE.ORG All emc-pstc postings are archived and searchable on the web at: https://www.mail-archive.com/emc-pstc@listserv.ieee.org/ Website: https://ewh.ieee.org/soc/pses/ Instructions: https://ewh.ieee.org/soc/pses/list.html (including how to unsubscribe) List rules: https://ewh.ieee.org/soc/pses/listrules.html For help, send mail to the list administrators: Mike Sherman at: msherma...@comcast.net Rick Linford at: linf...@ieee.org For policy questions, send mail to: Jim Bacher at: j.bac...@ieee.org To unsubscribe from the EMC-PSTC list, click the following link: https://listserv.ieee.org/cgi-bin/wa?SUBED1=EMC-PSTC=1 - 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-PSTC@LISTSERV.IEEE.ORG All emc-pstc postings are archived and searchable on the web at: https://www.mail-archive.com/emc-pstc@listserv.ieee.org/ Website: https://ewh.ieee.org/soc/pses/ Instructions: https://ewh.ieee.org/soc/pses/list.html (including how to unsubscribe) List rules: h
Re: [PSES] Conducted emissions for Split-phase 120/240V needs three-phase LISN?
Long ago, the company had the budget, so we bought single phase for each line. Thinking that we did not want any cross talk interference, which we had already experienced in the real world. Then we also had built the various configurations for supply power that we used. In essence measuring sources and load responses ! Sales people, good for prices only. cannot even get dimensions right. On Friday, April 5, 2024 at 09:43:31 PM EDT, T.Sato wrote: On Fri, 5 Apr 2024 22:01:29 GMT, Brian Gregory wrote: > Hello and Happy Friday, I've got a sales guy telling me our 120/240V EUT >needs two pair of single-phase LISNs for our CE test bench.That's only >slightly cheaper than a 3-phase unit at > 50A, but very bulky. Can someone >remind me why I'd need 4, 50A single-phase LISNs for our unit? I could see 3 >(one for the neutral) but I'm not so savvy on EMC test equipment. I think you can use either single 3-phase (usually 4 conductors + PE) LISN or two single-phase (2 conductors + PE) LISNs whichever you like, although I would prefer to use a single 3-phase LISN. BTW, there maybe confusion with the term "single-phase LISNs" here. Is it LISNs commonly used for single-phase AC supply? Or is it LISNs for an single power supplying conductor? Regards, Tom - 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-PSTC@LISTSERV.IEEE.ORG All emc-pstc postings are archived and searchable on the web at: https://www.mail-archive.com/emc-pstc@listserv.ieee.org/ Website: https://ewh.ieee.org/soc/pses/ Instructions: https://ewh.ieee.org/soc/pses/list.html (including how to unsubscribe) List rules: https://ewh.ieee.org/soc/pses/listrules.html For help, send mail to the list administrators: Mike Sherman at: msherma...@comcast.net Rick Linford at: linf...@ieee.org For policy questions, send mail to: Jim Bacher: _ To unsubscribe from the EMC-PSTC list, click the following link: https://listserv.ieee.org/cgi-bin/wa?SUBED1=EMC-PSTC=1 - 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-PSTC@LISTSERV.IEEE.ORG All emc-pstc postings are archived and searchable on the web at: https://www.mail-archive.com/emc-pstc@listserv.ieee.org/ Website: https://ewh.ieee.org/soc/pses/ Instructions: https://ewh.ieee.org/soc/pses/list.html (including how to unsubscribe) List rules: https://ewh.ieee.org/soc/pses/listrules.html For help, send mail to the list administrators: Mike Sherman at: msherma...@comcast.net Rick Linford at: linf...@ieee.org For policy questions, send mail to: Jim Bacher: _ To unsubscribe from the EMC-PSTC list, click the following link: https://listserv.ieee.org/cgi-bin/wa?SUBED1=EMC-PSTC=1
Re: [PSES] Conducted emissions for Split-phase 120/240V needs three-phase LISN?
It may be worth noting at any LISN using magnetic cores/elements in the 50uH bit, must be calibrated at the maximum rated current to verify that saturation isn't a problem. On 4/5/2024 9:56 PM, Brent DeWitt wrote: In my opinion, all of this is rather simple. Any LISN, ANSI or CISPR, references the noise to "ground". Any conductor not being measured should be terminated in 50 ohms. Whatever network used needs to make that so. Take your pick. On 4/5/2024 9:43 PM, T.Sato wrote: On Fri, 5 Apr 2024 22:01:29 GMT, Brian Gregory wrote: Hello and Happy Friday, I've got a sales guy telling me our 120/240V EUT needs two pair of single-phase LISNs for our CE test bench.That's only slightly cheaper than a 3-phase unit at > 50A, but very bulky. Can someone remind me why I'd need 4, 50A single-phase LISNs for our unit? I could see 3 (one for the neutral) but I'm not so savvy on EMC test equipment. I think you can use either single 3-phase (usually 4 conductors + PE) LISN or two single-phase (2 conductors + PE) LISNs whichever you like, although I would prefer to use a single 3-phase LISN. BTW, there maybe confusion with the term "single-phase LISNs" here. Is it LISNs commonly used for single-phase AC supply? Or is it LISNs for an single power supplying conductor? Regards, Tom - 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-PSTC@LISTSERV.IEEE.ORG All emc-pstc postings are archived and searchable on the web at: https://www.mail-archive.com/emc-pstc@listserv.ieee.org/ Website: https://ewh.ieee.org/soc/pses/ Instructions: https://ewh.ieee.org/soc/pses/list.html (including how to unsubscribe) List rules: https://ewh.ieee.org/soc/pses/listrules.html For help, send mail to the list administrators: Mike Sherman at: msherma...@comcast.net Rick Linford at: linf...@ieee.org For policy questions, send mail to: Jim Bacher: _ To unsubscribe from the EMC-PSTC list, click the following link: https://listserv.ieee.org/cgi-bin/wa?SUBED1=EMC-PSTC=1 - 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-PSTC@LISTSERV.IEEE.ORG All emc-pstc postings are archived and searchable on the web at: https://www.mail-archive.com/emc-pstc@listserv.ieee.org/ Website: https://ewh.ieee.org/soc/pses/ Instructions: https://ewh.ieee.org/soc/pses/list.html (including how to unsubscribe) List rules: https://ewh.ieee.org/soc/pses/listrules.html For help, send mail to the list administrators: Mike Sherman at: msherma...@comcast.net Rick Linford at: linf...@ieee.org For policy questions, send mail to: Jim Bacher: _ To unsubscribe from the EMC-PSTC list, click the following link: https://listserv.ieee.org/cgi-bin/wa?SUBED1=EMC-PSTC=1 - 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-PSTC@LISTSERV.IEEE.ORG All emc-pstc postings are archived and searchable on the web at: https://www.mail-archive.com/emc-pstc@listserv.ieee.org/ Website: https://ewh.ieee.org/soc/pses/ Instructions: https://ewh.ieee.org/soc/pses/list.html (including how to unsubscribe) List rules: https://ewh.ieee.org/soc/pses/listrules.html For help, send mail to the list administrators: Mike Sherman at: msherma...@comcast.net Rick Linford at: linf...@ieee.org For policy questions, send mail to: Jim Bacher: _ To unsubscribe from the EMC-PSTC list, click the following link: https://listserv.ieee.org/cgi-bin/wa?SUBED1=EMC-PSTC=1
Re: [PSES] Conducted emissions for Split-phase 120/240V needs three-phase LISN?
In my opinion, all of this is rather simple. Any LISN, ANSI or CISPR, references the noise to "ground". Any conductor not being measured should be terminated in 50 ohms. Whatever network used needs to make that so. Take your pick. On 4/5/2024 9:43 PM, T.Sato wrote: On Fri, 5 Apr 2024 22:01:29 GMT, Brian Gregory wrote: Hello and Happy Friday, I've got a sales guy telling me our 120/240V EUT needs two pair of single-phase LISNs for our CE test bench.That's only slightly cheaper than a 3-phase unit at > 50A, but very bulky. Can someone remind me why I'd need 4, 50A single-phase LISNs for our unit? I could see 3 (one for the neutral) but I'm not so savvy on EMC test equipment. I think you can use either single 3-phase (usually 4 conductors + PE) LISN or two single-phase (2 conductors + PE) LISNs whichever you like, although I would prefer to use a single 3-phase LISN. BTW, there maybe confusion with the term "single-phase LISNs" here. Is it LISNs commonly used for single-phase AC supply? Or is it LISNs for an single power supplying conductor? Regards, Tom - 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-PSTC@LISTSERV.IEEE.ORG All emc-pstc postings are archived and searchable on the web at: https://www.mail-archive.com/emc-pstc@listserv.ieee.org/ Website: https://ewh.ieee.org/soc/pses/ Instructions: https://ewh.ieee.org/soc/pses/list.html (including how to unsubscribe) List rules: https://ewh.ieee.org/soc/pses/listrules.html For help, send mail to the list administrators: Mike Sherman at: msherma...@comcast.net Rick Linford at: linf...@ieee.org For policy questions, send mail to: Jim Bacher: _ To unsubscribe from the EMC-PSTC list, click the following link: https://listserv.ieee.org/cgi-bin/wa?SUBED1=EMC-PSTC=1 - 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-PSTC@LISTSERV.IEEE.ORG All emc-pstc postings are archived and searchable on the web at: https://www.mail-archive.com/emc-pstc@listserv.ieee.org/ Website: https://ewh.ieee.org/soc/pses/ Instructions: https://ewh.ieee.org/soc/pses/list.html (including how to unsubscribe) List rules: https://ewh.ieee.org/soc/pses/listrules.html For help, send mail to the list administrators: Mike Sherman at: msherma...@comcast.net Rick Linford at: linf...@ieee.org For policy questions, send mail to: Jim Bacher: _ To unsubscribe from the EMC-PSTC list, click the following link: https://listserv.ieee.org/cgi-bin/wa?SUBED1=EMC-PSTC=1
Re: [PSES] Conducted emissions for Split-phase 120/240V needs three-phase LISN?
On Fri, 5 Apr 2024 22:01:29 GMT, Brian Gregory wrote: > Hello and Happy Friday, I've got a sales guy telling me our 120/240V EUT > needs two pair of single-phase LISNs for our CE test bench.That's only > slightly cheaper than a 3-phase unit at > 50A, but very bulky. Can someone > remind me why I'd need 4, 50A single-phase LISNs for our unit? I could see 3 > (one for the neutral) but I'm not so savvy on EMC test equipment. I think you can use either single 3-phase (usually 4 conductors + PE) LISN or two single-phase (2 conductors + PE) LISNs whichever you like, although I would prefer to use a single 3-phase LISN. BTW, there maybe confusion with the term "single-phase LISNs" here. Is it LISNs commonly used for single-phase AC supply? Or is it LISNs for an single power supplying conductor? Regards, Tom - 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-PSTC@LISTSERV.IEEE.ORG All emc-pstc postings are archived and searchable on the web at: https://www.mail-archive.com/emc-pstc@listserv.ieee.org/ Website: https://ewh.ieee.org/soc/pses/ Instructions: https://ewh.ieee.org/soc/pses/list.html (including how to unsubscribe) List rules: https://ewh.ieee.org/soc/pses/listrules.html For help, send mail to the list administrators: Mike Sherman at: msherma...@comcast.net Rick Linford at: linf...@ieee.org For policy questions, send mail to: Jim Bacher: _ To unsubscribe from the EMC-PSTC list, click the following link: https://listserv.ieee.org/cgi-bin/wa?SUBED1=EMC-PSTC=1
Re: [PSES] Conducted emissions for Split-phase 120/240V needs three-phase LISN?
The way I understand this is that if we are in the USA, then our 240 volts is likely Bi-Phase, not like Europe which has the Line swinging about the neutral by 240 volts. In that case you can use a V LISN, or two single phase LISN’s. In the USA with a Bi-Phase you need 3 LISN’s. When I test these, I use a 3 phase LISN rather than 3 individual LISN’s. It’s crazy to split the power cord to reach the mains terminal on each LISN. Take care listening to sales guys…. My 10 cents, Derek. > On Apr 5, 2024, at 7:24 PM, Ken Javor wrote: > > I may be missing something here, but you would need a pair of LISNs for a box > that runs off a single phase and neutral. Most equipments of which I am > aware use the same power connector pins whether 120 or 240 V. In that case, > you just need one pair of LISNs. If for some reason your box runs off both > 120 V and 240 simultaneously, then you would need two pairs of LISNs. > > Current rating is whatever you need. I believe there are several > manufacturers offering models designed for up to 16 A. > > -- > > Ken Javor > Ph: (256) 650-5261 > > > Hello and Happy Friday, > > I've got a sales guy telling me our 120/240V EUT needs two pair of > single-phase LISNs for our CE test bench. > That's only slightly cheaper than a 3-phase unit at > 50A, but very bulky. > > Can someone remind me why I'd need 4, 50A single-phase LISNs for our unit? I > could see 3 (one for the neutral) but I'm not so savvy on EMC test equipment. > > thanks, > > Colorado Brian > From: Brian Gregory <mailto:brian_greg...@netzero.net>> > Reply-To: Brian Gregory <mailto:brian_greg...@netzero.net>> > Date: Friday, April 5, 2024 at 5:01 PM > To: mailto:EMC-PSTC@LISTSERV.IEEE.ORG>> > Subject: [PSES] Conducted emissions for Split-phase 120/240V needs > three-phase LISN? > > 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-PSTC@LISTSERV.IEEE.ORG <mailto:EMC-PSTC@LISTSERV.IEEE.ORG> > All emc-pstc postings are archived and searchable on the web at: > https://www.mail-archive.com/emc-pstc@listserv.ieee.org/ > <https://www.mail-archive.com/emc-pstc@listserv.ieee.org/%20> > Website: https://ewh.ieee.org/soc/pses/ <https://ewh.ieee.org/soc/pses/> > Instructions: https://ewh.ieee.org/soc/pses/list.html (including how to > unsubscribe) <https://ewh.ieee.org/soc/pses/list.html> > List rules: https://ewh.ieee.org/soc/pses/listrules.html > For help, send mail to the list administrators: > Mike Sherman at: msherma...@comcast.net <mailto:msherma...@comcast.net> > Rick Linford at: linf...@ieee.org <mailto:linf...@ieee.org> > For policy questions, send mail to: > Jim Bacher at: j.bac...@ieee.org <mailto:j.bac...@ieee.org> > To unsubscribe from the EMC-PSTC list, click the following link: > https://listserv.ieee.org/cgi-bin/wa?SUBED1=EMC-PSTC=1 > 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-PSTC@LISTSERV.IEEE.ORG <mailto:EMC-PSTC@LISTSERV.IEEE.ORG>All emc-pstc > postings are archived and searchable on the web at: > https://www.mail-archive.com/emc-pstc@listserv.ieee.org/ > > Website: https://ewh.ieee.org/soc/pses/ <https://ewh.ieee.org/soc/pses/> > Instructions: https://ewh.ieee.org/soc/pses/list.html (including how to > unsubscribe) <https://ewh.ieee.org/soc/pses/list.html> > List rules: https://ewh.ieee.org/soc/pses/listrules.html > > For help, send mail to the list administrators: > Mike Sherman at: msherma...@comcast.net <mailto:msherma...@comcast.net> > Rick Linford at: linf...@ieee.org <mailto:linf...@ieee.org> > For policy questions, send mail to: > Jim Bacher at: j.bac...@ieee.org <mailto:j.bac...@ieee.org> > To unsubscribe from the EMC-PSTC list, click the following link: > https://listserv.ieee.org/cgi-bin/wa?SUBED1=EMC-PSTC=1 > - 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-PSTC@LISTSERV.IEEE.ORG All emc-pstc postings are archived and searchable on the web at: https://www.mail-archive.com/emc-pstc@listserv.ieee.org/ Website: https://ewh.ieee.org/soc/pses/ Instructions: https://ewh.ieee.org/soc/pses/list.html (including how to unsubscribe) List rules: https://ewh.ieee.org/soc/pses/listrules.html For help, send mail to the list administrators: Mike Sherman at: msherma...@comcast.net Rick Linford at: linf...@ieee.org For policy questions, send mail to: Jim Bacher: _ To unsubscribe from the EMC-PSTC list, click the following link: https://listserv.ieee.org/cgi-bin/wa?SUBED1=EMC-PSTC=1
Re: [PSES] Conducted emissions for Split-phase 120/240V needs three-phase LISN?
I may be missing something here, but you would need a pair of LISNs for a box that runs off a single phase and neutral. Most equipments of which I am aware use the same power connector pins whether 120 or 240 V. In that case, you just need one pair of LISNs. If for some reason your box runs off both 120 V and 240 simultaneously, then you would need two pairs of LISNs. Current rating is whatever you need. I believe there are several manufacturers offering models designed for up to 16 A. -- Ken Javor Ph: (256) 650-5261 Hello and Happy Friday, I've got a sales guy telling me our 120/240V EUT needs two pair of single-phase LISNs for our CE test bench. That's only slightly cheaper than a 3-phase unit at > 50A, but very bulky. Can someone remind me why I'd need 4, 50A single-phase LISNs for our unit? I could see 3 (one for the neutral) but I'm not so savvy on EMC test equipment. thanks, Colorado Brian From: Brian Gregory Reply-To: Brian Gregory Date: Friday, April 5, 2024 at 5:01 PM To: Subject: [PSES] Conducted emissions for Split-phase 120/240V needs three-phase LISN? 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-PSTC@LISTSERV.IEEE.ORG All emc-pstc postings are archived and searchable on the web at: https://www.mail-archive.com/emc-pstc@listserv.ieee.org/ Website: https://ewh.ieee.org/soc/pses/ Instructions: https://ewh.ieee.org/soc/pses/list.html (including how to unsubscribe) List rules: https://ewh.ieee.org/soc/pses/listrules.html For help, send mail to the list administrators: Mike Sherman at: msherma...@comcast.net Rick Linford at: linf...@ieee.org For policy questions, send mail to: Jim Bacher at: j.bac...@ieee.org To unsubscribe from the EMC-PSTC list, click the following link: https://listserv.ieee.org/cgi-bin/wa?SUBED1=EMC-PSTC=1 - 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-PSTC@LISTSERV.IEEE.ORG All emc-pstc postings are archived and searchable on the web at: https://www.mail-archive.com/emc-pstc@listserv.ieee.org/ Website: https://ewh.ieee.org/soc/pses/ Instructions: https://ewh.ieee.org/soc/pses/list.html (including how to unsubscribe) List rules: https://ewh.ieee.org/soc/pses/listrules.html For help, send mail to the list administrators: Mike Sherman at: msherma...@comcast.net Rick Linford at: linf...@ieee.org For policy questions, send mail to: Jim Bacher: _ To unsubscribe from the EMC-PSTC list, click the following link: https://listserv.ieee.org/cgi-bin/wa?SUBED1=EMC-PSTC=1
[PSES] Conducted emissions for Split-phase 120/240V needs three-phase LISN?
Hello and Happy Friday, I've got a sales guy telling me our 120/240V EUT needs two pair of single-phase LISNs for our CE test bench.That's only slightly cheaper than a 3-phase unit at > 50A, but very bulky. Can someone remind me why I'd need 4, 50A single-phase LISNs for our unit? I could see 3 (one for the neutral) but I'm not so savvy on EMC test equipment. thanks, Colorado Brian - 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-PSTC@LISTSERV.IEEE.ORG All emc-pstc postings are archived and searchable on the web at: https://www.mail-archive.com/emc-pstc@listserv.ieee.org/ Website: https://ewh.ieee.org/soc/pses/ Instructions: https://ewh.ieee.org/soc/pses/list.html (including how to unsubscribe) List rules: https://ewh.ieee.org/soc/pses/listrules.html For help, send mail to the list administrators: Mike Sherman at: msherma...@comcast.net Rick Linford at: linf...@ieee.org For policy questions, send mail to: Jim Bacher: _ To unsubscribe from the EMC-PSTC list, click the following link: https://listserv.ieee.org/cgi-bin/wa?SUBED1=EMC-PSTC=1