Re: Considering a consultant to help with semi-anechoic chamber relocation and performance improvements
hi Bob, wish I had your patience and Money :-) Or maybe you have mine lol... I guess you're in one camp or the other, I'll stick to Agilent. I could never get used to reverse polish logic either, despite being told how much better it was As for a click receiver, check out the PMM, I have, it's a 3rd the cost of R and S, and every bit as good Make that better cos' I'm not worrying about the $8k repair bill for the RS every time I hook something up. Cheers, Derek. -Original Message- From: Bob Richards b...@toprudder.com To: emc-p...@ieee.org Sent: Tue, Feb 15, 2011 8:45 pm Subject: Re: Considering a consultant to help with semi-anechoic chamber relocation and performance improvements --- On Tue, 2/15/11, Derek Walton lfresea...@aol.com wrote: snip. my point was about perception. As for the RS? Thats an opinion formed by using it, perhaps the best opinion? Derek, I use a RS ESI almost every day. I love it. Yes, it is expensive, but it did not come out of MY paycheck. :-) (Well, maybe it did?? :-( It took a couple of months of using it before I decided I liked it more than the Agilent 7405 (which I still like). The 7405 has a much easier user interface, which helps if you are only an occasional user, and it also has a built-in help system (which includes the GPIB commands for every function - which I REALLY like). The RS ESI has a clunky user interface, but after you get used to performing the repetitive operations with it, you can fly through measurements with it. In receiver mode, it can display peak, QP and average measurements all at once. We are considering buying another RS soon. We need a 55014 click analyzer and one of the RS models has that function built in. Bob R. - 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://product-compliance.oc.ieee.org/ 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 emcp...@radiusnorth.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher j.bac...@ieee.org David Heald dhe...@gmail.com - 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://product-compliance.oc.ieee.org/ 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 emcp...@radiusnorth.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher j.bac...@ieee.org David Heald dhe...@gmail.com
Re: Considering a consultant to help with semi-anechoic chamber relocation and performance improvements
--- On Tue, 2/15/11, Derek Walton lfresea...@aol.com wrote: snip. my point was about perception. As for the RS? Thats an opinion formed by using it, perhaps the best opinion? Derek, I use a RS ESI almost every day. I love it. Yes, it is expensive, but it did not come out of MY paycheck. :-) (Well, maybe it did?? :-( It took a couple of months of using it before I decided I liked it more than the Agilent 7405 (which I still like). The 7405 has a much easier user interface, which helps if you are only an occasional user, and it also has a built-in help system (which includes the GPIB commands for every function - which I REALLY like). The RS ESI has a clunky user interface, but after you get used to performing the repetitive operations with it, you can fly through measurements with it. In receiver mode, it can display peak, QP and average measurements all at once. We are considering buying another RS soon. We need a 55014 click analyzer and one of the RS models has that function built in. Bob R. - 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://product-compliance.oc.ieee.org/ 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 emcp...@radiusnorth.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher j.bac...@ieee.org David Heald dhe...@gmail.com
RE: Considering a consultant to help with semi-anechoic chamber relocation and performance improvements
Chris, Of the analyzers I have used, I like the RS ESI the most. Expensive, though. It took me a while to warm up to it, it was a lot different than any of the HP/Agilents that I have used (859x, 8566, 740x). The 740x is also nice analyzer. I use that to perform the conducted immunity level setting procedure since it is faster than anything else I have used. I can do a 150k to 230M calibration in less than 15 minutes with it. We have recently contracted with Panashield to come in and handle the 1 - 6 GHz setup. We looked into buying the necessary equipment and learning how to use it, and how to perform the verification, and decided to let them handle it. Bob R. --- On Mon, 2/14/11, Chris Anderson (cmanderson) cmander...@micron.com wrote: From: Chris Anderson (cmanderson) cmander...@micron.com Subject: RE: Considering a consultant to help with semi-anechoic chamber relocation and performance improvements To: jim.eich...@schneider-electric.com, emc-p...@ieee.org Date: Monday, February 14, 2011, 6:13 PM Good luck Jim… We moved one two years ago and that pain is still fresh in my mind. The only advice I can offer on that is to label everything and take plenty of notes/pictures. While I won’t be moving a chamber anytime soon, we are trying to get approval to replace the same, aging 856x stack. If anyone cares to comment on that online, I would be interested in any thoughts or recommendations as well. We’re also in the same situation of needing to go beyond 1GHz RE measurements (also in a 3m SAC), so any comments on that topic would be appreciated as well. Thanks, Chris From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of jim.eich...@schneider-electric.com Sent: Monday, February 14, 2011 3:15 PM To: emc-p...@ieee.org Subject: Considering a consultant to help with semi-anechoic chamber relocation and performance improvements Hi everyone: We are about to move (groan) and while this generally is a pain, it provides the opportunity to fix a few problems along the way. Our 3m SAC is usable, and indeed gets fairly heavy use, but is not as good as I think it could be, in a few ways: - Our emissions measurement correlation to real labs is OK but could be better, particularly on conducted emissions - Our aging HP rack (the classic 856x series) is getting old and is starting to be costly to maintain - time to switch? - We have always just had a manual turntable and would like to see what's involved in going with a motorized turntable and controller - We have aging cones, many with broken tips - maybe not an issue, but maybe it is? - We haven't researched what it would take to go past 1GHz with our RE measurements, but we need to - Etc. I think it would be worthwhile to have someone who is an expert in design and troubleshooting of SAC's and EMC instrumentation come here, give us a once-over, make recommendations for improvements that we could implement as part of the move, and perhaps participate in the teardown and relocation of the chamber (not as simple as it sounds) or recommend someone who could. If you are interested and qualified, or know someone who is, please reply to me off-line at jim.eich...@ca.schneider-electric.com. I would prefer somebody at least somewhat local - we are in the Vancouver BC area. Thanks, Jim _ Jim Eichner | Schneider Electric | Renewable Energies Business | CANADA | Compliance Engineering Manager Site: www.schneider-electric.com/renewable-energies http://www.schneider-electric.com/renewable-energies | Address: 8999 Nelson Way, Burnaby, BC, V5A 4B5 - 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 http://us.mc11.mail.yahoo.com/mc/compose?to=emc-p...@ieee.org All emc-pstc postings are archived and searchable on the web at http://product-compliance.oc.ieee.org/ 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 emcp...@radiusnorth.net
Re: EMC for IR remotes
ummm, generally, I think previous posts indicate that the device only has to meet the directive, which is declared in a DoC. How the manufacturer satisfies to himself that indeed the device does comply,is quite variable, but a common set of tests are generally chosen. For this particular device, hopefully there will be some feedback. Attitude is Mind over Matter. If you don't Mind, it doesn't Matter... This email has been displayed using 100% recycled electrons and 100% pure virgin photons. --- On Tue, 2/15/11, steve.leit...@comcast.net steve.leit...@comcast.net wrote: From: steve.leit...@comcast.net steve.leit...@comcast.net Subject: EMC for IR remotes To: PSNet emc-p...@ieee.org Date: Tuesday, February 15, 2011, 6:00 PM Hello, Typical battery powered infrared remote controls, like those for your television, are exempt from FCC Part 15 if they generate or use less than 1.705 MHz (unless the device can be operated also from the AC mains). Is there a similar exemption for such devices in the EU, or must IR remotes be subjected to radiated emissions and applicable immunity tests per, e.g., 55022/24 or 55013/20 (depending on its use)? Regards, Steve - 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://product-compliance.oc.ieee.org/ 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 emcp...@radiusnorth.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher j.bac...@ieee.org David Heald dhe...@gmail.com - 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://product-compliance.oc.ieee.org/ 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 emcp...@radiusnorth.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher j.bac...@ieee.org David Heald dhe...@gmail.com
Job Opening: EMC Manager, Juniper Networks, Sunnyvale, CA
Hello All, Due to a retirement (lucky guy), we have a position opening for an EMC Manager. Please see the job description below. Juniper is growing and this is an excellent opportunity for career development. The position is located in Sunnyvale, CA with only minimal requirements for non-local travel. The job is not yet posted on the www.juniper.net careers web page. If you are interested: 1. Send your resume directly to me. 2. It wouldn't hurt to monitor the website and submit there as well. Thanks, Marko mradoji...@juniper.net EMC Design Manager EMC Design Manager at Juniper Networks is part of a multi-disciplinary team involved in product development from concept through final release. The Manager will lead a group of EMC engineers to ensure that EMC compliance is designed-in from the start of the projects. The candidate should have a strong background in EMC technology and proven leadership experience in design and mentoring of a team of engineers. • Technical leadership to lead EMC team and provide subject matter expertise within Juniper. Ability to advance Juniper’s EMC technology to support new requirements. Industry awareness and knowledge of EMC compliance standards. • Project scoping and resource planning to support new product development. Track EMC deliverables in support of programs and resolve cross-functional issues. • People management including team and career development, hiring and interface with leadership in other development groups. • Excellent verbal and written communications skills and ability to work with remote geographies and outside ODM partners. Education: MSEE or equivalent, and 12 years experience in EMC design. - 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://product-compliance.oc.ieee.org/ 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 emcp...@radiusnorth.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher j.bac...@ieee.org David Heald dhe...@gmail.com
RE: OATS vs anechoic - AC line impedance at RF
It’s worse than just the filter. How long are the wire runs from the outlets on the turntable to the filter? What is between the filter and the outlets? Circuit breaker panels in the turntable pit? Or not? How are the wires run? Different ways for different OATS facilities, not just between different chambers. This mess is why ferrite clamps on the cables leaving the measurement area were incorporated for a time in CISPR 22. They weren’t adequately defined, so they got pulled in a later revision. That, and what do you do if you have 100 cables leaving the EUT? But the problem persists. A very real problem for repeatability between test facilities. Ghery S. Pettit From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of ralph.mcdiar...@schneider-electric.com Sent: Tuesday, February 15, 2011 3:47 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: OATS vs anechoic - AC line impedance at RF That's an 'eye opener' Derek. The tests I've witnessed over the years always have AC power coming through an LISN during RE testing, so at least that helps standardise the impedance. I wonder what effect the AC facility filter upstream from the LISN has on source impedance. ___ _ Ralph McDiarmid | Schneider Electric | Renewable Energies Business | CANADA | Regulatory Engineer From: Derek Walton lfresea...@aol.com To: EMC-PSTC@LISTSERV.IEEE.ORG List-Post: emc-pstc@listserv.ieee.org Date: 02/13/2011 06:07 AM Subject: Re: [PSES] OATS vs anechoic HI Brian, a number of things can be going on. Just for a start, the chambers and OATS have NSA done, if your problems are vertical, it's possible to have 8 dB difference in NSA especially at the lower end: just keep that in mind. HOWEVER, NSA doesn't always reflect what the EUT does on the site. An observation I made testing a pump a while back was that the impedance of the power cord as it terminates at the shield room/OATS ground plane influenced greatly the radiated emissions. What I mean by terminates is that power under the ground plane may have filters, LISN's or nothing. BUT, the impedance there is going to influence the emissions. In my experiment I added several large Ferrites ( almost the size of a fist, just as the power came into the chamber from the Power line filters. There is nothing in the standards that says what the impedance of the power source should be for RE, so I believe this is legitimate. At 70 MHz emissions dropped almost 12 dB. The way you describe outages in bands kind of implies that a cable is resonating when you have excessive emissions, maybe the beads are worth a try... Cheers, Derek. -Original Message- From: Brian O'Connell oconne...@tamuracorp.com To: 'Brent G DeWitt' bdew...@ix.netcom.com Cc: EMC-PSTC@LISTSERV.IEEE.ORG Sent: Sat, Feb 12, 2011 6:02 pm Subject: RE: [PSES] OATS vs anechoic Brent, The power cord is dressed casual. Sorry. Class II construction - no ground wire, hence no ground plane to reference. Back at the office and am now viewing similar dissimilar results from two indoor and two outdoor sites, so it probably has something to do with the H-field, and the power cord radiator makes a little more sense to me, I think... Brian -Original Message- From: Brent G DeWitt Sent: Saturday, February 12, 2011 3:53 PM To: oconne...@tamuracorp.com mailto:oconne...@tamuracorp.com Subject: RE: [PSES] OATS vs anechoic Hi again Brian, How is the power cord dressed and terminated at the ground plane? Huge variations between test sites on how this is done! Brent -Original Message- From: Brian O'Connell [mailto:oconne...@tamuracorp.com mailto:oconne...@tamuracorp.com? ] Sent: Saturday, February 12, 2011 6:22 PM To: EMC-PSTC@LISTSERV.IEEE.ORG mailto:EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] OATS vs anechoic Just finished 2d OATS site - was not able to detect much of anything. Went back to indoors fully anechoic, where the noise plot is deafening. This is a simple 100W unit with one main ac/dc converter and (6) dc current modulators. Construction is mostly plastic, with exception of metal base plate. As it is Class II construction, there is no ground wire. Bad stuff is at 40-80MHz and 200-500MHz. Did some isolation troubleshooting - looks like the input power cord is the main radiator. The EMC engineers at all three sites are both baffled and fascinated and want a sample unit to play with. I am very happy that they are amused, but I have to ship a product and cannot afford to support the Southern California EMC industry. thanks, Brian -Original Message- From: emc-p...@ieee.org
Re: OATS vs anechoic - AC line impedance at RF
That's an 'eye opener' Derek. The tests I've witnessed over the years always have AC power coming through an LISN during RE testing, so at least that helps standardise the impedance. I wonder what effect the AC facility filter upstream from the LISN has on source impedance. ___ _ Ralph McDiarmid | Schneider Electric | Renewable Energies Business | CANADA | Regulatory Engineer From: Derek Walton lfresea...@aol.com To: EMC-PSTC@LISTSERV.IEEE.ORG List-Post: emc-pstc@listserv.ieee.org Date: 02/13/2011 06:07 AM Subject:Re: [PSES] OATS vs anechoic HI Brian, a number of things can be going on. Just for a start, the chambers and OATS have NSA done, if your problems are vertical, it's possible to have 8 dB difference in NSA especially at the lower end: just keep that in mind. HOWEVER, NSA doesn't always reflect what the EUT does on the site. An observation I made testing a pump a while back was that the impedance of the power cord as it terminates at the shield room/OATS ground plane influenced greatly the radiated emissions. What I mean by terminates is that power under the ground plane may have filters, LISN's or nothing. BUT, the impedance there is going to influence the emissions. In my experiment I added several large Ferrites ( almost the size of a fist, just as the power came into the chamber from the Power line filters. There is nothing in the standards that says what the impedance of the power source should be for RE, so I believe this is legitimate. At 70 MHz emissions dropped almost 12 dB. The way you describe outages in bands kind of implies that a cable is resonating when you have excessive emissions, maybe the beads are worth a try... Cheers, Derek. -Original Message- From: Brian O'Connell oconne...@tamuracorp.com To: 'Brent G DeWitt' bdew...@ix.netcom.com Cc: EMC-PSTC@LISTSERV.IEEE.ORG Sent: Sat, Feb 12, 2011 6:02 pm Subject: RE: [PSES] OATS vs anechoic Brent, The power cord is dressed casual. Sorry. Class II construction - no ground wire, hence no ground plane to reference. Back at the office and am now viewing similar dissimilar results from two indoor and two outdoor sites, so it probably has something to do with the H-field, and the power cord radiator makes a little more sense to me, I think... Brian -Original Message- From: Brent G DeWitt Sent: Saturday, February 12, 2011 3:53 PM To: oconne...@tamuracorp.com mailto:oconne...@tamuracorp.com Subject: RE: [PSES] OATS vs anechoic Hi again Brian, How is the power cord dressed and terminated at the ground plane? Huge variations between test sites on how this is done! Brent -Original Message- From: Brian O'Connell [mailto:oconne...@tamuracorp.com mailto:oconne...@tamuracorp.com? ] Sent: Saturday, February 12, 2011 6:22 PM To: EMC-PSTC@LISTSERV.IEEE.ORG mailto:EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] OATS vs anechoic Just finished 2d OATS site - was not able to detect much of anything. Went back to indoors fully anechoic, where the noise plot is deafening. This is a simple 100W unit with one main ac/dc converter and (6) dc current modulators. Construction is mostly plastic, with exception of metal base plate. As it is Class II construction, there is no ground wire. Bad stuff is at 40-80MHz and 200-500MHz. Did some isolation troubleshooting - looks like the input power cord is the main radiator. The EMC engineers at all three sites are both baffled and fascinated and want a sample unit to play with. I am very happy that they are amused, but I have to ship a product and cannot afford to support the Southern California EMC industry. thanks, Brian -Original Message- From: emc-p...@ieee.org mailto:emc-p...@ieee.org [mailto:emc-p...@ieee.org]On mailto:emc-p...@ieee.org]On? Behalf Of Brian O'Connell Sent: Saturday, February 12, 2011 12:25 PM To: EMC-PSTC@LISTSERV.IEEE.ORG mailto:EMC-PSTC@LISTSERV.IEEE.ORG Subject: OATS vs anechoic Good People, Have tested at several sites. All are 'big' names and have a good reputation. The 10m fully anechoic chamber data indicates from +5dB to +11dB in several frequencies; while the 10m OATS says the unit passes Class B, min -4.2dB. Huh?!? What is the physics behind the difference between an outside site and absorbers? Where are the Borg when you need them? Brian - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send
EMC for IR remotes
Hello, Typical battery powered infrared remote controls, like those for your television, are exempt from FCC Part 15 if they generate or use less than 1.705 MHz (unless the device can be operated also from the AC mains). Is there a similar exemption for such devices in the EU, or must IR remotes be subjected to radiated emissions and applicable immunity tests per, e.g., 55022/24 or 55013/20 (depending on its use)? Regards, Steve - 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://product-compliance.oc.ieee.org/ 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 emcp...@radiusnorth.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher j.bac...@ieee.org David Heald dhe...@gmail.com
Re: Cleaning of EMC mating surfaces - suggestions
Gary, I would try DeoxIT from Caig Laboratories. It chemically removes the oxides without harming the surface. I have used it for years on all type of connectors, etc. The surface won't look any different but it sure should work better! I won't even change an automotive lamp anymore without using it. We used to call it gremlin spray because it often makes intermittent problems go away. Scott B. Lacey - 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://product-compliance.oc.ieee.org/ 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 emcp...@radiusnorth.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher j.bac...@ieee.org David Heald dhe...@gmail.com
Re: Cleaning of EMC mating surfaces - suggestions
In message d250d01e39356a4e9cc3b4b459d665500121a...@ms-cda-01.advanced-input.com, dated Tue, 15 Feb 2011, McInturff, Gary gary.mcintu...@esterline.com writes: I need to clean some metallic mating surfaces and since I have to use this same equipment in the future, I don?t want to just lightly sand the surfaces if I can help it. I suppose like gold contact I might be able to use the old eraser trick but I would like to chemically clean the surfaces to remove any coating contamination or oxidation without taking off the coating or the underlying metal plating ? any body got a favorite cleaner? If you want to be very delicate, use isopropanol (isopropyl alcohol). If you suspect more resistant organic deposits, toluene is useful. There are also household 'cream' cleaners that are effective, but you do need to wash off as the residue may be a bit too aggressive. I do not recommend cola or tomato sauce! I can't help with your PC, other than the obvious suggestion, to replace the finger-gasket with a better quality one. -- OOO - Own Opinions Only. Try www.jmwa.demon.co.uk and www.isce.org.uk John Woodgate, J M Woodgate and Associates, Rayleigh, Essex UK Plural: data, criteria, phenomena. Singular: datum (different meaning: use 'data element' for a single item), criterion, phenomenon. 'Effect' is a noun, 'affect' is a verb (except in psychiatry). - 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://product-compliance.oc.ieee.org/ 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 emcp...@radiusnorth.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher: j.bac...@ieee.org David Heald: dhe...@gmail.com
Static Dissipative Brush
Does anyone know who makes a simple static dissipative brush that resembles a small piece of foil tape with embedded bristles? This looks like a very inexpensive part and I've seen one on the output of a small label printer. However I have no idea who makes it and my friend Google hasn't helped me much. Thanks. Jim Hulbert Pitney Bowes - 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://product-compliance.oc.ieee.org/ 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 emcp...@radiusnorth.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher j.bac...@ieee.org David Heald dhe...@gmail.com
RE: Cleaning of EMC mating surfaces - suggestions
Nevr-dull (http://www.nevrdull.com/index.html) and paper towels or rags. Works great and is not as dangerous as some other solutions and requires less elbow grease. -Doug From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of Bill Owsley Sent: Tuesday, February 15, 2011 10:13 AM To: EMC-PSTC@LISTSERV.IEEE.ORG; GaryMcInturff Subject: Re: Cleaning of EMC mating surfaces - suggestions For a solvent, I've used the automotive spray brake cleaner. It's alcohol based, with some other stuff in it. And one of those 'scotch brite' like scrubs can help remove and stubborn material without doing to much damage to the surface. The little lacy interface thingy is supposed to better than half hard metal and stainless too. Springy, with a capital S. Another cheep substitute and/or manufacturing fail. For your one time solution, take the card bracket, the L shaped one that gets fitted in, off the card, or at least loosen the screws. Then with your fingers, in a fashion that spreads the pressure across the surface of the bracket, GENTLY bow the center outwards a small amount. When re-assembled and fitted back in, that bow will work as a spring, sealing to a larger degree, that gaps that were open. Be sure the bottom tab catches in the little socket meant for it. You can also find the lacy things online from those stores that supply parts to build computers. But I suspect the quality is dead soft metal, not the spring originally specified. Once we specified beryllium copper spring fingers. The price per inch was something like $0.35 but manufacturing fournd a source at $0.07 per inch. That was in the first build, which got EMC tested. Fail! I think copper tape had more spring than those fingers did. Big re-work. Attitude is Mind over Matter. If you don't Mind, it doesn't Matter... This email has been displayed using 100% recycled electrons and 100% pure virgin photons. --- On Tue, 2/15/11, McInturff, Gary gary.mcintu...@esterline.com wrote: From: McInturff, Gary gary.mcintu...@esterline.com Subject: Cleaning of EMC mating surfaces - suggestions To: EMC-PSTC@LISTSERV.IEEE.ORG EMC-PSTC@LISTSERV.IEEE.ORG List-Post: emc-pstc@listserv.ieee.org Date: Tuesday, February 15, 2011, 10:47 AM I need to clean some metallic mating surfaces and since I have to use this same equipment in the future, I don’t want to just lightly sand the surfaces if I can help it. I suppose like gold contact I might be able to use the old eraser trick but I would like to chemically clean the surfaces to remove any coating contamination or oxidation without taking off the coating or the underlying metal plating – any body got a favorite cleaner? I have a support PC made by one of the biggie manufacturers that I desperately need to meet class B emissions because it is the only one I have to drive the test item. Unfortunately it has what I’m sure the Mechanical Engineer thinks is a robust solution for the I/O panel for user added cards. From a brand new one time user perspective it is pretty slick, no tools need, just snap a couple of plastic fulcrums to different position to remove or add a card. The card face mates into a very delicate little lace interface of punched tin plated “?” gasket that conforms at several points along the I/O card face panel and the inside of the computer housing. The fit happens exactly once as far as I can tell. It mostly crushes and distorts and just leaves a cap running between the I/O card faceplate and the computer chassis. I’ll give them style points – but I’m going to whack somebody over the head for the execution. (I think I hear a wh-mbulance in the distance) Gary McInturff - 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://product-compliance.oc.ieee.org/ 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 emcp...@radiusnorth.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher j.bac...@ieee.org David Heald dhe...@gmail.com - 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://product-compliance.oc.ieee.org/ Graphics (in well-used formats), large files, etc. can be posted to that URL. Website: http://www.ieee-pses.org/
Re: Cleaning of EMC mating surfaces - suggestions
For a solvent, I've used the automotive spray brake cleaner. It's alcohol based, with some other stuff in it. And one of those 'scotch brite' like scrubs can help remove and stubborn material without doing to much damage to the surface. The little lacy interface thingy is supposed to better than half hard metal and stainless too. Springy, with a capital S. Another cheep substitute and/or manufacturing fail. For your one time solution, take the card bracket, the L shaped one that gets fitted in, off the card, or at least loosen the screws. Then with your fingers, in a fashion that spreads the pressure across the surface of the bracket, GENTLY bow the center outwards a small amount. When re-assembled and fitted back in, that bow will work as a spring, sealing to a larger degree, that gaps that were open. Be sure the bottom tab catches in the little socket meant for it. You can also find the lacy things online from those stores that supply parts to build computers. But I suspect the quality is dead soft metal, not the spring originally specified. Once we specified beryllium copper spring fingers. The price per inch was something like $0.35 but manufacturing fournd a source at $0.07 per inch. That was in the first build, which got EMC tested. Fail! I think copper tape had more spring than those fingers did. Big re-work. Attitude is Mind over Matter. If you don't Mind, it doesn't Matter... This email has been displayed using 100% recycled electrons and 100% pure virgin photons. --- On Tue, 2/15/11, McInturff, Gary gary.mcintu...@esterline.com wrote: From: McInturff, Gary gary.mcintu...@esterline.com Subject: Cleaning of EMC mating surfaces - suggestions To: EMC-PSTC@LISTSERV.IEEE.ORG EMC-PSTC@LISTSERV.IEEE.ORG Date: Tuesday, February 15, 2011, 10:47 AM I need to clean some metallic mating surfaces and since I have to use this same equipment in the future, I don’t want to just lightly sand the surfaces if I can help it. I suppose like gold contact I might be able to use the old eraser trick but I would like to chemically clean the surfaces to remove any coating contamination or oxidation without taking off the coating or the underlying metal plating – any body got a favorite cleaner? I have a support PC made by one of the biggie manufacturers that I desperately need to meet class B emissions because it is the only one I have to drive the test item. Unfortunately it has what I’m sure the Mechanical Engineer thinks is a robust solution for the I/O panel for user added cards. From a brand new one time user perspective it is pretty slick, no tools need, just snap a couple of plastic fulcrums to different position to remove or add a card. The card face mates into a very delicate little lace interface of punched tin plated “?” gasket that conforms at several points along the I/O card face panel and the inside of the computer housing. The fit happens exactly once as far as I can tell. It mostly crushes and distorts and just leaves a cap running between the I/O card faceplate and the computer chassis. I’ll give them style points – but I’m going to whack somebody over the head for the execution. (I think I hear a wh-mbulance in the distance) Gary McInturff - 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://product-compliance.oc.ieee.org/ 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 emcp...@radiusnorth.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher j.bac...@ieee.org David Heald dhe...@gmail.com - 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://product-compliance.oc.ieee.org/ 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 emcp...@radiusnorth.net Mike Cantwell
RE: Cleaning of EMC mating surfaces - suggestions
Gary: Although it is mechanical, I would try some of that Scotch-Brite abrasive plastic pad to burnish the metal. Use a fairly tame version, and I don’t think you will see appreciable metal removal. If you must go chemical, try some of the acidic cleaner solutions like Brite Boy, or the grade of Naval Jelly for copper. Put just a small drop on a Q-tip as an applicator and tool. You might try that very light liquid silver cleaner. Needless to say, all these methods require scrupulous washing and drying. Ed Price ed.pr...@cubic.com blocked::mailto:ed.pr...@cubic.com WB6WSN NARTE Certified EMC Engineer Electromagnetic Compatibility Lab Cubic Defense Applications San Diego, CA USA 858-505-2780 Military Avionics EMC Is Our Specialty From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of McInturff, Gary Sent: Tuesday, February 15, 2011 7:48 AM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Cleaning of EMC mating surfaces - suggestions I need to clean some metallic mating surfaces and since I have to use this same equipment in the future, I don’t want to just lightly sand the surfaces if I can help it. I suppose like gold contact I might be able to use the old eraser trick but I would like to chemically clean the surfaces to remove any coating contamination or oxidation without taking off the coating or the underlying metal plating – any body got a favorite cleaner? I have a support PC made by one of the biggie manufacturers that I desperately need to meet class B emissions because it is the only one I have to drive the test item. Unfortunately it has what I’m sure the Mechanical Engineer thinks is a robust solution for the I/O panel for user added cards. From a brand new one time user perspective it is pretty slick, no tools need, just snap a couple of plastic fulcrums to different position to remove or add a card. The card face mates into a very delicate little lace interface of punched tin plated “?” gasket that conforms at several points along the I/O card face panel and the inside of the computer housing. The fit happens exactly once as far as I can tell. It mostly crushes and distorts and just leaves a cap running between the I/O card faceplate and the computer chassis. I’ll give them style points – but I’m going to whack somebody over the head for the execution. (I think I hear a wh-mbulance in the distance) Gary McInturff - 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://product-compliance.oc.ieee.org/ 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 emcp...@radiusnorth.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher j.bac...@ieee.org David Heald dhe...@gmail.com
Cleaning of EMC mating surfaces - suggestions
I need to clean some metallic mating surfaces and since I have to use this same equipment in the future, I don’t want to just lightly sand the surfaces if I can help it. I suppose like gold contact I might be able to use the old eraser trick but I would like to chemically clean the surfaces to remove any coating contamination or oxidation without taking off the coating or the underlying metal plating – any body got a favorite cleaner? I have a support PC made by one of the biggie manufacturers that I desperately need to meet class B emissions because it is the only one I have to drive the test item. Unfortunately it has what I’m sure the Mechanical Engineer thinks is a robust solution for the I/O panel for user added cards. From a brand new one time user perspective it is pretty slick, no tools need, just snap a couple of plastic fulcrums to different position to remove or add a card. The card face mates into a very delicate little lace interface of punched tin plated “?” gasket that conforms at several points along the I/O card face panel and the inside of the computer housing. The fit happens exactly once as far as I can tell. It mostly crushes and distorts and just leaves a cap running between the I/O card faceplate and the computer chassis. I’ll give them style points – but I’m going to whack somebody over the head for the execution. (I think I hear a wh-mbulance in the distance) Gary McInturff - 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://product-compliance.oc.ieee.org/ 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 emcp...@radiusnorth.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher j.bac...@ieee.org David Heald dhe...@gmail.com
RE: Considering a consultant to help with semi-anechoic chamber relocation and performance improvements
Preference for spectrum analyzers and network analyzers are like computers, some like PCs some like Apples. Which is better? Depends on the person and intended use. Dennis Ward Director of Engineering American Certification Body Certification Resource for the Wireless Industry http://www.acbcert.com 703-847-4700 fax 703-847-6888 direct - 703-880-4841 From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of Derek Walton Sent: Tuesday, February 15, 2011 3:17 AM To: bfr...@direct.ca; emc-p...@ieee.org Subject: Re: Considering a consultant to help with semi-anechoic chamber relocation and performance improvements Hi Barry, Having ridden in a BMW @ 120+ I can truly say that it wasn't a comfortable experience, in fact it's a common recurring nightmare along with falling off structures. The same is not true for Audi, but my point was about perception. As for the RS? Thats an opinion formed by using it, perhaps the best opinion? :-) Derek. -Original Message- From: Barry Rowland bfr...@direct.ca To: Derek Walton lfresea...@aol.com; emc-p...@ieee.org Sent: Tue, Feb 15, 2011 2:10 am Subject: Re: Considering a consultant to help with semi-anechoic chamber relocation and performance improvements Derek; you wrote: As for RS. Well I think of them like BMW's. All image Very expensive image... When you want to feel comfortable driving at 220+ km/h (136 mph, for the metric-challenged), the image of BMW (or Audi, or...) becomes a very desirable reality ... Maybe the same can be said about that other Bavarian manufacturer, RS ;-) barry rowland salo, finland P.S. I've worked, as an Application Engineer, with both companies' equipment. On 15-Feb-11, at 2:46 AM, Derek Walton wrote: Hi Jim, First. Get the conflict of interest warning out of the way... Second. Almost everything you need answers to are one of the reasons we set up EMC LAB Services. Suggest you contact Wally Pilat there. I'm still using my 8566 SA's. As yet they still do everything I need. I had the collie conversion done, very nice too. As for RS. Well I think of them like BMW's. All image Very expensive image... There are options from Agilent, Teseq etc that are far better in North America. Cheers. Derek Walton L f research Sent from my iPhone On Feb 14, 2011, at 5:15 PM, jim.eich...@schneider-electric.com wrote: Hi everyone: We are about to move (groan) and while this generally is a pain, it provides the opportunity to fix a few problems along the way. Our 3m SAC is usable, and indeed gets fairly heavy use, but is not as good as I think it could be, in a few ways: - Our emissions measurement correlation to real labs is OK but could be better, particularly on conducted emissions - Our aging HP rack (the classic 856x series) is getting old and is starting to be costly to maintain - time to switch? - We have always just had a manual turntable and would like to see what's involved in going with a motorized turntable and controller - We have aging cones, many with broken tips - maybe not an issue, but maybe it is? - We haven't researched what it would take to go past 1GHz with our RE measurements, but we need to - Etc. I think it would be worthwhile to have someone who is an expert in design and troubleshooting of SAC's and EMC instrumentation come here, give us a once-over, make recommendations for improvements that we could implement as part of the move, and perhaps participate in the teardown and relocation of the chamber (not as simple as it sounds) or recommend someone who could. If you are interested and qualified, or know someone who is, please reply to me off-line at jim.eich...@ca.schneider-electric.com. I would prefer somebody at least somewhat local - we are in the Vancouver BC area. Thanks, Jim __ __ Jim Eichner | Schneider Electric | Renewable Energies Business | CANADA | Compliance Engineering Manager Site: www.schneider-electric.com/renewable-energies http://www.schneider-electric.com/renewable-energies | Address: 8999 Nelson Way, Burnaby, BC, V5A 4B5 - 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://product-compliance.oc.ieee.org/ Graphics (in well-used formats), large files, etc. can be posted to that URL. Website:
Re: [PSES] Considering a consultant to help with semi-anechoic chamber relocation and performance improvements
Woof! I was interested in finding out more about the collie conversion. I have a retriever and wonder if she’d be jealous. I can see I'm in the doghouse, sorry :-( -Original Message- From: Mike Violette mi...@wll.com To: 'Derek Walton' lfresea...@aol.com; EMC-PSTC@LISTSERV.IEEE.ORG Sent: Tue, Feb 15, 2011 4:37 am Subject: RE: [PSES] Considering a consultant to help with semi-anechoic chamber relocation and performance improvements Woof! I was interested in finding out more about the collie conversion. I have a retriever and wonder if she’d be jealous. My first 8468B (vintage now, 21 years old) still has a great heartbeat…I’ll probably be buried with her. Mike Violette mi...@wll.com Washington Laboratories Radio Frequency and Electrical Safety 301 216-1500 cell: 240 401 1388 From: Derek Walton [mailto:lfresea...@aol.com mailto:lfresea...@aol.com? ] Sent: Monday, February 14, 2011 9:04 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] Considering a consultant to help with semi-anechoic chamber relocation and performance improvements Doggone iPhone spell check! Colour, or color depending on where you're from. My bad. -Original Message- From: Price, Edward ed.pr...@cubic.com To: IEEE EMC forum emc-p...@ieee.org Sent: Mon, Feb 14, 2011 7:02 pm Subject: RE: Considering a consultant to help with semi-anechoic chamber relocation and performance improvements From: emc-p...@ieee.org mailto:emc-p...@ieee.org [mailto:emc-p...@ieee.org mailto:emc-p...@ieee.org? ] On Behalf Of Derek Walton Sent: Monday, February 14, 2011 4:46 PM To: jim.eich...@schneider-electric.com mailto:jim.eich...@schneider-electric.com Cc Hi Jim, I'm still using my 8566 SA's. As yet they still do everything I need. I had the collie conversion done, very nice too. Derek Walton L f research Collie conversion? Ed Price ed.pr...@cubic.com WB6WSN NARTE Certified EMC Engineer Electromagnetic Compatibility Lab Cubic Defense Applications San Diego, CA USA 858-505-2780 Military Avionics EMC Is Our Specialty - 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 mailto:emc-p...@ieee.org All emc-pstc postings are archived and searchable on the web at http://product-compliance.oc.ieee.org/ http://product-compliance.oc.ieee.org/ Graphics (in well-used formats), large files, etc. can be posted to that URL. Website: http://www.ieee-pses.org/ http://www.ieee-pses.org/ Instructions: http://listserv.ieee.org/request/user-guide.html http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas emcp...@radiusnorth.net mailto:emcp...@radiusnorth.net Mike Cantwell mcantw...@ieee.org mailto:mcantw...@ieee.org For policy questions, send mail to: Jim Bacher j.bac...@ieee.org mailto:j.bac...@ieee.org David Heald dhe...@gmail.com mailto:dhe...@gmail.com - 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 mailto:emc-p...@ieee.org All emc-pstc postings are archived and searchable on the web at http://product-compliance.oc.ieee.org/ http://product-compliance.oc.ieee.org/ Graphics (in well-used formats), large files, etc. can be posted to that URL. Website: http://www.ieee-pses.org/ http://www.ieee-pses.org/ Instructions: http://listserv.ieee.org/request/user-guide.html http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas emcp...@radiusnorth.net mailto:emcp...@radiusnorth.net Mike Cantwell mcantw...@ieee.org mailto:mcantw...@ieee.org For policy questions, send mail to: Jim Bacher j.bac...@ieee.org mailto:j.bac...@ieee.org David Heald dhe...@gmail.com mailto:dhe...@gmail.com - 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://product-compliance.oc.ieee.org/ 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 emcp...@radiusnorth.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher
Re: Considering a consultant to help with semi-anechoic chamber relocation and performance improvements
Hi Barry, Having ridden in a BMW @ 120+ I can truly say that it wasn't a comfortable experience, in fact it's a common recurring nightmare along with falling off structures. The same is not true for Audi, but my point was about perception. As for the RS? Thats an opinion formed by using it, perhaps the best opinion? :-) Derek. -Original Message- From: Barry Rowland bfr...@direct.ca To: Derek Walton lfresea...@aol.com; emc-p...@ieee.org Sent: Tue, Feb 15, 2011 2:10 am Subject: Re: Considering a consultant to help with semi-anechoic chamber relocation and performance improvements Derek; you wrote: As for RS. Well I think of them like BMW's. All image Very expensive image... When you want to feel comfortable driving at 220+ km/h (136 mph, for the metric-challenged), the image of BMW (or Audi, or...) becomes a very desirable reality ... Maybe the same can be said about that other Bavarian manufacturer, RS ;-) barry rowland salo, finland P.S. I've worked, as an Application Engineer, with both companies' equipment. On 15-Feb-11, at 2:46 AM, Derek Walton wrote: Hi Jim, First. Get the conflict of interest warning out of the way... Second. Almost everything you need answers to are one of the reasons we set up EMC LAB Services. Suggest you contact Wally Pilat there. I'm still using my 8566 SA's. As yet they still do everything I need. I had the collie conversion done, very nice too. As for RS. Well I think of them like BMW's. All image Very expensive image... There are options from Agilent, Teseq etc that are far better in North America. Cheers. Derek Walton L f research Sent from my iPhone On Feb 14, 2011, at 5:15 PM, jim.eich...@schneider-electric.com wrote: Hi everyone: We are about to move (groan) and while this generally is a pain, it provides the opportunity to fix a few problems along the way. Our 3m SAC is usable, and indeed gets fairly heavy use, but is not as good as I think it could be, in a few ways: - Our emissions measurement correlation to real labs is OK but could be better, particularly on conducted emissions - Our aging HP rack (the classic 856x series) is getting old and is starting to be costly to maintain - time to switch? - We have always just had a manual turntable and would like to see what's involved in going with a motorized turntable and controller - We have aging cones, many with broken tips - maybe not an issue, but maybe it is? - We haven't researched what it would take to go past 1GHz with our RE measurements, but we need to - Etc. I think it would be worthwhile to have someone who is an expert in design and troubleshooting of SAC's and EMC instrumentation come here, give us a once-over, make recommendations for improvements that we could implement as part of the move, and perhaps participate in the teardown and relocation of the chamber (not as simple as it sounds) or recommend someone who could. If you are interested and qualified, or know someone who is, please reply to me off-line at jim.eich...@ca.schneider-electric.com. I would prefer somebody at least somewhat local - we are in the Vancouver BC area. Thanks, Jim _ ___ Jim Eichner | Schneider Electric | Renewable Energies Business | CANADA | Compliance Engineering Manager Site: www.schneider-electric.com/renewable-energies http://www.schneider-electric.com/renewable-energies | Address: 8999 Nelson Way, Burnaby, BC, V5A 4B5 - 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 mailto:emc-p...@ieee.org emc-p...@ieee.org All emc-pstc postings are archived and searchable on the web at http://product-compliance.oc.ieee.org/ http://product-compliance.oc.ieee.org/ Graphics (in well-used formats), large files, etc. can be posted to that URL. Website: http://www.ieee-pses.org/ http://www.ieee-pses.org/ Instructions: http://listserv.ieee.org/request/user-guide.html http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html
RE: [PSES] Considering a consultant to help with semi-anechoic chamber relocation and performance improvements
Woof! I was interested in finding out more about the collie conversion. I have a retriever and wonder if she’d be jealous. My first 8468B (vintage now, 21 years old) still has a great heartbeat…I’ll probably be buried with her. Mike Violette mi...@wll.com Washington Laboratories Radio Frequency and Electrical Safety 301 216-1500 cell: 240 401 1388 From: Derek Walton [mailto:lfresea...@aol.com] Sent: Monday, February 14, 2011 9:04 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] Considering a consultant to help with semi-anechoic chamber relocation and performance improvements Doggone iPhone spell check! Colour, or color depending on where you're from. My bad. -Original Message- From: Price, Edward ed.pr...@cubic.com To: IEEE EMC forum emc-p...@ieee.org Sent: Mon, Feb 14, 2011 7:02 pm Subject: RE: Considering a consultant to help with semi-anechoic chamber relocation and performance improvements From: emc-p...@ieee.org mailto:emc-p...@ieee.org [mailto:emc-p...@ieee.org mailto:emc-p...@ieee.org? ] On Behalf Of Derek Walton Sent: Monday, February 14, 2011 4:46 PM To: jim.eich...@schneider-electric.com mailto:jim.eich...@schneider-electric.com Cc Hi Jim, I'm still using my 8566 SA's. As yet they still do everything I need. I had the collie conversion done, very nice too. Derek Walton L f research Collie conversion? Ed Price ed.pr...@cubic.com WB6WSN NARTE Certified EMC Engineer Electromagnetic Compatibility Lab Cubic Defense Applications San Diego, CA USA 858-505-2780 Military Avionics EMC Is Our Specialty - 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 mailto:emc-p...@ieee.org All emc-pstc postings are archived and searchable on the web at http://product-compliance.oc.ieee.org/ http://product-compliance.oc.ieee.org/ Graphics (in well-used formats), large files, etc. can be posted to that URL. Website: http://www.ieee-pses.org/ http://www.ieee-pses.org/ Instructions: http://listserv.ieee.org/request/user-guide.html http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas emcp...@radiusnorth.net mailto:emcp...@radiusnorth.net Mike Cantwell mcantw...@ieee.org mailto:mcantw...@ieee.org For policy questions, send mail to: Jim Bacher j.bac...@ieee.org mailto:j.bac...@ieee.org David Heald dhe...@gmail.com mailto:dhe...@gmail.com - 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 mailto:emc-p...@ieee.org All emc-pstc postings are archived and searchable on the web at http://product-compliance.oc.ieee.org/ http://product-compliance.oc.ieee.org/ Graphics (in well-used formats), large files, etc. can be posted to that URL. Website: http://www.ieee-pses.org/ http://www.ieee-pses.org/ Instructions: http://listserv.ieee.org/request/user-guide.html http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas emcp...@radiusnorth.net mailto:emcp...@radiusnorth.net Mike Cantwell mcantw...@ieee.org mailto:mcantw...@ieee.org For policy questions, send mail to: Jim Bacher j.bac...@ieee.org mailto:j.bac...@ieee.org David Heald dhe...@gmail.com mailto:dhe...@gmail.com - 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://product-compliance.oc.ieee.org/ 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 emcp...@radiusnorth.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher j.bac...@ieee.org David Heald dhe...@gmail.com
Re: Considering a consultant to help with semi-anechoic chamber relocation and performance improvements
Derek; you wrote: As for RS. Well I think of them like BMW's. All image Very expensive image... When you want to feel comfortable driving at 220+ km/h (136 mph, for the metric-challenged), the image of BMW (or Audi, or...) becomes a very desirable reality ... Maybe the same can be said about that other Bavarian manufacturer, RS ;-) barry rowland salo, finland P.S. I've worked, as an Application Engineer, with both companies' equipment. On 15-Feb-11, at 2:46 AM, Derek Walton wrote: Hi Jim, First. Get the conflict of interest warning out of the way... Second. Almost everything you need answers to are one of the reasons we set up EMC LAB Services. Suggest you contact Wally Pilat there. I'm still using my 8566 SA's. As yet they still do everything I need. I had the collie conversion done, very nice too. As for RS. Well I think of them like BMW's. All image Very expensive image... There are options from Agilent, Teseq etc that are far better in North America. Cheers. Derek Walton L f research Sent from my iPhone On Feb 14, 2011, at 5:15 PM, jim.eich...@schneider-electric.com wrote: Hi everyone: We are about to move (groan) and while this generally is a pain, it provides the opportunity to fix a few problems along the way. Our 3m SAC is usable, and indeed gets fairly heavy use, but is not as good as I think it could be, in a few ways: - Our emissions measurement correlation to real labs is OK but could be better, particularly on conducted emissions - Our aging HP rack (the classic 856x series) is getting old and is starting to be costly to maintain - time to switch? - We have always just had a manual turntable and would like to see what's involved in going with a motorized turntable and controller - We have aging cones, many with broken tips - maybe not an issue, but maybe it is? - We haven't researched what it would take to go past 1GHz with our RE measurements, but we need to - Etc. I think it would be worthwhile to have someone who is an expert in design and troubleshooting of SAC's and EMC instrumentation come here, give us a once-over, make recommendations for improvements that we could implement as part of the move, and perhaps participate in the teardown and relocation of the chamber (not as simple as it sounds) or recommend someone who could. If you are interested and qualified, or know someone who is, please reply to me off-line at jim.eich...@ca.schneider-electric.com. I would prefer somebody at least somewhat local - we are in the Vancouver BC area. Thanks, Jim _ ___ Jim Eichner | Schneider Electric | Renewable Energies Business | CANADA | Compliance Engineering Manager Site: www.schneider-electric.com/renewable-energies http://www.schneider-electric.com/renewable-energies | Address: 8999 Nelson Way, Burnaby, BC, V5A 4B5 - 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 mailto:emc-p...@ieee.org emc-p...@ieee.org All emc-pstc postings are archived and searchable on the web at http://product-compliance.oc.ieee.org/ http://product-compliance.oc.ieee.org/ Graphics (in well-used formats), large files, etc. can be posted to that URL. Website: http://www.ieee-pses.org/ http://www.ieee-pses.org/ Instructions: http://listserv.ieee.org/request/user-guide.html http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas mailto:emcp...@radiusnorth.net emcp...@radiusnorth.net Mike Cantwell mailto:mcantw...@ieee.org mcantw...@ieee.org For policy questions, send mail to: Jim Bacher mailto:j.bac...@ieee.org j.bac...@ieee.org David Heald mailto:dhe...@gmail.com dhe...@gmail.com - This message is from the IEEE Product Safety Engineering Society
