RE: Hygroscopic Dust Troubleshooting
Texas Instruments (TI) has switched to a palladium lead finish to address European environmental concerns associated with lead disposal. There have been documented failures of the hygroscopic dust test attributed to palladium coated leads. TI is aware of the problem, but to my knowledge nothing has been done about it. -Original Message- From: Kretsch, John Sent: Monday, September 18, 2000 11:06 AM To: 'n...@world.std.com'; 'EMC PSTC'; 'TREG Newsgroup' Subject: Hygroscopic Dust Troubleshooting I thought I would try to contact the collective on this one... We have a shelf system that is failing GR-63 hygro dust with excessive bit errors (unit did pass Gaseous contaminants no problem). Air is filtered. Anyone have experiences that they would like to share (non-proprietary of course) about how to trouble-shoot and solve this problem? This was the only GR-63 test to have a failure. Regards, John K.
RE: Hygroscopic Dust Troubleshooting
John, Excessive voltage gradients are what causes failures in this test. I'd suggest looking at each chip and finding the worst case voltage gradients between pins. You can start with your supply voltage (battery or AC) to ground separations. If you have a voltage gradient in excess of 11V/thousandth of an inch, this would be a good place to start looking for issues. The best, but most painful short-term solution, would be a design re-layout of the offending separation. I've never used conformal coating due to other issues (reliability, thermals) but that may be a way to go as well depending on your product. You may also want to go to a better air filter if you have the space and/or thermal margin. Good luck, Marko Radojicic email: ma...@caspiannetworks.com phone: 408/382-5206 fax: tbd -Original Message- From: Kretsch, John [mailto:john_kret...@adc.com] Sent: Monday, September 18, 2000 8:06 AM To: 'n...@world.std.com'; 'EMC PSTC'; 'TREG Newsgroup' Subject: Hygroscopic Dust Troubleshooting I thought I would try to contact the collective on this one... We have a shelf system that is failing GR-63 hygro dust with excessive bit errors (unit did pass Gaseous contaminants no problem). Air is filtered. Anyone have experiences that they would like to share (non-proprietary of course) about how to trouble-shoot and solve this problem? This was the only GR-63 test to have a failure. Regards, John K.
Hygroscopic Dust Troubleshooting
I thought I would try to contact the collective on this one... We have a shelf system that is failing GR-63 hygro dust with excessive bit errors (unit did pass Gaseous contaminants no problem). Air is filtered. Anyone have experiences that they would like to share (non-proprietary of course) about how to trouble-shoot and solve this problem? This was the only GR-63 test to have a failure. Regards, John K.
RE: Near Field Versus Far Field
Hi Don. Thanks for the example. Hearing about these kinds of experiences makes troubleshooting easier for everyone I think. Thanks to Chris Maxwell for his contribution too. It'd be great to hear more stories from the experience of some other members of the group. I think your approach was great for the problem you had, but wanted to say it doesn't always yield the quickest answer. To add to the examples: Most of the equipment we test has a large number of (mostly long) communication cable attachments. We had a recent experience where the equipment was over the limit due to emissions being conducted onto one such cable. Although with the cable attached the emissions from the cable were high, the actual emissions from the source in the near field were low (most of the noise was directly conducted onto the cable rather than radiated from the problem circuit board). Near field probing wouldn't have told us any quicker what the source was than the educated guessing + far-field measurement approach we took. In our case though, just from the frequency of the emission we already knew which circuit board was the culprit so it was just a matter of finding out what the coupling mechanism was to the cable. Under different circumstances though, I certainly agree that if you can use near field probes to home in on an unknown source, that would be likely to yield an answer quicker than trial and error. I guess I'm trying to say near field probing is useful, but doesn't always work. Because there can be such differences in the emissions measured in the near field as opposed to the far field it isn't always the best method. Regards, Pete. - Please note: The views, opinions and information expressed and/or contained herein do not necessarily reflect the opinions or views of Foxboro, the organisation/s through which this communication was transmitted nor any other third party, unless explicitly stated so. Peter Poulos (Hardware Design Engineer) Foxboro Australia At 12:16 AM 16/09/2000, umbdenst...@sensormatic.com wrote: Hello Joe, Consider the following -- in the far field (3 or 10 meters), a plane wave is monitored. In the near field, using either commercial or lab built near-field probes, either E field or H field emissions will be monitored separately. The E, H components will be isolated. The emission may be identified with a probe, but the effective radiator (culprit antenna) for that emission might be missed. The above is an answer to the question. If you would like a real life experience describing the difference, read the example that follows. On a recent product we had a band of frequencies of non-compliant emissions that were somewhat polarity sensitive. We observed a particular signature of the emission (modulation on a pulse) at 3 meters using a bilog antenna. Using a direct contact E field probe, the pulse frequency showed up at high levels around the processor and DSP chip, but not with the signature. We were able to find a trace of the corresponding polarity that was suspect and had a similar signature, and at a lower level than we found around the processor and DSP chip. Looking at the schematic, we identified a reasonable fix. But that only helped part of the profile. We then sniffed with a non-contact magnetic loop probe and found another viable culprit. The fix implemented brought the product into compliance with reasonable margin. Neither fix by itself brought the product into compliance. Both were necessary, required a minimum amount of components and contributed to rationale source suppression. We did not introduce balloon squeezing, i.e., beat down an emission at one frequency and see it pop up at another frequency. This kind of isolation is more effective than monitoring the far field emission, hypothesizing the culprit antenna while analyzing the schematic. We have done it both ways. The near field approach takes a little more time to set up but saves time in the long run. Or maybe we were just lucky! Best regards, Don -- From: marti...@appliedbiosystems.com[SMTP:marti...@appliedbiosystems.com] Reply To: marti...@appliedbiosystems.com Sent: Thursday, September 14, 2000 1:07 PM To: emc-p...@majordomo.ieee.org Subject: Near Field Versus Far Field I am having a difficult time answering the following question for a non-technical person. Hopefully, someone can put the answer into a language that a non-technical person can understand. We have a 400 MHz clock and are failing radiated emissions at 10 meters by 10 dB at 400 MHz. We bring the product back to our lab and start making modifications on the clock circuit and taking measurements with a near field probe. With these modifications and measuring with a near field probe, we realize a 10 dB reduction in emissions at 400 MHz. Why would we not see the same reduction
RE: Near Field Versus Far Field
Thanks Michael. I agree completely. Even though my comments probably didn't reflect it too well(hastily bashed out late on a Friday afternoon), changing one thing at a time is how I'd normally work on these problems. At 10:59 PM 15/09/2000, michael.sundst...@nokia.com wrote: I might add that the BEST way to do this is to only change one thing at a time, then retest. It's hard to tell what single change of the multiple changes attempted actually did the change. Michael Sundstrom Nokia Mobile Phones, PCC EMC Technician cube 4E : 390B phone: 972-374-1462 mobile: 817-917-5021 michael.sundst...@nokia.com amateur call: KB5UKT -Original Message- From: EXT Peter Poulos [mailto:pet...@foxboro.com.au] Sent: Friday, September 15, 2000 1:38 AM To: marti...@appliedbiosystems.com; emc-p...@majordomo.ieee.org Subject: Re: Near Field Versus Far Field Hi Joe. You asked for an explanation as to why the difference between the near and far field results. I think the replies so far have probably answered that question. I've tried here to give some help with the real problem of solving the excess emissions. From my own experience and discussions with colleagues, I've found you definitely need to do some (if not most) of the trouble-shooting while at the test site. Finding a problem then just returning to the lab to solve it usually leaves you with a lot of questions unanswered. That might not be much help this time but perhaps next time? The following is how I'd go about tackling the problem. I'm curious to see if there's anyone in the group who disagrees with my approach. As with any EMC problem, you've got to consider the source, the transmission medium and the victim. Obviously there's nothing you can change about the victim (the test antenna) but you should be able to narrow it down to work out the real source, and the means by which it is being radiated. For clues to the problem's cause to begin with I usually ask: (1) For the problem frequency, what's the most likely source? (2) For the problem frequency, what's the most likely source antenna? At 400MHz the wavelength is a bit under 1m (3x10^8 / 400x10^6 = 75cm) so any short cables (or at this frequency, maybe even long PCB track - like back-plane tracks?) that might make nice 1/2 wavelength or 1/4 wavelength dipole antennas would be the first I'd check out. Could also be a slot antenna effect in your enclosure - any seams or gaps in the box that are in this ball-park? Usually I'd try isolating the source by either disconnecting cables, turning off or unplugging cards, attenuating cable emissions with copious amounts of ferrite clamps etc and get the test engineer to do a spot check at the problem frequency as I tried eliminating each suspect. This is where the buckets of ferrite cable clamps, rolls of aluminium foil, shielding mesh and earthing straps come in to play. Here's where that near-field probe might come in handy too. This kind of troubleshooting though often requires a fairly intimate understanding of the way the equipment under test works so you can be confident about your assumptions and the conclusions you draw from the observed results. If the design engineer isn't actually at the test site, she/he should at least be accessible by phone to discuss the problems and make suggestions as to what to try. Using this technique, you can usually narrow it down fairly quickly to the source and antenna. If there's time, and its practical then I'd try some quick modifications to the problem circuit that's the source of the noise in order to get some reference of what changes cause what kind of reduction in the emission levels. Quite often though, you have to be aware that a change may solve the emission problem at the frequency you're working on, but result in the energy appearing elsewhere in the radiated spectrum causing the equipment to exceed the limit at some other frequency, especially if you've just modified the source antenna and not the signal causing the emission. Also note - although its difficult when you're rushing to get the problem fixed, it pays to make good records of what you change and what the results are - can help a lot later on. If you have the time at site to try a few different options (that are repeatable later), and get the highest 3 or 4 emission levels for each option at site, then if you can't find a solution you're happy with at the test site, it gives you a reference to work with back in the lab. For example, say that you found that: Design Change #1 resulted in 6dB reduction in the emission at 400MHz with other peaks (below the pass/fail limit) at 200MHz (3dB under), and 800MHz(8dB under) Design Change #2 resulted in 20dB reduction in the emission at 400MHz but caused the peak at 200MHz that went over the limit by 6dB with the peak at 800MHz reducing to 10dB under the limit. Design Change #3 resulted in 3dB reduction in the emission at 400MHz with other peaks (below the pass/fail limit) at 200MHz
RE: EMC/EMI Training
These are great books for EMC design. Can the group recommend a similar list of books for troubleshooting EMC designs? Richard Woods -- From: Ron Pickard [SMTP:rpick...@hypercom.com] Sent: Friday, September 15, 2000 5:00 PM To: emc-p...@ieee.org Subject: Re: EMC/EMI Training Hello to all, IMO, three of the most informative books from a practical intro approach into the world of EMC are (not in any particular order): 1. Henry W. Ott, Noise Reduction Techniques in Electronic Systems, John Wiley and Sons, ISBN 0-471-85068-3, 2. Mark Montrose, EMC and the Printed Circuit Board - Design, Theory and Layout Made Simple, IEEE Press, ISBN 0-7803-4703-X, and 3. Michel Mardiguian, Controlling Radiated Emissions by Design, Van Nostrand Reinhold, ISBN 0-442-00949-6. As for instruction, try Kimmel Gerke's (www.emiguru.com) EMI Made Simple seminars. The material covered is complete, can be customized and can be presented in-house. Note: To all in the group. This message was, and should not be contrued as, an advertisement for any of the entities identified above. I am just relaying my own opinion. I hope this helps. Best regards, Ron Pickard rpick...@hypercom.com - Original Message - From: Keith Zell To: emc-p...@ieee.org Sent: Friday, September 15, 2000 10:25 AM Subject: EMC/EMI Training What training classes and/or books would you recommend for the best practical EMI/EMC training from a systems approach? I am particularly interested in grounding/shielding issues and fixes. Any help would be appreciated. B. Keith Zell Electrical Design Engineer PMI Food Equipment Group Troy, OH 45374 (937) 332-3067 (ph) (937) 332-3007 (fax) zell...@pmifeg.com --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org
Re: EMC/EMI Training
Richard, at the risk of pushing my own barrow L F Research is preparing to host a 2 day course on EMC Engineering ( 1st week in Nov. ). This course will focus more on the lessons learnt during our last year of engineering and testing designs that came into our facility Very much a practical engineering course. The course notes will be a mini-design guide. We even offer an optional EMC lab tour and perform some simple demonstrations. We do need to go back to classic EMC work at times, and for this we use Henry Ott's excellent book ( why reinvent the wheel? ). Details are being put into our website as we speak, but for the next few days contact me off-line for more info. Thanks, Derek. --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org
Workshop 2000 + Vendors' Night, Boxborough MA, 15 NOV 00
NPSS - Workshop 2000 Vendors' Night The Northeast Product Safety Society, Inc. (NPSS) offers Workshop 2000 and the 6th Annual Vendors' Night. These paired events will be held at the Boxborough Woods (Holiday Inn) in Boxborough MA on November 15, 2000. WORKSHOP 2000 runs from 11 a.m. to 5:45 p.m. Twenty-seven sessions, worldwide in scope, comprise six technical tracks. The sessions include, among others, Electrical Product Safety Compliance, EMC, Telecom, SEMI, Laser Safety, the EC Directives/CE Markings, the WEEE Directive, and Chinese compliance. Reservations are required for entry to the technical sessions. A schedule can be found on NPSS's website (and your reservations can be entered at: www.nepss.org VENDORS' NIGHT registration opens at 5 p.m.; the Exhibition Hall is open from 5:30 - 9:30 p.m. Fifty suppliers to the Electrical Product Safety, EMC and Telecom compliance trades will offer their wares. The largest show of its type in the U.S.., this is a singular opportunity to visit with the test labs and suppliers of test equipment, components services to the compliance trade. It's also a great opportunity to network with your compliance colleagues. The costs of these events are borne by NPSS, Inc. as a component of their educational program; thus, all Workshop 2000 sessions are free as is the Vendors' Night. The only cost, optional at that, is for the dinner-buffet (which is free to members of NPSS, Inc. and US$15.00 to others). Dinner reservations (required) can also be made at www.nepss.org. Although vendor space is limited at this juncture, vendors interested in participating should contact: Robert O.Chaplis chapl...@genrad.com NPSS, Inc. is a non-profit 501(c)(3) Corporation, chartered in Massachusetts. ### REF:0VENDNEWS.1 --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org
A14 to EN61000-3-2 Did it pass?
Was Amendment 14 accepted? I understood that it was suppose to be voted on last Friday. Joe --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org
RE: A14 to EN61000-3-2 Did it pass?
Follow-on question: Just to be really sure I haven't missed anything, A14 is a clarification of requirements and test methods and does nothing to postpone the drop dead date for this standard, right? Thanks, Jim -Original Message- From: Tolbert, J. Joe x1105 [mailto:jtolb...@genicom.com] Sent: Monday, September 18, 2000 10:34 AM To: 'emc-p...@ieee.org' Subject: A14 to EN61000-3-2 Did it pass? Was Amendment 14 accepted? I understood that it was suppose to be voted on last Friday. Joe --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org
RE: A14 to EN61000-3-2 Did it pass?
On a similar note, our Notified Body (SEE) informed us today that they will accept use of prA14 in a TCF. Richard Woods -- From: Tolbert, J. Joe x1105 [SMTP:jtolb...@genicom.com] Sent: Monday, September 18, 2000 1:34 PM To: 'emc-p...@ieee.org' Subject: A14 to EN61000-3-2 Did it pass? Was Amendment 14 accepted? I understood that it was suppose to be voted on last Friday. Joe --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org
RE: A14 to EN61000-3-2 Did it pass?
A14 moves all equipment out of Class D except for personal computers and televisions, and the 75 lower limit remains. However, the dop is scheduled to be after 2001-01-01. Until then, our Notified Body (SEE) is accepting prA14 for use in a TCF. Richard Woods -- From: Jim Eichner [SMTP:jim.eich...@xantrex.com] Sent: Monday, September 18, 2000 2:30 PM To: 'EMC-PSTC - forum' Subject: RE: A14 to EN61000-3-2 Did it pass? Follow-on question: Just to be really sure I haven't missed anything, A14 is a clarification of requirements and test methods and does nothing to postpone the drop dead date for this standard, right? Thanks, Jim -Original Message- From: Tolbert, J. Joe x1105 [mailto:jtolb...@genicom.com] Sent: Monday, September 18, 2000 10:34 AM To: 'emc-p...@ieee.org' Subject: A14 to EN61000-3-2 Did it pass? Was Amendment 14 accepted? I understood that it was suppose to be voted on last Friday. Joe --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org
RE: EMC/EMI Training
Hi Richard, For troubleshooting, you might want to look for a book recently authored by Michel Mardiguian entitled EMI Troubleshooting Techniques (copyright 2000). Its published by McGraw Hill, ISBN 0-07-134418-7. I have only just purchased a copy at Barnes Noble and have not had an opportunity to evaluate it thoroughly. Best regards, Ron Pickard rpick...@hypercom.com WOODS@sensorm atic.com To: emc-p...@ieee.org Sent by: cc: owner-emc-pstSubject: RE: EMC/EMI Training c...@ieee.org 09/18/00 06:05 AM Please respond to WOODS These are great books for EMC design. Can the group recommend a similar list of books for troubleshooting EMC designs? Richard Woods -- From: Ron Pickard [SMTP:rpick...@hypercom.com] Sent: Friday, September 15, 2000 5:00 PM To: emc-p...@ieee.org Subject: Re: EMC/EMI Training Hello to all, IMO, three of the most informative books from a practical intro approach into the world of EMC are (not in any particular order): 1. Henry W. Ott, Noise Reduction Techniques in Electronic Systems, John Wiley and Sons, ISBN 0-471-85068-3, 2. Mark Montrose, EMC and the Printed Circuit Board - Design, Theory and Layout Made Simple, IEEE Press, ISBN 0-7803-4703-X, and 3. Michel Mardiguian, Controlling Radiated Emissions by Design, Van Nostrand Reinhold, ISBN 0-442-00949-6. As for instruction, try Kimmel Gerke's (www.emiguru.com) EMI Made Simple seminars. The material covered is complete, can be customized and can be presented in-house. Note: To all in the group. This message was, and should not be contrued as, an advertisement for any of the entities identified above. I am just relaying my own opinion. I hope this helps. Best regards, Ron Pickard rpick...@hypercom.com - Original Message - From: Keith Zell To: emc-p...@ieee.org Sent: Friday, September 15, 2000 10:25 AM Subject: EMC/EMI Training What training classes and/or books would you recommend for the best practical EMI/EMC training from a systems approach? I am particularly interested in grounding/shielding issues and fixes. Any help would be appreciated. B. Keith Zell Electrical Design Engineer PMI Food Equipment Group Troy, OH 45374 (937) 332-3067 (ph) (937) 332-3007 (fax) zell...@pmifeg.com --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org --- This message is from the IEEE EMC
RE: EMC/EMI Training
I too ordered that book from Barnes and Nobel for $60, then I found out that Amazon.com sells it for $48. Next time, I will check out both sites before ordering. Richard Woods -- From: Ron Pickard [SMTP:rpick...@hypercom.com] Sent: Monday, September 18, 2000 3:15 PM To: wo...@sensormatic.com Cc: emc-p...@ieee.org Subject: RE: EMC/EMI Training Hi Richard, For troubleshooting, you might want to look for a book recently authored by Michel Mardiguian entitled EMI Troubleshooting Techniques (copyright 2000). Its published by McGraw Hill, ISBN 0-07-134418-7. I have only just purchased a copy at Barnes Noble and have not had an opportunity to evaluate it thoroughly. Best regards, Ron Pickard rpick...@hypercom.com WOODS@sensorm atic.com To: emc-p...@ieee.org Sent by: cc: owner-emc-pstSubject: RE: EMC/EMI Training c...@ieee.org 09/18/00 06:05 AM Please respond to WOODS These are great books for EMC design. Can the group recommend a similar list of books for troubleshooting EMC designs? Richard Woods -- From: Ron Pickard [SMTP:rpick...@hypercom.com] Sent: Friday, September 15, 2000 5:00 PM To: emc-p...@ieee.org Subject: Re: EMC/EMI Training Hello to all, IMO, three of the most informative books from a practical intro approach into the world of EMC are (not in any particular order): 1. Henry W. Ott, Noise Reduction Techniques in Electronic Systems, John Wiley and Sons, ISBN 0-471-85068-3, 2. Mark Montrose, EMC and the Printed Circuit Board - Design, Theory and Layout Made Simple, IEEE Press, ISBN 0-7803-4703-X, and 3. Michel Mardiguian, Controlling Radiated Emissions by Design, Van Nostrand Reinhold, ISBN 0-442-00949-6. As for instruction, try Kimmel Gerke's (www.emiguru.com) EMI Made Simple seminars. The material covered is complete, can be customized and can be presented in-house. Note: To all in the group. This message was, and should not be contrued as, an advertisement for any of the entities identified above. I am just relaying my own opinion. I hope this helps. Best regards, Ron Pickard rpick...@hypercom.com - Original Message - From: Keith Zell To: emc-p...@ieee.org Sent: Friday, September 15, 2000 10:25 AM Subject: EMC/EMI Training What training classes and/or books would you recommend for the best practical EMI/EMC training from a systems approach? I am particularly interested in grounding/shielding issues and fixes. Any help would be appreciated. B. Keith Zell Electrical Design Engineer PMI Food Equipment Group Troy, OH 45374 (937) 332-3067 (ph) (937) 332-3007 (fax) zell...@pmifeg.com --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. To cancel your subscription,
AS/NZS 3548 - conducted emissions on telecom ports?
Hello group, Does Australia implement (or plan to implement) limits for conducted emissions on telecom ports as in EN 55022:1998? Also, who makes T-LISNs for these tests? Thanks, David. David Gelfand Regulatory Approvals Memotec Communications Inc. Montreal Canada --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org
RE: EMC/EMI Training
As a newcomer in the world of EMC, I have found EMI Troubleshooting Techniques (ISBN 0-07-134418-7) by Michel Mardiguian to be very good. It is published by McGraw-Hill, and is available on their website at www.books.mcgraw-hill.com. Regards, Fabian Spadaccini TA Instruments-Waters LLC (p) 302-427-4189 (f) 302-427-4081 fspadacc...@tainst.com www.tainst.com -Original Message- From: wo...@sensormatic.com [mailto:wo...@sensormatic.com] Sent: Monday, September 18, 2000 9:06 AM To: emc-p...@ieee.org Subject: RE: EMC/EMI Training These are great books for EMC design. Can the group recommend a similar list of books for troubleshooting EMC designs? Richard Woods -- From: Ron Pickard [SMTP:rpick...@hypercom.com] Sent: Friday, September 15, 2000 5:00 PM To: emc-p...@ieee.org Subject: Re: EMC/EMI Training Hello to all, IMO, three of the most informative books from a practical intro approach into the world of EMC are (not in any particular order): 1. Henry W. Ott, Noise Reduction Techniques in Electronic Systems, John Wiley and Sons, ISBN 0-471-85068-3, 2. Mark Montrose, EMC and the Printed Circuit Board - Design, Theory and Layout Made Simple, IEEE Press, ISBN 0-7803-4703-X, and 3. Michel Mardiguian, Controlling Radiated Emissions by Design, Van Nostrand Reinhold, ISBN 0-442-00949-6. As for instruction, try Kimmel Gerke's (www.emiguru.com) EMI Made Simple seminars. The material covered is complete, can be customized and can be presented in-house. Note: To all in the group. This message was, and should not be contrued as, an advertisement for any of the entities identified above. I am just relaying my own opinion. I hope this helps. Best regards, Ron Pickard rpick...@hypercom.com - Original Message - From: Keith Zell To: emc-p...@ieee.org Sent: Friday, September 15, 2000 10:25 AM Subject: EMC/EMI Training What training classes and/or books would you recommend for the best practical EMI/EMC training from a systems approach? I am particularly interested in grounding/shielding issues and fixes. Any help would be appreciated. B. Keith Zell Electrical Design Engineer PMI Food Equipment Group Troy, OH 45374 (937) 332-3067 (ph) (937) 332-3007 (fax) zell...@pmifeg.com --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org
