Re: [PSES] I would like to hear your thoughts please

nential graph of EMC costs versus development time ? If you need proof (for authorities, or for yourself), nothing can replace the actual test. Gert Gremmen On 6-4-2024 0:47, Lfresearch wrote: Hi folks, I would like to advise a client at where to draw th

Re: [PSES] Conducted emissions for Split-phase 120/240V needs three-phase LISN?

The way I understand this is that if we are in the USA, then our 240 volts is likely Bi-Phase, not like Europe which has the Line swinging about the neutral by 240 volts. In that case you can use a V LISN, or two single phase LISN’s. In the USA with a Bi-Phase you need 3 LISN’s. When I test

[PSES] I would like to hear your thoughts please

every combination? Or, are there some guidelines about where we draw the line of what to test and what can be claimed as similarity? Off list responses are welcome too. Thanks, Derek Walton LFResearch/SSCLabs. - This message

[PSES] NARDA Field probe repair in the USA

Hi Folks, does anyone know who can still perform repairs to the NARDA EMR-200 main body unit these days please? I have one that appears to be dead. Thanks, Derek. - This message is from the IEEE Product Safety Engineering

Re: [PSES] RS or RI Modulation?

Hi Patrick, I’d be happy to participate.. just give me a heads up when.Cheers,Derek.Sent from my iPadOn Jan 14, 2024, at 9:58 AM, Patrick wrote:Is anyone interested in a discussion surrounding use of modulation during radiated immunity/susceptibility?I'm developing some new project-specific

Re: [PSES] 2 simple questions on EMC

Hi BrianI have done a number of comparisons between 3 m and 10 m test distances at many labs. In almost every case below 100 MHz the 3 m case produces worst results. So it would be reasonable to assume that if you moved out to 10 m you would have a better passing margin. Additionally, I’d like to

Re: [PSES] FCC Part B questions

Patrick,Put me down as an MU abolitionist. I don’t see it adding any value, just workload and cost. I’d like to see it gone completely Yes I know others don’t agree, such is life. Derek Sent from my iPhoneOn Jul 14, 2023, at 3:30 AM, Patrick wrote:I've been busy last couple of days and only now

[PSES] Question concerning Accredited test reports.

Good day everyone, I hope this finds you well. We have been pursuing ISO 17025 accreditation for an EMC test facility and one standard on our scope is IEC 61326-3-1. We have been trying to avoid using standards that are not EN’s so is there any reason we should have both IEC 61326-3-1 and EN

[PSES] Adding more than one EUT

Hi folks, I’ve been asked to test a light fixture that has the ability to be daisy chained up to 8 units. When I run conducted emissions, I’m wondering if I need to insist on having 8 units plugged in at once i.e. fully populated, OR, can I just test one fixture at a time since that’s how the

Re: [PSES] Intertek message FYI: Important Update: Pending Regulatory Change to UKCA Program

countries and was in direct reply to John M's > question! > > John E Allen > W London, UK > > Get BlueMail for Android <https://bluemail.me/> > On 9 Nov 2022, at 19:06, Lfresearch > <00734758d943-dmarc-requ...@listserv.ieee.org > <mailto:00734758d

Re: [PSES] Pending Regulatory Change to UKCA Program

Not the same analogy. Sorry. > On Nov 7, 2022, at 1:39 PM, Richard Nute wrote: > > > “It’s a fact the CE mark adds way more cost than the return on investment of > performance improvement.” > > Reminds me of a marketing manager saying to me that safety (and, I assume, > safety

Re: [PSES] Intertek message FYI: Important Update: Pending Regulatory Change to UKCA Program

ohn Mcbain wrote: > > Hello Lfresearch - > > Would you please explain to me how you reconcile "removal of unnecessary > trade barriers" and "encouraging for England [note: actually UK] to exit from > the EU"? > Those views seem to be mutually incompatibl

Re: [PSES] Intertek message FYI: Important Update: Pending Regulatory Change to UKCA Program

I think most people have learned to not listen to MSM, but rely on individuals in groups like this to further knowledge. It’s highly beneficial to have working members, most without a dog in the fight, in multiple economic zones. That said, and to counterpoint a different position, I was

[PSES] Zuken

Hi folks, I’ve been asked a few questions on Zuken that I’m not sure how to answer. Anyone familiar with the package? In particular the design rules checking function. Thanks, Derek - This message is from the IEEE Product Safety

Re: [PSES] High Touch Current and GFCIs

I have wondered about something similar. If I use a 6 way power strip, I’m assuming all the leakage currents for anything plugged in sum. Is that correct? I recall getting a few trips when I used a power strip and It’s only just twigged that might be why. Cheers, Derek. Sent from my iPad >

Re: [PSES] SV: [PSES] FW: Intertek message FYI: Important Update: Pending Regulatory Change to UKCA Program

You know, I’m curious what is meant by a conformity assessment by a UK body? What equipment requires this and what value does it add? Thanks Derek. Sent from my iPhone > On Aug 4, 2022, at 9:39 PM, Amund Westin wrote: > >  > Thanks! > So, currently we can just use our existing CE DoC

Re: [PSES] Wire through a shield

Hi Chas, thanks, thats super. Figure 7 is very close ( actually close enough ) to what I want to illustrate. If you’re at the show, coffee is on me! Take care, Derek. > On Jul 26, 2022, at 9:56 AM, Charles Grasso wrote: > > Simulation of Shielding Effectiveness of Materials using CST Studio

[PSES] Wire through a shield

Good day folks, I’m looking for public domain data that shows the impact of stuffing a wire through a faraday shield. We all know what happens, but I was hoping for a simulation or test data so I can give quantitive numbers rather than generalities. Any suggestions gladly received. Thanks,

Re: [PSES] ESD generated by rotating turntable

If you see spikes when you rotate the turntable, it usually means there’s something wrong. There’s usually a PE type ground, that unless the used copper terminals to bond aluminum structure, and you have periods of moisture, then that should be good. Just about every turntable I’ve seen has

[PSES] Ignition suppress ion question

Good morning folks I have a question or two about suppressing the EMC ramifications of a multi circuit ignition system Does anyone have a good grasp on the various ways of suppressing noise that might couple into a VHF radio some 10 to 12 feet away. I’m trying to weigh benefits vs the pain

Re: [PSES] Minimizing EM radiation from a 5G multi device test lab

Hi Chas, You may want to try adding conductive wallpaper. I have seen this to be very effective. Indeed, I have seen this work well just using commercial baking foil and some wall paper paste. It’s a fun project. Cheers, Derek. > On Feb 2, 2022, at 1:44 PM, Charles Grasso wrote: > >

Re: [PSES] US vehicle EMC regulations

LOL Ken, maybe if you want to listen to AM Radio you probably shouldn’t be driving a Tesla. ;-) I have to say, personally, I’m on Teslas side here. They realize that other means exist to get radio stations anywhere, if you really want that. As long as my car gets internet, I’m happy. Have a

Re: [PSES] European mains breakers with GFI function

We have tested a number of EATON breakers and they did very well at industrial levels Cheers Derek Sent from my iPhone > On Oct 4, 2021, at 8:43 AM, Ken Javor wrote: > >  Can anyone out there state whether such breakers respond only to mains > frequency leakage currents, or whether they

[PSES] Keytech Minizap

Good morning folks. I’m helping a not-for-profit group with a remote electronics installation at high altitude, and I have asked them to perform some in-situ ESD testing. I would like them to get a battery powered ESD gun and the Keytech Minzap fits the bill. Does anyone have one lying

[PSES] MIL STD 461 technician needed in Oklahoma City

Hi All, not to steal from Davids needs, but I’m looking for an MIL STD 461 EMI technician that’s a US Citizen for the Oklahoma City area. I don’t have a job positing yet, but please feel free to contact me off list and I’ll brief more whats being looked for. Now back to Davids needs, Thanks,

Re: [PSES] What percentage of products pass first time?

Hi Chas, Sorry to be late to the table, always happens when there's no food on it ;-) Over the last 30 years in our lab it has varied. Starting out around when the CE mark first hit products tended to be noisy, but the circuits were running much slower the net result being a likelihood of

Re: [PSES] Semi-Anechoic Chamber move

Hi Ken, I don’t know that Company, but the EMC Shop has taken of that part of my business these days: I just certify the rooms now. Age is a pain in the tush, but better than the alternative. www.theemcshop.com Cheers, Derek. -Original Message- From: Ken Javor To: EMC-PSTC Sent: Fri,

Re: Ferrite clamps

In a message dated 11/25/2002 2:48:34 PM Central Standard Time, ghery.pet...@intel.com writes: Fischer Custom Communications has developed a small clamp that meets the CISPR 22 requirements while costing significantly less money than an IEC 61000-4-6 isolation clamp. I guess time to

Re: Bluetooth in Israel, Brazil, Argentina and India

In a message dated 11/25/2002 7:52:58 AM Central Standard Time, kimb...@post7.tele.dk writes: Hi all Sorry to bring this matter up again. I have now a list of 21 countries requirements for BlueTooth products national type approvals, and still need 4 more which I can't find. Can some one

Re: Chass Grasso

Thanks everyone, we found his Rock :-) Derek.

Chass Grasso

Hi all, I'm trying to reach an old friend of mine Chass Grasso. Does anyone have an idea of his whereabouts? Thanks, Derek Walton

W32.Elkern removal tools

attachment: 5937_notebook_trioffer1[1].jpg

Re: E-field probe for immunity testing

In a message dated 11/13/2002 8:07:17 AM Central Standard Time, gui...@cae.com writes: I have an IFI (think it stands for Instruments For Industry) E-field probe, purchased years ago. It still works fine. It comes with various probe tips (antennas) tuned for low/high V/m, and it has its

Re: E-field probe for immunity testing

HI Richard, Running the risk of being commercial here... You know Schaffner maybe coming out with their own probe? Cheers, Derek.

Re: EN61326:1997 Planning

And you seem to have forgotten that Schaffner also have products that compete for these test too Frank. lol Derek. --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at:

Re: EN61000-3-3 -3-11

In a message dated 10/30/2002 10:54:53 AM Eastern Standard Time, jwise...@printronix.com writes: I have a copy of 61000-3-11 and it says that you must test to 61000-3-3. If you fail this test you can come back and test to 61000-3-11. Other than that the scope is meant for equipment

Re: ESD Gun

I'm currently renting a Schaffner NSG435 ESD Gun and like the features. Would anyone be able to provide me with some leads where I might be able to get a deal (used is OK) on a comparable piece of equipment to purchase? I find the continuous feature to be a necessity as well as the

Re: Surge and EFT test equipment for AC, DC, and signal ports

In a message dated 9/24/02 9:47:03 AM Central Daylight Time, jrbar...@iglou.com writes: I agree with Warren that electrostatic discharge (ESD) testing is the most important single immunity test that you can run during development Here I beg to differ, Fast transient Burst has been the most

Re: Surge and EFT test equipment for AC, DC, and signal ports

Hi Warren, My charge includes the test reports... I've made it so the data collection process writes the report for me. All I have to do is modify a generic front section. Total time about 3 hours... I'm sure other labs have done similar processes. Cheers, Derek.

Re: Surge and EFT test equipment for AC, DC, and signal port

In a message dated 9/23/02 9:05:08 PM Central Daylight Time, war...@comfortjets.com writes: A suite of testing runs about $6000 for immunity for ITE equipment to meet EN 55 024 without even talking about the Radiated Immunity requirements equipment and a chamber. You are going to likely

Re: British fused plugs -

In a message dated 9/23/02 4:47:15 PM Central Daylight Time, ai...@gulftel.com writes: The shutters stay closed whenever the socket has no plug present to prevent contact with the L or N pins. I suppose this additional protection is considered necessary for children in the UK. Not

Just how many to test...???

Hi all, I've been approached and asked to advise on just how much to test... remember I'm a test lab so my answers may be biased. My client has three designs, the only difference is the transformer. A 24 V version for low voltage control systems ( about 49.5% sales volume ) A 120 V version for

Relays,

Hi, anyone have a good source for relays for the chattering relay test in DO-160 or MIL-STD 461? Thanks, Derek.

Subharmonics.

HI, I'm testing a product that's switching at 50 kHz, modulated by a 1 kHz signal. I'm getting a great deal of noise between 9 kHz to 13 kHz, I think is related. Specifically, it goes when I stop the modulation... Any ideas on ways to clean this up. Filtering seems to be effective, but HUGE!

Pusle generator

Hi all, I'm looking to rent a pulse generator to perform pulse testing in accordance with the 1 MHz waveshape in MIL-STD 461 E CS116. Can anyone suggest a source. Thanks, Derek N. Walton Owner, L. F. Research EMC Design and Test Facility 12790 Route 76, Poplar Grove, IL 61065

EMSCAN data

Hi all, I'm looking for ideas on interpreting the data I've taken on my EMScan. For anyone not familier with EMScan, it maps the currents flowing on a PWB using 3 dimensional loops under a 5 mm square grid. I have taken a number of charts at different frequencies that show banding across the

Re: Multiple shield terminations?

Hi Ken, I'm open to this, but the cables that pass through ( there could be as many as 10 ), all have their own braids, and are impedance matched. I really don't want to just squish them together and hope it makes good contact all around Not sure if I'd change the cables impedance ( they

Multiple shield terminations?

Hi all, I'm faced with a situation where a number ( up to 10 ) of small ( 3mm ) shielded wire pais come together at a connector. I need to provide a peripheral termination for each shield. Has anyone come across and off the shelf solution for this? Alternatively, a good way of achieving this?

EN 292

HI all, this is possibly not the place, but can anyone confirm if EN 292 -1 and -2 has been updated? Thanks, Derek.

Re: mains leads with integral ferrites

Chris, I've made, in small quantities, mains leads with distributed ferrites. I did that to avoid the big clunky wart on the cable. Derek N. Walton Owner, L. F. Research EMC Design and Test Facility 12790 Route 76, Poplar Grove, IL 61065 www.lfresearch.com

Re: IEC 61000-4-2 ESD 61000-4-5 Surge lower levels

In a message dated 6/7/2002 5:01:43 PM Central Daylight Time, kro...@yahoo.com writes: If the EN 55024 calls for 1,2 kV for surge on the AC, does this mean we have to repeat the test @ .5, 1kV too? For ESD, 8 air, 4 cont should really be 8,6,4,2 air and 4,2,1 cont?? This is indeed the

Microwave Sweeper

Hi all, I have a microwave sweeper, 400 MHz to 18 GHz I believe, that I'd like to find another home for. Anyone interested before I put it on e-bay? Thanks, Derek N. Walton Owner, L. F. Research EMC Design and Test Facility 12790 Route 76, Poplar Grove, IL 61065 www.lfresearch.com

Fixture for CISPR 15

Hi, has anyone any idea where I can get the lamp fixtures illustrated in Fig 5a-f of EN55015. Thanks, Derek,

Re: High Temp Caps and Inductors

In a message dated 4/19/02 5:01:40 PM Central Daylight Time, j...@jmwa.demon.co.uk writes: It might be helpful to have an idea of what sort of filter and what frequencies are involved, also the permissible deviations from the ideal response. I'm looking for Ceramics, 0.01 through 1

High Temp Caps and Inductors

Hi all, I'm designing a filter that has to live and work with an Ambient temp of 180 C. Does anyone have suggestions as to component vendors that I could contact for parts? Thanks, Derek Walton. L F Research

Re: HP-85650A Calibration

Ed, Use an accredited cal lab. of course, it should be A2LA ;-) Seriously, they have a list of suitable labs on their website www.a2la.org Derek Walton

Fwd: 100kV ESD Immunity Testing

Someone recently asked for 100 kV ESD. SInce I work for Schaffner I thought I'd ask the factory.. Well, hope this helps whoever.. Derek Walton ---BeginMessage--- I have spoken to John Hardwick at Culham Labs, he says that they can generate 100kV but he would need much more info before he can

Re: Measurement Uncertainty Software

Bob, before you go round the houses on this, I suggest you talk to Trace at A2LA. He can tell you what a lab should really be doing IMHO, a spreadsheet is all you really need. tmcintu...@a2la.org Best regards, Derek Walton

RS NRVD power meter manual

Hi all, I'm looking for as copy of the RS NRVD power meter manual, anyone have one, or have a suggestion where one could be obtained? Thanks, Derek Walton

Re: radiated HIRF testing levels modulations

HI Susan, we may be of help, what specifically do you want to know? Derek Walton

Re: FCC Compliance

Andrew, Normally equipment on aircraft have to meet at least DO-160, which requires emissions and immunity both. Sometimes an Aircraft Manufacturer will have their own. Boeings is D6-16050-4 I believe. If you've only been asked for FCC you are getting off lightly... Derek.

Re: EN61000-6-2

Hi, When I set the Conducted immunity test up for folks I ALWAYS add an attenuator on the front end of the spectrum analyser. Typically I use a 25 watt 10 dB pad followed by a 20 dB 1 watt pad. I use a good quality attenuator, and if accuracy is really critical, I characterise them and

CM Choke simulation

Hi all, I'm trying to model a common mode choke in Micro-sim. Has anyone tried this? Failing that, any suggestion on how to model one in Spice, possibly using magnetic models? Thanks in advance. Derek.

Re: CISPR Compliant EMI Receiver/SA

Hi all, I like to use a spectrum analyser more for diagnostics, and a receiver for compliance work. Of course I'm biased, but the Schaffner receiver currently covers 1 GHz, and the new version about to hit the streets goes to around 20 GHz. Both are CISPR 16 compliant. I personally feel

Re: looking for Wandel Goltermann field strength probe

Hi all, Johns Phone number is 1-800-367-5566 Ext 225 Derek Walton

Re: High Frequency Pre-amp

Bob, the Schaffner preamp goes to 3 GHz I believe, Derek. --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your

Re: surges on 24VAC

Jennifer, I have instructed those clients I deal with to test the input as follows: Get a transformer thats typical for your unit, and apply the surge to the input of it. Keep the leads short. By doing this you have made an attempt to met the standard. And, yes I know it's not perfect, but it

Re: 2 Phases in North America

Mike, I don't go with you on this one... 0 implies nothing ( prehaps 0 ac ) ... therefore the 0th harmonic is dc??? if a squarewave is made up of odd harmonics, we would have to rethink that, correct? Derek. --- This message is from the IEEE EMC

Re: RF Immunity Testing to 50V

Hi Kevin, we too can achieve high fields, currently about 80 v/m is our limit. Again, you may want to talk more offline Best regards, Derek. --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list.

Re: 2 GHz Amplifiers

Can anyone remind me what Standards require the 1.4 to 2.0 GHz Radiated Immunity Test? Thanks, Derek Walton. --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at:

Re: EMSCAN (was TV nostalgia/EMI sniffer goggle)

Alas, you forget that there is a world outside of PC's and Coms;- Derek. --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To

Re: EMSCAN (was TV nostalgia/EMI sniffer goggle)

Hi all, I have an EMScan system that I used for debugging boards. I have mixed feelings, but for somethings it really helps. If anyone would like their board scanned to see if it would help them, let me know off line: I'm really cheap;- As for high frequency, the resolution of the grid

Re: LCD Monitors etc.

George, I did a number of experiments on 15 monitors for a machine HMI. They are indeed quiet, but there is quite a difference between manufacturers. Most of the problems I had to fix were related to leakage through the display from circuitry behind it. Derek.

Re: Surge tester for 3-phase product.

Indeed, Schaffner has just installed a 45 kVA 3-phase system in the USA. Derek Walton --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at:

EMC Wall Charts

Hi all, I think this is OK, tell me if not! Schaffner has put out a series of colour wall charts. There are 4 covering emissions, immunity and automotive test requirements. There are Adobe Acrobat versions, or there are 0.7m by 1m paper versions. The Adobe Acrobat version can be downloaded

Re: EN 61000-3-2 and -3 equipment

Hi all, since the question has been asked, I feel oblighed to offer that Schaffner is stepping up to the plate for the Harmonics and flicker requirement, we've just completed installation of a 50 kVA system... but we have smaller;- Not wanting to upset list members with advertising,

Re: CISPR Compliant Spectrum analyzer/receiver

You could always use the worlds best kept secret, a Schaffner EMI receiver... There are 2, both fully CISPR compliant. Derek Walton. --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our

Re: Calibration of test equipment

Brian, my concern with your statement would be suggesting use of a NAMAS accredited lab Why not A2LA or other body. I know of a number of great cal labs with no accreditation Derek Walton --- This message is from the IEEE EMC Society Product

Re: Impedance Shielding Eff.

Hi Captain, You will be able to when we finally document what we're up to. There is a potential patent in the way we do the testing. The bad side is not that we can't disclose it yet, but that we're not in a position to generate revenue from it...;- Maybe by the time we meet in CA this

Re: Impedance Shielding Eff.

Ken, a jig like you describe was made and marketed by Elgal in the USA. It was called a SET 19 I believe. Derek. --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. To cancel your subscription,

Re: Impedance Shielding Eff.

Antonio, When I was a little younger, we tested a bunch of panels to help determine the make up of an aircraft structure. Our panels were about 10 by 18. We did the testing by putting the panel in the shared wall between two shield rooms, creating a field in one, then measuring the field in

Re: EN61000-3-2 -3

John, you may want to take a look at Schaffners offering, I really like their software and they are addressing A14. Call Greg Senko 603-642-4694 I believe HP are getting out of this market, so you may find some of their equipment going quite cheap. You may also find some other folks

Re: Site Correlation

In a message dated 1/16/01 7:09:38 AM Pacific Standard Time, ral...@igs.net writes: What it boils down to Chris is the lack of immunity of the consumer equipment contributes to degradation of the intended function. Ralph, I've made this point to Art Wall of the FCC many times, he does not

Product Standard for Prox Sensors

Hi, could anyone tell me in which of the following documents I can find the EMC requirements for Prox switches? EN 50227:1997 Control circuit devices and switching elements proximity sensors, d.c. interface for proximity sensors and switching amplifiers (NAMUR) EN 60947-5-2:1998

Testing T1 lines for CE

Hi all, has anyone been involved with testing T1 lines for conducted emissions in accordance with CISPR 22, and is prepared to share their experiences? Thanks, Derek Walton. --- This message is from the IEEE EMC Society Product Safety Technical

Lighning Generator

Hi all, I'm looking to perform Lightning testing to RTCA DO-160, and I'm not finding a lot of test equipment out there. In fact the best is from Solar with a 1 to 2 month lead time. I like the equipment, but is there any suggestions on other potential vendors, or on how to build my own?

Re: EN 61000-6-2 Table 2.3 inticates signal ports = 30 M +/- 1kv?

Hi all, let me bring a different perspective. In the aircraft world we have a lightning tests that stress interface wiring travelling some distance WRT local wiring. The reason we do this is because when lighting strikes the plane, the fuselarge(?) carries MANY amps, and there is a voltage

Testing short cables

Hi all, I have a product to test which comes with its own wiring harness. Several of the leads are not really long enough to make it through the FTB capacitive coupling clamp. Any thoughts on how to test these lines? 1) Extending them just for this test 2) Using what length there is 3) Not

RE: Complications of self-declaration without an independent test lab being involved

Gary, you make this statement... Besides I have never seen a cost impact on using an accredited lab, and knowing that my test lab reads this forum, I had better not see one (Morning, Paul and Jim), so it just doesn't seem prudent to me not to use an accredited lab I charge $600/day for

RE: Complications of self-declaration without an independent test lab being involved

Ghery, in your reply it reads as though an accredited lab is required. I want to make sure it is clear that for compliance with the EMC Directive it IS NOT the case. Use of an accredited lab may make life easier, but, I reiterate, it is not required. Best regards, Derek Walton

Passive power factor correction

Hi folks, not long ago, there was some descussion on modules for passive power factor correction. We have an application of around 150 watts that is a borderline fail, and the addition of a small module would get us by until a new PS design is developed from scratch. Can anyone suggest

Re: Automotive EMC Directive

I know Elite in Chicago have been looking into Automotive testing, give Ray Klouda a call. Derek. --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. To cancel your subscription, send mail to:

Tri-Plate Line

Hi, I'm looking in to the make Vs. buy issues with the SAE Tri-Plate Line. Has anyone got experience that they would be prepared to share on which way to go? Thanks, Derek. --- This message is from the IEEE EMC Society Product Safety Technical

Fwd: October IEEE Meeting Announcement

---BeginMessage--- ** ***MEETING ANNOUNCEMENT*** IEEE EMC SOCIETY CHICAGO CHAPTER OCTOBER MEETING WHEN: Wednesday, October 25 7:00 Social, Refreshments

Re: Measurement Uncertainty

Jim, I suggest that you get a hold of Daren Valentine at A2LA, they do a great course on Uncertainty. I did attend the C63 course and was not impressed at all. Derek Walton --- This message is from the IEEE EMC Society Product Safety Technical

MOV's

Hi, does anyone have a SPICE model for an MOV? 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

Re: DC power distribution

Lisa, I recently discussed this concept with Norm Provost ( he was instrumental in the preparation of 1326 ), and I'm not sure that we agree but he is the Guru. We have taken the definition of network to mean devices sharing the same source of power. For example, on a large machine, a

Re: Component Qualification

Tony, we have an EMScan, and found it to be of limited use. If you have a board with components that protect peripheral interfaces, you really need to test with the interfaces present in the same fashion that you would run a Qual test. A precompliance facility does a better job than EMScan

Re: Near Field Versus Far Field/Troubleshooting

Chris, I've been doing a similar test for years, only I use a pin solderd to about 2 feet of wire. This way I don't actually touch the circuit myself. FYI, Derek. --- This message is from the IEEE EMC Society Product Safety Technical Committee

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

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