Accredited calibration lab for MIL-STD-883F or GR-78-CORE ESD simulators

Is anyone aware of a 17025-accredited calibration lab whose capabilities include calibration of ESD simulators to the requirements of MIL-STD-883F:2004 (clause 3015-7) or GR-78-CORE (I2, 2007)? I would appreciate any leads on this matter. Thanks, Jonathan Stewart EMC Manager Curtis-Straus, LLC.

RE: Electrical design challenge

> The short circuit current wouldn't be much greater > than rated current for any length of time, because > the source is the power supply, not the ac mains. Typical brick-type power supplies will put out about twice rated current into a short-circuit. So, 10 A rated becomes 20 A short-circuit.

Re: Electrical design challenge

In message , dated Mon, 1 Aug 2011, Ken Javor writes: >Understood that the wire insulation type might be covered by safety >standards, PVC is allowed but safety standards are now allowing 'equivalent performance materials that are more ecologically acceptable. >but as to wire gauge and ampac

Re: Electrical design challenge

time, because the source is the power supply, not the ac mains. Ken Javor Phone: (256) 650-5261 > -Original Message- > From: emc-p...@ieee.org [mailto:emc-p...@ieee.org]On Behalf Of Gartman, > Richard > Sent: Sunday, July 31, 2011 4:13 AM > To: EMC-PSTC@LISTSERV.IEEE.ORG &

RE: Electrical design challenge

Belay my last. UL1310 is NG -> 5V/10A does NOT conform to Class 2 or any sort of LPS per UL/CSA60950-1. sorry, Brian -Original Message- From: emc-p...@ieee.org [mailto:emc-p...@ieee.org]On Behalf Of Gartman, Richard Sent: Sunday, July 31, 2011 4:13 AM To: EMC-PSTC@LISTSERV.IEEE.

RE: [PSES] Electrical design challenge

s and many many many many others. Was that one too many? And your spec for the TLO72 and 84 is not correct, Mr T.I. Brian -Original Message----- From: emc-p...@ieee.org [mailto:emc-p...@ieee.org]On Behalf Of pat.law...@slpower.com Sent: Monday, August 01, 2011 9:06 AM To: Gartman, Richard Cc

Re: [PSES] Electrical design challenge

I believe single-output external power supplies need to meet efficiency regulations in North America and Europe. Meeting those requirements may force the selection of the DC cable wire size. Pat Lawler EMC Engineer SL Power Electronics Corp. "Gartman, Richard" wrote on 07/31/2011 04:12:49 AM:

Draft Australian Steady State Voltage Standard

I just received this notification from Standards Australia. The standard defines and describes limits. It also provides recommended threshold levels for measuring voltage dips and swells without setting limits. Please note that the following draft is open for public comment: Draft Number: D

RE: Electrical design challenge

The AC input is 100-200V, with the DC output at 5V 10A W. Richard Gartman, MS, CSP Product Stewardship Manager Texas Instruments, Education Technology 7800 Banner Drive, Dallas, Tx 75251 Office: 972-917-1636Email: rgart...@ti.com www.education.ti.com/us/productstewardship Please consider the

Re: Electrical design challenge

There is a good likelihood that power delivery requirements trump safety in this case. What are the power delivery requirements to the device? Is the 5 Volts down regulated to a lower voltage or used at 5 Volts? Doug Tel: 408-356-4186 Mobile: 408-858-4528 Email: d...@dsmith.org Sent:

Re: Electrical design challenge

In message , dated Sun, 31 Jul 2011, "Gartman, Richard" writes: >My designers are looking at a 5V 10A DC external power supply (AC >adapter brick style) that powers a consumer electronic product. The DC >cable is 35" long. Product is targeted for the NA and Europe markets. >1. What size/gauge

Loudspeaker Certification as Dangerous goods

I want to thank everyone that commented on my query about Loudspeakers and Dangerous Goods. Your insight provided needed direction on how to handle this issue and, as always, was very helpful. Regards to all, Scott - This message

Electrical design challenge

Team of subject matter experts, My designers are looking at a 5V 10A DC external power supply (AC adapter brick style) that powers a consumer electronic product. The DC cable is 35" long. Product is targeted for the NA and Europe markets. 1. What size/gauge and type of wire would you recommend for

Ethernet emissions due to POE injectors and other Ethernet hardware

Hi All, I just posted my Technical Tidbit for August, 2011. Be careful of the Power Over Ethernet injector you use, many will cause a radiated emissions failure. Not sure how they sell those units! See below: Technical Tidbit - August 2011 Power Over Ethernet Injectors Can Affect Ethernet Radiate

data tools for compliance people ?

Have received, and immediately refused, from one of our good colleagues a proposal to write a series on data storage / search / extraction / parse / analysis tools for our type of people. Too OT and too much of a code-wonk for this forum. There is no IEEE society or ACM SIG for this. Is this too s

Certification label in Canada - mandatory (by law) for the importer (European manufacturer)?

Hello, I have analyzed the Canada CEC Part I, section 2-024. My question is: Is the “approval” requirement mandatory for the “user” (operator) and he is responsible to ensure that the equipment is certified (and he closes a contract with the European Manufacturer that he only import certifi

Seeking a CSA & UL Motor Standards Expert

I am seeking an expert who knows both UL & CSA motor standards to assist a client of mine with some compliance issues that are outside my scope. The need is immediate. The client is located in Canada, but will work with consultants in other countries. Please contact me offline. -- Doug Nix Offic

RE: EC Official Journal Railway EN 50121-4

concerned. WARNING: Other requirements and other EC Directives may be applicable to the products falling within the scope of this standard. ___ May 2008 You can get the document for free. Best regards Helge Knudsen Bolls Rådgivning Denmark From: emc-p...@ieee.org [mailto:e

RE: Short Circuit Current test

Hi Derek, Bussmann’s Gubany Center in suburban St. Louis can handle fault testing up to 300 kA. Ted Eckert Compliance Engineer Microsoft Corporation ted.e

Short Circuit Current test

Hi Folks, I'm looking for laboratory which is able to run the short circuit current test (interrupt 65KA) on a solid state relay (600VAC, 30A / leg, 3 Phase). I have found several that can do lower currents, but 65 kA is a little on the high side. Can anyone point me to some options, preferably

RE: [PSES] ErP Directive question

You may also want to look at the Ecodesign "imaging equipment" study work which will lead to an IM for such products as copiers, faxes, scanners and printers. John C -Original Message- From: John Woodgate [mailto:j...@jmwa.demon.co.uk] Sent: 26 July 2011 21:31 To: EMC-PSTC@LISTSERV.IEEE.

RE: EC Official Journal Railway EN 50121-4

note to the relevant OJ listings advising that the Corrigenda do not need to be listed on a supplier’s CE DoC. Brian Brian McAuliffe Global Regulations & Standards Dell | Worldwide Regulatory Compliance From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of Mobers Jan (S

EC Official Journal Railway EN 50121-4

Dear readers. In the current EC Official Journal under EMC: http://ec.europa.eu/enterprise/policies european-standards/documents/harmonised standards-legislation/list-references/e ectromagnetic-compatibility/index_en.htm

Re: A haze on EN55013-Power clamp testing

Tim, Clause 5.6 tells you how to measure in the range of 30 MHz to 1 GHz. But that does not mean you have to measure that entire range, only that the procedure will work over that range. Clause 4.5 and Table 4 tell you what range you need to measure and to use the procedure specified in Clause 5.6

Re: portable fire extinguisher maintenance interval

In message <141aad52ccfb49ba9d17e581756bc...@tamuracorp.com>, dated Wed, 27 Jul 2011, Brian Oconnell writes: >S1851, NFPA10, etc establish maintenance intervals for portable fire >extinguishers as (typically) one year. While some standards specify an >annual hydrostatic test, gage verify, etc;

portable fire extinguisher maintenance interval

AS1851, NFPA10, etc establish maintenance intervals for portable fire extinguishers as (typically) one year. While some standards specify an annual hydrostatic test, gage verify, etc; none discuss the physical basis of this requirement. Why not 9 months or 34 months? Is there any performance or re

Re: [PSES] ESD Spacer

HI Doug, Absolutely, this is what I've been saying all along. Just extend your box observations to cables also. Great stuff, Derek. -Original Message- From: Doug Smith To: Bill Owsley Cc: Derek Walton ; Michael_Sundstrom ; bstammerjohan ; EMC-PSTC Sent: Wed, Jul 27, 2011

Re: [PSES] ESD Spacer

Speaking of effects of changing the capacitance to the horizontal coupling plane, take a look at the effect of placing small rubber feet on a small enclosure: http://emcesd.com/tt2006/tt010106.htm Would you retest if you added these thin feet to an enclosure? I would bet most would not, but shoul

Re: [PSES] ESD Spacer

Hi Derek, In this case, I have seen secondary discharges through various paper based materials between the bottom of the EUT and the table. The peak current and di/dt is mainly a function of arc length and this arc is very small and so will be very severe at most voltages. Doug On 7/26/11 5:45 A

Re: Ethernet cable EMI testing

Hi Chas, Wrapping the cable around the ferrite for two passes works below 200 MHz but above that it can reduce the effectiveness of the ferrite because of capacitance between the turns. Also if you wrap the Ethernet cable tightly around the ferrite, you may slightly unbalance the twisted pairs

A haze on EN55013-Power clamp testing

In EN55013, Clause 5.6 Measurement of disturbance power of associated equipment (video recorders excluded) in the frequency range 30 MHz to 1 GH, It shows up the meaurement frequency range is 30 MHz to 1 GH, however why we ususally test it from 30 MHz to 300MHz? In addition, in Clause 4.5 Dis

european plenum wiring of ITE equipment

Hello, For plenum wiring of low voltage ITE equipment and its power supply, is anyone aware of applicable european requirements and/or guidelines; akin to those in NEC code section 725 ? It's my understanding that these requirements tend to vary on a country by country basis... thank you, b

Re: [PSES] ESD Spacer

how about the dielectric constant of the spacer? It can range from near air using paper, to something over 10 using some of those fancy materials. Certainly that would change the capacitive coupling to reference plane and that would affect the ESD waveform. And the how to test the spacer for voltag

Re: Ethernet cable EMI testing

I recall the standard dropped or never implemented the requirement to add certain ferrites to all cables exiting the chamber. I don't like the cell phone frequencies on the plots so any cable to outside accessories gets lots of ferrite at the porthole. Attitude is Mind over Matter. If you do

Re: ErP Directive question

In message <72b8947772cf0948adaa9853631663fb643841a...@pbi-namsg-02.mgdpbi.global.pv t>, dated Tue, 26 Jul 2011, Jim Hulbert writes: >My specific product type is office equipment, including mailing >machines and printers. 1275/2008 - Standby applies to them. If you have a problem meeting the

RE: ErP Directive question

My specific product type is office equipment, including mailing machines and printers. Jim Hulbert -Original Message- From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of John Woodgate Sent: Tuesday, July 26, 2011 3:43 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: ErP

RE: ErP Directive question

EC regs: 1275/2008 - Standby 107/2009 - SSTB 244/2009 - Domestic lighting 645/2009 - Tertiary lighting 278/2009 - Power supply 640/2009 - Electric motor 641/2009 - Circulator pump 642/2009 - TV 643/2009 - Refrigerator Ln(e) - warp drives -Original Message- From: emc-p...@ieee.org

Re: ErP Directive question

In message <72b8947772cf0948adaa9853631663fb643841a...@pbi-namsg-02.mgdpbi.global.pv t>, dated Tue, 26 Jul 2011, Jim Hulbert writes: >Is anyone familiar with the ErP Directive 2009/125/EC?   Where can find >the "Implementing Measures" referred to in the Directive? These are Regulations that ar

Ethernet cable EMI testing

Hello Doug, I was interested in your comments regarding the degrading of Ethernet cables and poor EMI performance as a result. Typically we run Enet cables into a test chamber to provide traffic for the ports. We (of course) add ferrites external to the chamber to mitigate the effects of ambients

ErP Directive question

Is anyone familiar with the ErP Directive 2009/125/EC? Where can find the "Implementing Measures" referred to in the Directive? Thanks. Jim Hulbert Pitney Bowes - This message is from the IEEE Product Safety Engineering Socie

Re: [PSES] ESD Spacer

Hi Doug, you cant make choices for manufacturers. If their literature doesn't say use high quality cables, and the product sells for $10, what consumer is going to spend $45 on a nice cable? We disagree on used cables, Several of my clients make hubs, and we do not test with brand new cabl

Re: [PSES] ESD Spacer

Hi Doug? I'm lost: what secondary discharge? Please don't include MU in ESD discussions, MU in EMC is a stupid idea at best. Leave that to Meteorologists. Your idea of common sense, may not agree with others. Imagine what havoc we would unleash if we applied common sense to many of our standar

Re: [PSES] ESD Spacer

Hi John, after some 30 years of trying, I have had zero effect in influencing any of the standards bodies, so now I just complain at them. The MIL STD and DO-160 folks are far more receptive to helpful suggestions. It would be nice if the standards committees would provide a FAQ and feed back form

Re: [PSES] ESD Spacer

In message <8ce1967a301ec31-1458-46...@webmail-d175.sysops.aol.com>, dated Tue, 26 Jul 2011, Derek Walton writes: >I have to take exception to the spacing material. First rule of >assessing a lab is look for where the lab don't comply... if there's is >no criteria, you cant assume or impose an

Re: [PSES] ESD Spacer

Hi Derek, I disagree. Why would you knowingly allow secondary discharges that are more intense than applied stress? In this case, the measurement uncertainty of the setup would go up astronomically, dominating all other factors, if the insulating layer can be penetrated by a spark. The EN may

Re: [PSES] ESD Spacer

.org \ _ /]\ _ / Website: http://www.dsmith.org --- - 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 ar

Re: [PSES] ESD Spacer

While the ESD standard is non-specific regarding the insulation material, I must side with Doug. I would very much hesitate using some unknown withstand-rated material for my ESD testing that likely varies with humidity. For table-top products with feet, the point is probably moot, however many han

Re: [PSES] ESD Spacer

HI Ken, I have to take exception to the spacing material. First rule of assessing a lab is look for where the lab don't comply... if there's is no criteria, you cant assume or impose anything: opinions are irrelevant. The standards group may be working on something, but thats of no significance: y

Re: [PSES] ESD Spacer

Hi All, I'd just like to point out here that the EN does not give any criteria for the dielectric withstand nature of the spacer. So, while we can argue best practice, if a lab meets the thickness, all is permissible. I also disagree with Doug's statement on cables. You must test with whats

Re: [PSES] ESD Spacer

If the poster board is 0.5 mm thick as required, you may be failing equipment that might otherwise pass, which I have seen happen. A spark through the poster board will likely be worse than the one you supply from the ESD simulator in terms of peak current and di/dt. In any case, unless the poster

RE: [PSES] ESD Spacer

The concern I would have for that solution is for the resistance to compression and moisture. -Doug Kramer From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of Sundstrom, Michael Sent: Monday, July 25, 2011 12:32 PM To: Bryce Stammerjohan; EMC-PSTC@LISTSERV.IEEE.ORG Subject: RE

RE: [PSES] ESD Spacer

very hygroscopic and some dyes/inks have a measurable R, otherwise ok. -Original Message- From: emc-p...@ieee.org [mailto:emc-p...@ieee.org]On Behalf Of Sundstrom, Michael Sent: Monday, July 25, 2011 10:32 AM To: Bryce Stammerjohan; EMC-PSTC@LISTSERV.IEEE.ORG Subject: RE: [PSES] ESD

RE: [PSES] ESD Spacer

Guys, I just use poster board, I get 20 sheets at a local office supple house for $5-$6 ? Am I missing something? Do you need plastic sheets? Michael Sundstrom OHD / TREQ Dallas Electronic Lab Analyst, EMC Lead 2170 French Settlement Rd, Suite B Dallas, Texas 75212 (214) 579 6312 (

RE: [PSES] ESD Spacer

Derek, You might pay more to ship it from the west coast than what it costs for the material, but Tap Plastics has a polycarbonate in 20 mils thickness that we’ve found works well and is off the shelf in 2x4 foot size. See http://www.tapplastics.com/shop/product.php?pid=541&; I imagine th

RE: Vehicle Power Safety

directly connected to the battery/alternator node. Not so much if using aux power connectors on vehicles made in recent years. There are several companies that make special surge arrestor components just for ground vehicles. Brian -Original Message- From: emc-p...@ieee.org [mailto:emc-p

RE: Loudspeaker Certification as Dangerous goods

alty > -Original Message- > From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of Ken Javor > Sent: Monday, July 25, 2011 8:32 AM > To: EMC-PSTC@LISTSERV.IEEE.ORG > Subject: Re: Loudspeaker Certification as Dangerous goods > > Everyone seems to acknowle

Re: Loudspeaker Certification as Dangerous goods

e 512.272.6540 | Mobile 512.736.7201 | America - Europe - Asia > > -external use- > > ** Save paper and trees! Please consider the environment before printing this > e-mail. > > -Original Message- > From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of Ken Ja

RE: Loudspeaker Certification as Dangerous goods

Applications San Diego, CA USA 858-505-2780 Military & Avionics EMC Is Our Specialty > -Original Message- > From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of Ken Javor > Sent: Monday, July 25, 2011 8:32 AM > To: EMC-PSTC@LISTSERV.IEEE.ORG > Subject: Re: Loudspeak

RE: Loudspeaker Certification as Dangerous goods

ironment before printing this e-mail. -Original Message----- From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of Ken Javor Sent: Monday, July 25, 2011 10:32 AM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: Loudspeaker Certification as Dangerous goods Everyone seems to acknowledge some h

Re: Loudspeaker Certification as Dangerous goods

er has a huge effect on the fields. > -Doug Kramer > > -Original Message- > From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of John Woodgate > Sent: Sunday, July 24, 2011 11:07 AM > To: EMC-PSTC@LISTSERV.IEEE.ORG > Subject: Re: Loudspeaker Certific

RE: Loudspeaker Certification as Dangerous goods

Also, keep in mind if you ship multiple speakers in a box, how they are positioned in the box relative to each other has a huge effect on the fields. -Doug Kramer -Original Message- From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of John Woodgate Sent: Sunday, July 24, 2011

Re: Vehicle Power Safety

In message <9d04b979323dcd428297dda95108893e0287f...@bb-corp-ex2.corp.cubic.cub>, dated Mon, 25 Jul 2011, "Price, Edward" writes: >Thanks Gary, Brian & Mike; that helped me pull things together >regarding 24 VDC high-current safety. I didn't see any mention of the high voltages generated by t

RE: Vehicle Power Safety

858-505-2780 Military & Avionics EMC Is Our Specialty > -Original Message----- > From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of Brian > Oconnell > Sent: Friday, July 22, 2011 10:41 AM > To: emc-p...@ieee.org > Subject: RE: Vehicle Power Safety >

Re: [PSES] Passive Devices and CE Mark

Hi Scott, GPSD (General Product Safety Directive), EMC, RoHS and WEEE Directives might be applicable to the product. Here is a link to GPSD guide, it explain the relation with LV Limits. See item 4, page 16. http://ec.europa.eu/consumers/cons_safe/prod_safe/gpsd/guidance_gpsd_en.pdf Regards,

RE: Passive Devices and CE Mark

I agree with John in that the LVD never required passive speakers to be CE Marked. We use d to CE mark our speakers under the EMC directive but since the new one basically excludes passive products we have taken that directive off of our DoC’s…….. From: emc-p...@ieee.org [mailto:emc-p

Re: Passive Devices and CE Mark

In message <4e2c44b2.8060...@radiusnorth.net>, dated Sun, 24 Jul 2011, Scott Douglas writes: >Do completely passive loudspeakers require a CE Mark? If yes, what >standards would be used to declare conformity? > >My initial answer to this question was NO. Except for the recast RoHS >Directive n

Passive Devices and CE Mark

Do completely passive loudspeakers require a CE Mark? If yes, what standards would be used to declare conformity? My initial answer to this question was NO. Except for the recast RoHS Directive now requiring a CE Mark. The EMC Directive - Chapter 1, Article 1, Section 3 says: 3. This D

Re: Loudspeaker Certification as Dangerous goods

In message <4e2c3e03.8000...@radiusnorth.net>, dated Sun, 24 Jul 2011, Scott Douglas writes: >Would it be necessary to measure every speaker, one of a series, or the >biggest one we make and use that to cover all? The strength of the external field depends on constructional details, not size.

Loudspeaker Certification as Dangerous goods

Fellow List Persons, We wish to ship loudspeakers via air shipment to international customers. I understand there are requirements in IATA-DGR-2011that specify if magnetic fields exceed a certain level, the items are declared Dangerous Goods and require special handling or may not be allowed t

RE: [PSES] Vehicle Power Safety

Ahh you needed another room heater anywayJ 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

RE: [PSES] Vehicle Power Safety

I think the word OUCH comes to mind 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

ESD Spacer

Hi All, looking into replacing my insulating spacing mat for EN61000-4-2. Does anyone have suggestions for a source, preferably here in the USA? Thanks, Derek Walton L F Research - This message is from the IEEE Product Safety Eng

RE: EN50332 Sound pressure testing require for GS mark for Audio/Video product

immediately by return e-mail and delete it from your computer. From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of Huang, Tim Sent: Friday, July 22, 2011 12:53 AM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: EN50332 Sound pressure testing require for GS mark for Audio/Video product

RE: Vehicle Power Safety

SAE J-2344 is for EVs, but the hi-current bus construction is relevant. Make power connections to vehicle electrical power only after the fuse block to a node intended for aux power, and use connector certified to UL2089. Brian -Original Message- From: emc-p...@ieee.org [mailto:emc-p

RE: [PSES] Vehicle Power Safety

Or in a Telephone central office let you wedding ring contact both the -48V and return lines. From: Ken Wyatt [mailto:k...@emc-seminars.com] Sent: Friday, July 22, 2011 6:44 AM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] Vehicle Power Safety Yes, le

Re: [PSES] Vehicle Power Safety

Yes, let go of the wrench and stand way back after it welds itself to the battery terminals! Cheers, Ken ___ Kenneth Wyatt Wyatt Technical Services LLC Woodland Park, CO Email Me! | Web Site | Blog < ttp://www.emc-

RE: Vehicle Power Safety

Yes Ed, voltage is certainly one part of the equation but the real issue is current associated with it. In your case take a look at mil –hdbk-454B section 5.2 electrical shock and table 1-I. Commercial standards also require protection from contact with hazard voltage (generally greater than 60 Vdc

Re: GPS interference under consideration by FCC

plications 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 Clif Brick Sent: Friday, July 22, 2011 5:05 AM To: EMC-PSTC@LISTSERV.IEEE.ORG

Re: [PSES] GPS interference under consideration by FCC

cations 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 Clif Brick Sent: Friday, July 22, 2011 5:05 AM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: GPS interference under consideration by FCC For a

RE: GPS interference under consideration by FCC

USA 858-505-2780 Military & Avionics EMC Is Our Specialty From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of Clif Brick Sent: Friday, July 22, 2011 5:05 AM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: GPS interference under consideration by FCC For all of us that make GPS produ

Vehicle Power Safety

This is way out of my area, as all I know about safety is that I’m supposed to keep at least one hand in my pocket at all times. But seriously, is there any safety code or spec that address the human safety hazard of a 24 VDC vehicle electric system? Although the voltage level seems to preclude sho

GPS interference under consideration by FCC

For all of us that make GPS products for the US market, or are users of the GPS system in the US, there is something that may be of interest to you. There is a technology under consideration by the FCC that seems to have a significant potential for interference to some GPS receivers. I woul

Re: EN50332 Sound pressure testing require for GS mark for Audio/Video product

In message <5cd28539512e3142abbfd0ecbebbf50108b4f57...@hicgwsex01.ad.harman.com>, dated Thu, 21 Jul 2011, "Huang, Tim" writes: >Be frankly, even though I don?t do GS certfication, I still worry about >if the testing is also required  for desktop audio product with >headphone output? The lab d

EN50332 Sound pressure testing require for GS mark for Audio/Video product

Dear ALL, I have an urgent problem has to be verified. My product DVD player(only could be powered by AC mains) is doing safety testing in China TUV-SUD, I was told that a so called sound pressure testing require for GS mark for Audio/Video product, either portable device or desktop devic

EMC Newsletter Delivered - Summer 2011

Hi All, I just mailed my Summer 2011 EMC Design Newsletter out to all current subscribers. This issue contains a review article on the how I stay mobile-connected on the internet, a case study on an industrial alarm system with cable radiation and the last part of a continuing series on bench-top

standards

xkcd.com/927 - 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 All emc-pstc postings are archived and searchable on the web at: http://pr

Re: SV: Question about quick-connectors

In message <4e275c2f.8070...@radiusnorth.net>, dated Wed, 20 Jul 2011, Scott Douglas writes: >So it seems to me the only reason not to do it is designer or company >policy. Most crimps are NOT recommended by the manufacturer for holding more than one wire. There are even some restrictions on

Re: [PSES] SV: Question about quick-connectors

T: +45 48 18 35 66 F: +45 48 18 35 30 n...@bolls.dk www.bolls.dk -Oprindelig meddelelse----- Fra: emc-p...@ieee.org [mailto:emc-p...@ieee.org] På vegne af John Woodgate Sendt: 15. juli 2011

RE: Low loss cables

lab personel that should find something to do other than work on cables. :-) Bob R. --- On Wed, 7/20/11, Price, Edward wrote: From: Price, Edward Subject: RE: Low loss cables To: emc-p...@ieee.org Date: Wednesday, July 20, 2011, 10:58 AM

Re: SV: Question about quick-connectors

. > > Regards, > Niels > > Niels Hougaard > Bolls Rådgivning > Ved Gadekæret 11F > DK-3660 Stenløse > Denmark > > T: +45 48 18 35 66 > F: +45 48 18 35 30 > n...@bolls.dk > www.bolls.dk > > > > > > -Oprindelig meddelelse- > Fra: emc

3G EMC/Radio Consultant

Hi Group, We are looking for a consultant with proven track record in 3G device regulatory (EMC/Radio) compliance. If you know of someone with these expertise, please contact me off-list. Thanks, Oscar Fallah - This message is f

Re: Low loss cables

Hi Ken, I've just found an interesting pdf: http://www.dynawavecable.com/TechResour es/ChoosingTheOptimalHighFrequencyCoaxialCable.pdf Good luck, Luke Turnbull Dr Luke Turnbull EMC Technical Manager TRW Conekt Stratford Road Solihull West Midlands B90 4GW Tel:+44 (0)121.627.3

RE: Low loss cables

vionics EMC Is Our Specialty From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of Bob Richards Sent: Wednesday, July 20, 2011 6:34 AM To: Ken MacGrath; emc-p...@ieee.org Subject: Re: Low loss cables Ken, We have been replacing our older emissions cables with those from Mi

SV: SV: Question about quick-connectors

ls.dk www.bolls.dk -Oprindelig meddelelse- Fra: emc-p...@ieee.org [mailto:emc-p...@ieee.org] På vegne af John Woodgate Sendt: 20. juli 2011 13:10 Til: EMC-PSTC@LISTSERV.IEEE.ORG Emne: Re: SV: Question about quick-connectors In message <002f01cc46c1$3cf98640$b6ec92c0$@dk>, dated

RE: [PSES] SV: Question about quick-connectors

-Oprindelig meddelelse----- Fra: emc-p...@ieee.org [mailto:emc-p...@ieee.org] På vegne af John Woodgate Sendt: 15. juli 2011 18:32 Til: EMC-PSTC@LISTSERV.IEEE.ORG Emne: Re: Question about quick-connectors In message , dated Fri, 15 Jul 2011, John Woodgate writes: >>Quick-connectors a

Re: Low loss cables

In message <1311168846.50853.yahoomailclas...@web1101.biz.mail.sk1.yahoo.com>, dated Wed, 20 Jul 2011, Bob Richards writes: >That last cable is over $2400. Still not good enough for REAL hi-fi, then. Probably not even directional. (;-) -- OOO - Own Opinions Only. Try www.jmwa.demon.co.uk and

RE: Low loss cables

Another option we use are the Gore Coax cables from W. L. Gore & Associates, Inc From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of Bob Richards Sent: Wednesday, July 20, 2011 7:34 AM To: Ken MacGrath; emc-p...@ieee.org Subject: Re: Low loss cables Ken, We have

Re: Low loss cables

r for flexure, the "hookup" is made more for a cable that will be installed and not moved around afterwards. Bob R. --- On Tue, 7/19/11, Ken MacGrath wrote: From: Ken MacGrath Subject: Low loss cables To: emc-p...@ieee.org

Re: SV: Question about quick-connectors

In message <002f01cc46c1$3cf98640$b6ec92c0$@dk>, dated Wed, 20 Jul 2011, Niels Hougaard writes: >Thank you very much for the answers. > >The connectors in question are like those on this home page: >http://www.molex.com/molex/products/family?key=quick_disconnect&channel= >prod >ucts&chanName=fa

SV: Question about quick-connectors

re, and with connectors accepting more than one free connector there are not many reasons for not doing so. Regards, Niels Niels Hougaard Bolls Rådgivning Ved Gadekæret 11F DK-3660 Stenløse Denmark T: +45 48 18 35 66 F: +45 48 18 35 30 n...@bolls.dk www.bolls.dk -Oprindelig meddelelse----

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