RE: EMC Directive revisions

2000-03-30 Thread Grasso, Charles (Chaz)
Now I am really confused!! As I understand it the EMC Directive was never intended to INSTRUCT folks what tests to run or indeed what levels etc..to demonstrate compliance. Indeed one of the statements from the SLIM was the Directive per se was just fine and that the standards etc were the real

RE: Mars Lander EMC problem?

2000-03-30 Thread Grasso, Charles (Chaz)
Hmm - I think we need some on-site research done on this one.. -Original Message- From: Tony J. O'Hara [mailto:tonyoh...@compuserve.com] Sent: Thursday, March 30, 2000 10:31 AM To: IEEE list server Subject: Re: Mars Lander EMC problem? Hi I thought many people would be interested in

RE: Ambient Cancellation Device for OATS

2000-03-29 Thread Grasso, Charles (Chaz)
Thanks Mike for an excellent post. -Original Message- From: Mike Murphy [mailto:mmur...@alesis.com] Sent: Wednesday, March 29, 2000 10:56 AM To: emc-p...@majordomo.ieee.org Subject: RE: Ambient Cancellation Device for OATS Brent and group, I can verify that the CASPPER system does

RE: StripLine

2000-03-28 Thread Grasso, Charles (Chaz)
Presuambly you are referring to a stripline antenna?? Thank you Charles Grasso StorageTek 2270 Sth 88th Street Louisville CO 80027 Tel: (303)673-2908 Fax(303)661-7115 -- From: Frank Krozel[SMTP:fr...@electronicinstrument.com] Sent: Tuesday, March 28, 2000 11:24 AM

OATS Ambient Cancellaion - Thank you all

2000-03-22 Thread Grasso, Charles (Chaz)
Thanks to all of you who responded. I agree with Brent - Lets keep the list EMC Safety.. -Original Message- From: brent.dew...@us.datex-ohmeda.com [mailto:brent.dew...@us.datex-ohmeda.com] Sent: Tuesday, March 21, 2000 12:41 PM To: emc-p...@majordomo.ieee.org Subject: Laotian power

RE: Certification of Products and other emerging countries

2000-03-22 Thread Grasso, Charles (Chaz)
... The emerging countries are quite numerous, can you come up with some actual examples? Grasso, Charles (Chaz) gra...@louisville.stortek.com on 03/22/2000 02:43:36 AM To: Rene Charton/TUV-Twn@TUV-Twn, Kevin Newland kevin_newl...@yahoo.com cc: emc-p...@majordomo.ieee.org Subject: RE: Russian

Ambient Cancellation Device for OATS

2000-03-21 Thread Grasso, Charles (Chaz)
Hello - A little while ago there was some discussion of a company designing an ambient cancelation device. Question: Does anyone remember the company?? --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion

RE: Russian Certification of Products and other countries

2000-03-21 Thread Grasso, Charles (Chaz)
It has been my experience that - with the exception of the EU and Aus/Nz - the emerging countries have been very erratic in the implementation and enforcement of EMC legislation. Rene, I must disagree with your comment regarding scheduled implmentations. Putting incomplete EMC

RE: Banana Split

2000-03-15 Thread Grasso, Charles (Chaz)
I support the general comment that more specificity in the subject line would help in sorting emails. -Original Message- From: Lacey,Scott [mailto:sla...@foxboro.com] Sent: Wednesday, March 15, 2000 7:07 AM To: 'emc-p...@ieee.org' Subject: Banana Split I apologize for the rather

RE: EMC Test Conditions

2000-03-07 Thread Grasso, Charles (Chaz)
Gary - You make a compelling argument but I must disagree. I belive that BOTH the user and the testlab need to cooperate fully with good faith. The testlab is afterall the defacto expert in testing test standards, the user knows the product intimately (one hopes!) One or other cannot be fully

RE: EMC Test Conditions

2000-03-07 Thread Grasso, Charles (Chaz)
Interesting problems Derek.. Some comments: 1. Testing the device on a table. I'm not sure it is a stupid thing to do. As I see it this is a similar problem to rack qualifications. If the EUT does NOT require the metal support for any EMC performance (shielding/filter grounding) then testing

RE: Technical Documentation

2000-03-03 Thread Grasso, Charles (Chaz)
Excellent thought - and one that we are moving to. There are a couple logistical issues that need resolving.. 1) one problem there is that we would have to employ 2 persons fulltime to perform all the necessary library functions 2) the transmittal of the data (the files can attain several

RE: Technical Documentation

2000-03-03 Thread Grasso, Charles (Chaz)
Scott - We maintain a similar system. That is with stuff scattered at different points in the company. I (and you and I think many others) belive that WHERE access to the documentation is irrelevant. What really counts is GETTING the documentation to the person that requests it. -Original

Question on EN55024 legacy products

2000-03-02 Thread Grasso, Charles (Chaz)
Hello _ I was wondering if this esteemed group could help me here: As everyone in the ITE business knows EN55024 is soon upon us. The questions I have are: 1) Legacy products. I assume that - as long as no changes are made - then EXISTING products do not require changes to

RE: ITE Requirements for India?

2000-01-05 Thread Grasso, Charles (Chaz)
Hi Kevin - I would like some clarification here. In your response you indicate that there are EMC REQUIREMENTS. My question(s): 1. Is there a law requiring this.? 2. If so what is it ? 3. What marks are required? 4. Is there importation controls on ITE equipment vis-a-vis EMC? Thanks...

FW: Embedded Capacitance Project

1999-12-16 Thread Grasso, Charles (Chaz)
-Original Message- From: Grasso, Charles (Chaz) Sent: Thursday, December 16, 1999 10:58 AM To: 'Signal Integrity' Cc: Charbonneau, Richard A Subject: Embedded Capacitance Project Hello, Please find attached information regarding the NCMS Workshop on Embedded

RE: Cell Phone Hazards?

1999-12-09 Thread Grasso, Charles (Chaz)
Hi Ghery - I seem to recall that NIST here in Boulder performed some experiments that measured the field from a cell phone at a typical usage distance at 700V/m!! -Original Message- From: Pettit, Ghery [mailto:ghery.pet...@intel.com] Sent: Wednesday, December 08, 1999 9:49 AM To:

RE: Open Frame EMI Filters

1999-12-09 Thread Grasso, Charles (Chaz)
Go ahead and put it on the pwb. We do it anf it works very well. There is a caveat though - pay a lot of attention to the layout and final installation. -Original Message- From: POWELL, DOUG [mailto:doug.pow...@aei.com] Sent: Wednesday, December 08, 1999 10:16 AM To: EMC-PSTC (E-mail);

RE: Cell Phone Hazards?

1999-12-06 Thread Grasso, Charles (Chaz)
Just to provide a balance here: My father is Professor of Pathology at Surrey University in England. He has been involved in cancer research for most of his professional life. I have grilled (metaphorically) him on this issue. To date, he belives that there is no conclusive evidence of cell

RE: FCC part 15 class B, GTEM?

1999-12-02 Thread Grasso, Charles (Chaz)
] Sent: Tuesday, November 30, 1999 1:49 PM To: Grasso, Charles (Chaz) Cc: emc-p...@majordomo.ieee.org; 'ron_cher...@densolabs.com' Subject: RE: FCC part 15 class B, GTEM? Charles, Sorry, I guess I was in error with the Volumetric Site Attenuation inside a GTEM

RE: FCC part 15 class B, GTEM?

1999-11-29 Thread Grasso, Charles (Chaz)
Yes that is correct. BTW, how does one do the volumetric site attenuation in a GTEM? -Original Message- From: wolfgang_josenh...@3com.com [mailto:wolfgang_josenh...@3com.com] Sent: Monday, November 29, 1999 8:26 AM To: Grasso, Charles (Chaz) Cc: emc-p...@majordomo.ieee.org; 'ron_cher

RE: FCC part 15 class B, GTEM?

1999-11-28 Thread Grasso, Charles (Chaz)
I don't belive you can... Thank you Charles Grasso StorageTek 2270 Sth 88th Street Louisville CO 80027 Tel: (303)673-2908 Fax(303)661-7115 -- From: ron_cher...@densolabs.com[SMTP:ron_cher...@densolabs.com] Sent: Wednesday, November 24, 1999 9:30 AM To:

Article on UL

1999-11-24 Thread Grasso, Charles (Chaz)
Forgive a jaded old man but two things jumped out at me when I read the article. 1. In many other countries, standards are set or approved by a government entity with industry involvement. U.S. safety standards, on the other hand, are set primarily

RE: FCC part 15 class B, testing

1999-11-24 Thread Grasso, Charles (Chaz)
This is really a no brainer... To summarize: The answer to your questions is NO for the following reasons: 1. You are testing in an anechoic chamber (Read also K.Javors analysis) 2. The antenna cannot be raised to its full height requirement. Thats the bad news. The good news is that the FCC

RE: Is Your Head Clamp CE Marked?

1999-11-15 Thread Grasso, Charles (Chaz)
I hesitate to even have my head examined.. I am afraid of what is (or is not) in there!! -Original Message- From: aimee.l.da...@us.ul.com [mailto:aimee.l.da...@us.ul.com] Sent: Monday, November 15, 1999 10:23 AM To: Scott Douglas Cc: EMC-PSTC (E-mail) Subject: Re: Is Your Head Clamp CE

RE: Emission / Enclosure

1999-11-04 Thread Grasso, Charles (Chaz)
Ken, agreed -Original Message- From: Ken Javor [mailto:ken.ja...@emccompliance.com] Sent: Thursday, November 04, 1999 12:49 PM To: Westin, Amund; 'emc-pstc' Subject: Re: Emission / Enclosure My opinion: From 30 - 1000 MHz the material is not as important as the treatment of seams and

Now available: Embedded Capacitance Presentation

1999-11-01 Thread Grasso, Charles (Chaz)
To all interested parties: The slides from the October RMCEMC meeting titled: Embedded Capacitance: The next step in PWB Design is now available from our website: http://www.ewh.ieee.org/r5/denver/rockymountainemc/ Comments will be appreciated. - This message is coming from the

Dr Hubing Presentation on Power Bus Structures

1999-11-01 Thread Grasso, Charles (Chaz)
The Rocky Mountain Chapter of the IEEE EMC Society is finishing the old millenium with a bang!! We invite one and all to see.. Presenter: Dr. Todd Hubing from the University of Missouri,Rolla Date : November 11th, 1999. Times : 1:00pm - 4:30pm Location: National Institute for Standards and

Wedge Picture

1999-10-28 Thread Grasso, Charles (Chaz)
Hello, Here is a picture of a wedge used for the Radiated Immunity testing one of our products. It worked remarkably well. cone Thank you Charles Grasso StorageTek 2270 Sth 88th Street Louisville CO 80027 Tel: (303)673-2908 Fax(303)661-7115 attachment: cone.jpg

[SI-LIST] : Comment on seminar

1999-10-28 Thread Grasso, Charles (Chaz)
To all interested parties: Sadly Lee Ritchey declined to discuss details of his seminar in public. Thank you Charles Grasso StorageTek 2270 Sth 88th Street Louisville CO 80027 Tel: (303)673-2908 Fax(303)661-7115 To unsubscribe from si-list: send e-mail to majord...@silab.eng.sun.com. In

RE: [SI-LIST] : Comments from your SI seminar (SendII)`

1999-10-27 Thread Grasso, Charles (Chaz)
connection to the ground plane is sufficient. I would like to hear a take from an EMI person. Regards, Paul S. Denomme Viasystems Inc. Richmond, VA paul.deno...@viasystems.com -Original Message- From: Grasso, Charles (Chaz) [SMTP:gra...@louisville.stortek.com] Sent: Wednesday

Presentation Availability for Embedded Capacitance

1999-10-06 Thread Grasso, Charles (Chaz)
To all interested parties: For all those seeking a copy of the presentation - Good News!! There will be a presentation available in pdf format about 1 week after the meeting. I will send the link out when the download is available. - This message is coming from the emc-pstc

Embedded Capacitance - The Nest Step in PWB Design

1999-10-05 Thread Grasso, Charles (Chaz)
To all interested parties: The Rocky Mountain Chapter of the EMC Society is proud to announce its next meeting: Embedded Capacitance - The Next Step in PWB Design. When: October 14th For more information please go to our website at: http://www.ewh.ieee.org/r5/denver/rockymountainemc Charles

80/80 rule explanation offerred

1999-09-08 Thread Grasso, Charles (Chaz)
Compliance 303.673.2438 phone 303.673.2431 fax StorageTek INFORMATION made POWERFUL -Original Message- From: Grasso, Charles (Chaz) Sent: Thursday, August 26, 1999 6:23 PM To: SAFETY-EMC (Adresse de messagerie); 'Pierre Selva' Cc: Monsen, Monrad L Subject: RE: 80/80 calculation

Tran Tasman Agreement

1999-09-05 Thread Grasso, Charles (Chaz)
Hello.. Does anyone know if the Tran Tasman agreement was actually signed and went into effect on Jan 1 1999? Information on the web indicates otherwise.. Thank you Charles Grasso StorageTek 2270 Sth 88th Street Louisville CO 80027 Tel: (303)673-2908 Fax(303)661-7115 - This message is

RE: CE Marking requirements

1999-08-25 Thread Grasso, Charles (Chaz)
As far as I know, the EU has not adopted the insane FCC Class B compliance process. So there is NO procedure for marking a motherboard as a compliant unit. What you can do is test it in a system (just like the old days) and mark the motherboard based on that test ALONE. If I understand your

Question on top 6 frequencies

1999-08-23 Thread Grasso, Charles (Chaz)
Hello... I need a rumor confirmed or quashed. I have heard that at a recent USCEL meeting in Seattle, the existing procedure of reporting only the top 6 freqs is no longer considered acceptable. Can any one confirm this? Thank you Charles Grasso StorageTek 2270 Sth 88th Street Louisville CO

Internal ESD testing EN55024

1999-08-16 Thread Grasso, Charles (Chaz)
First I would like to thank the group.As usual the open sharing of ideas provides a lot of insight to me. I have one question though - I am particularly interested in the requirements for EN55024. Has anyone changes their ESD procedures as a result of the internal ESD requirement of the spec?

Question on internal ESD testing

1999-08-13 Thread Grasso, Charles (Chaz)
Hello, Does anyone in this august group apply ESD discharges INTERNAL to a product as required by EN55024. I consider this just a tad egregious - don't you? Thank you Charles Grasso Advisory Engineer StorageTek 2270Sth 88th Street Louisville CO 80027 M/S 4247. Tel:303-673-2908

RE: CISPR 22 equal to EN55022?

1999-07-09 Thread Grasso, Charles (Chaz)
IMHO, As I understand it the latest Amendments of CISPR22 are not necessarily in EN55022. Indeed they may be modified or rejected by the EU and so they may NOT be the same. Thank you Charles Grasso StorageTek 2270 Sth 88th Street Louisville CO 80027 Tel: (303)673-2908 Fax(303)661-7115

RE: Re:EMC Experiments

1999-07-07 Thread Grasso, Charles (Chaz)
You might contact the Education Committee at the IEEE. They are committed to the Education on EMC and have put on may successful experiment demos at EMC Conferences. (As the Workshop/Tutorial Experiments Chair for Denver 1998 I can personally attest to thet quality of the expeiments and demo).

RE: NEAR/ FAR FIELD CORRELATION ISSUES

1999-06-23 Thread Grasso, Charles (Chaz)
Ken, Schedule is ALWAYS an issue for any testing be it EMC or temperature. I have found that when companies work the issue into their schedules EMC is of minimal impact. If we allow volume to dictate practices that are patently wrong, then I belive we make the EMC testing pointless. Thank you

RE: NEAR/ FAR FIELD CORRELATION ISSUES

1999-06-19 Thread Grasso, Charles (Chaz)
[mailto:earl.mo...@compaq.com] Sent: Friday, June 18, 1999 3:36 PM To: Grasso, Charles (Chaz); 'Lou Gnecco'; emc-p...@majordomo.ieee.org Subject: RE: NEAR/ FAR FIELD CORRELATION ISSUES I beg to differ. It is ludicrous to believe that components or for that matter subassemblies can be certified

ITE Equipment installed in hospitals

1999-06-18 Thread Grasso, Charles (Chaz)
Does anyone know if ITE equipment is required to meet any Medical requirements if installed in a hospital. (No patient connections!!) Thank you Charles Grasso StorageTek 2270 Sth 88th Street Louisville CO 80027 Tel: (303)673-2908 Fax(303)661-7115 - This message is coming from the

RE: History Class ...

1999-05-29 Thread Grasso, Charles (Chaz)
All, The general consensus is that the emissions specs were derived to protect intentional receivers. ALERT: Be aware that a giant ITE company that has a vested interest in PCs has managed to render the emissions spec. useless. Somehow the FCC allowed FCCB + FCCB = FCCB in CFR47 for component

Thank you all.

1999-05-13 Thread Grasso, Charles (Chaz)
I am always astonished at the depth of knowledge and willingness to share. Thank you all for your help Thank you Charles Grasso Advisory Engineer StorageTek 2270Sth 88th Street Louisville CO 80027 M/S 4247. Tel:303-673-2908 Fax:303-661-7115 email:gra...@louisville.stortek.com Web Site:

Immunity requirements for equiment sold to research labs.

1999-05-11 Thread Grasso, Charles (Chaz)
Can anyone tell me what the Immunity requirements for equiment sold to research labs might be. Charles Grasso Advisory Engineer StorageTek 2270Sth 88th Street Louisville CO 80027 M/S 4247. Tel:303-673-2908 Fax:303-661-7115 email:gra...@louisville.stortek.com Web Site:

Reminder - Register before May 12 for RMCEMC Symposium

1999-05-09 Thread Grasso, Charles (Chaz)
Hello, For all you folks interested in attending the RMCEMC EMC Symposium on May 18 - a reminder.!! Register (using our easy online form) before May 12 and get FREE breakfast AND lunch. Our website address is http://www.ewh.ieee.org/r5/denver/rockymountainemc Thank you Charles Grasso

Anyone interested in PCB Design Techniques for SI EMC?

1999-03-23 Thread Grasso, Charles (Chaz)
The Rocky Mountain Chapter of the EMC Society will be hosting a Mr. Mark Montrose who will present a 3.5 hr training class on PCB Design Techniques for SI EMC. He will also present research data (unpublished and undiscovered) on the performance of decoupling capacitors at this meeting. For more

RE: explanation of ESD events with coins in baggie.

1999-03-11 Thread Grasso, Charles (Chaz)
I would recommend that Doug Smith of Auspex Systems answer this one as he has presented this at an ANSI C63 ESD meeting and to the FAA.(He managed to crash their computers)!! Thank you Charles Grasso Advisory Engineer StorageTek 2270Sth 88th Street Louisville CO 80027 M/S 4247. Tel:303-673-2908

RE: Current Probes

1999-03-06 Thread Grasso, Charles (Chaz)
...@trans.sandiegoca.ncr.com] Sent: Friday, March 05, 1999 4:47 PM To: Grasso, Charles (Chaz); emc-p...@ieee.org Subject: RE: Current Probes Chaz, I was scrolling through old messages and came across this one. Always ready to provide a counter example, I routinely use a current probe at 500 MHz on our high

RE: Seeking PCs that Pass CISPR

1999-03-05 Thread Grasso, Charles (Chaz)
Unfortunately - its now the law (of this land) anyway!! -Original Message- From: lfresea...@aol.com [mailto:lfresea...@aol.com] Sent: Friday, March 05, 1999 10:17 AM To: Grasso, Charles (Chaz); nbels...@nortelnetworks.com; eric.lif...@natinst.com; emc-p...@majordomo.ieee.org Subject: Re

RE: Signal Line Output Surge Protection

1998-12-09 Thread Grasso, Charles (Chaz)
I would suggest a spark gap designed into the artwork. These work very effectively. Thank you Charles Grasso (Capn Hook) -- From: UMBDENSTOCK, DON[SMTP:umbdenst...@sensormatic.com] Sent: Tuesday, December 08, 1998 11:26 AM To: 'EMC-PSTC Discussion Group' Subject:

Compliance Issue on (Need 220VAC Power Strips for Racks)

1998-12-09 Thread Grasso, Charles (Chaz)
Well I trust you have found the strip. I would like to take this opportunity to ask a complinace question. If you are supplying rack equipment, how do you intend to verify the EMC performance of the final configuration? Thank you Charles Grasso (Capn Hook) -- From:

RE: ESD Test Plane Material Type

1998-12-08 Thread Grasso, Charles (Chaz)
Hello.. I have performed ESD tests in many different labs and have come across all the typical variations one would expect. I could not discern any performance difference between a copper or aluminium or even a galvanized steel ground plane. Thank you Charles Grasso StorageTek 2270 Sth 88th

RE: Doubt on LISN utilization

1998-12-07 Thread Grasso, Charles (Chaz)
CISPR does NOT require the Ground choke.. Thank you Charles Grasso (Capn Hook) -- From: Muriel Bittencourt de Liz[SMTP:mur...@inep.ufsc.br] Sent: Monday, December 07, 1998 3:46 AM To: Helge Knudsen Cc: 'EMC-PSTC - IEEE' Subject: Re: Doubt on LISN utilization

RE: Doubt on LISN utilization

1998-12-05 Thread Grasso, Charles (Chaz)
Gary (and others): I have the same recollection vis-a-vis the VDE COnducted emisions requirements. Thank you Charles Grasso (Capn Hook) -- From: Gary McInturff[SMTP:gmcintu...@packetengines.com] Sent: Friday, December 04, 1998 2:12 PM To: rehel...@mmm.com; Muriel

RE: Coatings that affect EMC performance

1998-12-01 Thread Grasso, Charles (Chaz)
Try Chromate... Thank you Charles Grasso StorageTek 2270 Sth 88th Street Louisville CO 80027 MS 4262 gra...@louisville.stortek.com Tel:(303)673-2908 Fax(303)661-7115 -- From: UMBDENSTOCK, DON[SMTP:umbdenst...@sensormatic.com] Reply To: UMBDENSTOCK, DON Sent:

RE: Current Probes

1998-11-25 Thread Grasso, Charles (Chaz)
There is no doubt that the use of a current probe can effectively illuminate problems with an EUT. But the method can really only be used effectively up to about 200MHz or so and (heres the kicker) is about 6db harsher on the EUT than the Radiated Immunity test. In other words, you may cause a

RE: ENEC Mark for ITE Other Equipment

1998-11-24 Thread Grasso, Charles (Chaz)
I believe that it is the ENEC Mark of the VDE (ENEC-Zeichen des VDE) for products conforming to harmonized certification procedures; VDE mark is optional. Thank you Charles Grasso StorageTek 2270 Sth 88th Street Louisville CO 80027 MS 4262 gra...@louisville.stortek.com Tel:(303)673-2908

SCSI on internal unshielded cables

1998-10-23 Thread Grasso, Charles (Chaz)
Hello! Has anyone successfully run SCSI internally using unshielded flat cables? There is some controversy as to cross-talk and Signal Integrity and I would really like other folks responses. Thank you Charles Grasso (Captain Hook) EMC Engineer StorageTek 2270 Sth 88th Street Louisville CO

RE: Are all these agencies really necessary?

1998-09-10 Thread Grasso, Charles (Chaz)
Would someone please explain the OM (Overall Mark)? Thank you Charles Grasso (Captain Hook) EMC Engineer StorageTek 2270 Sth 88th Street Louisville CO 80027 MS 4262 gra...@louisville.stortek.com Tel:(303)673-2908 Fax(303)661-7115 -- From: Peter E.

RE: Are all these agencies really necessary?

1998-09-10 Thread Grasso, Charles (Chaz)
To: dmitch...@eoscorp.com Sent: Thursday, September 10, 1998 11:52 AM To: Grasso, Charles (Chaz); 'emc-pstc' Subject: RE: Are all these agencies really necessary? The OM was just an example for purposes of illustration. A better name for such a hypothetical beast would

RE: Looking for Horror Stories

1998-07-15 Thread Grasso, Charles (Chaz)
Jim, I sense you may be in justification mode or worse the phrase value add has reared up. Well, IMHO we have become victims of our own success. Due to the diligence of many EMC Engineers and the increase in digital transmissions, cable TV etc, high visibility interference (nuisence) related

RE: CB scheme

1998-06-23 Thread Grasso, Charles (Chaz)
I have been told that the Russian Authorities will only accept a CB report from Nemko. Is this true? Thank you Charles Grasso EMC Engineer StorageTek 2270 Sth 88th Street Louisville CO 80027 MS 4262 gra...@louisville.stortek.com Tel:(303)673-2908 Fax(303)661-7115 Symposium Website URL:

RE: EMC/Safety in Poland

1998-06-18 Thread Grasso, Charles (Chaz)
I have an ITE question.. Is the Polish B mark required for Class A gear (as defined by CISPR22)? Thank you Charles Grasso EMC Engineer StorageTek 2270 Sth 88th Street Louisville CO 80027 MS 4262 gra...@louisville.stortek.com Tel:(303)673-2908 Fax(303)661-7115 Symposium Website URL:

RE: GS Requirements

1998-04-28 Thread Grasso, Charles (Chaz)
I have been following this thread with interest and would like to ask Ing. Gert Gremmen a pointed question. Gert, In your email you stated: For the moment all i want to say is that the GOAL of all so-called new-approach directives is and was to stop all barriers that existed for importing and

RE: EN 55022 ITE Class A vs. Class B?

1998-04-08 Thread Grasso, Charles (Chaz)
Well, This would be an appropriate occasion to open this can of worms again! Ing. Gert Gremmen's response would, at first blush, lead you to conclude that the whole of the EU believes that Class B is the REQUIRED emissions level for ITE. I do not agree. The push for Class B for ITE has been and

IEEE Conference

1997-09-02 Thread Grasso, Charles (Chaz)
Would anyone care to share what they learned at the conference in Austin. I have put together some am willing to mail it off to anyone who replies. Charles Grasso EMC Engineer StorageTek gra...@louisville.stortek.com Tel:(303)673-2908 Fax(303)661-7115

RE: Antenna Calibration/Site Attenuation

1997-08-25 Thread Grasso, Charles (Chaz)
Hi, Yes I attended that presentation. In ANSI C63.4 Methods for SA there is a fudge factor for taking out the mutual coupling between antennas for 3M SA measurements. Doesn't this take care of the problem? Charles Grasso EMC Engineer StorageTek gra...@louisville.stortek.com Tel:(303)673-2908

RE: Graphics NOT in posts

1997-07-17 Thread Grasso, Charles (Chaz)
I would like to align my vote with Brent DeWitt. Simply ask who wants a particular file then send it directly to the person requesting the input. Charles Grasso EMC Engineer StorageTek gra...@louisville.stortek.com Tel:(303)673-2908 Fax(303)661-7115 -- From:

RE: ESD Simulators

1997-07-15 Thread Grasso, Charles (Chaz)
Years ago I had the opportunity of working with a top flight consultant on ESD and the human-body model. The only manufacturer that produced an ESD simulator that ACCURATELY reflected the Human Body pulse was Andy Hish. The ESD simulators today produce a facimile of the true ESD event in the

RE: Re[2]: alternate test sites

1997-07-14 Thread Grasso, Charles (Chaz)
Hey keep this technical will you?? Charles Grasso EMC Engineer StorageTek Tel:(303)673-2908 Fax(303)661-7115 -- From: tania.gr...@octel.com[SMTP:tania.gr...@octel.com] Sent: Monday, July 14, 1997 11:51 AM To:emc-p...@ieee.org; Alan Hudson +44 (0)1383-821921 Cc:

RE: EN61000-3-2

1997-07-09 Thread Grasso, Charles (Chaz)
OK Here is the latest information I have received from CENELEC. Last week's Technical Board (BT) meeting confirmed that the dow of EN 61000-3-2 and 61000-3-3 is 2001-01-01 for all products. BT also decided to launch a 2month vote on the withdrawal of EN 61000-3-2/A12 (that set the dow for

RE: Receivers, Digital Spectrum Analyzers, Analog Spectrum Analyzers

1997-07-01 Thread Grasso, Charles (Chaz)
I agree with your comment vis-à-vis field strength etc.. As long as the reading is accurate, the equipment type is moot. However the attainment of this desired goal is not straight forward. I am a conservative type and have concerns with dSAs in two areas. First, dSAs (at least the one I use )

ITE Immunity Questions

1997-06-30 Thread Grasso, Charles (Chaz)
Greetings All, My company manufactures ITE equipment tested and verified to EN55022 and EN50082-1 the generic light immunity standard. With impending release of CISPR24 some questions come to mind. 1. Does the new ITE immunity standard apply to equipment in a warehouse (i.e. NOT put into

RE: EN61000-3-2 - RUMOURS

1997-05-27 Thread Grasso, Charles (Chaz)
This is the information I have managed to get from Cenelec. It directly contradicts earlier statements published on this site. I have asked for clarification. CENELEC statement: Like I explained in an earlier email the dow (date for withdrawal of conflicting standards) of 2001-01-01 was proposed

ESD testing survey.

1997-05-16 Thread Grasso, Charles (Chaz)
Greetings group! I would like to take a survey of the ESD testing practices prevalent in manufacturers of electronic equipment. The purpose of this information is to get a better understanding of the alignment of my company with respect to the industry and ESD testing in particular. Basically -

RE: Certified Devices

1997-04-23 Thread Grasso, Charles (Chaz)
The answer to question is the same.. I also came from a major PC vendor and shared some of the experiences of my collegues. The three vendors I gave you (Seagate, Maxtor Quantum) all put significant time money into EMC and test their drives at a component level. They all strive to meet the

RE: Standards Titles

1997-04-23 Thread Grasso, Charles (Chaz)
...@ieee.org' Subject:Re: Standards Titles Grasso, Charles (Chaz) wrote: Hi - The information I have is this: Canada: ICES-003: 1994 Emissions No Immunity Hi Charles, Whatever happened to Canada C108.8 A, superceded? Regards

ITE Immunity

1997-04-18 Thread Grasso, Charles (Chaz)
From: The Chairman of CISPR 24 We will learn more when the CENELEC committee meets in late May. Soon after, late June, we (CISPR/G guys) will meet to redraft CISPR 24 for a distribution as a new proposed draft standard. I hope that we will go for a final vote in time to complete this by year end.

RE: EN 61000-3-2 compliance date

1997-04-16 Thread Grasso, Charles (Chaz)
I have, from CENELEC a competent body in the UK, confirmed that the 61000-3-2 that 1 June 1998 IS the date the standard applies to products NOT covered by the previous standard EN60555-2. Charles Grasso EMC Engineer StorageTek Tel:(303)673-2908 Fax(303)661-7115 -- From: Paul M.

RE: CE marking components... a breath of fresh air...

1997-04-15 Thread Grasso, Charles (Chaz)
Excellent review Peter! I would add one thought for you to comment on. My company routinely ships its products in pieces to be assembled at a customer site due to size and complexity. We toyed with the idea of adding the phrase Part of a CE compliant system on the shipping containers.

RE: VCCI labelling

1997-04-05 Thread Grasso, Charles (Chaz)
, 1997 6:54 AM To: Grasso, Charles (Chaz); 'EMC Group' Subject:RE: VCCI labelling Does anyone have samples of the new label ? -- From: Grasso, Charles (Chaz)[SMTP:gra...@louisville.stortek.com] Sent: 04 April 1997 01:06 To:'EMC Group' Subject: VCCI labelling I

RE: Requirements for Asian Countries?

1997-03-29 Thread Grasso, Charles (Chaz)
Near as I can tell, the new Chinese EMC law will be required for Taiwan China. I have heard that Korea is moving in the direction of CISPR 22. Can anyone else flesh in the details? -- From: Mike Elliott[SMTP:au...@electriciti.com] Sent: Friday, March 21, 1997 6:08 PM To:

RE: ITE approvals for Australia

1997-03-28 Thread Grasso, Charles (Chaz)
the Radiocommunication Act of 1992. Who can I go to that can answer my question definitively? -- From: Jason L. Chesley[SMTP:103401.1...@compuserve.com] Sent: Wednesday, March 26, 1997 4:48 PM To: Grasso, Charles (Chaz) Subject:Re: ITE approvals for Australia Mr. Grasso

ITE approvals for Australia

1997-03-27 Thread Grasso, Charles (Chaz)
Does anyone know if IMMUNITY testing is required for ITE equipment for the C-Tick mark?

RE: Effective EMI coatings for steel, aluminum, plastic.

1997-03-25 Thread Grasso, Charles (Chaz)
Hello all, I have been watching this discussion with interest and the phrase environmentally friendly keeps cropping up. Can any one tell me of any EU or indeed world standards that pertain to the recycling on plastic parts that have been coated for EMC purposes? -- From: Eric

Blue Angel

1997-03-19 Thread Grasso, Charles (Chaz)
Can anyone point me in the direction of any information on this subject...

RE:

1997-02-26 Thread Grasso, Charles (Chaz)
Good Question. The best information I have is that you can expect the release of prEN50082-1(1996) mid to late this year. However, the real question is - what is the transition time? Currently the transition time (i.e. when the old standard MUST be withdrawn) is four years!!. So if that holds the

RE: IEC 1000-4-6

1997-02-25 Thread Grasso, Charles (Chaz)
1000-4-6 is referenced in prEN50082-1(1996). The best information available indicates that this standard will be released sometime in 4Q1997. It is currently held up due to a disagreement over the transition period. The other standard that 1000-4-6 is referenced in is prEN55024 (ITE Immunity). The

RE: Penalty for Non-Compliance

1997-02-25 Thread Grasso, Charles (Chaz)
Have you any information as to the results of this inspection?? -- From: brian_mcauliffe_at_irela...@pcmail.tellabs.com[SMTP:Brian_McAuliffe_at_irela n...@pcmail.tellabs.com] Sent: Sunday, February 23, 1997 9:06 PM To:emc-p...@mail.ieee.org; Brian Kunde Subject: Re:

RE: Penalty for Non-Compliance

1997-02-25 Thread Grasso, Charles (Chaz)
I just saw this E-Mail and I have to say I find NO FAULT with this approach. The rules DO allow for limited testing based on sound engineering judgement. However I understand that if limited testing is performed, then you need to get a competent body to agree with you bingo - you are legal! So