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

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

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: [PSES] In-house Conducted emission test equipment

2020-09-09 Thread Grasso, Charles [Outlook]
So you asked “Any suggestion on such low cost test eqiupment? LISN and spectrum analyzer …” Take a look at RAMayes https://www dot ramayes dot com/ From: Ken Wyatt Sent: Friday, September 4, 2020 10:13 AM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] In-house Conducted emission test

Re: [PSES] Conducted emission - AC line filters makes it worse

2020-06-29 Thread Grasso, Charles [Outlook]
Hi – This IS an interesting problem! My question: Is the 3 –phase configures as a delta or a wye configuration? Also – What is the AC device (power supply/motors etc..) [Working From Home] Charles Grasso Crackpot Theorist Dish Technologies (c) 303-204-2974 (h) 303-317-5530 (e )

[PSES] Question regarding use of un certified radios.

2020-06-29 Thread Grasso, Charles [Outlook]
Hello EMC standards gurus!!! I am being told that the use of uncertified radios (think WIFi) in the field is permitted as long as there are no commercial transactions involved. This makes no sense to me. Am I wrong? [Working From Home] Charles Grasso Dish Technologies (c) 303-204-2974 (h)

Re: [PSES] Question regarding use of un certified radios.

2020-06-29 Thread Grasso, Charles [Outlook]
To: Grasso, Charles [Outlook] ; EMC-PSTC@LISTSERV.IEEE.ORG Subject: RE: [PSES] Question regarding use of un certified radios. This message originated outside of DISH and was sent by: micha...@acbcert.com<mailto:micha...@acbcert.com> Hi Charles, Any idea which country you’re thinking about?

Re: [PSES] Question regarding use of un certified radios.

2020-06-29 Thread Grasso, Charles [Outlook]
Thank you! From: Dennis Ward Sent: Monday, June 29, 2020 11:29 AM To: Grasso, Charles [Outlook] ; EMC-PSTC@LISTSERV.IEEE.ORG Subject: RE: [PSES] Question regarding use of un certified radios. This message originated outside of DISH and was sent by: dennis.w...@pctest.com<mailto:denni

[PSES] FCC Requirements for in-house test equipment

2020-06-19 Thread Grasso, Charles [Outlook]
Hello EMC Gurus! We in development of an inhouse piece of test gear and the question is: What (if any) are the FCC rules and procedure to cover said item.? How does the FCC cover this type of scenario? [Working From Home] Charles Grasso Dish Technologies (c) 303-204-2974 (h) 303-317-5530 (e )

Re: [PSES] SV: [PSES] Thoughts on what may be the emission source

2020-11-30 Thread Grasso, Charles [Outlook]
Late to the party - but agree with James. Look to the USB cable first (as an obvious source). Incidentally try to use a robust USB peripheral and avoid the USB memory sticks. We use external USB powered HDDs, for example). -Original Message- From: James Pawson (U3C) Sent: Saturday,

Re: [PSES] Digital logic question

2021-01-25 Thread Grasso, Charles [Outlook]
?When you say damped sine - does the amplitude decrease with time? (I presume that the measurement is at the destination). Typically there is too much series impedance (filtering?) on the signal.? From: Ken Javor Sent: Monday, January 25, 2021 9:28 AM To:

[PSES] Former Intertek 3m chamber location

2021-01-04 Thread Grasso, Charles [Outlook]
?..does anyone know where it is? Does it still exist? Thanks!! - 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

Re: [PSES] Automotive EMC training

2021-01-27 Thread Grasso, Charles [Outlook]
electronics-blogs/4376432/The-EMC-Blog> Subscribe to Newsletter<http://www.emc-seminars.com/Newsletter/Newsletter.html> Connect with me on LinkedIn<https://www.linkedin.com/in/kennethwyatt/> On Jan 26, 2021, at 2:25 PM, Grasso, Charles [Outlook] mailto:charles.gra...@dish.com>

Re: [PSES] Digital logic question

2021-01-26 Thread Grasso, Charles [Outlook]
very slow, customer is going to measure clock waveform. Ken Javor Phone: (256) 650-5261 From: "Grasso, Charles"> > Date: Tue, 26 Jan 2021 16:19:30 + To: "EMC-PSTC@LISTSERV.IEEE.ORG > " > >, Ken Javor

[PSES] Automotive EMC training

2021-01-26 Thread Grasso, Charles [Outlook]
?Hi Ken - Is the automotive EMC training from Todd Hubing available anywhere? Chas - 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

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

2021-05-24 Thread Grasso, Charles [Outlook]
design process in recent years! Chas From: Richard Nute Sent: Monday, May 24, 2021 12:45 PM To: Grasso, Charles [Outlook] ; EMC-PSTC@LISTSERV.IEEE.ORG Subject: RE: [PSES] What percentage of products pass first time? This message originated outside of DISH and was sent by: ri...@ieee.org

[PSES] What percentage of products pass first time?

2021-05-24 Thread Grasso, Charles [Outlook]
Hello EMC gurus! Calling all labs - In your experience how many products pass the Unintentional Emissions test first time? ? - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post

Re: [PSES] FCC ID and alternate constructions

2021-03-12 Thread Grasso, Charles [Outlook]
?Hi Dan - Happy Friday! - Yes you will need a new FCC ID. From: Dan Roman <0d75e04ed751-dmarc-requ...@listserv.ieee.org> Sent: Friday, March 12, 2021 6:52 AM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: [PSES] FCC ID and alternate constructions This message

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