Ferrite snap-on rfi suppression for cable in AM BCB

2008-08-12 Thread Ken Javor
Does anyone out there know of a product or material that could be clamped or formed around an installed cable and be absorptive, not inductive, in the low end of the AM BCB (around 500 - 800 kHz)? Thank you, Ken Javor Phone: (256) 650-5261 -

Re: Another Cancer Scare?

2008-08-12 Thread John Woodgate
In message 201048ea81ba0745aca78e4cc883900103171...@desmdswms201.des.grplnk.net, dated Tue, 12 Aug 2008, Haynes, Tim (SELEX GALILEO, UK) tim.hay...@selexgalileo.com writes: there is no contest - I will keep using the mobile phone but it is TOO RISKY to go to work! But DO get up in the

RE: Another Cancer Scare?

2008-08-12 Thread Gert Gremmen
So a health risk assessor would recommend you not to go to bed then .. Gert Gremmen Van: emc-p...@ieee.org [mailto:emc-p...@ieee.org] Namens John Woodgate Verzonden: Tuesday, August 12, 2008 11:21 AM Aan: emc-p...@ieee.org Onderwerp: Re: Another Cancer Scare? In message

RE: Ferrite snap-on rfi suppression for cable in AM BCB

2008-08-12 Thread Gert Gremmen
I do not think so. Unless you are ready for huge volumes of ferrite. Normal snap-on ferrites (large ones) are effective only from 50 MHz off, and the effect may be improved at the cost of it’s effectiveness in the 100’s of MHz range by winding the cable 2 -3 times through the ferrite.

RE: Ferrite snap-on rfi suppression for cable in AM BCB

2008-08-12 Thread Cortland Richmond
At work we bought some giant Ferrishield snap-on beads for 200$US each. They'r e really only useful for troubleshooting and we got them because we need to go over 5cm diameter cables. 5cm ID, and 115mm OD. VERY heavy. But even with their size and weight, teh material provided would be

Re: NEBS Compliant Components

2008-08-12 Thread Ted Eckert
There is so much involved in NEBS testing that it would be hard to qualify individual components. A hard disk or power supply might pass the temperature and vibration tests, but the final configuration will determine EMI performance. The fire testing is impossible to do on most of these

RoHs Compliance - any pointers?

2008-08-12 Thread Grasso, Charles
Hi all, I have been tasked with looking into RoHs requirements. Is there a definitive source of information that I can use? (Gooling RoHs has way to many hits!) Thanks!! Best Regards Charles Grasso Compliance Engineer Echostar Communications (w) 303-706-5467 (c) 303-204-2974 (t)

RE: RoHs Compliance - any pointers?

2008-08-12 Thread Charles Blackham
http://www.rohs.gov.uk/ is a good starting point regards Charlie From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of Grasso, Charles Sent: 12 August 2008 17:29 To: emc-p...@ieee.org Subject: RoHs Compliance - any pointers? Hi all, I have been

Excess EMC Test Equipment For Sale

2008-08-12 Thread Don Clayton
The following EMCO test equipments are offered at 1/2 current prices: EMCO 3301B active E-field monopole antenna $1600. EMCO 6502 H field loop antenna $1800. EMCO 3825 25 Amp LISN $1800. 240 X 240 2KVA isolation transformer $900. Don Clayton ESR Engineering Inc. Internal Virus Database

RE: NEBS Compliant Components

2008-08-12 Thread Brian O'Connell
Nothing I say represents the opinions or policy of my employer. I very much concur with Mr Eckert. NEBS for 'components' is seldom cost effective for anything other than very simple stuff, and may not be representative of the component's performance in the end-use installation. My employer has

Copies of CNS standards

2008-08-12 Thread Grasso, Charles
Hello list members, Where can I buy copies of the CNS standards? Best Regards Charles Grasso Compliance Engineer Echostar Communications (w) 303-706-5467 (c) 303-204-2974 (t) 3033022...@vtext.com (e) charles.gra...@echostar.com (e2) chasgra...@gmail.com -

RE: Copies of CNS standards

2008-08-12 Thread Brian O'Connell
may not be safe for some browsers - www.cnsonline.com.tw/en/ also, ANSI has CNS - http://webstore.ansi.org From: emc-p...@ieee.org [mailto:emc-p...@ieee.org]On Behalf Of Grasso, Charles Sent: Tuesday, August 12, 2008 10:25 AM To: emc-p...@ieee.org Subject: Copies of CNS standards Hello list

Re: RoHs Compliance - any pointers?

2008-08-12 Thread Doug Nix
If you are looking for a good RoHS consultant, contact Walter Jager: Mr. Walter Jager, 50 Delamere Drive, Stittsville, ON K2S 1R2 Canada Phone: (613) 836-4181 Fax: (613) 836-7172 email: wja...@rohs-consulting.com URL: www.rohs.ca www.rohs-consulting.com LinkedIn:

RE: Copies of CNS standards

2008-08-12 Thread Knighten, Jim L
Charles, I found acquisition of CNS 13438 to be difficult. Couldn't find it on the ANSI site. To purchase from cnsonline, you must purchase a HiTech prepaid card and that was the difficult part for us. The web site was difficult. We finally got our in-country rep. to get it for us. They said

RE: Copies of CNS standards

2008-08-12 Thread Brian O'Connell
For the ANSI webstore, did you look under Chinese GB ? About 15 months ago I bought a Chinese std from ANSI - so do not know what changed. I just visited the cnsonline and bsmi.gov.tw sites and got a multitude of 404 errors, and a 301 (moved). Also, perhaps Grace Lin could advise, as she once

RE: Copies of CNS standards

2008-08-12 Thread Knighten, Jim L
I did a quick search on the ANSI web site for Chinese GB, as suggested. I got 1500 hits, but could not find CNS 13438 and all documents I browsed through (not all 1500) were in Chinese language, which is of no help to me. Jim James L. Knighten, Ph.D. EMC Engineer Teradata Corporation 17095 Via

RE: Copies of CNS standards

2008-08-12 Thread Ted Eckert
The GB standards are for mainland China. The CNS standards are for Taiwan. ANSI does not have many Taiwanese standards. BSMI is the best place to get it, but their web site isn't working properly right now. (At least the English section is not.) CE Magazine does have an old comparison between

RE: NEBS Compliant Components

2008-08-12 Thread Peter Tarver
FWIW, some components that are sold specifically into the telecom environment *could* have *some* of the testing done on them, but such component manufacturers do little or nothing toward 'certification.' Some do more than others; it's a tricky affair. For some components, there's not a lot

RE: Another Cancer Scare?

2008-08-12 Thread Haynes, Tim (SELEX GALILEO, UK)
Hi all, I have been on vacation but had planned to send this in - Some interesting facts (although some might argue with the numbers, they give a rough idea) There are roughly 61 million people in the UK One in 88 of these 61 million will die by this time next year. There is a one in 300