RE: Repair of HP8562A SA - update
Just to be clear on this one, Agilent do not support the instrument any longer, however, we must remember it is quite old at this stage. They have told me that they will not guarantee to repair as some of the spares could be obsolete it but would look at it for me. John Cronin _ Thinking of changing jobs? Click here to search through thousands of vacancies. <http://g.msn.com/8HMAENUK/2746??PS=> --- 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 subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: emc_p...@symbol.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
Repair of HP8562A Spectrum Analyzer
Hi I have a HP 8562A 22 GHz spectrum analyzer with a blown input stage. HP no longer support this instrument. Can anyone advise of a suitable source of third party repair? Many Thanks John Cronin _ Get your hands on designer bargains for less - click here. <http://g.msn.com/8HMAENUK/2728??PS=> --- 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 subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: emc_p...@symbol.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
Instrument Controller Software
Hi I have a requirement to log the screens from a spectrum analyser over a period of between one day and one week. I have been using the DDDA software from Stanford research with some success. However, I need a slightly more sophisticated package that will allow me to dump screens as plots at 15 minutes intervals over a prolonged period unto a laptop using GPIB. I envisage using an Advantest 3265 or HP 8562 analyzer. Can anyone point me in the right direction? Mnay thanks John Cronin _ It's fast, it's fun and it's free! Click here to download MSN Messenger. <http://g.msn.com/8HMDENUK/2737??PS=> --- 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 subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: emc_p...@symbol.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
RE: 60601-1-2:2002
Hi I believe it has been published on 13 Dec 2002. Go to link http://europa.eu.int/eur-lex/pri/en/oj/ at/2002/c_310/c_31020021213en00040011.pdf It is En 6061-1-2:2001and has a DOW of 1.11.2004 John Cronin >From: "Brodie Pedersen" >Reply-To: "Brodie Pedersen" >To: , >Subject: RE: 60601-1-2:2002 >Date: Tue, 18 Feb 2003 08:57:17 -0600 > > >I would suggest using the new version as it has been recognized by the >FDA for submission in your 510K. I had thought it was published in the >OJ also but I must have been mistaken. > >Brodie Pedersen >Nonin Medical Inc. > >-Original Message- >From: rehel...@mmm.com [mailto:rehel...@mmm.com] >Sent: Monday, February 17, 2003 4:37 AM >To: emc-p...@majordomo.ieee.org >Subject: 60601-1-2:2002 > > > >Is EN 60601-1-2:2002 listed in the OJ? I can only find reference to the >1993 version. Can we officially use the latest version? > >Bob Heller >3M EMC Laboratory, 76-1-01 >St. Paul, MN 55107-1208 >Tel: 651- 778-6336 >Fax: 651-778-6252 >=== > > >--- >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 subscription, send mail to: > majord...@ieee.org >with the single line: > unsubscribe emc-pstc > >For help, send mail to the list administrators: > Ron Pickard: emc-p...@hypercom.com > Dave Heald: davehe...@attbi.com > >For policy questions, send mail to: > Richard Nute: ri...@ieee.org > Jim Bacher: j.bac...@ieee.org > >Archive is being moved, we will announce when it is back on-line. All >emc-pstc postings are archived and searchable on the web at: > http://www.ieeecommunities.org/emc-pstc > >--- >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 subscription, send mail to: > majord...@ieee.org >with the single line: > unsubscribe emc-pstc > >For help, send mail to the list administrators: > Ron Pickard: emc-p...@hypercom.com > Dave Heald: davehe...@attbi.com > >For policy questions, send mail to: > Richard Nute: ri...@ieee.org > Jim Bacher: j.bac...@ieee.org > >Archive is being moved, we will announce when it is back on-line. >All emc-pstc postings are archived and searchable on the web at: > http://www.ieeecommunities.org/emc-pstc _ Send instant messages for free with MSN Messenger. Click here to download it now! <http://g.msn.com/8HMXENUK/2740> --- 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 subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
RE: EN55022:1998 + A1:2000
Gert et al Can anyone provide a spec for the ferrite. For example, what is typically used in a CISPR 16 radiated power clamp? I am guessing when I say that I believe these were originally a Philips type ferrite ring. I have two of these clamps (Luthi MDS21 and Anritsu) and have found them to be quite different in terms of attenuation characteristics when used as loads in 61000-4-6 conducted immunity testing. A short tutorial on the characteristics of ferrites as used in these clamps would be nice. Is anyone aware of a source, eg in a particular standard? Best Regards John Cronin >From: "Gert Gremmen" >Reply-To: "Gert Gremmen" >To: "Gordon,Ian" , >Subject: RE: EN55022:1998 + A1:2000 >Date: Wed, 29 Jan 2003 16:54:00 +0100 > > >Hi Group, > > >Proposals are on their way to specify >both transfer attenuation (first) and >input CM impedance of those clamps (later) >The radiation properties of the exposed wire will >vary widely depending on the CM load impedance. >The attenuation characteristic is to isolate >auxilary wire (and signal) from the test setup. > >Both will be published as an Amendment on CISPR 16 >document. >A controllable impedance clamp system can be >constructed using a current clamp system >with variable load . (like current clamp/transformer) >The first 1-5 rings can be loaded with a >screened wire that terminates into a variable ( or fixed) >impedance. Target CM impedance will probably be 150 Ohm >to be transferred to the load. > >This has best impact in the lower frequency range. >High loss ferrite will do better as low loss ferrite. >Attenuation is just a matter of quantity of rings. >Regards, > >Gert Gremmen >Manager > > >Ce-test, Qualified Testing >ce marking and more .. >EMCD LVD R&TTED MDD MD >www.cetest.nl >Electrical / Electronic Equipment > > > >-Original Message- >From: owner-emc-p...@majordomo.ieee.org >[mailto:owner-emc-p...@majordomo.ieee.org]On Behalf Of Gordon,Ian >Sent: Wednesday, January 29, 2003 11:51 AM >To: emc-p...@majordomo.ieee.org >Subject: RE: EN55022:1998 + A1:2000 > > > >All >I can see that my manager would prefer to use Neven's approach - it is >probably much cheaper than buying clamps. However, does anybody have any >practical experience of this? >A reply from an accredited test house would be welcomed! > >Thanks >Ian Gordon >-Original Message- >From: neve...@attbi.com [mailto:neve...@attbi.com] >Sent: 29 January 2003 05:22 >To: emc-p...@majordomo.ieee.org >Subject: Re: EN55022:1998 + A1:2000 > > > >Instead of paying big bucks for the clamps (I am not sure what the price is, > >but I'm sure it is too much anyway :), why not buying a bucket of ferrite >doughnuts that can be used over cables. Or, when possible, building in-line >adapters out of sections of cables (maybe 1m long) and lining them up with >ferrites. I'd select a combination of ferrites to cover 30 MHz to about 300 >MHz. The high frequencies will be radiated anyway by the segment of the >cables >close to the DUT. Taking a little more thorough approach, I'd check the >impedance with the lineup fixed over a defined height above a GND plane. >(Not >sure if that would make a big practical difference.) > > >Neven > > > > A1 to EN55022:1998 requires the use of ferrite clamps on all cables >leaving > > the table-top EUT for a connection outside the test site. Are there any > > other manufacturers of these clamps other than Fischer Custom > > Communications? > > > > Richard Woods > > Sensormatic Electronics > > Tyco International > > >_ >This e-mail has been scanned for viruses by the WorldCom Internet Managed >Scanning Service - powered by MessageLabs. For further information visit >http://www.worldcom.com > >--- >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 subscription, send mail to: > majord...@ieee.org >with the single line: > unsubscribe emc-pstc > >For help, send mail to the list administrators: > Ron Pickard: emc-p...@hypercom.com > Dave Heald: davehe...@attbi.com > >For policy questions, send mail to: > Richard Nute: ri...@ieee.org > Jim Bacher: j.bac...@ieee.org > >Archive is being moved, we will announce when it is back on-line. >All emc-pstc postings are archived and
Re: Testing Sun beds in the UK.
Looks like he means 55015. After all it is effectively a luminaire. He needs a rather large Van Veen Loop. John Cronin >From: John Woodgate >Reply-To: John Woodgate >To: emc-p...@majordomo.ieee.org >Subject: Re: Testing Sun beds in the UK. >Date: Thu, 9 Jan 2003 21:31:45 + > >I read in !emc-pstc that David Sproul >wrote (in >) about 'Testing Sun beds in the UK.' on Thu, 9 Jan 2003: > >Hello group, > >I am looking for a test house in the UK that can test a sun bed to >EN50015 > >That can't be the right standard: > >Pub Id : >BS EN 50015:1998 > >Status : >Current > >Title : >Electrical apparatus for potentially explosive atmospheres. Oil >immersion "o" > >Description : >Requirements for construction and testing of oil-immersed electrical >apparatus, oil-immersed parts of electrical apparatus and Ex components >in the type of protection 'o'. To be read in conjunction with BS EN >50014:1998 > >Int Relationships : >EN 50015:1998 IDT > >Replaces : >BS EN 50015:1994 > >Replaces Notes : >Replaces BS EN 50015:1994 which remains current. > > >-- >Regards, John Woodgate, OOO - Own Opinions Only. >http://www.jmwa.demon.co.uk >Interested in professional sound reinforcement and distribution? Then go to >http://www.isce.org.uk >PLEASE do NOT copy news posts to me by E-MAIL! > >--- >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 subscription, send mail to: > majord...@ieee.org >with the single line: > unsubscribe emc-pstc > >For help, send mail to the list administrators: > Ron Pickard: emc-p...@hypercom.com > Dave Heald: davehe...@attbi.com > >For policy questions, send mail to: > Richard Nute: ri...@ieee.org > Jim Bacher: j.bac...@ieee.org > >All emc-pstc postings are archived and searchable on the web at: > http://ieeepstc.mindcruiser.com/ > Click on "browse" and then "emc-pstc mailing list" _ MSN 8 with e-mail virus protection service: 2 months FREE* http://join.msn.com/?page=features/virus 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 subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: http://ieeepstc.mindcruiser.com/ Click on "browse" and then "emc-pstc mailing list"
RE: FCC Part 15 Labeling under Verification
Thanks to both of you for your responses. I fully understand that the product should not exhibit the FCC logo. From my reading of the FCC suggested labeling format as referenced by Karin the product should only show the manufacturers name, the model number and country of origin. It should not state that "this unit may cause interference etc". Is this correct? Is there any reason why a manufacturer cannot show this information if they do not mention "FCC" in nay way? Thanking you for your assistance. John From: "Silberhorn Karin, Essen" Reply-To: "Silberhorn Karin, Essen" Hello John, for verification you shall not put on your product label neither an FCC ID nor in any other way indicate your product having been approved by the FCC. Please check also the following weblinks - it is rather good explained: http://www.fcc.gov/oet/info/filing/ead/ <http://www.fcc.gov/oet/info/filing/ead/> http://www.fcc.gov/oet/info/filing/ead/verlabel.pdf <http://www.fcc.gov/oet/info/filing/ead/verlabel.pdf> Best regards Dipl.-Ing. Karin Silberhorn TCB for USA RC & EMC International Type Approval CETECOM GmbH Partner for Market Access and Global Success Im Teelbruch 122 - 45219 Essen - Germany e-mail: karin.silberh...@cetecom.de home page: www.cetecom.com <http://www.cetecom.com/> -Original Message- From: John Cronin [ mailto:croni...@hotmail.com <mailto:croni...@hotmail.com> ] Sent: Tuesday, October 22, 2002 7:13 PM To: emc-p...@majordomo.ieee.org Subject: FCC Part 15 Labeling under Verification Hi Group I am trying to work my way through the FCC part 15 labeling for verification process. The regs say (reproduced at the end of this email) "All other devices shall bear the following statement in a conspicuous location on the device" Does this mean that for Class A verification that it is only necessary to put labeling in the documentation only or is it required that the device bears wording also. It is clear from the regs that the documentation must be labeled but after a number of revisits I find it difficult to find the definitive instruction that the verification route device must be labeled. In other words is the Class A device "other" or not. Regards John Cronin § 15.19 labeling requirements. (a) In addition to the requirements in part 2 of this chapter, a device subject to certification, notification, or verification shall be labeled as follows: (3) All other devices shall bear the following statement in a conspicuous location on the device: This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. _ Unlimited Internet access for only $21.95/month. Try MSN! http://resourcecenter.msn.com/access/plans/2monthsfree.asp <http://resourcecenter.msn.com/access/plans/2monthsfree.asp> --- 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/ <http://www.ewh.ieee.org/soc/emcs/pstc/> To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: http://ieeepstc.mindcruiser.com/ <http://ieeepstc.mindcruiser.com/> Click on "browse" and then "emc-pstc mailing list" _ Unlimited Internet access for only $21.95/month. Try MSN! http://resourcecenter.msn.com/access/plans/2monthsfree.asp --- 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 subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: http://ieeepstc.mindcruiser.com/ Click on "browse" and then "emc-pstc mailing list"
FCC Part 15 Labeling under Verification
Hi Group I am trying to work my way through the FCC part 15 labeling for verification process. The regs say (reproduced at the end of this email) "All other devices shall bear the following statement in a conspicuous location on the device" Does this mean that for Class A verification that it is only necessary to put labeling in the documentation only or is it required that the device bears wording also. It is clear from the regs that the documentation must be labeled but after a number of revisits I find it difficult to find the definitive instruction that the verification route device must be labeled. In other words is the Class A device "other" or not. Regards John Cronin § 15.19 labeling requirements. (a) In addition to the requirements in part 2 of this chapter, a device subject to certification, notification, or verification shall be labeled as follows: (3) All other devices shall bear the following statement in a conspicuous location on the device: This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. _ Unlimited Internet access for only $21.95/month. Try MSN! http://resourcecenter.msn.com/access/plans/2monthsfree.asp --- 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 subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: http://ieeepstc.mindcruiser.com/ Click on "browse" and then "emc-pstc mailing list"
Damped Oscillatory wave testing
Hi I am interested in purchasing gear to perform oscillatory wave testing to IEC 61000-4-10 and 61000-4-12. Can anyone in the group recommend a source of equipment? Alternatively if anyone has any info on how to perform these tests on a pre compliance basis I would be interested in finding out how it could be done. The ringwave varies from 0.1 MHz to 1 MHz and the standard shows a coil not unlike an automotive ignition coil driven via a switch from a charged capacitor. Can anyone provide a ball park figure for the capacitor value and coil inductances? Many thanks for your comments John Cronin Send and receive Hotmail on your mobile device: Click Here --- 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 subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: http://ieeepstc.mindcruiser.com/ Click on "browse" and then "emc-pstc mailing list"
Australian Telecom Surge testing
Hi group Can anyone tell me offhand whether the surge test requirement for Australia is to IEC 1000-4-5 which uses a network with a 1 uF source capacitor or is it similar to the FCC test which I believe uses a 20 uF capacitor. Best Regards John CroninJoin the worlds largest e-mail service with MSN Hotmail. Click Here --- 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 subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: http://ieeepstc.mindcruiser.com/ Click on "browse" and then "emc-pstc mailing list"
Re: CONDUCTED NOISE 2kHz-20 kHz STANDARDS
Hi I believe that there are ETSI standards with limits certainly in the acoustic band. Also GR1089 has low frequency limits.Your regular mains filter has some effect at frequencies below 150 kHz, perhaps you could get enough effect to give you enough of reduction. John Cronin >From: Christian Martí >Reply-To: Christian Martí >To: emc-p...@majordomo.ieee.org >Subject: CONDUCTED NOISE 2kHz-20 kHz STANDARDS >Date: Tue, 04 Sep 2001 13:34:49 +0200 > Get your FREE download of MSN Explorer at http://explorer.msn.com--- Begin Message --- Dear Group: We have a problem with a machine tool (a CNC milling machine) with Power Supply DRIVER SIMODRIVE 611 of SIEMENS (37 KW), the machine includes an EMC filter. The problem is the following, whenever the machine is running we measured with a Spectrum analyser the conducted noise and realized it increase significantly in the range of low frequencies (2kHz-20 kHz). 1) Does anyone know if there is a European Standard (or national standard), which limits the level of conducted noise in these range of frequencies (2 kHz.20 kHz) ? (I am used to work with EMC EN55011,were all these standards start at 150 kHz, however do not mention anything about lower frequencies. Also if we talke about the harmonics usually stop at the 40th harmonic (2kHz), so is there a gap of frequencies?). 2) How these range of frequencies could be filtered ? (standard EMC filters start usually at 100 kHz, and Harmonic filters are just for that, "harmonics") Thanks for your help --- 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 subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server. --- End Message ---
Re: Military Equimpment and the EU
Munitions of war are excluded from at least the EMC Directive. This is under the conditions of the treaty of Rome which established the European Union or was it EEC? In any event the EMC Directive does not apply to munitions of war, unless it has a dual military/non military application. I would guess that it is the same for all similar new approach directives. John Cronin >From: "Stewart, Judd" >Reply-To: "Stewart, Judd" >To: "'EMC-PSTC'" >Subject: Military Equimpment and the EU >Date: Tue, 4 Sep 2001 10:16:18 -0700 > > >Good morning! > >I am faced with coming up with a regulatory strategy for equipment that >will be sold to a foreign military (member of the EU). The equipment is >entirely military and has military unique attributes. The products range >from battery operated hand held devices to laptops that can use a battery >adapter which plugs into the mains. >All units have LI-ION batteries and High voltage inverters for powering the >LCD backlight. >Some have a standard PCMIA card slot which will allow the user to install a >commercial modem if he chooses. We do not provide this card > >I have reviewed the LVD and EMC directives and find no exclusion for >military equipment. Is there? > >What other directives may be applicable? > >Thanks in advance > >Judd Stewart >Northrop Grumman >San Diego Calif. > >--- >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 subscription, send mail to: > majord...@ieee.org >with the single line: > unsubscribe emc-pstc > >For help, send mail to the list administrators: > Michael Garretson: pstc_ad...@garretson.org > Dave Heald davehe...@mediaone.net > >For policy questions, send mail to: > Richard Nute: ri...@ieee.org > Jim Bacher: j.bac...@ieee.org > >All emc-pstc postings are archived and searchable on the web at: > No longer online until our new server is brought online and the old messages are imported into the new server. Get your FREE download of MSN Explorer at http://explorer.msn.com --- 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 subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server.
Re: Immunity testing of Headset
Thank you for your response. This is a difficult area and I find the discussion most useful. There are filters available for the audio analysers to set a specific bandwidth. Audio anlyser is probably the more correct term, I am thinking something like a HP 8903B, psophometers have a BW that covers the whole audio band. From memory EN 55024 specifies that the BW is less than 100 Hz, i.e. it can be 25 Hz.With the analyser you read the voltage from the microphone amplifier at 1 kHz with the BW set to an appropriate range. I feel that using a telephone to measure the noise breakthrough is a good method compared to voltage measurement as it can be extremely difficult to ensure decoupling of the RF energy from the auxiliary equipment. With the acoustically coupled method there is good isolation and there are no less problems with the possible longitudnal conversion loss issues of the ISN. It is horses for courses and each case may merit a different method. If it is a system that is sold with speciific telephones the acostic method makes sense. Regarding your assessment of 10dB repeatibility errors I would interested to hear from the telecoms tests labs that having been measuring the acoustic output of handsets for many years now. What is the repeatibility in their experince? My opinions, for what they are worth! Regards John Cronin >From: John Woodgate >Reply-To: John Woodgate >To: emc-p...@majordomo.ieee.org >Subject: Re: Immunity testing of Headset >Date: Sat, 25 Aug 2001 07:22:38 +0100 > > >I read in !emc-pstc that John Cronin wrote (in >) about 'Immunity testing of >Headset', on Fri, 24 Aug 2001: > > A technique commonly used and I believe may have been investigated > > by British Telecom is to use a piece of plastic tubing (garden > > hose) to couple the acoustic level to a point removed from the > > field. Keeps the microphone out of the field and avoids perturbing > > the field at the EUT. The system can be calibrated by holding an > > acoustic calibrator against the EUT end of the tube. > >With suitable precautions and a LOT of understanding of acoustics, this >can work, but errors of 10 dB or more are easily caused and may go >undetected. > > >We use a Bruel > > and Kjaer microphone preamp and power supply (expensive kit). The > > measuring device - psophometer/spectrum analyser must have a > > bandwidth of less than 100 Hz at a frequency of 1 kHz. > >Where is that specified? A psophometer is a fairly broad-band instrument >and there are several different standardized ones. If you use a spectrum >analyser, what do you do with the results? > > > > Hope this is of use. I would welcome other comments on the > > methods. BT did a lot of work and had a nice system that plotted > > the telephone audible output against frequency, the older models > > were not very good. There should be a paper available. > >What Bt's electroacoustics experts can do and what a test-house >technician, however well-trained in antennas, CISPR receivers etc., can >do are two potentially very different things! >-- >Regards, John Woodgate, OOO - Own Opinions Only. http://www.jmwa.demon.co.uk >Eat mink and be dreary! > >--- >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 subscription, send mail to: > majord...@ieee.org >with the single line: > unsubscribe emc-pstc > >For help, send mail to the list administrators: > Michael Garretson: pstc_ad...@garretson.org > Dave Heald davehe...@mediaone.net > >For policy questions, send mail to: > Richard Nute: ri...@ieee.org > Jim Bacher: j.bac...@ieee.org > >All emc-pstc postings are archived and searchable on the web at: > No longer online until our new server is brought online and the old messages are imported into the new server. Get your FREE download of MSN Explorer at http://explorer.msn.com --- 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 subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server.
RE: Immunity testing of Headset
A technique commonly used and I believe may have been investigated by British Telecom is to use a piece of plastic tubing (garden hose) to couple the acoustic level to a point removed from the field. Keeps the microphone out of the field and avoids perturbing the field at the EUT. The system can be calibrated by holding an acoustic calibrator against the EUT end of the tube. We use a Bruel and Kjaer microphone preamp and power supply (expensive kit). The measuring device - psophometer/spectrum analyser must have a bandwidth of less than 100 Hz at a frequency of 1 kHz. Hope this is of use. I would welcome other comments on the methods. BT did a lot of work and had a nice system that plotted the telephone audible output against frequency, the older models were not very good. There should be a paper available. John Cronin A >From: "HALL,KEN (HP-Roseville,ex1)" >Reply-To: "HALL,KEN (HP-Roseville,ex1)" >To: "'Geoff Lister'" , "'Jon Jones'" >CC: Emc-Pstc >Subject: RE: Immunity testing of Headset >Date: Fri, 24 Aug 2001 08:54:59 -0700 > > >Hello all, > >Very interesting questions. > >While at the C63 meeting one of the attendees asked how we measure the >acoustic noise from speakers when testing radiated and conducted Immunity. >We do not test PC's with speakers so no requirement. Telephone Terminal >Equipment has a similar requirement. > >What equipment is generally used to test the acoustic noise levels specified >in CISPR 24 Annex A while performing Radiated and conducted immunity? > >Help, > >Ken Hall > > > >-Original Message- >From: Geoff Lister [mailto:geoff.lis...@motion-media.com] >Sent: Thursday, August 23, 2001 2:59 AM >To: 'Jon Jones' >Cc: Emc-Pstc >Subject: RE: Immunity testing of Headset > > > >Jon, >EN55024 uses the IEC 61000-4-x series to define the >test set-up. I had a quick look at 61000-4-6 and could >only find a reference to a handset. This, in turn refers >to IEC CISPR 16-1 for the details of the artificial hand. >The telephony sections of EN55024 are based on a standard >POTS or ISDN audio telephone with a handset. >In the real world, the effects of a human holding a >handset and wearing a headset would be similar. >Most handsets have a similar shape, and are catered for >by CISPR 16. >The answer to your question may be buried deep in one of >the normative references. For EN55024 Annex A, you will >need to measure the sound pressure level at the earphone, >as you would with a normal handset. If you placed part of the >headset in the artificial hand, you would be showing due >diligence in meeting the spirit, if not the letter, of the test set-up. > >My opinion, not necessarily that of my employer. > >Geoff Lister >Senior Engineer >Motion Media Technology Ltd., >Bristol, UK. >http://www.motion-media.com > >-Original Message- >From: Jon Jones [mailto:jon.jo...@ascom.co.uk] >Sent: 21 August 2001 12:37 >To: Emc-Pstc >Subject: Immunity testing of Headset > > > >Group: > >Performing RF immunity testing to EN55024 on a telephone, an artificial >capacitive hand must be placed around a telephone handset. Does anyone know >of if there is a similar requirement when testing a Headset ? > >Thanks in advance > >Jon Jones >Senior Approvals Engineer >Ascom Telecommunications Ltd. > > >--- >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 subscription, send mail to: > majord...@ieee.org >with the single line: > unsubscribe emc-pstc > >For help, send mail to the list administrators: > Michael Garretson: pstc_ad...@garretson.org > Dave Heald davehe...@mediaone.net > >For policy questions, send mail to: > Richard Nute: ri...@ieee.org > Jim Bacher: j.bac...@ieee.org > >All emc-pstc postings are archived and searchable on the web at: > No longer online until our new server is brought online and the old >messages are imported into the new server. >--- >Incoming mail is certified Virus Free. >Checked by AVG anti-virus system (http://www.grisoft.com). >Version: 6.0.265 / Virus Database: 137 - Release Date: 18/07/01 > > >--- >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 subscription, send mail to: > ma
FCC + FCC = FCC?
Hi Group This is a question regarding a plug in PC card that has been stated as FCC compliant which is inserted in a PC that is also stated to be FCC compliant and the emissions are found to actually exceed the FCC limits. What is the responsibility of the manufacturer who is intending to place this on the market as a functional unit? Are they liable for the overall unit or can they sell on the basis that it comprises FCC compliant sub assemblies, albeit evidently originally tested in different configurations. If they are liable, how can anyone sell any PC/PC card combination considering that the card could have originally been tested in a so called golden PC. Many thanks John CroninGet Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. --- 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 subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: http://www.rcic.com/ click on "Virtual Conference Hall,"
Re: 2. 4 GHz cordless telephone, question of general interest
Two points regarding this question. I understand that 2.4 GHz is not a resonant frequency of the water molecule which resonates at a much higher frequency. 2.4 GHz is just the ISM frequency. Also the depth of penetration is only a few cm at 2.4 GHz and is somewhat higher at 900 MHz. 27 MHz diathermy gives a very good depth of penetration and more even heating through human joints. Regards John Cronin >From: "Ralph Cameron" >Reply-To: "Ralph Cameron" >To: "Ken Javor" , >Subject: Re: 2. 4 GHz cordless telephone, question of general interest >Date: Fri, 20 Apr 2001 22:39:29 -0400 > > >In terms of heating ( cooking ) 900Mhz is more efficient but its a question >then of density of tissue , I understand that between 70-90Mhz the human >body absorbs most energy and that first microwave ovens were designed around >450Mhz but 2.4 Ghz was an I.S.M. band so permitted limitless power. > >The leakage in the average Microwave oven should be so small that you'd >never hear it on a 2.4Ghz cell phone (i.e. 50Mhz off frequency) > >many offie type 2.4Ghz cordless phone use 900mw on the base unit and 200mw >on the handset. I would suspect the field intensity that close to the head >could be substantial. > >Ralph Cameron > >- Original Message - >From: "Ken Javor" >To: >Sent: Friday, April 20, 2001 5:40 PM >Subject: 2. 4 GHz cordless telephone, question of general interest > > > > > > Someone on this forum likely knows the answer to this question... > > > > I was at Wal-Mart the other day and they had 2.4 GHz cordless phones on > > clearance. My home cordless phones are 900 MHz. One is multiple >channels, > > the other is some kind of spread spectrum. 2.4 GHz is very close to 2450 > > MHz, the microwave oven frequency that resonates with H2O molecules. Is >2.4 > > GHz close enough to 2450 MHz to cause significantly more heating than 900 > > MHz (in the human head adjacent to the head/handset antenna)? I realize > > this is very low power relative to a cell phone, but I wonder if the issue > > was ever addressed. Another way of asking this question is, what is the >"Q" > > of H20 resonance? If it is much better than 50, the problem is not > > important. If it is 50 or less, then 2.4 GHz would transfer more energy >to > > head tissue than 900 MHz. One way of measuring this effect would be to >time > > how long it takes to raise the temperature of a beaker of water a set >amount > > at 2450 MHz, and then time how long it takes at 2400 MHz... > > > > But this all must have been done already... > > > > --- > > 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 subscription, send mail to: > > majord...@ieee.org > > with the single line: > > unsubscribe emc-pstc > > > > For help, send mail to the list administrators: > > Michael Garretson: pstc_ad...@garretson.org > > Dave Heald davehe...@mediaone.net > > > > For policy questions, send mail to: > > Richard Nute: ri...@ieee.org > > Jim Bacher: j.bac...@ieee.org > > > > All emc-pstc postings are archived and searchable on the web at: > > http://www.rcic.com/ click on "Virtual Conference Hall," > > > > > > >--- >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 subscription, send mail to: > majord...@ieee.org >with the single line: > unsubscribe emc-pstc > >For help, send mail to the list administrators: > Michael Garretson: pstc_ad...@garretson.org > Dave Heald davehe...@mediaone.net > >For policy questions, send mail to: > Richard Nute: ri...@ieee.org > Jim Bacher: j.bac...@ieee.org > >All emc-pstc postings are archived and searchable on the web at: > http://www.rcic.com/ click on "Virtual Conference Hall," > Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. --- 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 subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: http://www.rcic.com/ click on "Virtual Conference Hall,"
Re: ESD generators max Contact discharge level
I understood that only one company world wide had the patent for making the mercury wetted relay used in contact discharge ciruits, ABB if I remember correctly. I alos understood that these arc over at levels above 8 Kv. Is there a higher voltage offering available elsewhere? regards John Cronin >From: "Glyn Garside/TUV" >Reply-To: "Glyn Garside/TUV" >To: "Terry Meck" >CC: emc-p...@ieee.org >Subject: Re: ESD generators max Contact discharge level >Date: Fri, 20 Apr 2001 14:11:43 -0500 > > > > >>Does anyone recall [...] ESD generator that simulated [...] => +-10 kV >CONTACT discharge. > >I agree, your client _probably_ meant air, but better to ask. > >Nevertheless, as I recall, NoiseKen makes an ESD tester that does 16kV >contact / 30kV air. >http://www.noiseken.com/english/equip/equip.htm > > >Also, there seems to be a Haefely model -- PESD 3000 -- that offers 25kV >contact / 30kV air(?): >http://www.compliancesys.com/transientsystems.htm >There are probably other products, and most certainly other >vendors/distributors. (This was the first one my web search engine came up >with.) > >Online lists of vendors include: http://rbitem.com/products/default.asp > >USUAL DISCLAIMERS APPLY! >For information only. This is not intended to be an endorsement of any >product, vendor or website. > >Best Regards, Glyn > > >Glyn R. Garside (mailto:ggars...@us.tuv.com) >Senior Engineer, Industrial Machinery Division >TUV Rheinland of North America, Inc. (Chicago Office) >1945 Techny Rd, Unit 4, NORTHBROOK, IL 60062-5357, USA >http://www.us.tuv.com TEL 847-562-9888 ext 25 > > >--- >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 subscription, send mail to: > majord...@ieee.org >with the single line: > unsubscribe emc-pstc > >For help, send mail to the list administrators: > Michael Garretson: pstc_ad...@garretson.org > Dave Heald davehe...@mediaone.net > >For policy questions, send mail to: > Richard Nute: ri...@ieee.org > Jim Bacher: j.bac...@ieee.org > >All emc-pstc postings are archived and searchable on the web at: > http://www.rcic.com/ click on "Virtual Conference Hall," > Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. --- 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 subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: http://www.rcic.com/ click on "Virtual Conference Hall,"
Re: EN 55014-2
I have looked up the stanadard at this link http://bsonline.techindex.co.uk/ It costs 50 pounds sterling. I am sure it is available stateside. Best regards John Cronin From: "S Raz" Reply-To: "S Raz" To: "IEEE EMC Group" Subject: EN 55014-2 Date: Sun, 25 Feb 2001 15:34:28 +0200 Hello Group, I am looking for EN 55014-2 standard. I have searched the internet but have not been able to locate a site where this standard is avaliable. Can anyone help me? Thanks and Thanks to everyone who answered my previous questions. Shaike Raz _ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. --- 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 subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: http://www.rcic.com/ click on "Virtual Conference Hall,"
RE: Taiwan Contact Point
Many thanks for the responses. They have been most useful and I will be contacting the names supplied. We are located in Europe. I don't beieve that there is an EU APEC MRA. Is there one on the way? Also, we can't use a US lab as Taiwan only allows testing in the country of manufacture. Best regards From: Clement Dave-LDC009 To: "'John Cronin'" , emc-p...@ieee.org Subject: RE: Taiwan Contact Point Date: Tue, 20 Feb 2001 21:18:17 -0500 I thought under the APEC MRA you could get BSMI accreditation via NIST. David Clement Motorola Inc. Global Homologation Engineering 20 Cabot Blvd. Mansfield, MA 02048 P: 508-261-4389 F: 508-261-4777 C: 508-725-9689 E: <mailto:dave.clem...@motorola.com> -----Original Message- From: John Cronin [mailto:croni...@hotmail.com] Sent: Tuesday, February 20, 2001 6:06 PM To: emc-p...@ieee.org Subject: Taiwan Contact Point Hi When applying for Taiwan BSMI accreditation it is necessary to have a Taiwan contact point. We are considering applying for accreditation. Can anyone recommend a contact person? Best Regards John Cronin _ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. --- 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 line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org _ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. --- 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 subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: http://www.rcic.com/ click on "Virtual Conference Hall,"
Taiwan Contact Point
Hi When applying for Taiwan BSMI accreditation it is necessary to have a Taiwan contact point. We are considering applying for accreditation. Can anyone recommend a contact person? Best Regards John Cronin _ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. --- 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 line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org
Re: Need a CDN-T2 for 61000-4-6 conducted immunity test
Try Gert Gremmen at www.ce-test.nl He does very good value networks of which we have bought a few. They appear to be fully compliant and come with an individual calibration chart. Regards John Cronin From: j...@aol.com Reply-To: j...@aol.com To: t...@world.std.com, emc-p...@majordomo.ieee.org Subject: Need a CDN-T2 for 61000-4-6 conducted immunity test Date: Fri, 19 Jan 2001 10:01:36 EST Dear Listmembers: I would like to purchase a CDN (coupling-decoupling network) for performing the conducted RF immunity test called out in EN 55024. The specific CDN that I am interested in is the "CDN-T2" for 2-wire unshielded twisted pair, as shown in Figure D.4 of 61000-4-6. Can any of you recommend some suppliers who sell this device? So far I have identified only one small company in California. When I called to get more information I had a most unpleasant experience, so I would prefer to spend my money elsewhere if possible. I also have a couple of questions that I'm hoping you can help me with: 1) What specific performance parameters should I should be looking for in this CDN? 2) I note that the ISN (impedance stabilization network) in Figure D.1 of EN 55022 has a similar schematic to the CDN-T2. Is it possible to use the CDN-T2 for the EN 55022 conducted emissions test as well? My primary interest is in being able to perform the conducted immunity test per EN 55024, but it might be nice to be able to perform the conducted emissions test per EN 55022 as well. Any suggestions for recommended vendors would be welcome. Joe Randolph Telecom Design Consultant Randolph Telecom, Inc. 781-721-2848 http://www.randolph-telecom.com _ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. --- 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 line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org
EMC Requirements for Turkey
Can anyone in the group help me with EMC requirements for Turkey. The product has a mains port and a PSTN telecoms port only. Do they ahve any specific requirements or do they accept the CE mark as I understand they are an aspiring EU member state? Many thanks in advance. John Cronin _ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. Share information about yourself, create your own public profile at http://profiles.msn.com. --- 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 line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org
Re: CEI 255
255-4 is a 1.2/50uS pulse via 500 ohms output impedance. If memory serves me correctly it is an insulation test. I believe I have details of the 255-5 if yuo wish the essential details. Versions of these are available to purchase off the IEC website www.iec.ch ? regards John Cronin From: "Maxwell, Chris" Reply-To: "Maxwell, Chris" To: "'EMC-PSTC Internet Forum'" Subject: CEI 255 Date: Fri, 29 Sep 2000 13:36:37 -0400 Guys, (ladies too) We have a customer specification in spanish which refers to "CEI 255-4" and "CEI 255-5". I am assuming that these are "IEC" specifications. As a matter of fact, the text reads (forgive my Spanish spelling) CONDICIONES ELECTROMAGNETICAS (I think I can figure this line out :-) Toda las bornas y conectores dberan ser capaces de superar las siguientes condiciones sin midificar su rendimiento de trabajo. 4.1 Aislamiento: 2KV/50hz/1m. segun norma CEI 255-5 4.2 Pertubaciones Impulso de tension 5KV segun norma CEI 255-5 Interferencias de A.F. 2.5KV en modo longitudinal Interferencia de A.F. 1KV en modo transversal, segun norma CEI 255-4; apartado E. Anybody want to fathom a guess at this? My catalog of standards does not include either a CEI 255 or an IEC 255. Gracias Chris Maxwell a.k.a. "Speedy Gonzales", Designo Engineero GN Nettest Optical Division 6 Rhoads Drive, Building 4 Utica, NY 13502 PH: 315-797-4449 FAX: 315-797-8024 EMAIL: chr...@gnlp.com --- 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 line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org _ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. Share information about yourself, create your own public profile at http://profiles.msn.com. --- 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 line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org
RE: A14 to EN61000-3-2 Did it pass?
Yes prA14 did pass I have been reliably informed. It will be interesting to see when it is going to be published in the OJEC. John Cronin From: wo...@sensormatic.com Reply-To: wo...@sensormatic.com To: emc-p...@majordomo.ieee.org Subject: RE: A14 to EN61000-3-2 Did it pass? Date: Mon, 18 Sep 2000 14:57:11 -0400 A14 moves all equipment out of Class D except for personal computers and televisions, and the 75 lower limit remains. However, the dop is scheduled to be after 2001-01-01. Until then, our Notified Body (SEE) is accepting prA14 for use in a TCF. Richard Woods -- From: Jim Eichner [SMTP:jim.eich...@xantrex.com] Sent: Monday, September 18, 2000 2:30 PM To: 'EMC-PSTC - forum' Subject: RE: A14 to EN61000-3-2 Did it pass? Follow-on question: Just to be really sure I haven't missed anything, A14 is a clarification of requirements and test methods and does nothing to postpone the drop dead date for this standard, right? Thanks, Jim -Original Message- From: Tolbert, J. Joe x1105 [mailto:jtolb...@genicom.com] Sent: Monday, September 18, 2000 10:34 AM To: 'emc-p...@ieee.org' Subject: A14 to EN61000-3-2 Did it pass? Was Amendment 14 accepted? I understood that it was suppose to be voted on last Friday. Joe --- 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 line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org --- 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 line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org --- 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 line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org _ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. Share information about yourself, create your own public profile at http://profiles.msn.com. --- 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 line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org
Re: Is magnetic field harmful
There is not currently a European wide mandatory requirement to limit the levels of electroimagnetic field strengths. However, the EMF recommendation, available in pdf format from the European Commission website dated 12 July 1999 requests Memeber States to put limits into their national legislation. These are largely based on ICNIRP guidelines. My understanding is that induction hobs do comply with the localised exposure limits and as such would not be a hazard to health as defined by ICNIRP. If you need a copy of the Recommendation I can email it to you. Best Regards John Cronin From: Alfred Reply-To: Alfred To: "'emc-p...@majordomo.ieee.org'" Subject: Is magnetic field harmful Date: Thu, 25 May 2000 23:17:50 +0800 Hi! Everybody. I need your technical comments on the issue regarding the Induction cooker, it is using magnetic field to generate heat on the metallic pan. The question is: 1.Is there any requirement in Sweden or European countries or US to control the magnetic field strength? What's the limit? And the impact to the health. I believe there is at least one for I read it from the news. 2.Is it safe to use this appliance? Do SAR (Specific Absorption rate) requirement apply to this product. We are highly appreciate if you can send us some of these information. Thanks and best regards, Alfred Lo. --- 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 line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com --- 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 line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org
Taiwan, information on EMC certification
Dear Group I have seen a number of messages regarding Taiwan in the newsgroup at one time or another. Unfortunately I ignored these on the assumption that I would never need them. Would you believe it, I now have a requirement to send equipment to Taiwan. I would be most obliged if anyone has saved a string on the subject or could refer me to the appropriate website. Many Thanks John Cronin Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com --- 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 line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org
Average Measurements above 1 GHz
I recently put out a question on measurements above I GHz. I got several replies for which many thanks. The recommendations were to try several suppliers for pre-amps. These included HP 8449, Miteq (low noise amps) and TEC in Mountain View. We actually used two Mini Circuits preamps in series which have enabled us to gain the necessary gain and noise figure. Now that we can carry out measurements at 3m I have another question. How to perform average measurements above 1 GHz. Most analyzers do not appear to have a specific CISPR compliant average function. So how is the average measurement carried out? Use of the average detector could yield a few dB lower levels even for a narrowband emission. As a point of information I note that the proposal for CISPR 22 measurements above 1 GHz does not allow the use of an average detector. This could pose eventual problems for manufacturers as it represents a considerable tightening on the current FCC limits. I would be most grateful for any information on carrying out compliant average measurements. Regards John Cronin __ Get Your Private, Free Email at http://www.hotmail.com - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: "unsubscribe emc-pstc" (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators).
Amplifier for measurements above 1GHz
I am hoping to purchase a 1 to 5 Ghz amplifier to be used in conjunction with a spectrum analyzer to measure emissions at 3m to FCC requirements. With a 1 MHz bandwidth into a HP microwave analyzer we can only currently measure at 1m. Can we get away with measurements at 1m? Can anyone recommend a low cost microwave amplifier that is suitable for the task? Thanks in anticipation of your response. John Cronin __ Get Your Private, Free Email at http://www.hotmail.com - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: "unsubscribe emc-pstc" (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators).
