TCF review procedures for CAB

2001-09-18 Thread Stuart Lopata
Does anyone know what the procedures are for reviewing TCFs as a certified CAB? I found little info regarding TCFs so any info would be greatly appreciate. Sincerely, Stuart Lopata --- This message is from the IEEE EMC Society Product Safety Technical

RE: WTC - voice alarm system?

2001-09-18 Thread Whitehouse, Terence (Terry)
Ed, The name of this forum is EMC-PSTC - EMC and product safety. For us a group, speculating on general matters of security is not appropriate. There are other professional bodies and organizations created and staffed specifically to address this very sensitive subject. Let us focus on what

RE: Swiss RTTE implementation

2001-09-18 Thread UMBDENSTOCK
Gert, Do you know if Switzerland generally follows the same rules -- including the use of harmonized standards allowing for self-certification when applying the RTTE Directive? Even though the OJ is not a factor in Swiss law, for standards announced in the OJ, does Switzerland require the

RE: Swiss Web Site

2001-09-18 Thread UMBDENSTOCK
Thanks for the additional details, Gert. Best regards, Don -- From: CE-test - Ing. Gert Gremmen - ce-marking and more...[SMTP:cet...@cetest.nl] Reply To: cet...@cetest.nl Sent: Tuesday, September 18, 2001 1:57 PM To: umbdenst...@sensormatic.com;

RE: 2 GHz Amplifiers

2001-09-18 Thread UMBDENSTOCK
Great input, Ken. Thanks for your help. Best regards, Don -- From: Ken Javor[SMTP:ken.ja...@emccompliance.com] Sent: Tuesday, September 18, 2001 11:33 AM To: umbdenst...@sensormatic.com; emc-p...@majordomo.ieee.org Subject: Re: 2 GHz Amplifiers Twenty

RE: Swiss Web Site

2001-09-18 Thread CE-test - Ing. Gert Gremmen - ce-marking and more...
As its only a telecommunications institute ! The RTTE directive has been adopted by Swiss law since May 1st 2000. Regards, Gert Gremmen, (Ing) ce-test, qualified testing === Web presence http://www.cetest.nl CE-shop

RE: European Economic Area

2001-09-18 Thread CE-test - Ing. Gert Gremmen - ce-marking and more...
Hello Group I am currently involved in an RTTE procedure with bakom in Switzerland. It is believed that Switzerland follows the same procedures as the EC as an alternative to it's own. A standard notification procedure by a NB referring to the RTTE directive should be sufficient. Regards, Gert

RE: performance criterion A

2001-09-18 Thread CE-test - Ing. Gert Gremmen - ce-marking and more...
Yes Chris, this is exactly what the criterium A is about. The manufacturer should specify the performance of the product during exposure to radiated (or conducted) RF-interference. The device should of course not loose 100 % of it's performance though. This way, ideally, customers are able to

Re: Limited Current

2001-09-18 Thread John Woodgate
I read in !emc-pstc that Rich Nute ri...@sdd.hp.com wrote (in 200109181539.iaa02...@epgc196.sdd.hp.com) about 'Limited Current', on Tue, 18 Sep 2001: No, I am not sure that there would be measurable x-radiation at the faceplate of an 8 kV 1-inch crt. But, based on the above technical facts, I

Re: WTC - voice alarm system?

2001-09-18 Thread John Woodgate
I read in !emc-pstc that david_ster...@ademco.com wrote (in OF3B252313. 8e4a0b52-on85256acb.00429...@ademco.com) about 'WTC - voice alarm system?', on Tue, 18 Sep 2001: This is not a secure forum. I strongly urge people not to post security information for buildings here. All of us in the NYC

performance criterion A

2001-09-18 Thread Colgan, Chris
According to EN50082-1, no degradation of performance below a performance level specified by the manufacturer is allowed whereas EN55020 gives a clear cut wanted/unwanted signal to noise ratio of 40dB. Now say my audio amplifier specs give a signal to noise ratio of x dB but also state in a

Re: Limited Current

2001-09-18 Thread Rich Nute
Hi John: Are you sure that you can get appreciable X-radiation at 8 kV? In the days of monochrome TV with 9 and 12 inch tubes running at 8 kV, we never bothered about X rays, but projection sets running at 25 kV were known as a radiation hazard. Maybe tolerance levels have been

Re: 2 GHz Amplifiers

2001-09-18 Thread Ken Javor
Twenty years go microwave amps of 1 W or more power output were all TWTAs. Nowadays a 10 W amp or less from 1 - 2 GHz could be solid-state. I have no experience with those personally. Do you still have to illuminate that 1.5 m square above 1 GHz? Then you would need a very powerful amplifier

RE: WTC - voice alarm system?

2001-09-18 Thread Price, Ed
-Original Message- From: david_ster...@ademco.com [mailto:david_ster...@ademco.com] Sent: Tuesday, September 18, 2001 5:07 AM To: j...@jmwa.demon.co.uk; emc-p...@majordomo.ieee.org Subject: RE: WTC - voice alarm system? This is not a secure forum. I strongly urge people not to

2 GHz Amplifiers

2001-09-18 Thread UMBDENSTOCK
Hello Friends, In searching for the best value for power amplifiers for the 2 GHz radiated immunity limit. I have come across a few vendors that I am not personally familiar with. I have used Amplifier Research and Schaffner/Chase products at other frequencies and have been satisfied with the

RE: WTC - voice alarm system?

2001-09-18 Thread David_Sterner
This is not a secure forum. I strongly urge people not to post security information for buildings here. All of us in the NYC area still grieve for our loved ones, or have close friends who are grieving. David Sterner ADEMCO Syosset, NY -Original Message- From:

Re: Limited Current

2001-09-18 Thread John Woodgate
I read in !emc-pstc that Rich Nute ri...@sdd.hp.com wrote (in 200109172148.oaa00...@epgc196.sdd.hp.com) about 'Limited Current', on Mon, 17 Sep 2001: Beware of x-radiation from this crt. Larger crt's operating at 8 kV have relatively thick faceplates which attenuate the x-radiation.

Re: UL requirement for driver

2001-09-18 Thread Rich Nute
[quote]Hi, I am basically an EMC guy and do not know much about UL requirements. I would like to know if there are any UL requirements for a driver with output voltage swing of +/- 30V peak-to-peak. The RMS voltage will be much smaller, and the power will be less than 0.5 watt. The driver is