Re: EMC in the news: RFID Medical

2008-06-26 Thread E. Robert Bonsen
Published in the Journal of the American Medical Association: http://jama.ama-assn.org/cgi/content/short/299/24/2884 $15 to download the article. From the summary, no real info on the test process: *Design and Setting * Without a patient being connected,^ EMI by 2 RFID systems (active 125

RE: Antenna factors to be used for NSA measurement

2000-03-16 Thread Robert Bonsen
it does not pose an immediate problem. However it is an issue with normalized site attenunation measurements. More work is currently being done in this area and the issues are being addressed. -Robert Robert Bonsen Principal Consultant Orion Scientific email: rbon...@orionscientific.com URL

Re: Antenna factors to be used for NSA measurement

2000-03-15 Thread Robert Bonsen
, CISPR22). Hope this helps. For a little more detail, check my web site. Regards, -Robert Robert Bonsen Principal Consultant Orion Scientific email: rbon...@orionscientific.com URL: http://www.orionscientific.com phone: (512) 347 7393; FAX: (512) 328 9240

Re: MIL-STD-285

2000-03-09 Thread Robert Bonsen
performed as needed for the application of the shielded room. Regards, -Robert Robert Bonsen Principal Consultant Orion Scientific email: rbon...@orionscientific.com URL: http://www.orionscientific.com phone: (512) 347 7393; FAX: (512) 328 9240

Re: carbon-impregnated foam pyramids

1999-11-11 Thread Robert Bonsen
for performance measurements of absorbers that I'm aware of. The de facto absorber test standard referenced by most absorber manufacturers is a university of Michigan report describing the arch method (plane wave). Hope this helps. -Robert Robert Bonsen Principal Consultant Orion Scientific email: rbon

RE: Precompliance Testing

1999-05-06 Thread Robert Bonsen
, but as indicated it is not usable for compliance testing (yet?). Reference: http://www.sara.com/cassper Regards, -Robert Robert Bonsen Principal Consultant Orion Scientific email: rbon...@orionscientific.com URL: http://www.orionscientific.com phone: (512) 347 7393; FAX: (512) 328 9240

Re: Characterizing a screen room

1999-04-28 Thread Robert Bonsen
, you will even out the variations which will result in fairly usable, repeatable numbers. The size of the room determines the usable frequency range. Regards, -Robert Robert Bonsen Principal Consultant Orion Scientific email: rbon...@orionscientific.com URL: http://www.orionscientific.com phone

RFC: feasibility of online test equipment exchange

1999-04-22 Thread Robert Bonsen
...@orionscientific.com I will post a summary of the responses. Regards, -Robert Robert Bonsen Principal Consultant Orion Scientific email: rbon...@orionscientific.com URL: http://www.orionscientific.com phone: (512) 347 7393; FAX: (512) 328 9240 - This message is coming from the emc-pstc

RE: Conductive Paint

1999-04-16 Thread Robert Bonsen
application, but they do go into mechanical and durability issues. Just thought I'd mention it. -Robert Robert Bonsen Principal Consultant Orion Scientific email: rbon...@orionscientific.com URL: http://www.orionscientific.com phone: (512) 347 7393; FAX: (512) 328 9240 - This message

vehicle EMC and safety regs in EU

1998-12-21 Thread Robert Bonsen
SAE and CISPR standards, but I'm wondering which ones are mandated by the EU. Any directives on that? I would also like to hear from test houses who can do the kind of testing (EMC and safety) as described in the standards on vehicle testing. Happy holidays to all. Regards, -Robert Robert Bonsen

Re: 10m Indoor OATS Facelift

1998-11-24 Thread Robert Bonsen
their time and expertise to help customers decide on the best solution for the customer's testing requirements. Independent consultants do not gain from selling anything. There is a difference. Just an FYI. original message deleted Regards, -Robert Robert Bonsen Principal Consultant Orion

Re: where we do it

1998-11-21 Thread Robert Bonsen
, the designs are close to the practical limits on footprint (dictated by measurement range and quiet zone size) and performance. Regards, -Robert Robert Bonsen Principal Consultant Orion Scientific email: rbon...@orionscientific.com URL: http://www.orionscientific.com phone: (512) 347 7393; FAX: (512

RE: ANSI C63.4 -- ferrites

1998-11-14 Thread Robert Bonsen
if the tester is not aware of the problem. For better repeatability and better NSA measurements, ferrites are required. They do not make the cable totally RF-invisible but do considerably reduce the influence of the cable on the measurements. Regards, -Robert Robert Bonsen Principal Consultant