Re: [PSES] RF absorber for EMC room

I will agree with Brent completely on this. Prior to retiring I've had chambers built both ways. Carbon loaded pyramidal foam absorbers are big. The chamber I had built for Tandem Computers in 1989 had cones that were 8 feet tip to base. The chambers I had built for Intel Corporation back in 199

Re: [PSES] EMC emission Class A versus Class B

Hi Chris, I have not be involved in this argument I’ll call it for over a decade. The common argument for class B given to me decades ago when I worked for a telecom company that sold business/commercial hardware systems was that if a company was located in a High St. shop that had an apart

Re: [PSES] engineering rules of thumb

Forgot link to one of John Campbel’s presentation to see his style. A modified version of this is the style I will use on Thursday. I think this style can be very useful in engineering presentations especially if you have to whip up something quickly without a lot of work. https://youtu.be/cYdI

Re: [PSES] engineering rules of thumb

I had mentioned the I was inspired by the presentation style of Dr. John Campbell (except I mistyped his name or autocorrect struck). Here is a link to his post yesterday if you want to take a look BTW, his daily update is very good and his presentation style is perfect if you need to do a pres

[PSES] EMC emission Class A versus Class B

All I’d be interested to hear views on the use of Class A EMC emission limits for equipment that is intended for use in non-domestic (commercial, light industrial) properties; I’m only concerned with the EU situation here. More than one well known manufacturer of test equipment (e.g. oscillosc