Re: [PSES] Risk Assessments and mitigation for EMC chambers

>From a RF Health and Safety point of view, why is a microwave oven allowed >with just an interlock on the door and not allowed for a RF enclosure for EMC? Human Exposure Limit will not apply if no human is in RF chamber when RF is on. Michael Sundstrom OHD TREQ Dallas Electronic Lab Analyst EM

Re: [PSES] Circuit Breakers - Branch Circuit Protection vs Supplementary

When I mind meld it doesn’t work for them. Just me! Michael Sundstrom OHD TREQ Dallas Electronic Lab Analyst EMC Lead (214) 579 6312 office (940) 390 3644 cell マイク KB5UKT From: jral...@productsafetyinc.com [mailto:jral...@productsafetyinc.com] Sent: Tuesday, December 03, 2013 2:27 PM To: EMC-PS

Re: [PSES] VHF-LISN for conducted emission test

Seems like a VLF LISN for below 150kHz might be what he is looking for, asking about?? Just guessing? Michael Sundstrom OHD TREQ Dallas Electronic Lab Analyst EMC Lead (214) 579 6312 office (940) 390 3644 cell マイク KB5UKT From: Ed Price [mailto:edpr...@cox.net] Sent: Thursday, November 14, 2013

Re: [PSES] EN55022:2006 vs. EN55022:2010

Brian, I'd test a 450 Lbs. device on a rolling cart, but this makes it a floor standing test then??? When I was at Nokia we had a closed cell foam 'table' 80cm tall by 1.25 m wide we used. It could hold 100 Lbs. maybe, not sure you'll find anything for 450 Lbs.??? Maybe a foam table with a pla

Re: [PSES] Definition of accessible parts

Just wait till all the mercury starts contaminating. Michael Sundstrom OHD TREQ Dallas Electronic Lab Analyst EMC Lead (214) 579 6312 office (940) 390 3644 cell マイク KB5UKT -Original Message- From: John Cotman [mailto:john.cot...@conformance.co.uk] Sent: Tuesday, November 05, 2013 10:

Re: [PSES] USA & Canada rf emission test standards

Ian, The Conducted RF Limits Frequency Band are lower than your stated starting point. Conducted Frequency limits for FCC are 450kHz to 30MHz. Conducted Frequency limits for CISPR are 150kHz to 30MHz. Now the FCC has said that it will accept the CISPR data, (47CFR15.33 I think) and Canada has sa

Re: [PSES] RTTE example

Tom, I was always taught FFC + FCC doesn't = FCC compliant... Or CE + CE doesn't = CE The whole system needs to be tested, because all combinations can't be covered by any one manufacturer testing. Michael Sundstrom OHD TREQ Dallas Electronic Lab Analyst EMC Lead (214) 579 6312 office (940) 39

Re: [PSES] ARPANSA limits

Who has any SAR equipment up past 10GHz or so? Michael Sundstrom OHD TREQ Dallas Electronic Lab Analyst EMC Lead (214) 579 6312 office (940) 390 3644 cell マイク KB5UKT -Original Message- From: Kunde, Brian [mailto:brian_ku...@lecotc.com] Sent: Wednesday, January 23, 2013 2:22 PM To: EM

Re: [PSES] Fischer CC EM Clamp F-203I-32mm

I once had an auditor who dinged me on not keeping the cables centered in the injection clamp. Next day I had foam cell material in the clamp, pretty much kept the cables centered. I don’t think it made much difference??? Well, no difference that I could see… Michael Sundstrom OHD TREQ Dallas

Re: [PSES] Appropriate ETSI standard for 433 MHz Band Radio

I thought the ISM 430 MHz band, had way less than 500 mW levels ??? Michael Sundstrom OHD TREQ Dallas Electronic Lab Analyst EMC Lead (214) 579 6312 office (940) 390 3644 cell KB5UKT From: Anthony Thomson [mailto:ton...@europe.com] Sent: Monday, August 20, 2012 8:04 AM To: EMC-PSTC@LISTSERV.IEE

Re: [PSES] EC vs EU suffix

And here all these years I thought it meant: Compliance Extraordinary... Michael Sundstrom OHD TREQ Dallas Electronic Lab Analyst EMC Lead (214) 579 6312 office (940) 390 3644 cell KB5UKT -Original Message- From: Crane, Lauren [mailto:lauren.cr...@kla-tencor.com] Sent: Thursday, Augu

Re: [PSES] Ophir Amplifier 5127F for Rent?

I'm betting on a broken connectorlook at each connector with a magnifier! Michael Sundstrom OHD TREQ Dallas Electronic Lab Analyst EMC Lead (214) 579 6312 office (940) 390 3644 cell KB5UKT -Original Message- From: John Woodgate [mailto:j...@jmwa.demon.co.uk] Sent: Friday, August

Re: [PSES] EU sets EMC limits for London Olympics

I thought (at one time) the backup to CDMA was AMPS service? Michael Sundstrom OHD TREQ Dallas Electronic Lab Analyst EMC Lead (214) 579 6312 office (940) 390 3644 cell KB5UKT From: IBM Ken [mailto:ibm...@gmail.com] Sent: Tuesday, August 07, 2012 7:57 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject:

Re: [PSES] FCC maximum frequency measurement

Highest frequency utilized in device. Michael Sundstrom OHD TREQ Dallas Electronic Lab Analyst EMC Lead (214) 579 6312 office (940) 390 3644 cell KB5UKT From: Mcburney, Ian [mailto:ian.mcbur...@dmh-global.com] Sent: Thursday, July 05, 2012 10:13 AM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: [PSES]

Re: [PSES] "Compliance costs too much."

I’ll bet shockingly well! Michael Sundstrom OHD TREQ Dallas Electronic Lab Analyst EMC Lead (214) 579 6312 office (940) 390 3644 cell KB5UKT From: Chan Moore [mailto:cmo...@brocade.com] Sent: Friday, March 30, 2012 11:05 AM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] "Compliance costs to

Re: [PSES] Wireless Telephone and Wireless Internet Clash - Follow-up #1

Scott, I would isolate the internal house data equipment on a surge protector / filter AC power box. This will ally some of the conducted power line issues you ask about. I'd then get online at the problem time and shut off each of the house breakers one at a time while seeing if the data clear

Re: [PSES] EFT Power Port Coupling Paths

No that applies to 'Good Engineering Practice' . I also have been told 'due diligence' is easy to prove with test data, seems to be harder without test data. Michael Sundstrom OHD TREQ Dallas Electronic Lab Analyst EMC Lead (214) 579 6312 office (940) 390 3644 cell KB5UKT -Original Me

Re: [PSES] AHJ vs AHJ

No he will just say More as the AHJ is named Ron...i.e. more ron! Or something like that! Michael Sundstrom OHD TREQ Dallas Electronic Lab Analyst EMC Lead (214) 579 6312 office (940) 390 3644 cell KB5UKT -Original Message- From: Peter Tarver [mailto:ptar...@enphaseenergy.com] Sent:

Re: [PSES] [***] Biconical Antenna Location During NSA for Off-Center Positions

Grace, You are paying the contractor for his expertise in NSA. So I'd assume if it was done wrong they'd have to come back and do it right? Michael Sundstrom -Original Message- From: John Woodgate [mailto:j...@jmwa.demon.co.uk] Sent: Thursday, January 12, 2012 2:28 PM To: EMC-PSTC@LISTS

Re: [PSES] Semi-Anechoic Chamber Question - Correction Factor

Bill, I'd guess 6dB as in voltage, with dBuV being used. Michael Sundstrom OHD / TREQ Dallas Electronic Lab Analyst, EMC Lead 2170 French Settlement Rd, Suite B Dallas, Texas 75212 (214) 579 6312 (940) 390 3644c KB5UKT Albert Einstein once said, "The definition of insanity is doing the same thi

Re: [PSES] EN 60950-1:2006+A12:2011

Two antennas??? Michael Sundstrom OHD / TREQ Dallas Electronic Lab Analyst, EMC Lead 2170 French Settlement Rd, Suite B Dallas, Texas 75212 (214) 579 6312 (940) 390 3644c KB5UKT Albert Einstein once said, "The definition of insanity is doing the same thing over and over again and expecting dif

Re: [PSES] Quasi-peak

Richard Schultz (of ANSI C63) always told me there were 3 answer to any EMC question asking about 'if' it will affect something? YES NO MAYBE I'd guess Mr. Schultz knew enough to say that! Michael Sundstrom OHD / TREQ Dallas Electronic Lab Analyst, EMC Lead 2170 French Settlement Rd, Suite B Da

Re: [PSES] UL assessment of plastics - DC vs AC

Brian, To be honest, who knows why UL does what they do? It appears that for years they have arranged test levels just to be different from IEC or whatever entity. Just my two cents, Michael Sundstrom OHD / TREQ Dallas Electronic Lab Analyst, EMC Lead 2170 French Settlement Rd, Suite B Dallas

RE: Company close down due to EMC phenomena

Guys, I don't think we want to forget that just one of these units will be in use. What would a whole country full of these units do to a mains network? I'd guess it to be very noisy indeed! Michael Sundstrom NOKIA TCC Dallas / EMC ofc: (972) 374-1462 cell: (817) 917-5021 amateur

RE: LISN Calibration

The only problem I see with not calibrating the LISN is you wouldn't know if / or when it goes bad until you cross check it with a calibrated LISN. I would suggest you run your precompliance lab just like the real lab. This way you'll get the same results as the accredited lab you test with. No

RE: EMC test table construction plans

We use a styrofoam table here at our lab, it is a round plug of styrofoam 80cm tall and 1m across. This has worked the best for us, and it has the least reflections at any frequency we can reliably test at. I would guess that some form of hard material on top of this type of table would support 20

RE: Difference between SA and Receiver

Most analyzers are not CISPR 16 compliant. Receivers are always easer to read QP and Avg. directly. If you can pass the CISPR limits with a peak reading (analyzer), you can most definitely pass the QP / Avg. limits with a receiver. For official testing a compliant (CISPR 16) device is always nee