[PSES] SV: Conducted emission - AC line filters makes it worse

I'll try to describe. Unfortunately, I can't include pictures or plots. Product: Indoor Climate Central * 3-phase 400V/16A system (L3,L2,L1,N,PE) * 2 pcs 1-phase fans 500W (L1-N, L3-N) * 1 pcs touch panel / control module (L3-N) -> separate modul * Heating elements

[PSES] Wireless Self-Generated EMI Webinar - July 16, 2020

Hi All, just a short note, I’ll be presenting a webinar on self-generated EMI for wireless and IoT products this coming July 16, 2020. There will be two presentations; one for the U.S and EU and one for APAC. We’ll discuss why it affects cellular and other wireless modules, how to characterize

Re: [PSES] Currency requirements for FCC Part 15/ISED transmitter test reports

Hi all, As per RSS-GEN (ISED Canada): For equipment certification, the test report shall not be dated more than 12 months before the application for equipment certification is submitted. The tests within the test report may have been conducted more than 12 months before this date but must

Re: [PSES] Question regarding use of un certified radios.

Hi, There is one exception in the FCC part 15 standard, but the way you are presenting the problem it looks to me that you cannot apply, as you might not comply with the requirements of 15.5. I put it here anyways. §15.23 Home-built devices. (a) Equipment authorization is not required for dev

Re: [PSES] Currency requirements for FCC Part 15/ISED transmitter test reports

As far as I know in Canada and for ISED it is OK provided that you product complies to the latest version (issue) of the standard. Sincerely, Dieter Paasche Senior Product Developer, Electrical CHRISTIE 809 Wellington Street North Kitchener, ON N2G 4Y7 Phone: 519-744-8005 ext.7211 www.christied

Re: [PSES] Currency requirements for FCC Part 15/ISED transmitter test reports

You are correct in that the actual FCC rules do not prescribe how long a test report is good for. What you will find however, is that the FCC will generally require attestations from the grantee that any report older than one year still reflects the accuracy of the test results for the device.

[PSES] Currency requirements for FCC Part 15/ISED transmitter test reports

Worldly Experts, I seem to recall that exists some sort of shelf life limitation on re-using FCC/ISED test reports for subsequent new Certifications. I am unable to find documentation of this in the FCC Rules or KBDs. Perhaps this is just for Canada? (I have a little more difficulty searchi

Re: [PSES] Question regarding use of un certified radios.

Thank you! From: Dennis Ward Sent: Monday, June 29, 2020 11:29 AM To: Grasso, Charles [Outlook] ; EMC-PSTC@LISTSERV.IEEE.ORG Subject: RE: [PSES] Question regarding use of un certified radios. This message originated outside of DISH and was sent by: dennis.w...@pctest.com

Re: [PSES] Question regarding use of un certified radios.

Simple answer, NO it cannot be used. In fact, it cannot even be used within the companies premises without being certified. Any part 15 intentional radiator, no matter where used, be it on a company’s premises or anywhere, must be certified. The only exceptions to this are found in CFR 47 2.80

Re: [PSES] Question regarding use of un certified radios.

Charles, For your answer please refer to FCC 47 CRF Part 2 (see section I): https://www.ecfr.gov/cgi-bin/retrieveECFR?gp=&SID=7062fb7892b0ce0fd3b2af0524fc6308&mc=true&n=pt47.1.2&r=PART&ty=HTML Bill Stumpf – Lab/Technical manager D.L.S. Electronic Systems, Inc. Genoa City, WI 53128 (USA) From:

Re: [PSES] Question regarding use of un certified radios.

Hello all, Thanks for the followup questions! You all of course realize I am asking for a friend 😊 I am referring to the WiFi radios in the US market. So for example if company A designs a piece of test gear with WiFi radios (this question could also apply to RF4CE/Bluetooth etc) can that piec

Re: [PSES] Question regarding use of un certified radios.

Not knowing what area of the world you are speaking about, I can only say that for the US, NO wifi device can be sold or used without being certified. It does not matter in what field it is being used, it is a part 15 intentional radiator and requires certification. If the people who are telli

Re: [PSES] Question regarding use of un certified radios.

Hi Charles! For a US audience at least, this sounds like a conflation of two disparate concepts: 1) Radios offered for commercial sale generally require type acceptance but Amateur radio operators can use equipment which is not type-accepted (ie homebrewed) 2) There are certain services which are

Re: [PSES] Question regarding use of un certified radios.

Hi Charles, Any idea which country you're thinking about? USA? Canada? EU? Japan? In all the cases I can think of, I agree that "err, what? No!" is the correct answer. Michael. From: Grasso, Charles [Outlook] Sent: 29 June 2020 17:28 To: EMC-PSTC@LISTSERV.IEEE.ORG S

[PSES] Question regarding use of un certified radios.

Hello EMC standards gurus!!! I am being told that the use of uncertified radios (think WIFi) in the field is permitted as long as there are no commercial transactions involved. This makes no sense to me. Am I wrong? [Working From Home] Charles Grasso Dish Technologies (c) 303-204-2974 (h) 303

Re: [PSES] Conducted emission - AC line filters makes it worse

Hi – This IS an interesting problem! My question: Is the 3 –phase configures as a delta or a wye configuration? Also – What is the AC device (power supply/motors etc..) [Working From Home] Charles Grasso Crackpot Theorist Dish Technologies (c) 303-204-2974 (h) 303-317-5530 (e ) charles.gra...@di

Re: [PSES] Conducted emission - AC line filters makes it worse

I dealt with three phase a little bit at a previous employer. A couple items that become important is whether it's a balanced load on all three lines and if you're using a neutral conductor or not. We had options for with and without neutral. Typically, we power the controls and single phase mo