Hi All, I reported on the grow light issue some months ago.
http://www.edn.com/electronics-blogs/the-emc-blog/4438864/How-cops-are-finding--grow-ops--with-AM-radios <http://www.edn.com/electronics-blogs/the-emc-blog/4438864/How-cops-are-finding--grow-ops--with-AM-radios> Cheers, Ken _______________________ I'm here to help you succeed! Feel free to call or email with any questions related to EMC or EMI troubleshooting - at no obligation. I'm always happy to help! Kenneth Wyatt Wyatt Technical Services LLC 56 Aspen Dr. Woodland Park, CO 80863 Phone: (719) 310-5418 Email Me! <mailto:[email protected]> | Web Site <http://www.emc-seminars.com/> | Blog <http://design-4-emc.com/> The EMC Blog (EDN) <http://www.edn.com/blog/The-EMC-Blog> Subscribe to Newsletter <http://www.emc-seminars.com/Newsletter/Newsletter.html> Connect with me on LinkedIn <http://www.linkedin.com/in/kennethwyatt> > On Oct 15, 2015, at 9:38 AM, Sundstrom, Mike <[email protected]> > wrote: > > Ed, > Some of the lamps have a warning to not use at USCG radio sites. > > Thanks, > > Michael Sundstrom > Garmin Compliance Engineer > 2-2606 > (913) 440-1540 > KB5UKT > > “Never give up on a dream just because of the time it will take to accomplish > it. > The time will pass anyway.” > Earl Nightingale > > From: Ed Price [mailto:[email protected]] > Sent: Thursday, October 15, 2015 10:21 AM > To: [email protected] > Subject: Re: [PSES] SV: [PSES] Stricter limits than legal (CISPR11, IEC, > etc,) Where? > > The ARRL (American Radio Relay League, the US national ham radio club) has > its own shielded enclosure and EMI lab. They have recently tested > agricultural "grow lights" and have found almost every sample exceeds CE > limits (some by almost 60 dB). After no success in solving this condition > with the manufacturers, the ARRL has submitted their data to the FCC and > asked for recalls of the offending models. Hams also report problems with the > switching power supplies associated with commercial LED light bulbs. > > It will be interesting to see how the FCC reacts to a request to recall large > volumes of consumer products; as far as I know, the last time the FCC was > faced with controlling a large and uncaring market was back in the CB radio > era of the 1970’s, and that didn’t work out very well at all. > > Ed Price > WB6WSN > Chula Vista, CA USA > > -----Original Message----- > From: CR [mailto:[email protected] <mailto:[email protected]>] > Sent: Thursday, October 15, 2015 6:27 AM > To: [email protected] <mailto:[email protected]> > Subject: Re: [PSES] SV: [PSES] Stricter limits than legal (CISPR11, IEC, > etc,) Where? > > On 10/14/2015 10:25 PM, Ted Eckert wrote: > > > > It is fairly common to run into issues where one product causes > > interference where it shouldn’t. > > > > http://www.compliance-club.com/archive/old_archive/Bananaskins.htm > > <http://www.compliance-club.com/archive/old_archive/Bananaskins.htm> > > > > Do note that the archive only covers up to 2004. I've had occasion to cite > entry 3. > > I suspect the relative scarcity of reported problems may be ascribed to > proactive standards that are revised when the need becomes evident; one > reason I got a contract in 2004 -- and why it was extended. > > Those of us who are Amateur Radio operators will have perhaps gotten involved > in the myriad issues of new technology versus existing. I filed comments in > the FCC's rulemaking on BPL (UK:PLT/PLC), which agency in the past has acted > as if it had gotten orders to ignore some kinds of complaints -- a > non-technical issue, eh? > > Some complaints answer the "why margin?" question, if possibly for a > different reason than why we sometimes want it. > > About 15 years ago, residents of a New Jersey neighborhood started > complaining about hearing a local AM station (really local: 10KW in the > middle of the development) on their answering machines and telephones.The odd > thing was that this apparently coincided with its switch from an "Easy > Listening" music format to Korean language evangelism (I suspect a power > increase as well). In any case, when the customer ordered equipment for that > neighborhood he could (and IMO > should) have considered proximity of pole-mounted power and other wiring to a > high power RF source not anticipated by standards-writers. > > Cortland Richmond > > - > - > ---------------------------------------------------------------- > This message is from the IEEE Product Safety Engineering Society emc-pstc > discussion list. To post a message to the list, send your e-mail to > <[email protected] <mailto:[email protected]>> > > All emc-pstc postings are archived and searchable on the web at: > http://www.ieee-pses.org/emc-pstc.html > <http://www.ieee-pses.org/emc-pstc.html> > Attachments are not permitted but the IEEE PSES Online Communities site at > http://product-compliance.oc.ieee.org/ > <http://product-compliance.oc.ieee.org/> can be used for graphics (in > well-used formats), large files, etc. > > Website: http://www.ieee-pses.org/ <http://www.ieee-pses.org/> > Instructions: http://www.ieee-pses.org/list.html (including how to > unsubscribe) <http://www.ieee-pses.org/list.html> > List rules: http://www.ieee-pses.org/listrules.html > <http://www.ieee-pses.org/listrules.html> > For help, send mail to the list administrators: > Scott Douglas <[email protected] <mailto:[email protected]>> > Mike Cantwell <[email protected] <mailto:[email protected]>> > > For policy questions, send mail to: > Jim Bacher <[email protected] <mailto:[email protected]>> > David Heald <[email protected] <mailto:[email protected]>> > > > > CONFIDENTIALITY NOTICE: This email and any attachments are for the sole use > of the intended recipient(s) and contain information that may be confidential > and/or legally privileged. If you have received this email in error, please > notify the sender by reply email and delete the message. Any disclosure, > copying, distribution or use of this communication (including attachments) by > someone other than the intended recipient is prohibited. Thank you. > - > ---------------------------------------------------------------- > This message is from the IEEE Product Safety Engineering Society emc-pstc > discussion list. To post a message to the list, send your e-mail to > <[email protected] <mailto:[email protected]>> > > All emc-pstc postings are archived and searchable on the web at: > http://www.ieee-pses.org/emc-pstc.html > <http://www.ieee-pses.org/emc-pstc.html> > Attachments are not permitted but the IEEE PSES Online Communities site at > http://product-compliance.oc.ieee.org/ > <http://product-compliance.oc.ieee.org/> can be used for graphics (in > well-used formats), large files, etc. > > Website: http://www.ieee-pses.org/ <http://www.ieee-pses.org/> > Instructions: http://www.ieee-pses.org/list.html (including how to > unsubscribe) <http://www.ieee-pses.org/list.html> > List rules: http://www.ieee-pses.org/listrules.html > <http://www.ieee-pses.org/listrules.html> > For help, send mail to the list administrators: > Scott Douglas <[email protected] <mailto:[email protected]>> > Mike Cantwell <[email protected] <mailto:[email protected]>> > > For policy questions, send mail to: > Jim Bacher <[email protected] <mailto:[email protected]>> > David Heald <[email protected] <mailto:[email protected]>> > - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <[email protected]> All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. Website: http://www.ieee-pses.org/ Instructions: http://www.ieee-pses.org/list.html (including how to unsubscribe) List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <[email protected]> Mike Cantwell <[email protected]> For policy questions, send mail to: Jim Bacher: <[email protected]> David Heald: <[email protected]>
