We (pilots) even use it for less than critical communications. :-) Ghery S. Pettit
-----Original Message----- From: ce-test, qualified testing bv - Gert Gremmen [mailto:g.grem...@cetest.nl] Sent: Wednesday, June 04, 2014 11:06 AM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] radiated emissions testing may understate actual emissions, an example using a class D stereo amp Airplanes use AM for critical communications between airport and plane. A reliable connection may be the difference between a safe landing and a crash. Especially when flying low over LED lamps.... Gert -----Oorspronkelijk bericht----- Van: Rick Busche [mailto:rick.bus...@qnergy.com] Verzonden: woensdag 4 juni 2014 19:26 Aan: EMC-PSTC@LISTSERV.IEEE.ORG Onderwerp: Re: [PSES] radiated emissions testing may understate actual emissions, an example using a class D stereo amp Do we still have AM? Someone once called that was Ancient Modulation. :) I suspect that in a few years fluorescent lamps will give way to LED technology. As a side note, do LED lamps create EMI concerns? -----Original Message----- From: Richard Nute [mailto:ri...@ieee.org] Sent: Wednesday, June 04, 2014 11:02 AM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] radiated emissions testing may understate actual emissions, an example using a class D stereo amp On 6/4/2014 9:47 AM, Mike Violette wrote: "Class B limits are amazingly conservative, to which large populations of devices ascribe." Try using an ordinary AM radio beside a compact fluorescent lamp as on a beside table. - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. 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