http://www.abcfoxmontana.com/story/25679777/plane-just-misses-sunbather-on-beach-in-low-landing

Apparently Gert has been flying over the beach and was distracted by the LED 
lamp in this guy's back pocket!


Gmac

-----Original Message-----
From: Pettit, Ghery [mailto:ghery.pet...@intel.com] 
Sent: Wednesday, June 04, 2014 11:15 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

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.

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