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From the commercial side of broadcasting, but can’t we relate: http://www.tvtechnology.com/news/0002/eh-fcc-seeks-noise-floor/278840 <http://www.tvtechnology.com/news/0002/eh-fcc-seeks-noise-floor/278840>
Maybe someone knows if the ARRL is commenting on behalf of the amateur radio community. David A., KK6DA, Los Angeles David Ahrendts [hidden email] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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On Tue, 2016-06-21 at 09:11 -0700, David Ahrendts wrote:
> From the commercial side of broadcasting, but can’t we relate: http:/ > /www.tvtechnology.com/news/0002/eh-fcc-seeks-noise-floor/278840 > <http://www.tvtechnology.com/news/0002/eh-fcc-seeks-noise- > floor/278840> > Maybe someone knows if the ARRL is commenting on behalf of the amateur > radio community. > > David A., KK6DA, Los Angeles > I believe the ARRL is involved in this. Ed, or Mike might speak up... -- 73's, and thanks, Dave (NK7Z) For software/hardware reviews see: http://www.nk7z.net ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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In reply to this post by David Ahrendts
David,
This is interesting. But, how does it relate to the regulations already on the books having to do with incidental radiation? That's the regulation set that controls conducted and radiated noise from powerlines, TV, computers, etc. 73, Barry K3NDM ------ Original Message ------ From: "David Ahrendts" <[hidden email]> To: "[hidden email]" <[hidden email]> Sent: 6/21/2016 12:11:33 PM Subject: [Elecraft] OT - FCC Seeks "Noise Floor" >From the commercial side of broadcasting, but can’t we relate: >http://www.tvtechnology.com/news/0002/eh-fcc-seeks-noise-floor/278840 ><http://www.tvtechnology.com/news/0002/eh-fcc-seeks-noise-floor/278840> >Maybe someone knows if the ARRL is commenting on behalf of the amateur >radio community. > >David A., KK6DA, Los Angeles > > > >David Ahrendts [hidden email] > > > > >______________________________________________________________ >Elecraft mailing list >Home: http://mailman.qth.net/mailman/listinfo/elecraft >Help: http://mailman.qth.net/mmfaq.htm >Post: mailto:[hidden email] > >This list hosted by: http://www.qsl.net >Please help support this email list: http://www.qsl.net/donate.html >Message delivered to [hidden email] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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And the FCC will enforce anything?
Bill W2BLC K-Line ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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In reply to this post by Barry K3NDM
Well actually, not quite. Incidental radiators are the noisemakers such
a power lines arcing. They radiate RF but have no need to. They also do it across broad frequency ranges over several tens of MHz. Unintentional radiators are computers, wall warts and SMPS, plasma TV's, and the like. They generate RF internally for their operation, but do not intend to radiate it. Alas, thanks to James Maxwell, they do. Intentional radiators are those unlicensed devices that must radiate RF to function ... WiFi, Bluetooth, cell phones, etc. They tend to be confined to certain bands [usually ISM bands like 2.4 GHz]. Many are spread-spectrum types of signals, and in a narrow receive BW just raise the noise floor a bit. Some intentional radiators are in other than ISM bands. 443.93 MHz, familiar to most hams, is full of beeps, squawks, and other very short bursts. They're remote reading thermometers, and other sensors. Some RFID equipment operates on that and a few other frequencies which can be a problem for hams near ports, large rail yards, and intermodal yards. Pacific Gas and Electric remote-reading meters are said to be around 500 MHz in a mesh network of some sort. The TAC in the original link points out that quantitative data on the noise floor is sparse at best and very hard to obtain and analyze since it depends on so many factors in an almost infinite number of locations. As to FCC enforcement or the lack of it, in the 50's the Commission was very active in enforcement ... especially if it affected commercial communications. Today, the FCC is very much more a "Coordinator of Communications" than an enforcement agency. I've concluded that, "It is what it is," and there aren't many ways to quantify noise floor for a finite amount of investment dollars. 73, Fred K6DGW - Northern California Contest Club - CU in the Cal QSO Party 1-2 Oct 2016 - www.cqp.org On 6/21/2016 10:39 AM, Barry LaZar wrote: > David, > This is interesting. But, how does it relate to the regulations > already on the books having to do with incidental radiation? That's the > regulation set that controls conducted and radiated noise from > powerlines, TV, computers, etc. > > 73, > Barry > K3NDM ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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